Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
W3rdPl_3001
Date: Wednesday, October 24, 2018 Project Photographs — 3001 West 3rd Place Site Photos for Applicability Requirements �`' ',, . I 6 \ Pep? _,,i.-017,,ktii \,_ 0._,,,,,,_ ,vpuri,,,vorit,, yk,,,i,..e-y.,,,,-:,4„A",, ;..,44,,,o.,v, -,,,,,„4:,.,iffec . 11 \,,. hINV --e:_ s - : - ,,3a Stationing: N/A Location: 3001 West 3rd Place Description of Work: Existing site conditions after the Clear and Grade Permit Bid Item Work: N/A Photo taken by: Steven Lange (Engineering Tech IV) Page 1 of 6 R:\Proc-CFP-Dev-Lange\Corr\3001 West 3rd Place\10-24-18 Project Photos.doc Date: Wednesday, October 24, 2018 Project Photographs — 3001 West 3rd Place Site Photos for Applicability Requirements $ 1 . , -- 13 M _ u� ID ` �. m 4 {"1 s e".fit j ��.{` 4 ham,- Stationing: N/A Location: 3001 West 3rd Place Description of Work: Existing site conditions after the Clear and Grade Permit Bid Item Work: N/A Photo taken by: Steven Lange (Engineering Tech IV) Page 2 of 6 R:\Proc CFP-Dev-Lange\Corr\3001 West 3rd Place\10 24-18 Project Photos.doc Date: Wednesday, October 24, 2018 Project Photographs — 3001 West 3rd Place Site Photos for Applicability Requirements , �; k ' ,:',. s'i,.N _ • -_ _,,,,.,-,,i_.---",„,' - 4141114/111811011.0%:-,&-,-_—','' 2 .-,--s„,,,4,'''.'4..,.,!,..-;*'-:,-,.--'"--11.-.--4 4_---',,4"' 1 " ` -. y „� _ � "` '.?'f a,'r.., ."' ��r4 - .ems \ -_ -\\ „vAllit f N/A Stationing: Location: 3001 West 3rd Place Description of Work: Existing site conditions after the Clear and Grade Permit Bid Item Work: N/A Photo taken by: Steven Lange (Engineering Tech IV) Page 3 of 6 R:\Proc-CFP-Dev-Lange\Corr\3001 West 3rd Place\10-24-18 Project Photos.doc Date: Wednesday, October 24, 2018 Project Photographs — 3001 West 3rd Place Site Photos for Applicability Requirements • f.r Stationing: N/A Location: 3001 West 3rd Place Description of Work: Existing site conditions after the Clear and Grade Permit Bid Item Work: N/A Photo taken by: Steven Lange (Engineering Tech IV) Page 4 of 6 R:\Proc-CFP-Dev-Lange\Corr\3001 West 3rd Place\10-24-18 Project Photos.doc Date: Wednesday, October 24, 2018 Project Photographs — 3001 West 3rd Place Site Photos for Applicability Requirements _\ `a b _ -. Stationing: N/A Location: 3001 West 3rd Place Description of Work: Existing site conditions after the Clear and Grade Permit Bid Item Work: N/A Photo taken by: Steven Lange (Engineering Tech IV) Page 5 of 6 R:\Proc-CFP-Dev-Lange\Corr\3001 West 3rd Place\10-24-18 Project Photos.doc Date: Wednesday, October 24, 2018 Project Photographs — 3001 West 3rd Place Site Photos for Applicability Requirements 'VA% u �, �,` • • ram/• : "' • - •ramr • 7. « N ' f I c, ji1 At >,�i jj 4 .. �• (` ` 4'^' - . " , . -'".2 .‘ ;-"taftilitY, 7."P e:,,*it:::*:-. ... '',..., 4 '' :t,toi - '-. - - - i. . = <4^ 1, ,. Tt�� �'a ..1s , yiy, 9 ergs 1 - F 4 , `.- ..E4 t r Via. 41 r T .F , .• `"'pA , i ` , ice.. y^ r ...r, :itt f� /' e , Stationing: N/A Location: 3001 West 3rd Place Description of Work: Existing site conditions after the Clear and Grade Permit. There is a conveyance swale to the right side of the boulders with an inlet pipe in the bushes. Bid Item Work: N/A Photo taken by: Steven Lange (Engineering Tech IV) Page 6 of 6 R:\Proc-CFP-Dev-Lange\Corr\3001 West 3rd Place\10-24-18 Project Photos.doc ANACORTES PUBLIC WORKS DEPARTMENT oti Y °� Steven Lange, Project Manager P.O. BOX 547,ANACORTES,WA 98221 PH(360)293-1920 ¢, W E-MAIL:stevel@cityofanacortes.org FAX(360)293-1938 `9C'og' Memo Date: October 29, 2018 To: Kait Nelson, Plann r - From: Steven Lange Subject: PW's Review for 3001 West ad Street cc: Don Measamer, Libby Grage, Justin Symonds The Public Works Engineering Department completed a review of the submitted documents related to the 3001 West 3rd Street on Monday, October 29, 2018. Below are the findings and recommendations: Frontage Improvements: • The project is not required to construct any frontage improvements along the West 3rd Street Frontage. • The Driveway Approach will need to be reconstructed to meet the current City of Anacortes Standards for ADA compliance. See attached WSDOT Standard Details and City of Anacortes Development Standards, Chapter 3— Streets, Section STR-28— Property Access. • The current driveway configuration will not an Encroachment Agreement. Although, the driveway configuration may change in the future when Erie Avenue is extended to the south in the future for access to 3007 Erie Avenue. Storm Drainage Review: • The document is missing as part of the information routed for review. Not located within the Building Department file. • The Drainage Analysis (Minimum Requirements 1 to 9) will need to be performed by a licensed Professional Engineer within the State of Washington. a 14(dF < • Water • Wastewater • Streets • Storm Drainage • Engineering • Solid Waste • Transportation•Equipment • Capital Projects • Development Services 4 1lll�t'1 �' s�1aSt /, / ` �� M�1{� a123� � `/ �%j aNa�s laa __- ___ J/ f; 2C'1 S ye 09a/13N4D oo -10 1�1 hdd o ` � 'f `" t�s sas) SdIS �15 �133 1' / fry N r_ as +y°►5 wool"' iya ��� if /�� S�N�� p0 � M � y�1d�QLi�N� rr'rn yvaw rss / µatt "ws y33Nt `' Trr�arv 'fr 7r-ecr-v 53�10 tyQ�a`J �,+dM' `lyt]dot �,� Xvi l yptl.'S'a boa a ct }D;ascot a3� , °yaS � � l rNLS1Lorti N�� awl aa5 1� d1Ntl� hdM '1�3a ^_ i a p tNt} 8J£ Nou aQ t 009 N 1'� -' .f ral» " 0 a KVH S �ca�) �N1° 0 •••7 N N is d� _. ._ eu) .15314� d ,' • � alivo���ars �j5 s w t dam) aNt�l _ _. - tlii • e 4,'Og"� fZr ��. ra414/41.6 ieir j at 3N da 1- t S � �3aauso� sas) ' alma Alf 'n ou tttall PuO a jr, ,•44 '� s) , ' �`��ao � ri.� ' dhl' olid �.,�, a�n�u, you `�oA t'ks!'• �6 d a 1 ��ul u�,,' e°B W 1 ; �s• fi ' Np� 5�f U.Vd yrldM�a1� ., �Ka9z v g oz•gun z - r, 3, d O� yas praALlp a l5 u a° eL uuCt3 s5'. # °ate � Np° iN S a 3] al�N Ae a .,,,,„' p' s 1ue1 1 s but gt n° a ff �� �0l ��,� �, ' s�asa g1@A y °ue15LP teluazts° woy4ea u ► � xe`� 1aa�s5a1 nj �1�arl� 3•-5 Nvt 0 Sys i 8 y a dusk s, duu aw) u1 ,flour tit .S � s ° dMa�°� �1©11 �, ova ss a�iti at y ocP a dot .oLLa srtsa ou$ $' apad aays n� al t tgil) „ y to Sip* ssa * t xa °1 D`s G Lu°s� a uL U �uB�l usts au- a� s P t "., ( 0 lyot� 'Watt ' xePts ba d loestu°� st toot d uaa aQ Mary > a a�sd ,vast ,s Py r 81 x�°Md +a so au1 011.2ueuM Ks....--,o}tubas 14u astplz °ram au , �„ a ' 91.a£'a r� a15Nyd�° ► - K—� '�1 *1,a1s y , �� �0ss $ a utAtddQ xa o1 p ns lug ?S sau14 s° a�►) ylalac ; .. aaa° .. . �� f syyyy°a oats` 4 y y9 ' ald a % 5t , aLSno and �' ...��� �_ �y ua Is o oN y,IpN'w� d �s. _...�� laaa etas sue` ' a pe11 suo�an d —•, ' ' 4Viiisva `° c, t °3°asp ��yyd� des .0'4 act 11 sole atA } uan uL iota* CuL°el adg \ 3O * O- `aNa3 ' t 613- y ?�� 3 ��' 2t�sd oN t�a'��lo d�K�to MOW au1 ° ' •sa°us11uua1°Uat 5astt 'aus u sad, �s►� d �F �a���4 is saNass) x. 1N y-tda��flN a1 tN►19t£ ) �XoQ aeput S gssa11n`� e saS �� 3aa � �° satVA ay 3 N Ntbs Nots aN s d ela p aas y,epuel5 aAtaR t *33 .vN at sot LIS .. (du) ,b ats r t r+tz 3 sab Zb' �d �asluo� $u1' L,a j uatd p f, lrn f9 �y4N 83 t� �� • a111 sot gits°. a-t aa°xe 5. au,1 ►11 �` 3 . /. sLle18P xt (11j �£ s se auLisal� S aa ) 11A {y'a�ta L asL� uaisuet., r ors tt`a dN1� �dM���a � � 0 \ z �.tdhy) 'cl tf61) 7i4 s wnwwa j9n '� �u ot-ay;°�uta� e uttM �tno �4ya fie�aAtsp , vi yg but°� d edX uta� L 7 %7 uau 5�,staL, uol. au°tL salttl aa°xa �1ptu� s o ! ii/ Nf' °t aut etLnc, jerr. p uoa '�n 4 tino 4� r ,% \4" \aaa31 `� \ dttl�to9 3.39 • tilde* LLnl of lsu t� 13-C* 111330 N��so 'i` . j l7 1 �� Ion 00 e/Pea a LLOttatr ek)•,}h . Stela agV Sks ° a°1 Z3dj`1 �srx asu°sra+fld°� ��tt� d �ladaividil - _a�b-la cam 2j It dyt tgdl) y ,t) ustd / , \- OL'� tl�5 a5 Y t}+111 5{£ ; � � ' . , ,,,, gala '' is �' �35) r 'tl `rr%%'!�A i330�� t3 cdu) „d�� ,,t�i ; ! ;',f '' �, li� N° ls �°��at / °N� �\ ' f ' / ; 1 _" 4'rn a �ysya o '' �a�5sus �" •___ ty s„1- 535) / ;' •++t'"r 1dMa18 •�Nad��oa dS N�tls n) �:b, C' X Qt iN t {�� yd33 �\ i1� � 9S)5•at`ddn �,/ �t{2tL 4.•' %S.` ‘‘-‘ -';‘ • :`'s*NZ.'1.-:"C ‘ t.k." .:k: Nnc,.‘,,,,,;,. . -Alin % * 4‘‘-, 4/ Ears) 01.3 nv . `:mot ,`��\` / � `„V ,. , • \ y ` lbw 511 liotos ti n�::a• ,.�' 1 O M °l t ate! vls►N 1 J' � p S) 5 BROOMED VARIES { 3/8"(IN)EXPANSION JOINT(TYP)- I 1 FINISH(TYP.) (SEE CONTRACT PLANS) I c SEE STANDARD PLAN F-30.10 I 1 - t�Y: _ CEMENT ' o \ ��, • r/ MATCH SIDEWALK WIDTH CONCRETE \\��\�\\� I (SEE CONTRACT) TK ly ,Y\MATCH SIDEWALK WIDTH *i 1 _ j �\ 5'• ` � (SEE CONTRACT) " 1 6'-0" I VARIES 6'-0" ' �, \ %+I i i (SEE CONTRACT) Z �• . r% 3/8"(IN)EXPANSION JOINT(TYP.)- I / t I \\�"' r / ( \ GROOMED L V, L SEE STANDARD PLAN F-30.10 > >� �\\\ ad �, / I /1Op 1 \ ., C ‘ k \ 1 / ,y (SEE NOTE 1) CEMENT CONCRETE DRIVEWAY ENTRANCE\ (SEE NOTE 1)- CEMENT CONCRETE\ F CURB AND GUTTER BUFFER STRIP(TYP.) — �1 i (TYP.) {TYP) CURB AND GUTTER SIDE SLOPE(TYP.) (SEE NOTE 3) 1 I (SEE NOTE 3) • PLAN VIEW PLAN VIEW w DRIVEWAY ENTRANCE g TYPE 3 SIDE SLOPE(TYP.) TYPE 4* CC 1 THIS ENTRANCE TYPE SHALL NOT BE USED ALONG A PEDESTRIAN ROUTE LL co co g MATCH SIDEWALK WIDTH (SEE CONTRACT) 1 (SEE CONTRACT) p 1/2"(IN)R (TYP.) (SEE CONTRACT) DRIVEWAY i a 112"(IN)LIP BETWEEN ROADWAY 1/2" IN R.(TYP.} I a `O_{ GUTTER1/2"(IN) BETWEEN CURB(OR SEE ROADWAY (SEE NOTE 7) io I l GUTTER AND CURB(OR SEE ( ) I I.. CONTRACT) . `° \ CONTRACT) SIDEWALK -- I DRIVEWAY _l I 111 DRIVEWAY CU DEPRESSED (SEE NOTE 7) DRIVEWAY J� DEPRESSED F-30.3/8"(IN)EXPANSION JOINT( - � RAMP RAMP SECTION 0 CURB AND GUTTER SEE STANDARD PLAN F-30.10 CURB AND GUTTER (SEE NOTE 3) (SEE NOTE 3) SECTION O GATT 2 510 wAsyiit llcn •� "CEMENT CONCRETE DRIVEWAY , ENTRANCE TYPE 3"PAY LIMIT + "CEMENT CONCRETE DRIVEWAY ^'% `inn' 4• 4 DRIVEWAY r�: Ilk i ENTRANCE TYPE 4"PAY LIMIT,l 0,0 �A�I S f 0 400 1�� (SEE NOTE 7) % y G IONAL CL.4000 CONCRETE -- PER STANDARD SPEC.8.06.3 {SEE NOTE 7) ilcr,Scott ig%,� Jul IS20167.07AM 3` CEMENT CONCRETE CL 4000 CONCRETE DRIVEWAY ENTRANCE / - -- ---J PER STANDARD SPEC.8-06.3 TYPES 1, 21 3, & 4 —~_~ i, STANDARD PLAN F-80.'10-04 /• / SHEET 2 OF 2 SHEETS (c. APPROVED FOR PUBLICATION ~�-~ i'l u �dz�fteo r?PIL, �e�� lout 82LICA016 T2 N �'; / ISOMETRIC VIEW ISOMETRIC VIEW c..g. ��PE 3^•PAY LIMITS TYPE 4^•PAY LIMITS _ STATE DESIGN ENGINEER WIWashington Slate Department of Transporlalfon (3) STREET STANDARDS JULY 2011 1. Cold mix asphalt is used as the temporary asphalt surface layer. 2. A Performance Bond is provided to the City of Anacortes that is the cost of repair(See AMC 12.08) x 150%. 3. The Contractor is responsible for all maintenance and repair during this period. STR-27 CITY-OWNED UNDERGROUND CONDUIT AND VAULT REQUIREMENTS The contactor must obtain a Right-of-Way Permit to install underground conduit in the right-of-way. See AMC Chapter 12.08—Street Excavation Permit Requirement Install 18-30 inches deep within'and parallel to the right-of-way. 4-inch diameter solid wall polyvinyl chloride (PVC) pipe conduit conforming to ASTM D 3034 SDR 35. Installation under roads and high-traffic locations, i.e., parking lots, require Schedule 80 PVC pipe. Maximum 500 feet long conduit between junction boxes/vaults. Joints must conform to ASTM D 3212 using elastomeric gaskets conforming to ASTM F 477. Conduit ends terminate at Type II junction boxes conforming to WSDOT Standard Plans J-11a. or other approved underground vault equivalent to 466-TA Splicing Vault (Utility Vault Co. (800) 839-3500) with inside dimensions of 3'-5"W X 5'-5"L X 5'-13f"D. The contractor must submit conduit and vault as-built drawings showing the right-of-way and property corners, offset dimensions, depth of installation, conduit diameter, and size and type of junction box/vault. Mark conduit with detectable orange colored marking tape or wire prominently labeled "Caution Telephone CATV." STR-28 PROPERTY ACCESS STR-28.1 Driveways Driveway Standards Measured Curb to C Minimum to Property Line 8 feet ) ' Minimum Between Driveways Set Minimum Tangent Curb Length to 50 feet Intersection (20 `Maximum Width at Street feet 30 feet Residential **Commercial <_ 2550feett s 125 feet Right Turn Only at Signalized Intersections Arterials Collectors Right-In-Right-Out Only When Safety Warrants * Driveway cuts in sidewalk required ** Unless topography or traffic volumes require wider. • CHAPTER 3 STR-15 Appendix I-G: Glossary and Notations https://fortress.wa.gov/ecy/madcap/wq/2014SW 1VIWWinteractiv... Impact basin Impervious A surface which cannot be easily penetrated. For instance, rain does not readily penetrate paved surfaces. Impervious surface A non-vegetated surface area which either prevents or retards the entry of water into the soil mantle as under natural conditions prior to development. A non-vegetated surface area which causes water to run off the surface in greater quantities or at an increased rate of flow from the flow present under natural conditions prior to development. Common impervious surfaces include, but are not limited to, roof tops, walkways, patios, driveways, parking lots or storage areas, concrete or asphalt paving, gravel roads, packed earthen materials, and oiled, macadam or other surfaces which similarly impede the natural infiltration of stormwater. Open, uncovered retention/detention facilities shall not be considered as impervious surfaces for the purposes of determining whether the thresholds for application of minimum requirements are exceeded. Open, uncovered retention/detention facilities shall be considered impervious surfaces for purposes of runoff modeling. Impoundment Improvement Industrial activities Infiltration Infiltration facility (or system) Infiltration rate Ingress/egress Inlet Insecticide Interception (Hydraulics) Interflow Intermittent stream Invasive weedy plant species Invert Invert elevation Isopluvial map 10 of 19 11/9/2018 :01 PM Start Here PA6E. i c Z *sip is i2L Does the site have 35% Yes See Redevelopment Minimum or more of existing ► Requirements and Flow Chart impervious coverage? (Figure 1-2.4.2). No Does the project convert 3/4 acres or more of vegetation to Does the project result in lawn or landscaped areas, or 5,000 square feet, or No convert 2.5 acres or more of greater, of new plus ► native vegetation to pasture? replaced hard surface area? \No Yes Yes Does the project result in 2,000 square feet, or greater, of new plus All Minimum Requirements replaced hard surface area? apply to the new and replaced hard surfaces and converted vegetation areas. Yes No Does the project have land Minimum Requirements #1 disturbing activities of 7,000 through #5 apply to the new ' YeS square feet or greater? and replaced hard surfaces and the land disturbed. No V Minimum Requirement#2 applies. ftallE31111 Figure 1-2.4. 1 Flow Chart for Determining Requirements for New Development DEPARTMENT OF Revised June2015 ECOLOGY Please see http://www.ecy.wa.govicopyrighthtml for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. eie 2oFZ sue. Does the project result in 2,000 square feet, or more, of new plus replaced hard surface area? OR Does the land disturbing activity total 7,000 square feet or greater? Yes No Minimum Requirements #1 through #5 apply to the new and replaced hard Minimum Requirement #2 applies. surfaces and the land disturbed. Next Question 3c 1 tiles' 3 - RcE. ?tGE 2d ' 2 Does the project add 5,000 square feet or more of new hard surfaces? OR Convert 3/4 acres or more of vegetation to lawn or landscaped areas? OR Convert 2.5 acres or more of native vegetation to pasture? Yes No All Minimum Requirements apply Next Question Is this a road to the new hard surfaces and the ► converted vegetation areas. related project? No Yes Does the project add 5,000 square feet or more of new hard surfaces? Yes No Is the total of new plus replaced hard surfaces Do the new hard T 5,000 square feet or more, surfaces add 50% or No No additional No AND more to the existing does the value of the proposed improvements hard surfaces within requirements. - including interior improvements - exceed the project limits? 50% of the assessed value (or replacement value) of the existing site improvements? Yes All Minimum Requirements apply to the new and replaced hard surfaces and converted vegetation areas. Yes 111■2111131111 Figure 1-2.4.2 Flow Chart for Determining Requirements for Redevelopment DEPARTMENT OF Revised June 2015 ECOLOGY Please see http://www.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. 1 ' ' t 0 g i MZ'A 2 . Nov 13 2018 LamE -' oak CITY OF a��c�c �-�a t NARRATIVE FOR COMPLIANCE WITH SWPP ELEMENTS 1-5 1.FOR THE CONSTRUCTION OF THE PROPERTY Al 3001`,N.THIRD STREET The new site plan which is attached has been revised to show that the construction plan for 3001 W.Third has a maximum IMPERVIOUS SURFACE of 4831.SQ. ' and fails within the minimum requirements for a SWA/PP plan. Below discribes the changes which comply with elements 1 through 5 as set forth in 2014 SWMM for Western Washington,Volume 1,Chapter 2, page 43-46. Element 1: Clearing limits have been marked with a silt fence installed prior to receiving the permit for clearing,grading and demolition of oucropping of rock necessary for construction and the little native top soil has been left undisturbed accross the front 20 feet of the property; Element 2: Limited construction and vehicular access has been roughed-in in accordance with the grading and clearing permit; Element 3 and 4: A silt fence has been installed on the north,east and west boundaries of the property to prevent erosion and stormwater runoff. Approximately 80%of the property is impervious rock and contains little or no silt. Element 5:The approximate 20%of the area on the property which contains soil has been contained with either grass on the east side of the property, rock and an imbankment on the west side of the property and a silt fence and gentle slope on the north side of the property. ADDITIONAL CHANGES TO THE PLAN TO COMPLY WITH STORMWATER POLLUTION PREVENTION: The aforesaid silt fence;the drive has been sloped 1 degree toward Erie Street so that the water runoff with penetrate the soii burm with will be grassed on completion in order to filter out the polutants and there will be installed a drain pipe in the northern 25 feet of the drive to the east to catch the drive runoff which has been filtered through the soil and grass burm to the NE; this drain pipe will tie in to the tight line from the gutters which leads to the street drain. 1 Lange, Steve From: Lange, Steve Sent: Monday, November 19, 2018 8:23 PM To: 'Bob Taylerson' Cc: Nelson, Kait; Cricchio, Kevin Subject: Storm Drainage Review - 3001 West 3rd Place Good evening, Bob. This email is to let you know that we have not achieved success on the Minimum Requirement#1 through#5. I have been working diligently to complete a worksheet outline that follows the Ecology Manual. I will be forwarding this to you,via Kait Nelson when it is complete. I will fill in the information that you have provided so you can see what needs to be provided. I do apologize for the week that it has taken me to get to the resubmittal. I have been working on other tasks assigned by management that has taken quite a bit of my time. I will have Kait contact you when I get done tomorrow. Also, I am going to be reviewing the Grade and Fill Permit to see what type of Drainage Report was submitted with that permit. We may be able to use that information as well. Kevin, Do you have the Grade and Fill Permit file readily available for review of the Drainage Report that was submitted for this permit? Thank you again for your patience. Steven Lange Project Manager 1 _ — 3001 W 3RD PL. 8MP C105: CONSTRUCTION ENTRANCE PROVIDE 12' WIDE X 2e' LONG (MIN.) S p`�G�� I ANACORTES, WASHINGTON CONSTRUCTION ACCESS WI CRUSHED (E)WATER METER in • ROCK SASE ca PAVED DRIVEWAY (E)WATE LINE , VII o LOCATION - - - -� - - - - - - - - ei c� `.TIGHTLINE DRAINAGE FROM W 6IillE F':1; 1:1_ 11 V ..'7 • "0 0, ELECTRIC/GAS �/ SWALE TO S.D. TIGHTLINE Q u1 . rn .. STUB-INS ---- .� 3 I v EXIST. CATG. BASIN NOVn � 2018 NO 21 EXIST. G B NOV •� Q NEAREST FIRE HYDRANT 1 s ,4 (122 - .05 . 3RD PLACE 1200000.441 �fl l( OF ANA(„�� *Os L, z PSI)APPROX. I@@ TO NORTHWEST 5' 3.' I 54' 20 9" `� o (ACROSS WEST 3RD PLACE TO O / I W Z THE WEST) __ ` 1-r� Z_. -\ ...jCovt~�.c"��� , E =T. S1D •-ALK �I (E)CURB CUT 1r/�' �_`~ ,�~ —_ — (eE)S.D..- lmr� / _Q1-- ,-r i 1 (/„ S�� 14 ---�_ y r �`� I J �_ `�,� ,'EASEM N NE- _ - _; \ �'► ��_ a w o� _ , — _ .«�—A —_— ? ?T ). 30 tat 'k __ _- z -- ' csi � i" . 0 - `� ° / ` \ m� - \ SLOPE DRIVWAY 1% 3`.t p ~~�D97`' . 1 20' F' T 85BL SLOPE 15%� - `e � \1 FOR WATER RUNOFF3' 9 o �- \ _� --- �� d --- SWALE CAziV 10e � 11�i-1> ' 21 ) 8MP C233, ` = w U SILT-FENCE- �� N. ;�; �__-- ' H Q 1jr \=-� / / : PAVED DIVEWA/ - 1"~ O BMP C14: DESIGNATED � / // / 14e'CONCRETE WASHOUT `�A i lc- // / 5 �ul�G"1.1lk� z W NO NO ,; w - AREA 1n\ vI I 1 I II i,' \ l/------ / 25 ti BERM `n �r ` T�� 1 �{ j U _1 1' N �i N O 0 A `. l~ —_ ..-.1il: ILL L-�G- � Gv�N �1�`-'7m' < o 0` o o MoVIOE. STZ1P 2.w1,.s 21 n `\, \ ��PR OSE °•j: a.l- vT w m Q K) Q .4 a 41> z �i �._\ IaE,SIDEIV .F � . Z2.01- )S it OlC-W C ' STia• s IQ � O c, o W 61- o #• 0 15e'----- @ JF -- �.�® ,, . ,, ____- �t4P� 06 - , -tom.) (Y m -_J I I \ --s--- -_— . o W o Q o W --------- 4) y�_ J - W U V U -� -- - •=� � � -- SILT FENCE z Q Q ' = < x CiI.J0Z(F a..tau� - -_ ----------- �_ -1 _ 1 --r--,� • _ ; a. / \ W h1»l�u� '10 pit 1'v-! --_.—_-- �� `\ ft� \i 4 .� / \ -- — T O Cif R ` , � c -3 vsol ' To yu-A.,,1 t 5�t•f S� SILT FENCE �_=A F 1=fl\ r P.4R ' ° :~ ,_ --- --_�-� ,�� V�A•< AVA- A-GCC'c7515lU ' -� ��� t� \ I ------..\_,\� - , - N • I �sQG�2s1 . Cc , Qom .IL. vIt -� � i SJLSr Af't.S 1 � >' I I // �_ s \,Re•4R -BL` 1 --, �15e' �� N 5�lwr -ts+`c Tom?= -- — .. _ _ ' , ti� .�1 �'�`e r�5 Fv l � � , ��Au,o Z t II , J_- - -----6MPCH100N5TRUC111{ \. ROAD/PARKING AREA SITE PLAN LEGEND 1 BMP G123 TEMPORARY 501E � - _ J _ _ - ---- y, --f J/I \ \ \ L...± PAVED SURFACE o • STOCKPILE LOCATION: COVER UJI PL: 13.58' N 6 1°43'0 '�E ? I STRAUJ OR VISQUEEN SILT FENCE i 14, N \\� '��_ ,,,•-,.,,,y:;•-, EEAROUND DOWN SLOPE SIDES) 1// \ \ ----`__— - µ? ,,„,M1. J GRAVEL SURFACE wlie' �- � \ \ \1 \, l RETAINING WALL 1 I— 7. 4T STREE ROW �_ AS NEEDED _ _ PROPERTY LINE 0 ^ � / /5'-� 54'=-0" y1 �\\ 2@'-9' I _ - - - - - — BUILDING SETBACK \ \ -��— ---_�� LINE OF BLDG. FTPRT. Il e' 0' 16@' ------ LINE OF ROOF DRAWN BY JAD SCALE I" = 20' REVISED 11/09/18 (—AL- h SITE PLAIlI — UTILITY LINE DATE 08/21/2018 //I SCALE: I° - 20'-0" x SILT FENCE 1 ''=" 3 . .:.---- ,A-02232 ,. th,,,, . / / :-"Affm‘s., , j________---- MK ; -..--- ----*<---'\ ----- N ' INV isr • • 4.--- .0,v , e,,7----,_ -,..e. ji X It V-3247 8 5 I V . 2 . : ' • t` .- .i = le . (L N Ai \61 ,,•••.' ....0....• 4 i.:-..' . 4 ----: "51,11.____,-.: . 1 6 kC #C3 / w Eeggv OIL Sc\ �� M 6, rO v �'J a y N if , � 18 P58 � -o �1 11 AI n \ c� e 3007\ 0 \ \ \ fl s3 \ . 1. . .....\ A. \ ' N - U4 - 20 . . -5 ,,,,,\ ----- -- ' \ I NV . 5 . 05 i. NC, CJ) Q. Ali ..... .c> . . w . 41\S;:Ct° S IN n C) Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street Anacortes,WA 98221 �,(L 1891 p: 360-299-1983 �` stevel@citvofanacortes.org I www.anacorteswa.gov 111N0 11.27.VE3 Project Address: 3001 West 3rd Place Submittal Date: 11-13-2018 Parcel Number: P58429 Revision Number: 2- Permit Number: BLD-2018-0588 Acceptance Date (COA): Reviewer: Steven Lange FRONT OF REPORT Submittal Checklist: o TAB#1 through #5 - Drainage Analysis—Minimum Requirement#1 to#5 o APPENDIX 1 Soils Analysis (Volume 1, Chapter 3.1.1) o APPENDIX 2 -Survey performed by a Professional Land Surveyor o APPENDIX 3 - Determining Construction Site Sediment Damage Potential (Appendix 7) o APPENDIX 4-Site Plan with all applicable information (Minimum Size 11x17—30 scale) o APPENDIX 5 -Applicability Requirements(Figure 1-2.4.1, Figure 1-2.4.2 and Figure I-2.5.1) o APPENDIX 6- Documented Site Photos(North,South, East and West) o APPENDIX 7 Drainage BMP Maintenance Covenant Project Description: (What is it you are looking to do?) Construct a 2,461 SF residential home on an 8,800 SF lot. The impervious area,which includes all new hard and replaced surfaces is 5,329 SF. Existing Site Conditions Summary: (Additionally, provide information on previous permits, if any, like Grade and Fill, Clear and Grade) The site is unimproved with no existing structures. The site is solid rock with the north downslope having topsoil placed during the construction of West 3rd Place. The site grade slopes from south to north with an approximate 27 percent grade. Minimal to no vegetation existed with the exception of scrub brush that has grown on the site over the years after being cleared in approximately 1999. In 2018 a Grade and Fill Permit was issued, by the City of Anacortes Planning Department to chisel rock to make room for the home foundation. The project provided a Construction Storm Water Prevention Plan during that time. Provide the Infiltration Rates found during the rainy season: N/A Inch\Per Hour Site is solid rock What was the depth of the ground water table? N/A Feet and Inches below existing grade (See completed Soils Analysis (Volume 1, Chapter 3.1.1) Site is solid rock Y i0► C) ,,> Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6' Street Anacortes,WA 98221 1891 p: 360 299 1983 stevc a,citti ofanacortes.org I www.anacorteswa.gov Site Sediment Transport Score: 75 Total Points (High\Low) (See Determining Construction Site Sediment Damage Potential(Appendix 7) The site was cleared under a Grade and Fill Permit in 2018. The project was not required to complete the above reference determination at that time. Since the issuance of the permit, the site has been manipulated and is currently solid rock. The area of sediment transport is at the north end of the property where there will be minimal activity. The project has an approximate slope of 27%, greater than the 25% identified and is upstream of a Marine near-shore Habitat. Drainage Basin (2007 Storm Comp Plan—City website\publicworks\engineering\comprehensive plans): What Drainage Basin are you in? G9 Identify any downstream drainage issues (Storm Comp Plan: Identified, but corrected If so, describe: Area #14 identifies the concrete outfall pipe is crushed. When Strandberg Constructed developed Dakota Avenue, they fixed the downstream issue and installed a Contech Stormwater Quality Vault. Complete the Applicability Requirements— Flow Chart (Figure I-2.4.1, Figure 1-2.4.2 and Figure 1-2.5.1)) - Highlight the path and attach Done. See attached. DOE Stormwater Management Manual Minimum Requirements: (MR#1 to MR#5 only). Refer to the 2012 Department of Ecology Manual, as amended in 2014 for further required information. C.) 90e> Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6t'' Street Anacortes,WA 98221 �, . 1891 p: 360-299-1983 1C 0 V stevel@citvofanacottes.org 1 \v\vW.anacorteswa.gov TAB 1 (MINIMUM REQUIREMENT #1) e 1-2.5.1 Minimum Requirement#1—Prepare a Stormwater Site Plan - 1.3— Preparation of a Stormwater Site Plan - 1.3.1—Stormwater Site Plans: Step-by-Step Note: The level of detail needed for each step depends upon the project size. Provide a narrative description of each step. 1-3.1.1 Step 1 -Site Analysis: Collect and Analyze Information on Existing Conditions Site analysis shall be submitted as part of the Existing Conditions Summary above. Part of the information in this step should be used to help prepare the Construction Stormwater Pollution Prevention Plan. Purpose of the Site Analysis is to provide for a Low Impact Development site design that is intended to compliment the predeveloped conditions of the site. The site is unimproved with no existing structures. The site is solid rock with the north downslope having topsoil placed during the construction of West 3rd Place. The site grade slopes from south to north with an approximate 27 percent grade. Minimal to no vegetation existed with the exception of scrub brush that has grown on the site over the years after being cleared in approximately 1999. In 2018 a Grade and Fill Permit was issued, by the City of Anacortes Planning Department to chisel rock to make room for the home foundation. The project provided a Construction Storm Water Prevention Plan during that time. 1-3.1.2 Step 2- Prepare Preliminary Development Layout Based upon the analysis of existing site conditions, locate the buildings, roads, parking lots, landscaping features, on-site stormwater management BMP's, and preliminary location of stormwater treatment and retention/detention facilities for the proposed development. Due to the steep slope of the lot and being solid rock, the house was designed to allow minimal disturbance as possible. The site was previously denuded in 1999. The project will utilize a portion of Erie Avenue for driveway purposes to minimize the cut and fill of the driveway to allow for access to the garage. C.) Minimum Requirements #1 to #5 '' f - ENGINEERING DEPARTMENT Steve Lange,Project Manager 904 6th Street Anacortes,WA 98221 1891 4,f) p: 360-299-1983 stevel@cityofanacortcs.org citvofanacortcs.org I www.anacorteswa.gov 1-3.1.3 Step 3- Perform Off-site Analysis (at Local Agency's Option): Use additional Sheets, if necessary, Ecology recommends that local governments require an off-site analysis for projects that add 5,000 SF or more of new hard surfaces, or convert%acres of vegetation to lawn or landscape areas, or convert 2.5 acres of forested area to pasture. This project is within the G9 Drainage Basin as identified in the City of Anacortes 2007 Storm Water Comprehensive Plan. The current plan identifies an issue at the outfall, but was corrected from a recent Rawhouser Short Plat in 2007. This outfall was upsized for the future development of the Highlands Subdivision as well. The project will add 5,329 SF of new hard surface to the project. The downstream conveyance to this site is both piped and swales to the Guemes Channel. From the project site, there is a 12-inch Storm Drainage System for approximately 650 LF to the intersection of Oakes Avenue and Erie Avenue, the conveyance system then heads east along Oakes Avenue in a 10-inch Storm System for approximately 45 LF to an open conveyance swale for approximately 289 LF to Dakota Avenue. At Dakota Avenue, there is an 18-inch Storm Drainage System for approximately 700 LF to a Vortech Storm Water Vault before entering the Guemes Channel. 1-3.1.4 -Determine Applicable Minimum Requirements Establish project size thresholds for the application of Minimum Requirements to new development and redevelopment projects. Figures 2.4.1 and 2.4.2 provide the same thresholds in a flow chart format. Based on the preliminary layout,determine whether Minimum Requirements#1 through#5 apply to the project; or,whether Minimum Requirements#1 through#9 apply. Please note,that Minimum Requirement#1 through#5 may trigger additional Minimum Requirements, such as Flow Control. Both Flow Charts were completed since the site is solid rock and has 35% or more of existing impervious coverage. Based on the flow charts, Minimum Requirements 1 through 5 is required. Additionally, Flow Chart (I-2.5.1)was completed and it was determined that the project is not able to achieve LID requirements under MR#5 due to being solid rock. See attached. Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6`' Street Anacortes,WA 98221 -\.4, 1891 p: 360-299-1983 ` stevel ilcitvofanacortes.org I www.anacortes\va.gov 1-3.1.5 Step 5- Prepare a Permanent Stormwater Control Plan (Refer to this section of the Ecology Manual for requirements.) Project Minimum Requirements are#1 through #5. Based on the existing site conditions, the project will try to utilize: A) Lawn and Landscape: BMP T5.13 Post-Construction Soil Quality and Depth B) Roofs: BMP T5.10C Perforated Stub-out Connections. C) Other Hard Surfaces: BMP T7.30 Bioretention Swales with Underdrain, BMP T5.12 Sheet Flow Dispersion and possibly BMP T5.11 Concentrated Flow Dispersion. All maintenance and specifications will be included in the report. 1-3.1.6 Step 6- Prepare a Construction Stormwater Pollution Prevention Plan (MR#2—13 Elements) Refer to Chapter 11-3—Planning for a detailed description of each element.See also attached Tables 4.1.1 (Source Control BMP's by SWPPP Element)and Table 4.2.1 (Runoff Conveyance and Treatment BMP's by SWPPP Element). See attached 13 Elements of a SWPPP, please complete and attached A Construction Storm Water Plan (MR#2) was completed for the Grade and Fill Permit that was issued in 2018, accepted by Kait Nelson in the Planning Department. This same Plan is submitted with this project since all BMP's under this plan are still in place and in are in working order. Prior to construction, the construction entrance will need to be resurfaced. 1-3.1.7 Step 7- Complete the stormwater site plan The Stormwater Site Plan encompasses the entire submittal to the Local Agency with drainage review authority. Refer to this section of the Manual for further clarification of each item and what is required. See below: • Project Overview- Done • Existing Conditions Summary- Done • Off-site Analysis Report- Done • Permanent Stormwater Control Plan - Done • Construction Stormwater Pollution Prevention Plan - Done • Special Reports and Studies— N/A Y 0 t Minimum Requirements #1 o #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street Anacortes,WA 98221 , , 1891 p: 360-299-198.3 c0 in stevcl a citv'ofanacortes.org W1uW.anacorteswa.gov • Other Permits(Not provided as part of this application. On file with the Planning Dept.) • Operation and Maintenance Manual— Done • Declaration of Covenant for Privately Maintained Flow Control and Treatment Facilities. (See attached Drainage BMP Maintenance Covenant BMP Agreement) N/A - No Flow Control or Treatment Facilities provided. • Declaration of Covenant for Privately Maintained On-site Stormwater BMP's(See attached Drainage BMP Maintenance Covenant BMP Agreement) N/A - No Flow Control or Treatment Facilities provided. • Bond Quantities Worksheet, if applicable N/A 1-3.1.8 Step 8- Check Compliance with all Applicable Minimum Requirements A Stormwater Site Plan as designed and implemented should specifically fulfill all Minimum Requirements applicable to the project.The Stormwater Site Plan should be reviewed to check that these requirements are satisfied. The grades at the discharge location of the property allow for a Perforated Pipe Connection. 8.r.V Y Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street Anacortes,WA 98221 1891 p: 360-299-1983 stevel@cityofanacortes.org I www.anacorteswa.gov TAB 2 (MINIMUM REQUIREMENT#2) • 1-2.5.2 Minimum Requirement#2—Construction Stormwater Pollution Prevention Plan (SWPP) - Refer to the 13 Elements of the SWPP (Separate Document, complete and attach) - See attached Table 4.1.1 and Table 4.2.1 Attached to this application is a SWPP that was accepted under the previous Grade and Fill Permit by the City of Anacortes Planning Department. This plan will be modified to meet the change in site conditions as construction moves forward. u 04. Planning, Community, & Economic Development Department PO Box 547, Anacortes, WA 98221 PH: 360.299.1984 7 $ 13 Elements of SWPPP (Construction Stormwater Pollution Prevention Plan) Please check off boxes to show that each element has been read and understood. Provide details where applicable and if certain aspects are unnecessary or exempt, clearly justify. Details of the 13 Elements and the correlating BMPs are listed on Pg. 236 of the 2014 Stormwater Management Manual for Western Washington(SWMMWW).A link is provided on the City of Anacortes website, under Planning, Community, & Economic Development Department, as well as under Stormwater on the Engineering Division of Public Work's page. Owner Name: /4 4/ e"-e-1 I-7 4 ,74-h.fd.--57--,PA-it.31 Site Address:.5/)PI # V7 3 /2 _ Prepared By: of 41/ "4-y.., 4 The Stormwater checklist or building permit determined that: ❑ The 13 elements must be addressed for ❑ These elements must be addressed for construction activity adding under 2,000 construction activity adding 2,000 sq.ft. sq.ft. of hard surface area. or more of hard surface area. This means that an attached narrative and site plan are required with this document. Under each element,explain the best management practices (BMPs) used or justify reasoning for those that will not be used. If needed, please attach a narrative to further explain plans or justification. ELEMENT 1: Preserve Vegetation/Mark Clearing Limits 0 Before beginning land disturbing activities, including clearing and grading, clearly mark all clearing limits, sensitive areas and their buffers, and trees that are to be preserved within the construction area. 0 Retain the duff layer, native top soil, and natural vegetation in an undisturbed state to the maximum degree practical. ere &eq.4on %if Vtr4 �s �a 7// Al ,d 'eve ft Page 1 of 8 March,2017 infiltration facility. Runoff from fully stabilized areas may be discharged without a sediment removal BMP, but must meet the flow control performance standard in Element#3, bullet#1. ❑ Locate BMPs intended to trap sediment on-site in a manner to avoid interference with the movement of juvenile salmonids attempting to enter off-channel areas or drainages. ❑ Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas to increase sediment removal,and maximize stormwater infiltration. ❑ Where feasible,design outlet structures that withdraw impounded stormwater from the surface ito avoid discharging sediment that is still suspended lower in the water column. d f) ar1`t f�11�@ 41.S /iicaieQhei) etti /9//ed/1� z> ifs 9 ve/ ,i/ ie 4 ��1'1 .•+ r�9/l� T 1rP� s7 e '/ , c_4 �r �®rc✓, pi";// .45e- /9,4-cid N4 .4094 ELEMENT 5: Stabilize Soils ❑ Stabilize exposed and unworked soils by application of effective BMPs that prevent erosion. Applicable BMPs include,but are not limited to:temporary and permanent seeding,sodding, mulching, plastic covering,erosion control fabrics and matting,soil application of polyacrylamide (PAM),the early application of gravel base early on areas to be paved,and dust control. ❑ Control stormwater volume and velocity within the site to minimize soil erosion. ❑ Control stormwater discharges, including both peak flow rates and total stormwater volume,to minimize erosion at outlets and to minimize downstream channel and stream bank erosion. ❑ Soils must not remain exposed and unworked for more than the time periods set forth below to prevent erosion. o During the dry season (May 1—Sept 30):7 days o During the wet season (Oct 1—Apr 30):2 days ❑ Stabilize soils at the end of the shift before a holiday or weekend if needed based on the weather forecast. ❑ Stabilize soil stockpiles from erosion, protect with sediment trapping measures,and where possible, be located away from storm drain inlets,waterways, and drainage channels. ❑ Minimize the amount of soil exposed during construction activity. ❑ Minimize the disturbance of steep slopes. ❑ Minimize soil compaction and, unless infeasible, preserve topsoil. r) Avy r's`/e kV,de- eo'Jfel file �c bejo,e_e .�-/✓,✓ 1/41./4- cot;//)g s cc race Ciedet, ovtJ,/� / /2- rewire A/4 e/1 '" // e0 .01 .4�� '/4,Le ,o /s �J-//` '., z 7 5) 'f/ �'r�e,p/` /®/ err.5.; / ?/.�/o,a .4 b ich i / iAT)`tl p l4-C e e4.04 c'e �-1- ccrt)dderr 6'8 pe i'2 1, sue. °� ItoPe ELE ENT 6: Protect Slopes y ❑ Design and construct cut-and-fill slopes in a manner to minimize erosion.Applicable practices include, but are not limited to, reducing continuous length of slope with terracing and diversions, reducing slope steepness,and roughening slope surfaces (Ex:track walking). Page 3 of 8 March, 2017 ELEMENT 8:Stabilize Channels and Outlets ❑ Design,construct, and stabilize all on-site conveyance channels to prevent erosion from the following expected peak flows: o *Channels must handle same peak volumetric flow rate as temporary pipe slope drains listed in Element 6,above. ❑ Provide stabilization,including armoring material,adequate to prevent erosion of outlets, adjacent streambanks,slopes,and downstream reaches at the outlets of all conveyance systems. ❑ The best method for stabilizing channels is to completely line the channel with a blanket product first,then add check dams as necessary to function as an anchor and to slow the flow of water. tj1 nO1 ) /VA — 4J°Ar 3/ il,4 ELEMENT 9: Control Pollutants rj ❑ Design, install, implement, and maintain effective pollution prevention measures to minimize the discharge of pollutants. 4 ❑ Handle and dispose of all pollutants, including waste materials and demolition debris that occur on-site in a manner that does not cause contamination of stormwater. .24 ❑ Provide cover, containment,and protection from vandalism for all chemicals, liquid products, petroleum products, and other materials that have the potential to pose a threat to human health or the environment.On-site fueling tanks must include secondary containment. Secondary containment means placing tanks or containers within an impervious structure capable of containing 110%of the volume contained in the largest tank within the containment structure. Double-walled tanks do not require additional secondary containment. yi ❑ Conduct maintenance,fueling, and repair of heavy equipment and vehicles using spill prevention and control measures.Clean contaminated surfaces immediately following any spill incident. 61 ❑ Discharge wheel wash or tire bath wastewater to a separate on-site treatment system that prevents discharge to surface water,such as closed-loop recirculation or upland land application, or to the sanitary sewer,with local sewer district approval. Wheel wash or tire bath wastewater should not include wastewater from concrete washout areas. 61 ❑ Apply fertilizers and pesticides in a manner and at application rates that will not result in loss of chemical to stormwater runoff. Follow manufacturers' label requirements for application rates and procedures. fi ❑ Use BMPs to prevent contamination of stormwater runoff by pH-modifying sources.The sources for this contamination include, but are not limited to: bulk cement, cement kiln dust,fly ash, new concrete washing and curing waters,waste streams generated from concrete grinding and sawing, exposed aggregate processes,dewatering concrete vaults,concrete pumping, and mixer washout waters.Adjust the pH of stormwater if necessary to prevent violations of the water quality standards. Page 5 of 8 March,2017 of water quality standards for turbidity.The easiest way to avoid discharging muddy water is through infiltration and preserving vegetation. V6i,a 44 clsZ� /��c s- � 1 G�'i 1, t rf . ,/1 c-16-64 ce �(1I T t Ga-'h-a t! 17,1 ->4 41l //V 6/ ;VD i4/ .I- /nl4 ELEMENT 11: Maintain BMPs 9 ❑ Maintain and repair all temporary and permanent erosion and sediment control BMPs as needed to assure continued performance of their intended function in accordance with BMP specifications. ❑ Remove all temporary erosion and sediment control BMPs within 30 days after achieving final site stabilization or after the temporary BMPs are no longer needed.Some temporary erosion and sediment control BMPs are bio-degradable and designed to remain in place following construction such as compost socks. 7) ❑ Provide protection to all BMPs installed for the permanent control of stormwater from sediment and compaction.All BMPs that are to remain in place following completion of construction shall be examined and placed in full operating conditions. If sediment enters the BMPs during construction, it shall be removed and the facility shall be returned to the conditions specified in the construction documents. /// ❑ Remove or stabilize trapped sediment on site. Permanently stabilize disturbed soil resulting from removal of BMPs or vegetation.r ,e /� / 'i} . S'ifvcI 0/re �l �gllS �� .S5if-e., 1 5iAz ocsr �I i~( ( � r„) p ` Le r�rz .. tc r,c&Jy, 3/ AL(r/ /3duip b-e_ 4l Af P f1i'`-60 V(2 J �d Oa d'Y+�C°�C/r b 41. Si- . C�! .`342�.,. h , v 2" . . // ELEMENT 12: Manage the Project—Projects subject to Minimum Requirements 1-9 must have a Certified Erosion and Sediment Control Lead (CESCL) for site inspections. Projects subject to Minimum Requirements 1-5 do not require the inspector to be certified. By the initiation of construction,the SWPPP must identify the CESCL or inspector, who shall be present on-site or on-call at all times. Management details starting on Pg. 250. 11 ❑ Phase development projects to the maximum degree practicable and take into account seasonal work limits to prevent soil erosion and prevent transporting sediment from the site during construction. ❑ Inspection and monitoring—Inspect, maintain, and repair all BMPs as needed to assure continued performance of their intended function. ❑ Maintain, update,and implement the SWPPP. ❑ Clearing and grading activities for developments shall be permitted only if conducted using an approved site development plan (e.g.,subdivision approval). ❑ From Oct 1 through Apr 30, clearing,grading, and other soil disturbing activities is permitted only if shown that the site operator will prevent silt-laden runoff from leaving the site through a combination of the following: Page 7 of 8 March, 2017 C} Minimum Requirements #1 to #5 ti ENGINEERING DEPARTMENT Steve Lange, Project Manager cs, 904 6th Street Anacortes,WA 98221 + 1891 ,i p: 360-299-1983 OIPstevel@citvofanacortes.org I \vww.anacortes\va.gov TAB 3 (MINIMUM REQUIREMENT #3) • 1-2.5.3 Minimum Requirement#3—Source Control of Pollution All known, available and reasonable source control BMP's must be applied to all projects. Source control BMP's must be selected, designed, maintained according to the reference Ecology Manual. The intent of source control BMP's is to prevent stormwater from coming in contact with pollutants. They are a cost-effective means of reducing pollutants in stormwater, and,therefore, should be considered in all projects. The project BMP's are in place from a previous Grade and Fill Permit and comply with the Construction Storm Water Plan as outlined in Minimum Requirement#2. Any additional BMP's will be put in place as the site conditions change. The project will utilize a phased approach (BMP C162—Scheduling) - Installation of the footings and foundation. - Installation of all conduits and utilities to the foundation, including the Perforated Storm Connection. - Backfill the foundation with the required BMP T5.13 and cover with Mulch as identified in the detail until sod or grass seed can be placed. - The project crews will work to minimize impact to these areas during the construction of the residential home. Any updating of the referenced BMP's will be done at Landscaping time. c7 4 o S • Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6''' Street Anacortes,WA 98221 1891 � p: 360-299-1983 ▪ 4C 0 stevel@cityofanacortes.org www.anacorteswa.gov TAB 4 (MINIMUM REQUIREMENT #4) • Minimum Requirement#4—Preservation of Natural Drainage Systems and Outfalls Natural drainage patterns shall be maintained and discharges from the project shall occur at the natural location,to maximum extent practicable.The manner by which runoff is discharged from the project site must not cause a significant adverse impact to downstream receiving waters and down gradient properties. All outfalls require energy dissipation. The objective is to preserve and utilize drainage systems to the fullest extent because of the multiple stormwater benefits these systems provide; and to prevent erosion at the downstream of the discharge location. Refer to the reference manual for supplemental guidelines and additional information under this section. There is a natural drainage path the flows along the unimproved West 4th Street and onto the unimproved Erie Avenue where there is a conveyance swale that enters into a storm pipe, located at the northeast corner of the property within the Public Right-of-Way. The project will connect to an existing private storm drainage pipe at the low-point of the project. There is an existing stub at the northwest corner of the property that provide enough grade to allow for a Perforated Storm Connection to the private storm drainage pipe. .-,' Cr Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 17 904 6t' Street Anacortes,WA 98221 ,(�j, 1891 S p: 360-299-1983 stevel@citvofanacortcs.org I www.anacorteswa.gov TAB 5 (MINIMUM REQUIREMENT#5) • Minimum Requirement#5—On-site Stormwater Management Project thresholds that trigger Minimum Requirements#1 through#5,shall utilize the On-site Stormwater Management BMP's from List#1 for all surfaces within each type of surface in List#1;or, Demonstrate compliance with the LID Performance Standard. Projects selecting this option cannot use Rain Gardens. They may choose to use Bioretention BMP's as described in Chapter V-7—Infiltration and Bioretention Treatment Facilities to achieve the LID Performance Standard. Refer to this section of the reference Manual for all Feasibility or Infeasibility Criteria. Is this project Flow Control Exempt? (Yes\No) (See Appendix I-E: Flow Control-Exempt Surface Water). If yes, provide reasoning from the applicability section of 1-2.5.7 Minimum Requirement #7: Flow Control). If No,then the project triggers Minimum Requirement#7 (1-2.5.7) and possibly Minimum Requirement#8 (1-2.5.8). • The project site must be drained by a conveyance system that is comprised entirely of manmade conveyance elements (e.g.,pipes, ditches, outfall protection) and extends to the ordinary high water line of the exempt receiving water; and As identified under 1-3.1.3 Step 3 (MR#1), the conveyance system is piped and ditches all the way to the bay. • The conveyance system between the project site and the exempt receiving water shall have sufficient hydraulic capacity to convey discharges from future build-out conditions (under current zoning) of the site, and the existing condition from non-project areas from which runoff is or will be collected; and The 2007 Storm Drainage Comprehensive Plan did not identify any downstream issues when modeled by Gray and Osbourne. • Any erodible elements of the manmade conveyance system must be adequately stabilized to prevent erosion under the conditions noted above. No issues identified downstream Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street Anacortes,WA 98221 1891 411 p: 360-299-198.3 4 stevel@citvofanacortes.org I www.anacorteswa.gov All sites are required to utilize BMP T5.13—Post Construction Soil Quality and Depth. For each surface, consider the BMP's in the order listed for that type of surface. Use the first BMP that is considered feasible. No other on-site Stormwater Management BMP is necessary for that surface. Feasiblity shall be determined by evaluation against: 1. Design criteria, limitations and infeasiblity criteria identified for each BMP in this manual, and; 2. Competing needs criteria listed in Chapter V-5—On-site Stormwater Management. Lawn and Landscaped Area: • BMP T5.13: Post-Construction Soil Quality and Depth. (Attach Detail in Report) Detail and Section information are provided in the report. Roofs: (Provide feasible detail and maintenance and operations specifications in the report) 1. BMP T5.30: Full Dispersion Feasible\Infeasible If infeasible,explain the criteria: Due to site grades, it is difficult to send drainage uphill to the vegetated Erie Avenue and there is no native vegetation on-site. Full Dispersion would cause potential erosion on the steep slopes down hill from the home. Or,T5.10A: Downspout Full Infiltration Feasible\Infeasible If infeasible, explain the criteria: The site is solid rock and does not provide infiltration. Potential Erosion downhill. 2. BMP T5.14A:Rain Gardens Feasible\Infeasible If infeasible, explain the criteria: Slope are approximately 27% existing. The plan is to have the site slope down to the sidewalk from the house and have select plantings for landscaping. %1 Y .o -' C) Minimum Requirements #1 to #5 s ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street Anacottes,WA 98221 . 1891 p: 360-299-1983 Cy stevel@citvofanacortes.org WWw.anacorteswa.gov Or, BMP T7.30: Bioretention Cells,Swales, and Planter Boxes Feasible\Infeasible If infeasible, explain the criteria: Slope are approximately 27% existing. The plan is to have the site slope down to the sidewalk from the house and have select plantings for landscaping. 3. BMP T5.10B: Downspout Dispersion Systems Feasible\Infeasible If infeasible,explain the criteria: A) There is no vegetated flow path with a length of 25-feet, and; B) The site has an approximate slope of 27% from south to north. C) The site is solid rock. 4. BMP T5.10C: Perforated Stub-out Connections Feasible\Infeasible If infeasible, explain the criteria: No other BMP's meet the criteria for the site. This project will utilize the Perforated Stub-out Connection for the roof. Other Hard Surfaces: (Provide feasible detail and maintenance and operations specifications in the report) 1. BMP T.5.30 Full Dispersion Feasible\Infeasible If infeasible,explain the criteria: There is no native vegetation on or off-site to fully disperse the driveway 2. BMP T5.15: Permeable Pavements Feasible\Infeasible If infeasible, explain the criteria: Where installation of permeable pavement would threaten the safety or reliability of pre-existing underground utilities, pre-existing underground storage tanks, or pre- existing road sub-grades. Within 50 feet from the top of slopes that are greater than 20%. Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6`'' Street Anacortes,WA 98221 74,, 1891 p: 360-299-1983 stevel@citvofanacortcs.org I wWw.anacorteswa.gov Or,BMP T.14.A: Rain Gardens Feasible\Infeasible If infeasible, explain the criteria: Project proposes to utilize the BMP T7.30 Bioretention Swale with Underdrain for a portion of the driveway. Or, BMP T7.30: Biorention Cells,Swales and Planter Boxes Feasible\Infeasible If infeasible,explain the criteria: The project is proposing to utilize this BMP for a portion of the driveway. 3. BMP T5.12: Sheet Flow Dispersion Feasible\Infeasible If infeasible, explain the criteria: The upper portion of the driveway where the cars will be parked, will be rather flat and can sheetflow to the vegetated area of Erie Avenue. Or,BMP T5.11: Concentrated Flow Dispersion Feasible\Infeasible If infeasible, explain the criteria: This BMP can be used for the steeper portion of the driveway, only if the grades do not conflict with the existing City of Anacortes Storm Water Conveyance Swale in Erie Avenue. Signature Date n 041 , cY X GR as'dw. G f S ..E Mulch t byk 5 �Y,kk AI _W Loose soil with visible darks organic matter ti k , " ; i C 4" Loose or fractured subsoil Reprinted from Guidelines and Resources For Implementing Soil Quality and ____________________„7-,: .H,-, 7 Depth BMP T5.93 in WDOE Storm water Management Manual for Wesfern Washington, 2010, Washington Organic Recycling Council NOT TO SCALE Figure V-5.3.3 Planting Bed Cross-Section ilia DEPARTMENT O F Revised January 2016 ECOLOGY Please see htfp.//www.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. BMP T5.13: Post-Construction Soil Quality and Depth https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... BMP T5. 13 : Post-Construction Soil Quality and Depth Purpose and Definition Naturally occurring (undisturbed) soil and vegetation provide important stormwater functions including: water infiltration; nutrient, sediment, and pollutant adsorption; sediment and pollutant biofiltration; water interflow storage and transmission; and pollutant decomposition. These functions are largely lost when development strips away native soil and vegetation and replaces it with minimal topsoil and sod. Not only are these important stormwater functions lost, but such landscapes themselves become pollution generating pervious surfaces due to increased use of pesticides, fertilizers and other landscaping and household/industrial chemicals, the concentration of pet wastes, and pollutants that accompany roadside litter. Establishing soil quality and depth regains greater stormwater functions in the post development landscape, provides increased treatment of pollutants and sediments that result from development and habitation, and minimizes the need for some landscaping chemicals, thus reducing pollution through prevention. Applications and Limitations Establishing a minimum soil quality and depth is not the same as preservation of naturally occurring soil and vegetation. However, establishing a minimum soil quality and depth will provide improved on-site management of stormwater flow and water quality. Soil organic matter can be attained through numerous materials such as compost, composted woody material, biosolids, and forest product residuals. It is important that the materials used to meet the soil quality and depth BMP be appropriate and beneficial to the plant cover to be established. Likewise, it is important that imported topsoils improve soil conditions and do not have an excessive percent of clay fines. This BMP can be considered infeasible on till soil slopes greater than 33 percent. Design Guidelines • Soil retention. Retain, in an undisturbed state, the duff layer and native topsoil to the maximum extent practicable. In any areas requiring grading remove and stockpile the duff layer and topsoil on site in a designated, controlled area, not adjacent to public resources and critical areas, to be reapplied to other portions of the site where feasible. ® Soil quality. All areas subject to clearing and grading that have not been covered by 2 of 5 11/26/2018, 7:20 PM BMP T5.13:Post-Construction Soil Quality and Depth https://fort-ess.wa.gov/ecy/nadcap/wq/2014SWMMWWinteractiv... impervious surface, incorporated into a drainage facility or engineered as structural fill or slope shall, at project completion, demonstrate the following: 1. A topsoil layer with a minimum organic matter content of 10% dry weight in planting beds, and 5% organic matter content in turf areas, and a pH from 6.0 to 8.0 or matching the pH of the undisturbed soil. The topsoil layer shall have a minimum depth of eight inches except where tree roots limit the depth of incorporation of amendments needed to meet the criteria. Subsoils below the topsoil layer should be scarified at least 4 inches with some incorporation of the upper material to avoid stratified layers, where feasible. 2. Mulch planting beds with 2 inches of organic material 3. Use compost and other materials that meet these organic content requirements: a. The organic content for "pre-approved" amendment rates can be met only using compost meeting the compost specification for BMP T7.30: Bioretention Cells, Swales, and Planter Boxes, with the exception that the compost may have up to 35% biosolids or manure. The compost must also have an organic matter content of 40% to 65%, and a carbon to nitrogen ratio below 25:1. The carbon to nitrogen ratio may be as high as 35:1 for plantings composed entirely of plants native to the Puget Sound Lowlands region. b. Calculated amendment rates may be met through use of composted material meeting (a.) above; or other organic materials amended to meet the carbon to nitrogen ratio requirements, and not exceeding the contaminant limits identified in Table 220-B, Testing Parameters, in WAC 173-350-220. The resulting soil should be conducive to the type of vegetation to be established. Implementation Options: The soil quality design guidelines listed above can be met by using one of the methods listed below: 1. Leave undisturbed native vegetation and soil, and protect from compaction 3 of 5 11/26/2018, 7:20 PM BMP T5.13: Post-Construction Soil Quality and Depth https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... during construction. 2. Amend existing site topsoil or subsoil either at default "pre-approved" rates, or at custom calculated rates based on tests of the soil and amendment. 3. Stockpile existing topsoil during grading, and replace it prior to planting. Stockpiled topsoil must also be amended if needed to meet the organic matter or depth requirements, either at a default "pre-approved" rate or at a custom calculated rate. 4. Import topsoil mix of sufficient organic content and depth to meet the requirements. More than one method may be used on different portions of the same site. Soil that already meets the depth and organic matter quality standards, and is not compacted, does not need to be amended. Planning/Permitting/Inspection/Verification Guidelines & Procedures Local governments are encouraged to adopt guidelines and procedures similar to those recommended in Guidelines and Resources For Implementing Soil Quality and Depth BMP T5.13 in WDOE Stormwater Management Manual for Western Washington. This document is available at: http://www.soilsforsalmon.org/pdf/Soil BMP Manual.pdf Maintenance • Establish soil quality and depth toward the end of construction and once established,. protect from compaction, such as from large machinery use, and from erosion. • Plant vegetation and mulch the amended soil area after installation. • Leave plant debris or its equivalent on the soil surface to replenish organic matter. • Reduce and adjust, where possible, the use of irrigation, fertilizers, herbicides and pesticides, rather than continuing to implement formerly established practices. Runoff Model Representation Areas meeting the design guidelines may be entered into approved runoff models as "Pasture" rather than "Lawn." 4 of 5 11/26/2018,7:20 PM BMP T5.13:Post-Construction Soil Quality and Depth https://£ortress.wa.gov/ecyhnadcap/wq/2014SWMMWWinteractiv... Flow reduction credits can be taken in runoff modeling when BMP T5.13: Post-Construction Soil Quality and Depth is used as part of a dispersion design under the conditions described in: • BMP T5.10B: Downspout Dispersion Systems • BMP T5.11: Concentrated Flow Dispersion • BMP T5.12: Sheet Flow Dispersion • BMP T5.18: Reverse Slope Sidewalks • BMP T5.30: Full Dispersion (for public road projects) Figure V-5.3.3 Planting bed Cross-Section II 2014 Figure V-5.3.3 pdf download Washington State Department of Ecology 2012 Stormwater Management Manual for Western Washington, as Amended in December 2014 (The 2014 SWMMWW) 5 of 5 11/26/2018,7:20 PM random fill ;� Y. .4? ; >,;`f: filter fabric r. c -Rpm 4" perf pipe 18 min. .Z•Z4•r& /4+M6.�. irl p ` .�: 0=. 1 Y2" -3/4"washed rock 24" min. ■- Trench X-Section slope to road drainage system 2'x 10' level trench w/perf pipe Plan View of Roof NOT TO SCALE Figure III-3. 1 .8 49: 1 Perforated Stub-Out Connection DEPARTMENT OF Revised December 2015 ECOLOGY Please see htfp.//www.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. 111-3.1.3 Perforated Stub Out Connections(BMP T5.10C) https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... You are here:2014 SWMMWW> Volume Ill-Hydrologic Analysis and Flow Control BMPs> Chapter 111-3-Flow Control Design >Ill-3.1.3 Perforated Stub Out Connections (BMP T5.10C) 1 of 3 11/26/2018, 8:08 PM III-3.1.3 Perforated Stub Out Connections(BMP T5.10C) https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... III-3. 1 .3 Perforated Stub Out Connections (BMP T5. 10C) A perforated stub out connection is a length of perforated pipe within a gravel filled trench that is placed between roof downspouts and a stub out to the local drainage system. Figure III-3.1.8 Perforated Stub-Out Connection illustrates a perforated stub out connection. These systems are intended to provide some infiltration during drier months. During the wet winter months, they may provide little or no flow control. Applications & Limitations Perforated stub-outs are not appropriate when seasonal water table is less than one foot below trench bottom. In projects subject to 1-2.5.5 Minimum Requirement#5: On-site Stormwater Management, perforated stub-out connections may be used only when all other higher priority on-site stormwater management BMPs are not feasible, per the criteria for each of those BMPs. Select the location of the connection to allow a maximum amount of runoff to infiltrate into the ground (ideally a dry, relatively well drained, location). To facilitate maintenance, do not locate the perforated pipe portion of the system under impervious or heavily compacted (e.g., driveways and parking areas) surfaces. Use the same setbacks as for infiltration trenches in III-3.1.1 Downspout Full Infiltration Systems (BMP T5.10A). Have a licensed geologist, hydrogeologist, or engineering geologist evaluate potential runoff discharges towards landslide hazard areas. Do not place the perforated portion of the pipe on or above slopes greater than 20% or above erosion hazard areas without evaluation by a professional engineer with geotechnical expertise or qualified geologist and jurisdiction approval. For sites with septic systems, the perforated portion of the pipe must be downgradient of the drainfield primary and reserve areas. This requirement can be waived if site topography will clearly prohibit flows from intersecting the drainfield or where site conditions (soil permeability, distance between systems, etc.) indicate that this is unnecessary. Design Criteria Perforated stub out connections consist of at least 10 feet of perforated pipe per 5,000 square feet of roof area laid in a level, 2 foot wide trench backfilled with washed drain rock. Extend the drain rock to a depth of at least 8 inches below the bottom of the pipe and cover the pipe. Lay the pipe level and cover the rock trench with filter fabric and 6 inches of fill (see Figure III-3.1.8 Perforated Stub-Out Connection). 2 of 3 11/26/2018, 8:08 PM I1I-3.1.3 Perforated Stub Out Connections(BMP T5.10C) https://fortress.wa.gov/ecyhnadcap/wq/2014SWMMWWinteractiv... Runoff Model Representation Any flow reduction is variable and unpredictable. No computer modeling techniques are allowed that would predict any reduction in flow rates and volumes from the connected area. Figure III-3.1.8 Perforated Stub-Out Connection :ask 2014 Figure III-3.1.8 pdf download Washington State Department of Ecology 2012 Stormwater Management Manual for Western Washington. as Amended in December 2014 (The 2014 SWMMWW) 3 of 3 11/26/2018,8:08 PM Provide a 1"drop Provide a 1" drop from the edge of I sidewalk from the edge of pavement ` BSM bottom width _ _ varies, 1' minimum Edge of -\ pavement Overflow,standpipe Sidewalk or curb-cutEi-' • i . ..,:"..:...:7.H.. „,..:: ..:4, _IL.. ��iy� f/�j ���� 6" min. freeboard — `., I I III III �y `��// I I W ill 11 r�i Ponding depth j //� I 1 111=11 I 111 Iflii ili1 I—II iyyy varies \ / :::'... ..:':: II' III_::: ; ;::.;>>;:.: ::':;., ;,''f'iyii � /// II-111 II i ,.:'>:::::':::::::. -::_:- :: _:: III III�I I . . ..... . . .... . ...... ...::.: :::.:.:. 3 woodchip mulch 3"woodchip mulch, —III-III- — 1-1 I l li p , __' I ,,I — aggregate, or sod aggregate, or sod r�.T %d y III 1 3" coarse compost 6" 12" 7'a4-rr.:!t'f� 'r a Y to 4`.-�•:`sue-�ry � �► : ,t�.9 ,, 111 in ponding area t I ti.}.:t ..;-`.z'.-`.' '��-.�� - 18 Bioretention Soil 6 ,r i li i-i?r'r i'-1r-0-... Media (BSM) t1Mineral aggregate Mineral aggregate Underdrain pipe r- bottom width to match -0 BSM bottom width Notes: 1. Scarify subgrade 3"min. before bioretention soil installation 2. Compact BSM to 85% per ASTM 1577 NOT TO SCALE ialall Ift'' Figure V-7.4. 1b IIVI Typical Bioretention w/Underdrain DEPARTMENT OF Revised February 2016 ECOLOGY Please see http✓/www.ecy.wa.gov/copyrighthtmt for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. BMP T7.30: Bioretention Cells, Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SW1V1MWWinteractiv... BMP T7.30: Bioretention Cells, Swales, and Planter Boxes Purpose To provide effective removal of many stormwater pollutants, and provide reductions in stormwater runoff quantity and surface runoff flow rates. Where the surrounding native soils have adequate infiltration rates, bioretention can help comply with flow control and treatment requirements. Where the native soils have low infiltration rates, underdrain systems can be installed and the facility used to filter pollutants and detain flows that exceed infiltration capacity of the surrounding soil. However, designs utilizing underdrains provide less flow control benefits. Description Bioretention areas are shallow landscaped depressions, with a designed soil mix and plants adapted to the local climate and soil moisture conditions, that receive stormwater from a contributing area. The term, bioretention, is used to describe various designs using soil and plant complexes to manage stormwater. The following terminology is used in this manual: • Bioretention cells: Shallow depressions with a designed planting soil mix and a variety of plant material, including trees, shrubs, grasses, and/or other herbaceous plants. Bioretention cells may or may not have an underdrain and are not designed as a conveyance system. (See Figure V-7.4.1 a Typical Bioretention, Figure V-7.4.1 b Typical Bioretention w/Underdrain, and Figure V-7.4.1c Typical Bioretention w/Liner (Not LID)) • Bioretention swales: Incorporate the same design features as bioretention cells; however, bioretention swales are designed as part of a system that can convey stormwater when maximum ponding depth is exceeded. Bioretention swales have relatively gentle side slopes and ponding depths that are typically 6 to 12 inches. (See Figure V-7.4.1 a Typical Bioretention, Figure V-7.4.1b Typical Bioretention w/Underdrain, and Figure V-7.4.1c Typical Bioretention w/Liner (Not LID)) • Bioretention planters and planter boxes: Designed soil mix and a variety of plant material including trees, shrubs, grasses, and/or other herbaceous plants within a vertical walled container usually constructed from formed concrete, but could include other materials. Planter boxes are completely impervious and include a bottom (must include an underdrain). Planters have an open bottom and allow infiltration to the subgrade. These designs are often used in ultra-urban settings. (See Figure V 7.4.2 Example of a 2 of 28 11/26/2018, 7:48 PM BMP T7.30:Bioretention Cells, Swales, and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... Applications and Limitations Because bioretention facilities use an imported soil mix that has a moderate design infiltration rate, they are best applied for small drainages, and near the source of the stormwater. Cells may be scattered throughout a subdivision; a swale may run alongside the access road; or a series of planter boxes may serve the road. In these situations, they can but are not required to fully meet the requirement to treat 91% of the stormwater runoff file from pollution-generating surfaces. But the amount of stormwater that is predicted to pass through the soil profile may be estimated and subtracted from the 91% volume that must be treated. Downstream treatment facilities may be significantly smaller as a result. Bioretention facilities that infiltrate into the ground can also serve a significant flow reduction function. They can, but are not required to fully meet the flow control duration standard of 1-2.5.7 Minimum Requirement #7: Flow Control. Because they typically do not have an orifice restricting overflow or underflow discharge rates, they typically don't fully meet 1-2.5.7 Minimum Requirement #7: Flow Control. However, their performance contributes to meeting the standard, and that can result in much smaller flow control facilities at the bottom of the project site. When used in combination with other low impact development techniques, they can also help achieve compliance with the Performance Standard option of 1-2.5.5 Minimum Requirement #5: On-site Stormwater Management. Bioretention constructed with imported composted material should not be used within one- quarter mile of phosphorus-sensitive waterbodies if the underlying native soil does not meet the soil suitability criteria for treatment in Chapter III-3 - Flow Control Design. Preliminary monitoring indicates that new bioretention facilities can add phosphorus to stormwater. Therefore, they should also not be used with an underdrain when the underdrain water would be routed to a phosphorus-sensitive receiving water. Applications with or without underdrains vary extensively and can be applied in new development, redevelopment and retrofits. Typical applications include: • Individual lots for rooftop, driveway, and other on-lot impervious surface. ® Shared facilities located in common areas for individual lots. ® Areas within loop roads or cul-de-sacs. a Landscaped parking lot islands. ® Within right-of-ways along roads (often linear bioretention swales and cells). 4 of 28 11/26/2018, 7:48 PM BMP T7.30: Bioretention Cells, Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... o Common landscaped areas in apartment complexes or other multifamily housing designs. • Planters on building roofs, patios, and as part of streetscapes. Infeasibility Criteria: The following criteria describe conditions that make bioretention or rain gardens not required. If a project proponent wishes to use a bioretention or rain garden BMP though not required to because of these feasibility criteria, they may propose a functional design to the local government. Note: Criteria with setback distances are as measured from the bottom edge of the bioretention soil mix. Citation of any of the following infeasibility criteria must be based on an evaluation of site-specific conditions and a written recommendation from an appropriate licensed professional (e.g., engineer, geologist, hydrogeologist): ® Where professional geotechnical evaluation recommends infiltration not be used due to reasonable concerns about erosion, slope failure, or down gradient flooding. • Within an area whose ground water drains into an erosion hazard, or landslide hazard area. • Where the only area available for siting would threaten the safety or reliability of pre- existing underground utilities, pre-existing underground storage tanks, pre-existing structures, or pre-existing road or parking lot surfaces. ® Where the only area available for siting does not allow for a safe overflow pathway to the municipal separate storm sewer system or private storm sewer system. ® Where there is a lack of usable space for rain garden/bioretention facilities at re- development sites, or where there is insufficient space within the existing public right-of- way on public road projects. e Where infiltrating water would threaten existing below grade basements. o Where infiltrating water would threaten shoreline structures such as bulkheads. The following criteria can be cited as reasons for a finding of infeasibility without further justification (though some require professional services): 5 of28 11/26/2018,7:48 PM BMP T7.30: Bioretention Cells, Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... • Within setbacks from structures as established by the local government with jurisdiction. • Where they are not compatible with surrounding drainage system as determined by the local government with jurisdiction (e.g., project drains to an existing stormwater collection system whose elevation or location precludes connection to a properly functioning bioretention facility). • Where land for bioretention is within area designated as an erosion hazard, or landslide hazard. • Where the site cannot be reasonably designed to locate bioretention facilities on slopes less than 8%. • Within 50 feet from the top of slopes that are greater than 20% and over 10 feet of vertical relief. • For properties with known soil or ground water contamination (typically federal Superfund sites or state cleanup sites under the Model Toxics Control Act (MTCA)): o Within 100 feet of an area known to have deep soil contamination; o Where ground water modeling indicates infiltration will likely increase or change the direction of the migration of pollutants in the ground water; o Wherever surface soils have been found to be contaminated unless those soils are removed within-10 horizontal feet from the infiltration area; o Any area where these facilities are prohibited by an approved cleanup plan under the state Model Toxics Control Act or Federal Superfund Law, or an environmental covenant under Chapter 64.70 RCW. • Within 100 feet of a closed or active landfill. • Within 100 feet of a drinking water well, or a spring used for drinking water supply. • Within 10 feet of small on-site sewage disposal drainfield, including reserve areas, and grey water reuse systems. For setbacks from a "large on-site sewage disposal system", see Chapter 246-272B WAC. • Within 10 feet of an underground storage tank and connecting underground pipes when the 6 of 28 11/26/2018, 7:48 PM BMP T7.30: Bioretention Cells, Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... capacity of the tank and pipe system is 1100 gallons or less. (As used in these criteria, an underground storage tank means any tank used to store petroleum products, chemicals, or liquid hazardous wastes of which 10% or more of the storage volume (including volume in the connecting piping system) is beneath the ground surface. • Within 100 feet of an underground storage tank and connecting underground pipes when the capacity of the tank and pipe system is greater than 1100 gallons. • Where the minimum vertical separation of 1 foot to the seasonal high water table, bedrock, or other impervious layer would not be achieved below bioretention or rain gardens that would serve a drainage area that is: 1) less than 5,000 sq. ft. of pollution-generating impervious surface, and 2) less than 10,000 sq. ft. of impervious surface; and, 3) less than 3/4 acres of pervious surface. • Where the a minimum vertical separation of 3 feet to the seasonal high water table, bedrock or other impervious layer would not be achieved below bioretention that: 1) would serve a drainage area that meets or exceeds: a) 5,000 square feet of pollution-generating impervious surface, or b) 10,000 square feet of impervious surface, or c) three-quarter (3/4) acres of pervious surfaces; and 2) cannot reasonably be broken down into amounts smaller than indicated in (1). • Where the field testing indicates potential bioretention/rain garden sites have a measured (a.k.a., initial) native soil saturated hydraulic conductivity less than 0.30 inches per hour. If the measured native soil infiltration rate is less than 0.30 in/hour, this option should not be used to meet the requirements of 1-2.5.5 Minimum Requirement#5: On-site Stormwater Management. In these slow draining soils, a bioretention facility with an underdrain may be used to treat pollution- generating surfaces to help meet 1-2.5.6 Minimum Requirement#6: Runoff Treatment. If the underdrain is elevated within a base course of gravel, the bioretention facility will also provide some modest flow reduction benefit that will help achieve 1-2.5.7 Minimum Requirement#7: Flow Control. A local government may designate geographic boundaries within which bioretention cells, swales, or planters may be designated as infeasible due to year-round, seasonal or periodic high groundwater conditions, or due to inadequate infiltration rates. Designations must be based upon a pre-ponderance of field data, collected within the area of concern, that indicate a high likelihood of failure to achieve the minimum groundwater clearance or infiltration rates identified in the above infeasibility criteria. The local government must develop a technical report and make it available upon request to the Dept. of Ecology. The report must be authored by (a) professional(s) with appropriate expertise (e.g., registered engineer, geologist, hydrogeologist, or 7 of 28 11/26/2018, 7:48 PM BMP T7.30:Bioretention Cells, Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... certified soil scientist), and document the location and the pertinent values/observations of data that were used to recommend the designation and boundaries for the geographic area. The types of pertinent data_include, but are not limited to: • Standing water heights or evidence of recent saturated conditions in observation wells, test pits, test holes, and well logs. • Observations of areal extent and time of surface ponding, including local government or professional observations of high water tables, frequent or long durations of standing water, springs, wetlands, and/or frequent flooding. • Results of infiltration tests In addition, a local government can map areas that meet a specific infeasibility criterion listed above provided they have an adequate data basis. Criteria that are most amenable to mapping are: • Where land for bioretention is within an area designated by the local government as an erosion hazard, or landslide hazard • Within 50 feet from the top of slopes that are greater than 20% and over 10 feet vertical relief • Within 100 feet of a closed or active landfill Other Site Suitability Factors: • Utility conflicts: Consult local jurisdiction requirements for horizontal and vertical separation required for publicly-owned utilities, such as water and sewer. Consult the appropriate franchise utility owners for separation requirements from their utilities, which may include communications and gas. When separation requirements cannot be met, designs should include appropriate mitigation measures, such as impermeable liners over the utility, sleeving utilities, fixing known leaky joints or cracked conduits, and/or adding an underdrain to the bioretention. • Transportation safety: The design configuration and selected plant types should provide adequate sight distances, clear zones, and appropriate setbacks for roadway applications in accordance with local jurisdiction requirements. • Ponding depth and surface water draw-down: Flow control needs, as well as location in the 8 of 28 11/26/2018, 7:48 PM BMP T7.30: Bioretention Cells,Swa]es,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... development, and mosquito breeding cycles will determine draw-down timing. For example, front yards and entrances to residential or commercial developments may require rapid surface dewatering for aesthetics. • Impacts of surrounding activities: Human activity influences the location of the facility in the development. For example, locate bioretention areas away from traveled areas on individual lots to prevent soil compaction and damage to vegetation or provide elevated or bermed pathways in areas where foot traffic is inevitable. and provide barriers, such as wheel stops, to restrict vehicle access in roadside applications. ® Visual buffering: Bioretention facilities can be used to buffer structures from roads, enhance privacy among residences, and for an aesthetic site feature. ® Site growing characteristics and plant selection: Appropriate plants should be selected for sun exposure, soil moisture, and adjacent plant communities. Native species or hardy cultivars are recommended and can flourish in the properly designed and placed Bioretention Soil Mix with no nutrient or pesticide inputs and 2-3 years irrigation for establishment. Invasive species control may be necessary. Field and Design Procedures Geotechnical analysis is an important first step to develop an initial assessment of the variability of site soils, infiltration characteristics and the necessary frequency and depth of infiltration tests. See the Site Planning guidance in Chapter 1-3 - Preparation of Stormwater Site Plans. See 111-3.4 Stormwater-related Site Procedures and Design Guidance for Bioretention and Permeable Pavement for more specific guidance regarding required field testing, assignment of infiltration rate correction factors, project submission requirements, and modeling. Determining subgrade infiltration rates Determining infiltration rates of the site soils is necessary to determine feasibility of designs that intend to infiltrate stormwater on-site. It is also necessary to estimate flow reduction benefits of such designs when using the Western Washington Hydrologic Model (WWHM) or MGS Flood. The following provides recommended tests for the soils underlying bioretention areas. The test should be run at the anticipated elevation of the top of the native soil beneath the bioretention facility. Method 1: 9 of 28 11/26/2018, 7:48 PM BMP T7.30:Bioretention Cells, Swales, and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... • Small bioretention cells (bioretention facilities receiving water from 1 or 2 individual lots or < 1/4 acre of pavement or other impervious surface): Small-Scale Pilot Infiltration Test (PIT). See III-3.3.6 Design Saturated Hydraulic Conductivity — Guidelines and Criteria for small- scale PIT method description. See III-3.4 Stormwater-related Site Procedures and Design Guidance for Bioretention and Permeable Pavement for a discussion of the assignment of an appropriate infiltration correction factor. ® Large bioretention cells (bioretention facilities receiving water from several lots or 1/4 acre or more of pavement or other impervious surface): Multiple small or one large-scale PIT. If using the small-scale test, measurements should be taken at several locations within the area of interest. After completing the infiltration test, excavate the test site at least 3 feet if variable soil conditions or seasonal high water tables are suspected. Observe whether water is infiltrating vertically or only spreading horizontally because of ground water or a restrictive soil layer. See III-3.4 Stormwater-related Site Procedures and Design Guidance for Bioretention and Permeable Pavement for a discussion of the assignment of an appropriate infiltration correction factor. • Bioretention swales: approximately 1 small--scale PIT per 200 feet of swale, and within each length of road with significant differences in subsurface characteristics. However, if the site subsurface characterization, including soil borings across the development site, indicate consistent soil characteristics and depths to seasonal high ground water conditions, the number of test locations may be reduced to a frequency recommended by a geotechnical professional. See III-3.4 Stormwater-related Site Procedures and Design Guidance for Bioretention and Permeable Pavement for a discussion of the assignment of an appropriate infiltration correction factor. Method 2: Soil Grain Size Analysis Method: This method is restricted to sites underlain with soils not consolidated by glacial advance (e.g., recessional outwash soils). • Small bioretention cells: Use the grain size analysis method described in III-3.3.6 Design Saturated Hydraulic Conductivity — Guidelines and Criteria based on the layer(s) identified in results of one soil test pit or boring. ® Large bioretention cells: Use the grain size analysis method based on more than one soil test pit or boring. The more test pits/borings used, and the more evidence of consistency in the soils, the less of a correction factor may be used. 10 of 28 11/26/2018,7:48 PM B MP T730: Bioretention Cells, Swales,and Planter Boxes https://fortress.wa.gov/ecy/rnadcap/wq/2014SWMMWWinteractiv.., Bioretention swales: Approximately 1 soil test pit/boring per 200 feet of swale and within each length of road with significant differences in subsurface characteristics. However, if the site subsurface characterization, including soil borings across the development site, indicate consistent soil characteristics and depths to seasonal high ground water conditions, the number of test locations may be reduced to the minimum frequency indicated above. Determining Bioretention soil mix infiltration rate: Option 1: If using the Bioretention Soil Mix recommended herein, the WWHM assumes a default infiltration rate of 12 inches per hour (15.24 cm/hr)Option 2: If creating a custom bioretention soil mix, Use ASTM D 2434 Standard Test Method for Permeability of granular Soils (Constant Head) with a compaction rate of 85 percent using ASTM D1557 Test Method for Laboratory Compaction Characteristics of Soil Using Modified Effort. See Appendix V-B for specific procedures for conducting ASTM D 2434. The WWHM user must enter the derived value into WWHM using "View/Edit Soil Types" pull down menu and adjusting the Ksat value. After selecting option 1 or 2 above, determine the appropriate safety factor for the saturated hydraulic conductivity (Ksat). If the contributing area of the bioretention cell or swale is equal to or exceeds any of the following limitations: 5,000 square feet of pollution-generating impervious surface; 10,000 square feet of impervious surface; % acre of lawn and landscape, use 4 as the infiltration rate (Ksat) safety factor. If the contributing area is less than all of the above areas, or if the design includes a pretreatment device for solids removal, use 2 as the Ksat safety factor. The WWHM has a field for entering the appropriate safety factor. Design Criteria for Bioretention These design criteria are from the LID Technical Guidance Manual for Puget Sound (2012). Refer to that document for additional explanations and background. Note that the LID Technical Guidance Manual for Puget Sound (2012) is for additional information purposes only. You must follow the guidance within this manual if there are any 11 of 28 11/26/2018, 7:48 PM BMP T7.30: Bioretention Cells,Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... discrepancies between this manual and the LID Technical Guidance Manual for Puget Sound (2012). Flow entrance and presettling Flow entrance design will depend on topography, flow velocities and volume entering the pretreatment and bioretention area, adjacent land use and site constraints. Flow velocities entering bioretention should be less than 1.0 ft/second to minimize erosion potential. Five primary types of flow entrances can be used for bioretention: ® Dispersed, low velocity flow across a landscape area: Landscape areas and vegetated buffer strips slow incoming flows and provide an initial settling of particulates and are the preferred method of delivering flows to the bioretention cell., Dispersed flow may not be possible given space limitations or if the facility is controlling roadway or parking lot flows where curbs are mandatory. 6 Dispersed or sheet flow across pavement or gravel and past wheel stops for parking areas. ® Curb cuts for roadside, driveway or parking lot areas: Curb cuts should include a rock pad, concrete or other erosion protection material in the channel entrance to dissipate energy. Minimum curb cut width should be 12 inches; however, 18 inches is recommended. Avoid the use of angular rock or quarry spalls and instead use round (river) rock if needed. Removing sediment from angular rock is difficult. Flow entrance should drop 2 to 3 inches from curb line and provide an area for settling and periodic removal of sediment and coarse material before flow dissipates to the remainder of the cell. ® Curb cuts used for bioretention areas in high use parking lots or roadways require increased level of maintenance due to high coarse particulates and trash accumulation in the flow entrance and associated bypass of flows. The following are methods recommended for areas where heavy trash and coarse particulates are anticipated: o Curb cut width: 18 inches. o At a minimum the flow entrance should drop 2 to 3 inches from gutter line into the bioretention area and provide an area for settling and periodic removal of debris. o Anticipate relatively more frequent inspection and maintenance for areas with large impervious areas, high traffic loads and larger debris loads. o Catch basins or forebays may be necessary at the flow entrance to adequately 12 of 28 11/26/2018, 7:48 PM BMP T7.30: Bioretention Cells,Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... capture debris and sediment load from large contributing areas and high use areas. Piped flow entrance in this setting can easily clog and catch basins with regular maintenance are necessary to capture coarse and fine debris and sediment. ® Pipe flow entrance: Piped entrances should include rock or other erosion protection material in the channel entrance to dissipate energy and disperse flow. • Catch basin: In some locations where road sanding or higher than usual sediment inputs are anticipated, catch basins can be used to settle sediment and release water to the bioretention area through a grate for filtering coarse material. • Trench drains: can be used to cross sidewalks or driveways where a deeper pipe conveyance creates elevation problems. Trench drains tend to clog and may require additional maintenance. Woody plants can restrict or concentrate flows and can be damaged by erosion around the root ball and should not be placed directly in the entrance flow path. Bottom area and side slopes Bioretention areas are highly adaptable and can fit various settings such as rural and urban roadsides, ultra urban streetscapes and parking lots by adjusting bottom area and side slope configuration. Recommended maximum and minimum dimensions include: • Maximum planted side slope if total cell depth is greater than 3 feet: 3H:1V. If steeper side slopes are necessary rockeries, concrete walls or soil wraps may be effective design options. Local jurisdictions may require bike and/or pedestrian safety features, such as railings or curbs with curb cuts, when steep side slopes are adjacent to sidewalks, walkways, or bike lanes. ® Minimum bottom width for bioretention swales: 2 feet recommended and 1 foot minimum. Carefully consider flow depths and velocities, flow velocity control (check dams) and appropriate vegetation or rock mulch to prevent erosion and channelization at bottom widths less than 2 feet. Bioretention areas should have a minimum shoulder of 12 inches (30.5 cm) between the road edge and beginning of the bioretention side slope where flush curbs are used. Compaction effort for the shoulder should 90 percent proctor. Ponding area 13 of 28 11/26/2018,7:48 PM BMP T7.30: Bioretention Cells,Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... Ponding depth recommendations: ® Maximum ponding depth: 12 inches (30.5 cm). ® Surface pool drawdown time: 24 hours For design on projects subject to 1-2.5.5 Minimum Requirement #5: On-site Stormwater Management, and choosing to use List #1 or List#2 of that requirement, a bioretention facility shall have a horizontally projected surface area below the overflow which is at least 5% of the total impervious surface area draining to it. If lawn/landscape area will also be draining to the bioretention facility, Ecology recommends that the bioretention facility's horizontally projected surface area below the overflow be increased by 2% of the lawn/landscape area. The ponding area provides surface storage for storm flows, particulate settling, and the first stages of pollutant treatment within the cell. Pool depth and draw-down rate are recommended to provide surface storage, adequate infiltration capability, and soil moisture conditions that allow for a range of appropriate plant species. Soils must be allowed to dry out periodically in order to: restore hydraulic capacity to receive flows from subsequent storms; maintain infiltration rates; maintain adequate soil oxygen levels for healthy soil biota and vegetation; provide proper soil conditions for biodegradation and retention of pollutants. Maximum designed depth of ponding (before surface overflow to a pipe or ditch) must be considered in light of drawdown time. For bioretention areas with underdrains, elevating the drain to create a temporary saturated zone beneath the drain is advised to promote denitrification (conversion of nitrate to nitrogen gas) and prolong moist soil conditions for plant survival during dry periods (see Underdrain section below for details). Surface overflow Surface overflow can be provided by vertical stand pipes that are connected to underdrain systems, by horizontal drainage pipes or armored overflow channels installed at the designed maximum pond ing elevations. Overflow can also be provided by a curb cut at the down-gradient end of the bioretention area to direct overflows back to the street. Overflow conveyance structures are necessary for all bioretention facilities to safely convey flows that exceed the capacity of the facility and to protect downstream natural resources and property. The minimum freeboard from the invert of the overflow stand pipe, horizontal drainage pipe or earthen channel should be 6 inches unless otherwise specified by the local jurisdiction's design standards. 14 of 28 11/26/2018,7:48 PM BMP T7.30:Bioretention Cells, Swales,and Planter Boxes https://fortress.wa.gov/ecyhnadcap/wq/2014SWMMWWinteractiv... Default Bioretention Soil Media (BSM) Projects which use the following requirements for the bioretention soil media do not have to test the media for it saturated hydraulic conductivity (aka. Infiltration rate). They may assume the rates specified in the subsection titled "Determining Bioretention Soil Mix Infiltration Rate." Mineral Aggregate Percent Fines: A range of 2 to 4 percent passing the #200 sieve is ideal and fines should not be above 5 percent for a proper functioning specification according to ASTM D422. Aggregate Gradation The aggregate portion of the BSM should be well-graded. According to ASTM D 2487-98 (Classification of Soils for Engineering Purposes (Unified Soil Classification System)), well- graded sand should have the following gradation coefficients: • Coefficient of Uniformity (Cu = D60/D1 0) equal to or greater than 4, and • Coefficient of Curve (Cc = (D30)2/D60 x D10) greater than or equal to 1 and less than or equal to 3. Table V 7.4.1 General Guideline for Mineral Aggregate Gradation provides a gradation guideline for the aggregate component of a Bioretention Soil Mix specification in western Washington (Hinman, Robertson, 2007). The sand gradation below is often supplied as a well-graded utility or screened. With compost this blend provides enoughfines for adequate water retention, hydraulic conductivity within recommended range (see below), pollutant removal capability, and plant growth characteristics for meeting design guidelines and objectives. Table V 7.4.1 General Guideline for Mineral Aggregate Gradation Sieve Size Percent Passing 3/8" 100 #4 95-100 #10 75-90 #40 25-40 #100 4-10 #200 2-5 Where existing soils meet the above aggregate gradation, those soils may be amended rather 15 of 28 11/26/2018,7:48 PM BMP T7.30:Bioretention Cells, Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... than importing mineral aggregate. Compost to Aggregate Ratio, Organic Matter Content, Cation Exchange Capacity • Compost to aggregate ratio: 60-65 percent mineral aggregate, 35—40 percent compost by volume. • Organic matter content: 5 — 8 percent by weight. • Cation Exchange Capacity (CEC) must be > 5 milliequivalents/100 g dry soil Note: Soil mixes meeting the above specifications do not have to be tested for CEC. They will readily meet the minimum CEC. Compost To ensure that the BSM will support healthy plant growth and root development, contribute to biofiltration of pollutants, and not restrict infiltration when used in the proportions cited herein, the following compost standards are required. • Meets the definition of"composted material" in WAC 173-350-100 and complies with testing parameters and other standards in WAC 173-350-220. • Produced at a composting facility that is permitted by the jurisdictional health authority. Permitted compost facilities in Washington are included on a list available at http://www.ecy.wa.qov/programs/swfa/orqanics/soil.html • The compost product must originate a minimum of 65 percent by volume from recycled plant waste comprised of"yard debris," "crop residues," and "bulking agents" as those terms are defined in WAC 173-350-100. A maximum of 35 percent by volume of"post- consumer food waste" as defined in WAC 173-350-100, but not including biosolids, may be substituted for recycled plant waste. • Stable (low oxygen use and CO2 generation) and mature (capable of supporting plant growth) by tests shown below. This is critical to plant success in a bioretention soil mixes. • Moisture content range: no visible free water or dust produced when handling the material. • Tested in accordance with the U.S. Composting Council "Test Method for the Examination of Compost and Composting" (TMECC), as established in the Composting Council's "Seal of Testing Assurance" (STA) program. Most Washington compost facilities now use these 16 of 28 11/26/2018,7:48 PM BMP T7.30: Bioretention Cells,Swales, and Planter Boxes https://fortress.wa,gov/ecy/madcap/wq/2014SWMMWWinteractiv... tests. • Screened to the following size gradations for Fine Compost when tested in accordance with TMECC test method 02.02-B, Sample Sieving for Aggregate Size Classification." Fine Compost shall meet the following gradation by dry weight Minimum percent passing 2": 100% Minimum percent passing 1": 99% Minimum percent passing 5/8": 90% Minimum percent passing '/4": 75% • pH between 6.0 and 8.5 (TMECC 04.11-A). "Physical contaminants" (as defined in WAC 173-350-100) content less that 1% by weight (TMECC 03.08-A) total, not to exceed 0.25 percent film plastic by dry weight. • Minimum organic matter content of 40% (TMECC 05.07-A "Loss on Ignition) • Soluble salt content less than 4.0 dS/m (mmhos/cm) (TMECC 04.10-A "Electrical Conductivity, 1:5 Slurry Method, Mass Basis") • Maturity indicators from a cucumber bioassay (TMECC 05.05-A "Seedling Emergence and Relative Growth ) must be greater than 80%for both emergence and vigor") • Stability of 7 mg CO2-C/g OM/day or below (TMECC 05.08-B "Carbon Dioxide Evolution Rate") • Carbon to nitrogen ratio (TMECC 05.02A " Carbon to Nitrogen Ratio" which uses 04.01 "Organic Carbon" and 04.02D "Total Nitrogen by Oxidation") of less than 25:1. The C:N ratio may be up to 35:1 for plantings composed entirely of Puget Sound Lowland native species and up to 40:1 for coarse-compost to be used as a surface mulch (not in a soil mix). Design Criteria for Custom Bioretention Soil Mixes Projects which prefer to create a custom Bioretention Soil Mix rather than using the default requirements above must demonstrate compliance with the following criteria using the specified 17 of 28 11/26/2018,7:48 PM BMP T7.30: Bioretention Cells, Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... test method: • CEC >_ 5 meq/100 grams of dry soil; USEPA 9081 • pH between 5.5 and 7.0 ® 5 - 8 percent organic matter content before and after the saturated hydraulic conductivity test; ASTM D2974(Standard Test Method for Moisture, Ash, and Organic Matter of Peat and Other Organic Soils) ® 2-5 percent fines passing the 200 sieve; TMECC 04.11-A • Measured (Initial) saturated hydraulic conductivity of less than 12 inches per hour; ASTM D 2434 (Standard Test Method for Permeability of Granular Soils (Constant Head)) at 85% compaction per ASTM D 1557 (Standard Test Method s for Laboratory Compaction Characteristics of Soil Using Modified Effort). Also, use Appendix V-B: Recommended Modifications to ASTM D 2434 When Measuring Hydraulic Conductivity for Bioretention Soil Mixes. • Design (long-term) saturated hydraulic conductivity of more than 1 inch per hour. Note: Design saturated hydraulic conductivity is determined by applying the appropriate infiltration correction factors as explained above under "Determining Bioretention soil mix infiltration rate." • If compost is used in creating the custom mix, it must meet all of the specifications listed above for compost except for the gradation specification. An alternative gradation specification must indicate the minimum percent passing for a range of similar particle sizes. Soil Depth: Soil depth must be a minimum of 18 inches to provide water quality treatment and good growing conditions for selected plants Filter Fabrics: Do not use filter fabrics between the subgrade and the Bioretention Soil Mix. The gradation between existing soils and Bioretention Soil Mix is not great enough to allow significant migration of fines into the Bioretention Soil Mix. Additionally, filter fabrics may clog with downward migration of fines from the Bioretention Soil Mix. 18 of 28 11/26/2018,7:48 PM BMP T7.30: Bioretention Cells,Swales, and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... Underdrain (optional): Where the underlying native soils have an estimated initial infiltration rate between 0.3 and 0.6 inches per hour, bioretention facilities without an underdrain, or with an elevated underdrain directed to a surface outlet, may be used to satisfy List #2 of 1-2.5.5 Minimum Requirement #5: On-site Stormwater Management. Underdrained bioretention facilities that drain to a retention/detention facility must meet the following criteria if they are used to satisfy list #2 of 1-2.5.5 Minimum Requirement #5: On-site Stormwater Management. • the invert of the underdrain must be elevated 6 inches above the bottom of the aggregate bedding layer. A larger distance between the underdrain and bottom of the bedding layer is desirable, but cannot be used to trigger infeasibility due to inadequate vertical separation to the seasonal high water table, bedrock, or other impermeable layer. ® the distance between the bottom of the bioretention soil mix and the crown of the underdrain pipe must be not less than 6 but not more than 12 inches; o the aggregate bedding layer must run the full length and the full width of the bottom of the bioretention facility; ® the facility must not be underlain by a low permeability liner that prevents infiltration into the native soil. Figure V-7.4.1 b Typical Bioretention w/Underdrain depicts a bioretention facility with an elevated underdrain. Figure V-7.4.1 c Typical Bioretention w/Liner (Not LID) depicts a bioretention facility with an underdrain and a low permeability liner. The latter is not considered a low impact development BMP. It cannot be used to implement List #2 of 1-2.5.5 Minimum Requirement #5: On-site Stormwater Management. The volume above an underdrain pipe in a bioretention facility provides pollutant filtering and minor detention. However, only the void volume of the aggregate below the underdrain invert and above the bottom of the bioretention facility (subgrade) can be used in the WWHM or MGSFlood for dead storage volume that provides flow control benefit. Assume a 40% void volume for the Type 26 mineral aggregate specified below. Underdrain systems should only be installed when the bioretention facility is: o Located near sensitive infrastructure (e.g., unsealed basements) and potential for flooding is likely. 19 of 28 11/26/2018, 7:48 PM BMP T7.30:Bioretention Cells, Swales, and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... • Used for filtering storm flows from gas stations or other pollutant hotspots (requires impermeable liner). e Located above native soils with infiltration rates that are not adequate to meet maximum pool and system dewater rates, or are below a minimum rate allowed by the local government. • In an area that does not provide the minimum depth to a hydraulic restriction layer, e.g., high seasonal ground water. The underdrain can be connected to a downstream open conveyance (bioretention swale), to another bioretention cell as part of a connected treatment system, daylight to a dispersion area using an effective flow dispersion practice, or to a storm drain. Underdrain pipe: Underdrains shall be slotted, thick-walled plastic pipe. The slot opening should be smaller than the smallest aggregate gradation for the gravel filter bed (see underdrain filter bed below) to prevent migration of material into the drain. This configuration allows for pressurized water cleaning and root cutting if necessary. Underdrain pipe recommendations: o Minimum pipe diameter: 4 inches (pipe diameter will depend on hydraulic capacity required, 4 to 8 inches is common). e Slotted subsurface drain PVC per ASTM D1785 SCH 40. e Slots should be cut perpendicular to the long axis of the pipe and be 0.04 to 0.069 inches by 1 inch long and be spaced 0.25 inches apart (spaced longitudinally). Slots should be arranged in four rows spaced on 45-degree centers and cover '/2 of the circumference of the pipe. See Filter Materials section for aggregate gradation appropriate for this slot size. ® Underdrains should be sloped at a minimum of 0.5 percent unless otherwise specified by an engineer. Perforated PVC or flexible slotted HDPE pipe cannot be cleaned with pressurized water or root cutting equipment, are less durable and are not recommended. Wrapping the underdrain pipe in filter fabric increases chances of clogging and is not recommended. A 6-inch rigid non-perforated observation pipe or other maintenance access should be connected to the underdrain every 250 20 of 28 11/26/2018,7:48 PM BMP T7.30: Bioretention Cells, Swales, and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... to 300 feet to provide a clean-out port, as well as an observation well to monitor dewatering rates. Underdrain aggregate filter and bedding layer. Aggregate filter and bedding layers buffer the underdrain system from sediment input and clogging. When properly selected for the soil gradation, geosynthetic filter fabrics can provide adequate protection from the migration of fines. However, aggregate filter and bedding layers, with proper gradations, provide a larger surface area for protecting underdrains and are preferred. ® Guideline for underdrain aggregate filter and bedding layers with heavy walled slotted pipe (see underdrain pipe guideline above): Sieve size Percent Passing 3 inch 100 1/4 inch 30-60 US No. 8 20-50 US No. 50 3-12 US No. 200 0-1 The above gradation is a Type 26 mineral aggregate (gravel backfill for drains, City of Seattle). • Place underdrain on a bed of the Type 26 aggregate with a minimum thickness of 6 inches and cover with Type 26 aggregate to provide a 1-foot minimum depth around the top and sides of the slotted pipe. See the LID Technical Guidance Manual for Puget Sound (2012) for a related figure. Note that the LID Technical Guidance Manual for Puget Sound (2012) is for additional informational purposes only. You must follow the guidance within this manual if there are any discrepancies between this manual and the LID Technical Guidance Manual for Puget Sound (2012). Orifice and other flow control structures: ® The minimum orifice diameter should be 0.5 inches to minimize clogging and maintenance requirements. Check dams and weirs 21 of28 11/26/2018,7:48 PM BMP T7.30: Bioretention Cells, Swales, and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... Check dams are necessary for reducing flow velocity and potential erosion, as well as increasing detention time and infiltration capability on sloped sites. Typical materials include concrete, wood, rock, compacted dense soil covered with vegetation, and vegetated hedge rows. Design depends on flow control goals, local regulations for structures within road right-of-ways and aesthetics. Optimum spacing is determined by flow control benefit (modeling) in relation to cost consideration. See the LID Technical Guidance Manual for Puget Sound(2012) for displays of typical designs. Note that the LID Technical Guidance Manual for Puget Sound(2012) is for additional informational purposes only. You must follow the guidance within this manual if there are any discrepancies between this manual and the LID Technical Guidance Manual for Puget Sound (2012). UIC discharge Stormwater that has passed through the bioretention soil mix may also discharge to a gravel- filled dug or drilled drain. Underground Injection Control (UIC) regulations are applicable and must be followed (Chapter 173-218 WAC). Hydraulic restriction layers: Adjacent roads, foundations or other infrastructure may require that infiltration pathways are restricted to prevent excessive hydrologic loading. Two types of restricting layers can be incorporated into bioretention designs: • Clay (bentonite) liners are low permeability liners. Where clay liners are used underdrain systems are necessary. See V-4.4.3 Design Criteria for Low Permeability Liner Options for guidelines. • Geomembrane liners completely block infiltration to subgrade soils and are used for ground water protection when bioretention facilities are installed to filter storm flows from pollutant hotspots or on sidewalls of bioretention areas to restrict lateral flows to roadbeds or other sensitive infrastructure. Where geomembrane liners are used to line the entire facility underdrain systems are necessary. The liner should have a minimum thickness of 30 mils and be ultraviolet (UV) resistant. Plant materials In general, the predominant plant material utilized in bioretention areas are facultative species 22 of 28 11/26/2018, 7:48 PM BMP T7.30:Bioretention Cells,Swales, and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... adapted to stresses associated with wet and dry conditions. Soil moisture conditions will vary within the facility from saturated (bottom of cell) to relatively dry (rim of cell). Accordingly, wetland plants may be used in the lower areas, if saturated soil conditions exist for appropriate periods, and drought-tolerant species planted on the perimeter of the facility or on mounded areas. See the LID Technical Guidance Manual for Puget Sound (2012) for additional guidance and recommended plant species. Note that the LID Technical Guidance Manual for Puget Sound (2012) is for additional informational purposes only. You must follow the guidance within this manual if there are any discrepancies between this manual and the LID Technical Guidance Manual for Puget Sound (2012). Mulch layer You can design Bioretention areas with or without a mulch layer. When used, mulch shall be: o Coarse compost in the bottom of the facilities (compost is less likely to float during cell inundation). Compost shall not include biosolids or manures. • Shredded or chipped hardwood or softwood on side slopes above ponding elevation and rim area. Arborist mulch is mostly woody trimmings from trees and shrubs and is a good source of mulch material. Wood chip operations are a good source for mulch material that has more control of size distribution and consistency. Do not use shredded construction wood debris or any shredded wood to which preservatives have been added. ® Free of weed seeds, soil, roots and other material that is not bole or branch wood and bark. ® A maximum of 2 to 3 inches thick. Mulch shall not be: o Grass clippings (decomposing grass clippings are a source of nitrogen and are not recommended for mulch in bioretention areas). o Pure bark (bark is essentially sterile and inhibits plant establishment). In bioretention areas where higher flow velocities are anticipated an aggregate mulch may be used to dissipate flow energy and protect underlying Bioretention Soil Mix. Aggregate mulch varies in size and type, but 1 to 1 1/2 inch gravel (rounded) decorative rock is typical. 23 of 28 11/26/2018,7:48 PM BMP T7.30: Bioretention Cells,Swales, and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... Installation Excavation Soil compaction can lead to facility failure; accordingly, minimizing compaction of the base and sidewalls of the bioretention area is critical. Excavation should never be allowed during wet or saturated conditions (compaction can reach depths of 2-3 feet during wet conditions and mitigation is likely not be possible). Excavation should be performed by machinery operating adjacent to the bioretention facility and no heavy equipment with narrow tracks, narrow tires, or large lugged, high pressure tires should be allowed on the bottom of the bioretention facility. If machinery must operate in the bioretention cell for excavation, use light weight, low ground- contact pressure equipment and rip the base at completion to refracture soil to a minimum of 12 inches. If machinery operates in the facility, subgrade infiltration rates must be field tested and compared to design rates. Failure to meet or exceed the design infiltration rate will require revised engineering designs to verify achievement of treatment and flow control benefits that were estimated in the Stormwater Site Plan. Prior to placement of the BSM, the finished subgrade shall: • Be scarified to a minimum depth of 3 inches. • Have any sediment deposited from construction runoff removed. To remove all introduced sediment, subgrade soil should be removed to a depth of 3-6 inches and replaced with BSM. ® Be inspected by the responsible engineer to verify required subgrade condition. Sidewalls of the facility, beneath the surface of the BSM, can be vertical if soil stability is adequate. Exposed sidewalls of the completed bioretention area with BSM in place should be no steeper than 3H:1V. The bottom of the facility should be flat. Soil Placement On-site soil mixing or placement shall not be performed if Bioretention Soil Mix or subgrade soil is saturated. The bioretention soil mixture should be placed and graded by machinery operating adjacent to the bioretention facility. If machinery must operate in the bioretention cell for soil placement, use light weight equipment with low ground-contact pressure. If machinery operates in the facility, subgrade infiltration rates must be field tested and compared to design rates. Failure to meet or exceed the design infiltration rate will require revised engineering designs to 24 of 28 11/26/2018,7:48 PM BMP T7.30:Bioretention Cells,Swales,and Planter Boxes https://fortress.wa.gov/ecyhnadcap/wq/2014SWMMWWinteractiv... verify achievement of treatment and flow control benefits that were estimated in the Stormwater Site Plan. The soil mixture shall be placed in horizontal layers not to exceed 6 inches per lift for the entire area of the bioretention facility. Compact the Bioretention Soil Mix to a relative compaction of 85 percent of modified maximum dry density (ASTM D 1557). Compaction can be achieved by boot packing (simply walking over all areas of each lift), and then apply 0.2 inches (0.5 cm) of water per 1 inch (2.5 cm) of Bioretention Soil Mix depth. Water for settling should be applied by spraying or sprinkling. Temporary Erosion and Sediment Control (TESC) Controlling erosion and sediment are most difficult during clearing, grading, and construction; accordingly, minimizing site disturbance to the greatest extent practicable is the most effective sediment management. During construction: • Bioretention facilities should not be used as sediment control facilities and all drainage should be directed away from bioretention facilities after initial rough grading. Flow can be directed away from the facility with temporary diversion swales or other approved protection. If introduction of construction runoff cannot be avoided see below for guidelines. • Construction on Bioretention facilities should not begin until all contributing drainage areas are stabilized according to erosion and sediment control BMPs and to the satisfaction of the engineer. • If the design includes curb and gutter, the curb cuts and inlets should be blocked until Bioretention Soil Mix and mulch have been placed and planting completed (when possible), and dispersion pads are in place. Every effort during design, construction sequencing and construction should be made to prevent sediment from entering bioretention facilities. However, bioretention areas are often distributed throughout the project area and can present unique challenges during construction. See the LID Technical Guidance Manual for Puget Sound(2012) for guidelines if no other options exist and runoff during construction must be directed through the bioretention facilities. Note that the LID Technical Guidance Manual for Puget Sound(2012) is for additional informational purposes only. You must follow the guidance within this manual if there are any discrepancies between this manual and the LID Technical Guidance Manual for Puget Sound (2012). 25 of 28 11/26/2018,7:48 PM BMP T7.30: Bioretention Cells, Swales, and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... Erosion and sediment control practices must be inspected and maintained on a regular basis. Verification If using the default bioretention soil media, pre-placement laboratory analysis for saturated hydraulic conductivity of the bioretention soil media is not required. Verification of the mineral aggregate gradation, compliance with the compost specifications, and the mix ratio must be provided. If using a custom bioretention soil media, verification of compliance with the minimum design criteria cited above for such custom mixes must be provided. This will require laboratory testing of the material that will be used in the installation. Testing shall be performed by a Seal of Testing Assurance, AASHTO, ASTM or other standards organization accredited laboratory with current and maintained certification. Samples for testing must be supplied from the BSM that will be placed in the bioretention areas. If testing infiltration rates is necessary for post-construction verification use the Pilot Infiltration Test (PIT) method or a double ring infiltrometer test (or other small-scale testing allowed by the local government with jurisdiction). If using the PIT method, do not excavate Bioretention Soil Mix (conduct test at level of finished Bioretention Soil Mix elevation), use a maximum of 6 inch ponding depth and conduct test before plants are installed. Maintenance Bioretention areas require annual plant, soil, and mulch layer maintenance to ensure optimum infiltration, storage, and pollutant removal capabilities. In general, bioretention maintenance requirements are typical landscape care procedures and include: ® Watering: Plants should be selected to be drought tolerant and not require watering after establishment (2 to 3 years). Watering may be required during prolonged dry periods after plants are established. • Erosion control: Inspect flow entrances, ponding area, and surface overflow areas periodically, and replace soil, plant material, and/or mulch layer in areas if erosion has occurred. Properly designed facilities with appropriate flow velocities should not have erosion problems except perhaps in extreme events. If erosion problems occur the following should be reassessed: (1) flow volumes from contributing areas and bioretention cell sizing; (2) flow velocities and gradients within the cell; and (3) flow dissipation and erosion protection strategies in the pretreatment area and flow entrance. If sediment is deposited in the bioretention area, immediately determine the source within the contributing 26 of 28 11/26/2018, 7:48 PM BMP T7.30:Bioretention Cells,Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... area, stabilize, and remove excess surface deposits. • Sediment removal: Follow the maintenance plan schedule for visual inspection and remove sediment if the volume of the ponding area has been compromised. ® Plant material: Depending on aesthetic requirements, occasional pruning and removing dead plant material may be necessary. Replace all dead plants and if specific plants have a high mortality rate, assess the cause and replace with appropriate species. Periodic weeding is necessary until plants are established. ® Weeding: Invasive or nuisance plants should be removed regularly and not allowed to accumulate and exclude planted species. At a minimum, schedule weeding with inspections to coincide with important horticultural cycles (e.g., prior to major weed varieties dispersing seeds). Weeding should be done manually and without herbicide applications. The weeding schedule should become less frequent if the appropriate plant species and planting density are used and the selected plants grow to capture the site and exclude undesirable weeds. ® Nutrient and pesticides: The soil mix and plants are selected for optimum fertility, plant establishment, and growth. Nutrient and pesticide inputs should not be required and may degrade the pollutant processing capability of the bioretention area, as well as contribute pollutant loads to receiving waters. By design, bioretention facilities are located in areas where phosphorous and nitrogen levels may be elevated and these should not be limiting nutrients. If in question, have soil analyzed for fertility. ® Mulch: Replace mulch annually in bioretention facilities where heavy metal deposition is high (e.g., contributing areas that include gas stations, ports and roads with high traffic loads). In residential settings or other areas where metals or other pollutant loads are not anticipated to be high, replace or add mulch as needed (likely 3 to 5 years) to maintain a 2 to 3 inch depth. ® Soil: Soil mixes for bioretention facilities are designed to maintain long-term fertility and pollutant processing capability. Estimates from metal attenuation research suggest that metal accumulation should not present an environmental concern for at least 20 years in bioretention systems, but this will vary according to pollutant load. Replacing mulch media in bioretention facilities where heavy metal deposition is likely provides an additional level of protection for prolonged performance. If in question, have soil analyzed for fertility and pollutant levels. 27 of 28 11/26/2018, 7:48 PM BMP T7.30: Bioretention Cells,Swales,and Planter Boxes https://fortress.wa.gov/ecy/madcap/wq/2014SWNIMWWinteractiv... Washington State Department of Ecology 2012 Stormwater Management Manual for Western Washington, as Amended in December 2014 (The 2014 SWMMWW) 28 of 28 11/26/2018, 7:48 PM 6 to O M I ' M c, M �' I,, Locate drain 25'from = ROW if driveway E' ; slopes toward street. 1 E w. 700 sq. ft. max. between berms -1_i_ / I I J N Driveway _ 2.4" Slope ` N - -- 6'min :l;i .-g--;;;-A,-iieili4i•-.7.-1:-E ~fig Berm Detail i`� • "��� _f Diagonal ,. -2 ^ "=gig 25'vegetated berm with rib`1- flowpath dispersion 25 I / trench / Plan Driveway Dispersion Trench Driveway Slope Varies and Slopes Toward Street / Nq / !i tij �� / N / / M Max Driveway M i cross slope Slope - / Plan ab� ��b Sheet Flow Dispersion from a Driveway er 0,. I Flat to Moderately Sloping Driveways NOT TO SCALE IbiliMill Figure V-5.3.2 IMilk Sheet Flow Dispersion for Driveways DEPARTMENT OF Revised January 2016 ECOLOGY Please see http://www.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. BMP T5.12: Sheet Flow Dispersion https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... You are here:2014 SWMMWW> Volume V-Runoff Treatment BMPs > Chapter V-5- On-Site Stormwater Management >8MP T5.12:Sheet Flow Dispersion 1 of 3 11/26/2018,8:24 PM BMP T5.12: Sheet Flow Dispersion https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... BWP T5. 12: Sheet Flow Dispersion Purpose and Definition Sheet flow dispersion is the simplest method of runoff control. This BMP can be used for any impervious or pervious surface that is graded to avoid concentrating flows ). Because flows are already dispersed as they leave the surface, they need only traverse a narrow band of adjacent vegetation for effective attenuation and treatment. Applications and Limitations Use this BMP for flat or moderately sloping (< 15% slope) surfaces such as driveways, sports courts, patios, roofs without gutters, lawns, pastures; or any situation where concentration of flows can be avoided. Design Guidelines e See Figure V-5.3.2 Sheet Flow Dispersion for Driveways for details for driveways. ® Provide a 2-foot-wide transition zone to discourage channeling between the edge of the impervious surface (or building eaves) and the downslope vegetation. This transition zone may consist of an extension of subgrade material (crushed rock), modular pavement, drain rock, or other material acceptable to the Local Plan Approval Authority. ® Provide a 10-foot-wide vegetated buffer for up to 20 feet of width of paved or impervious surface. Provide an additional 10 feet of vegetated buffer width for each additional 20 feet of impervious surface width or fraction thereof. (For example, if a driveway is 30 feet wide and 60 feet long provide a 20-foot wide by 60-foot long vegetated buffer, with a 2-foot by 60-foot transition zone.) • No erosion or flooding of downstream properties may result. ® Runoff discharge toward landslide hazard areas must be evaluated by a geotechnical engineer or a qualified geologist. Do not allow sheet flow on or above slopes greater than 20%, or above erosion hazard areas, without evaluation by a geotechnical engineer or qualified geologist and approval by the Local Plan Approval Authority. ® For sites with septic systems, the discharge area must be ten feet downgradient of the drainfield primary and reserve areas (WAC 246-272A-0210). A Local Plan Approval Authority may waive this requirement if site topography clearly prohibits flows from 2 of 3 11/26/2018, 8:24 PM BMP T5.12: Sheet Flow Dispersion https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... intersecting the drainfield. Runoff Modeling Where BMP T5.12: Sheet Flow Dispersion is used to disperse runoff into an undisturbed native landscape area or an area that meets BMP T5.13: Post-Construction Soil Quality and Depth, and the vegetated flow path is 50 feet or more, the impervious area may be modeled as landscaped area. Where the vegetated flowpath is 25 to 50 feet, use of a dispersion trench (see BMP T5.10B: Downspout Dispersion Systems) allows modeling the impervious area as 50% impervious/50% landscape. This is done in the WWHM3 on the Mitigation Scenario screen by entering the dispersed impervious area into one of the entry options for dispersal of impervious area runoff. For procedures in WWHM 2012, see Appendix III-C: Washington State Department of Ecology Low Impact Development Flow Modeling Guidance. Figure V-5.3.2 Sheet Flow Dispersion for Driveways tz 2014 Figure V-5.3.2 pdf download Washington State Department of Ecology 2012 Stormwater Management Manual for Western Washington. as Amended in December 2014 (The 2014 SWMMWW) 3 of 3 11/26/2018, 8:24 PM i I I 0 q ,'I ! f fM�-r, f I 1 1 11 o Ili If Locate drain 25'=c a) from ROW if ,N w 7 ,, 00 sq.ft. max. between berms driveway slopesi I �� toward street. _,_ Driveway 1 2-4" =, Slope =_ i> ....r...\\*,, �— 6' min /ki''i` // ...�I_�.IF, Berm Detail ' _ � �'ic, 25' vegetated_ ��� 1 flowpath I N eh l 1 - 1 II Diagonal 1 1 berm with Plan dispersion Steep Driveway with trench Diagonal Berms is_ , ! I � r !/ 4'/ Nf =, f �/ Locate drain 25'from Q / ROW if driveway K o,M / slopes toward street. Nii , ! / f 700 sq. ft. max. between drains' II 1 / 1 : Driveway = M Slope I._ - N 1�� / ff ��sr Eq / Plan , 6NA / , , li r IQ��9 " f i , c�1. ` f Steep Driveway with l �h�� : , : y Slotted Drains Diagonal berm with l 25'vegetated \ NOT TO SCALE 1 dispersion trench 1` flowpath I \ ..11311 Figure V-5.3. 1 Typical Concentrated Flow Dispersion for IIMI Steep Driveways DEPARTMENT OF Revised January 2016 ECOLOGY Please see http://www.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. BMP T5.11:Concentrated Flow Dispersion https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... You are here:2014 SWMMWW> Volume V-Runoff Treatment BMPs>Chapter V-5- On-Site Stormwater Management >BMP T5.11: Concentrated Flow Dispersion 1 of 3 11/26/2018,8:30 PM BMP T5.11:Concentrated Flow Dispersion https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... BMP T5.11 : Concentrated Flow Dispersion Purpose and Definition Dispersion of concentrated flows from driveways or other pavement through a vegetated pervious area attenuates peak flows by slowing entry of the runoff into the conveyance system, allowing for some infiltration, and providing some water quality benefits. See Figure V-5.3.1 Typical Concentrated Flow Dispersion for Steep Driveways. Applications and Limitations • Use this BMP in any situation where concentrated flow can be dispersed through vegetation. • Figure V 5.3.1 Typical Concentrated Flow Dispersion for Steep Driveways shows two possible ways of spreading flows from steep driveways. Design Guidelines • Maintain a vegetated flowpath of at least 50 feet between the discharge point and any property line, structure, steep slope, stream, lake, wetland, lake, or other impervious surface. • A maximum of 700 square feet of impervious area may drain to each concentrated flow dispersion BMP. • Provide a pad of crushed rock (a minimum of 2 feet wide by 3 feet long by 6 inches deep) at each discharge point. • No erosion or flooding of downstream properties may result. • Runoff discharged towards landslide hazard areas must be evaluated by a geotechnical engineer or qualified geologist. Do not place the discharge point on or above slopes greater than 20%, or above erosion hazard areas, without evaluation by a geotechnical engineer or qualified geologist and approval by the Local Plan Approval Authority. • For sites with septic systems, the discharge point must be ten feet downgradient of the drainfield primary and reserve areas (WAC 246-272A-0210). A Local Plan Approval Authority may waive this requirement if site topography clearly prohibits flows from intersecting the drainfield. 2 of 3 11/26/2018, 8:30 PM BMP T5.11:Concentrated Flow Dispersion https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... Runoff Modeling Where BMP T5.11: Concentrated Flow Dispersion is used to disperse runoff into an undisturbed native landscape area or an area that meets BMP T5.13: Post-Construction Soil Quality and Depth, and the vegetated flow path is at least 50 feet, the impervious area may be modeled as landscaped area. Where the vegetated flowpath is 25 — 50 feet, using a dispersion trench (see BMP T5.10B: Downspout Dispersion Systems) allows modeling the impervious area as 50% impervious/50% landscape. This is done in the WWHM 3 on the Mitigated Scenario screen by entering the dispersed impervious area into one of the entry options for dispersal of impervious area runoff. For procedures in VVVVHM 2012, see Appendix III-C: Washington State Department of Ecology Low Impact Development Flow Modeling Guidance. Figure V-5.3.1 Typical Concentrated Flow Dispersion for Steep Driveways 1 2014 Figure V-5.3.1 pdf download Washington State Department of Ecology 2012 Stormwater Management Manual for Western Washington, as Amended in December 2014 (The 2014 SWMMWW) 3 of 3 11/26/2018, 8:30 PM �} s na Conveyed to the Qj J �jvf �t ease+nent ;s U sxb1RAG� fASLYSA�t,1 JCIV !J f cano AHacrhei.lbepey G?E }'ELEFfKT £E�1�St0tl �� and theH resp6clive OF ` n� Ce AND 1C1 GABt u n She axtetior ten SURVEY TO t; V ►7 successors a+rd nt ou undar and cent fo Vest 3rd place �tiy 1 App oN SKr.' ; ) ich of front boundory os ad/o i. ace and * ) VJJ �Y p�/ej L f0 rnanta;n. ,aPa pj Nl� T 4 x•�• ;n which to cautruct, tS oaduits. cdWes and wires ap necessary I1 ��s • s antorge underground P1Pts• o round ntaunted a9Purfenonces NQ T 4 T.a�s� N •1 R' l '49 4EF 16 Pd Qb ar convansnt unde/grouno r 4 the subd,Yrs,on and other 1�'J � ` s !hereto far {he Batt p1 sarvin9 j• os, telaptrone and other uLlit sen%ca, p' 4Y wfh afactsiC, 9 enter u the stretts lots, tracts h( Cut : ,r -- t iand s pa sha /In9hl totar the purposes t(ee n statad. - ono Is; sewer eosement : ., ,4 to spaion a 20 storm stwar reserved and „ ,.. \-�IONUl1F17f on the fast 2a of tot S& of block 50b �onstrvcG aptrote !� 04 CASE to the 017? OF ACORiES in whist( to ,� .. (•gareyed lace a:NI enlarge the storm and sanita�• ryontain, rapai� tep thegouTh together with the' j �/ ' sewer to servc6prorateo sap times twon thetaort spaces t aaseotryht toenter up A s g0 dnzuta tn htthe Purposeshare state . a AlWC9t�1 rn i anthalloRh2(tofisf Mock 50b d toeChet CtiY 13F Shea not, rs hereby reserved aad conveye feptaee and entarga tht yne � io construct, operat6, aywtfts tree r1gh1 p enter upon .lei dtoinoge swore and Pan u osr Isere n staled, /'/, $ torm of ap times for the P rP \is �y "� ,,,�W r% ,.' %, tht tofS asrd spa b� G �/ r'" �� ' `` ' 'M,/ .�•, � ' \,` Yt�CO \ '''/I' / / ' If• `rI L �` (`( rJ r ,/Ie. ' 4 • '� I/ •,/• /� ' !�' ,\ 1i.. . � V (t ` �/' /'' \ /'" to rI/ ` t, " • • YYYY rr. /5 \ ter' \ \` G_` �7 /,.. • wom matt i.t. ,.......r, ,----: k... la‘Pti IS. \ • . !�QQK� �. , �, ytt \ \ ' `'\L `\1. '\�I'" • ' t\ �� \1 /. �.•`'''�- �4FJ'1. \ L' ' ' Y,IGrf)7 8Y C1fY��'"• PC. ,\ ,( Ir,/ �T.y r / , (! �-��� '{! , \ S0+ r /', .5¢r ii/17:• \ge LTED 7a rirr '' ,! \ 1 ,I I 1 Q4 'f� \ tip 4 \ WI' + / i ,� 5 O. �V I' „ie U % r �.rnty \ ( , ` -'' f ' l '' ��' �:... . \ ,`\`.. \.yG� \LL �r/�''3�jtt�"�, r � %r'• • :" •%\ �$ ';<J.\ ; LrDeorA or fllr -r�it' L \ . y \ ,E O ','. V. L\ `, eft I,!'' .•'/ ,,,! \ \ \ I''L�}.' • \ r. ,, \ - ..:L\ \ `g '4' i,jY..+'',O�f rti„ } Q,� 1 �r \1r.r t 0'1 <311\ \\ ^�,`I \ ►4 ` \`rI'` 1' V \ ^rL \Lr ' r��N�t�7 r � �6. �..\ g4 ,� a 7 \ OG'4{ r,/ % \ f' /' /'' \\ ,( \ )r,/�'' „r\ ` \•.t \ •\ �_ aka' 4- . ..J/} fig ...; ' �0. \ • ,� , ed `4,' �•.. \ \� ,\L \ '% "+' l `� �b,•l'+ V• rr �••` :i;, ,'y 4 '• 11`• \ y6. 9� L V • �/ `'' /` \ \ •\ . . , r.'r 0. ' ,, \\\ems \ ,/'''.,''r' '\ , • '�Nif�+'%'%'),• Y �' \b \ 7+17 4 .,QL, ,V - \ 0 \, V \ ` \ •f' ,• /• ,,-r' ! `'� \A l ✓'' '', /' ;t•f si?<Pr i \� \ . 9Q"�Y'YR� ' 7k9g \ \ • S r'' dN y \L I' ;~ s,,.r;:t,, \ \ _eta?ks! , beg- 5 \ � .se4 . . 5 ' s`�~ GAt+ DESCRI�'` PACIFIC A ���r,�4�y tt Q ( c /'•' . ! C /s0 7k • `• I N PAC tM.•u" .. c2. '\ -'.' 4 gb / , p 2� \1, \ Zk • ( \ 4 8 `'` / =''-' • A: A 50fi, �A car roc ft of tdock orded in volumfingtoO; ,I, ` `A% o. , 13 'e r $ kg '\�` fl\ \ \ a v ecordsof $ 9 ty a/ ` -` P' LCORrr saccardhg to thetP r ko stCoua tY'\ `� \\ ''! +per% .' ,\ �eeO�@a?o • . .�i�,. # 14 tiOG \ ,\ ' ,�5" � r�,r�` atPlats, Pages9 u hk9 / " ''� \1 k� FtheSoutts3� toot;`\\ to , ''' �g� /'' \\ +fig ` v �, �S`g: 0 \ \ \ \• \ 51yypEyO k° ^ ' ExC%41 / ' '` 1 �' tD taetofNesi 3rd5trtct �tan of low. ,,:1 ~ `'\\ 7� ilk, ' \ \ \ \0 \� e ..`•� T4C+ETtt�Rdit on�t Ko. 17 os would ottoch by the opera f,/'' 441 a'' �,. r'� Qt� ' • - \ \ \ l9 / ' I'�I'� Gndat . FD r''',,}\ G o \ \e \ 7 would i£ftx pAGtf1C AODta7(Nst re.-.. ,�- „I , �`� rg \ 1p y1 ` \ \ \ PARCEL �' gtccord 4 a c plot theraof rec°r Caen vale f 9 £`. , / AK pfo{S, p h f i, record: o a hu+ ton: \ ' �'- +` '\ YI' (b• / 'f. ' \ \ \ ei's: throw f Sko4 t tY \ {afs; pa4 g r!'\ ,I''I \ \ a4 :�� ,•� j' 't rJ�� t \ af•P • nt tYosh;nglon. �' I- • `\ rA •' o- ( �(A t t \ \ S;tuati ;n $ta4it Caw _y. \\\ ,tom,../r•r ''I'I, r ..,....\.��/// 111r•( \ \ \ \ \ \ \ \ j' ' Iftkis sit \ 1/4 • "'si. � .'' 'l .� ./'�\ \� \ \ \ \ 4 eltow coP in5crobed S5A SOttY 7547, s.t /'I' r ! \ ' retsar with Y with bross taP- ` t • - Indicates new monument '�a Se 1 1 't '� tndtcaies new cased concrete t�F i `� monument e 7 L:S: 7 �ydt« GRAPHIC SCALD Arm C!3 Indicates Existing f survey filed in votum D. A. JOLLY P.£ . 678^ �R 'rb .� Record od4 of Skagit County. WA. Q,O. BOX 2Np 98239 (350) atSt3 � � ,, I : 204 3, Basis ofygeasine: to� {teca Covpevifte, «- If t00 0 50 lOO of serve s P°9 Pis rs Totnl Stoton �yurytajich t3ATEt . FEF 1I For 8ranko g, Survey procedure;pentaxx r,�UFCY�'`X and Pala<;Jurkavreh tiwN 13{: .. D1t41 . field traverse double measure -• t tx FEE1 I 80� 07 .\ ilitliarlfttxi to 81,4CKS 5Q6 & TO ANAGQRTES . . �' � ,. : c+ttctc air• not t �.� 1 loch Auurrat `s clanalcs svRv i� Coro 'l a • ^, day of t - ^~- "{,10R�HRIf PACIFY 35�AS}� tOh1� w.Tv1 . File for record this S0-M: ���• 27J, SKAGIf Ci)LfNN WASHtNGTON ra ! e �-'S_L .� C1 CY i QF Art Qca�3�s, SCALE: 1"s109' fit „Air+ ,j l4 at - _ of Plots on page �rw' T*t SURVEYOR'SAct, C in volume N jrj ERIIIG r re west of David A Jo11Y �•v/(iA• � CA NO• 107 mode by me o of ,t\e 4 Skagit County WA �(Yj? j�V71+�+� 3g04 represents o survey l �9i '�'a' WA. 9822i (3t3t1) 299- Fhis map correctly P c ditor t — °°a`tes' f t � } under my direction in coA t of thev*egvest otqurrements Auditors file No• n } v nue. Suite 250 8 An Recording y 34t1t R A e f GUJSifttr ` �' of The s\,raz Jurkovich Pa ,urlcovich , s _ - - o.-00 " i Skagit unty Auditor et. 7597 d�i �� Certiticate Na. 3tbl W 5 Rxc Western Washington Phase II Stormwater Permit x !t x #� APPENDIX 7 - Determining Construction Site Sediment Damage Potential The following rating system allows objective evaluation of a particular development site's potential to discharge sediment. Permittees may use the rating system below or develop alternative process designed to identify site-specific features which indicate that the site must be inspected prior to clearing and construction. Any alternative evaluation process must be documented and provide for equivalent environmental review. Step one is to determine if there is a sediment/erosion sensitive feature downstream of the development site. If there is such a site downstream complete step two, assessment of hydraulic nearness. If there is a sediment/erosion sensitive feature and it is hydraulically near the site then go to step three to determine the construction site sediment transport potential. STEP 1--Sediment/Erosion Sensitive Feature Identification Sediment/erosion sensitive features are areas subject to significant degradation due to the effect of sediment deposition or erosion. Special protection must be provided to protect them. Sediment/erosion sensitive features include but are not limited to: 4.s5 i. Salmonid bearing fresh water streams and their tributaries or freshwater streams that would be Salmonid bearing if not for anthropogenic barriers; ii. Lakes; iii. Category I,II, and III wetlands; -.7 iv. Marine near-shore habitat; u,, v. Sites containing contaminated soils where erosion could cause dispersal of contaminants; and vi. Steep slopes (25% or greater) associated with one of the above features. 2'1`2 41, Identify any sediment/erosion sensitive features, and proceed to step two. If there are none the assessment is complete. STEP 2—Hydraulic Nearness Assessment Sites are hydraulically near a feature if the pollutant load and peak quantity of runoff from the site will not be naturally attenuated before entering the feature. The conditions that render a site hydraulically near to a feature include,but are not limited to,the following: t' i. The feature or a buffer to protect the feature is within 200 feet downstream of the site. Runoff from the site is tight-lined to the feature or flows to the feature through a channel or ditch. August 1, 2013, Modified January 16, 2015 Appendix 7-Determining Sediment Damage Potential Page 1 of 3 Western Washington Phase 11 Municipal Starrnwater Permit A site is not hydraulically near a feature if one of the following takes place to provide attenuation before runoff from the site enters the feature: j7 ►v-' i. Sheet flow through a vegetated area with dense ground cover ii. Flow through a wetland not included as a sensitive feature t,,! iii. Flow through a significant shallow or adverse slope,not in a conveyance channel, between the site and the sensitive feature. Identify any of the sediment/erosion sensitive features from step one that are hydraulically near the site, and proceed to step three. If none of the sediment/erosion sensitive features are hydraulically near the site,the assessment is complete. STEP 3--Construction Site Sediment Transport Potential Using the worksheet below,determine the total points for each development site.Assign points based on the most critical condition that affects 10%or more of the site. If soil testing has been performed on site,the results should be used to determine the predominant soil type on the site. Otherwise, soil information should be obtained from the county soil survey to determine Hydrologic Soil Group (Table of Engineering Index Properties for step 1.D) and Erosion Potential (Table of Water Features for step 1.E) When using the county soil survey,the dominant soil type may be in question,particularly when the site falls on a boundary between two soil types or when one of two soil types may be present on a site. In this case, the soil type resulting in the most points on the rating system will be assumed unless site soil tests indicate that another soil type dominates the site. Use the point score from Step 3 to determine whether the development site has a high potential for sediment transport off of the site. Total Score Transport Rating <100 Low 100 High A high transport rating indicates a higher risk that the site will generate sediment contaminated runoff. August 1, 2013, Modified Januwy 16, 2015 Appendix 7-Determining Sediment Damage Potential Page 2 of 3 Western Washington Phase .11 Municipal Storinwater Permit Construction Site Sediment Transport Potential Worksheet A. Existing slope of site (average, weighted by aerial extent) : Points 2% or less 0 >2-5% 5 >5- 10% 15 > 10- 15% 30 > 15% 50 � t �� L�' B . Site Area to be cleared and/or graded: ()Awn * <5,000 sq. ft. 0 • Pie 5 ,000 sq. ft. — 1 acre r > 1 acres 50 C . _Quantity of cut and/or fill on site: _ _ x S o ft- <500 cubic yards 0 eU tt 0 500 — 5 ,000 cubic yards 5 >5 ,000 — 10,000 cubic yards 10 >10,000 — 20,000 cubic yards 25 >20,000 cubic yards 40 D . Runoff potential of predominant soils (Natural Resources Conservation Service) : CZ Hydrologic soil group A 0 Hydrologic soil group B 10 Hydrologic soil group C 20 Hydrologic soil group D 40 E. Erosion Potential of predominant soils (Unified Classification System) : GW, GP, SW, SP soils 0 freQ 0`-. Dual classifications (GW-GM, GP-GM, GW-GC, GP-GC, SW-SM, SW-SC, SP-SM, SP-SC) 10 GM, GC, SM, SC soils 20 ML, CL, MH, CH soils 40 F. Surface or Groundwater entering site identified and interceptedl : Yes 1 No G. Depth of cut or height of fill > 10 feet: Yes 25 No 0 H. Clearing and grading will occur in the wet season (October 1 — May 1 ) : Yes 50 No 0 TOTAL POINTS 1 Gj 1 If no surface or groundwater enters site, give 0 points. August 1, 2013, January 16, 201.E Appendix 7- DeterMiming Sediment Damage Potential Page 3 of 3 1144"6 3001 W 3RD P L. BMP C105:CONSTRUCTION ENTRANCE. G S. I C a >'� ANACORTES WASHINGTON PROVIDE 12'WIDE X 20'LONG(MIN) CONSTRUCTION ACCESS WI CRUSHED (E)WATER METER °� Lo 4,0 ROCK BASE(a PAVED DRIVEWAY (E)WAT UNE (n to o LOCATION - - - - - - - - - i N O TIGI-!TUNE DRAINAGE FROM w u•I I I :I j'S co ELECTRIC/GAS SWALE TO S.D. TIGHTLINE ' vv STUB-INS ' B EXIST. CATC ASIN NOV +lie a — I � tl � � GU�Q j `cs' fa EXIST. G B m < NEAREST FIRE HYDRANT: #664(122 • 3RD PLACE I I / CITY OF ANACO 6TES filL PSI)APPROX. 100'TO NORTHWEST Q o (ACROSS WEST 3RD PLACE it TO w _ V 2 Z THE WEST) \ �-�I� Coynft.. i.> E =T.$fl WA L•�I (E)CURB CUT�iWS Ilk rly Y \' ''') i i•'i.i ,, �■• � � z \___- ��-/��_.'� - r- -�'4E)8 D'' • t I / O__+W v`I I-III ��� 140 -�_�� I -I'- E-- - ,k;\:%fr,*,44 I �w1. ►3totk �+kx-) Z ~-o ` ,OO�- SLOPE 15%T ~— �;' '�. t/-�'�-. \ -r SLOPE DRIVWAY I% 3;1 t Z _ 20'F- BSBL r \\ FOR WATER RUNOFF ' 3- oJ BMP G233 �j 1 `-�-� 4 �^_ SWALE (R2�vtt7t Y"tt.1-1>� C cc w SILT FENCE \_ I i�T'---�I -- 7 otl } Q _ -_ \`N. ;I �� r---/ --=-�7i�` ®� I —PAVED DRIVEWAY C{�Yl.'-s4wS g J u) 0 BMP GI54' DESIGNATED \ I �' \ / /// / . r -140' ZS %� �� Citt Z a o a 1: . // / lj� Ut-12> o CONCRETE WASHOUT / .. ;, to - w s. - in AREA m\ I ie \ /'/ ��J15�`c��� BERM er (� jUC u J < N N O .9 A \ 1 I °.'-r. .\: O ll►,2K� �V Gc713 N�C�'t1b1'J' _ — N o -I I \ \ PR OSE �! '::is `. r VT W Y m ° o N o 4> E�20UIaE st\ZlP T�l2wr�+ z` I I \\ \RE IDEIV o • . --.2-a'-()S 1NPLG..+aT�. Ar SZUB- a a s p csS =I I - .: .I: . o 0 -- ' c?e4 -�'SH 'rFt�J 1 \ It r� .r, J o 0_o '� I \ .. \JCtLt l-G l 7rc. P Lx co ' � 1�t1/41tyn �, ! IrJ \ _ -. � �fUtJ Cb ' «"F L) au o1R-'-'^— 9: � w O O U <Cr ti ~~—&--, -- -- -i / a SILT FENCE z o a Z I-a<X P4 Col. Aix S...slii \~` --�~�I 1 .�J'.`''.' W • in Imil u �& i-z� Grctt � ` - �� �. W iv.. {L.�cvwvi ' 1z*:,wc— To Lt7iV� f-LY 5�1�� SILT FENCE �r � D\T 4R�` • t� ` L� �'‹ AAA- A-� 515Nt_ r {� ) E.� T• 4l!!•_QO !1 r l / ��\-1� � ti �4I G�St 2.-. 4UZt''M 5-. ��A„IL �l-IvI( - .2� c_ 4St5S- k !A 24:4' , / Y I / - ,. 2'.Rg`-. -B -150' � I t3m� T 5 I v 10€. 'F�21�s‘—PerAtt,ate tZ � SwJ 4.lo,.se`� I -— \�� ,\ '; •- \. c,u. 9t5�s GoN1 `f 5niwbtJ -£ G�,cv.e,a-s c t / ;^ �____„II 1 ;� I•-BMP C11'Y CONSTRUCTIOT SITE PLAN LEGEND m 10' \ ROADIPARKING AREA BMP G123 TEMPORARY 501E / — - ,-Jam-_41.._ -- __ I _ �, x I PAVED SURFACE Zp a STOCKPILE LOCATION' COVER 6J/ J� I / / \^' PL:19.95'N b9°43 05\E _ - \ I a a STRAW OR vISQUEEN f SILT FENCE Ill N `-� '::. Z - \ ••• GRAVEL SURFACE ILIJ AROUND DOWN SLOPE 51DE(S) I — c'- `' ''' \ \ _ RETAINING WALL w 110' 4 �H - ou.i W. 4 STREET'ROW AS NEEDED PROPERTY UNE `L��— X \ .540" \ 2@-9 — — — BULDING SETBACK w \ \ 1 \\ �` ���� UNE OF BLDG. FTPRT. I'10' 16@' LINE OF ROOF DRAWN BY JAD PLAN SCALE 1" = 20' /\ SITE PLAN - UTILITY UNE DATE 08/21/2018 REVISED 11/09/18 NORTH SCALE: I" = 20'-0" x SILT FENCE ,ate tx -1 S t�•�2.NS?? 1JES-c P' R,p►c c Start Here PA.L.E. 1 2 Does the site have 35% Yes See Redevelopment Minimum or more of existing -- ► Requirements and Flow Chart impervious coverage? (Figure I-2.4.2). No Does the project convert 3/4 'v acres or more of vegetation to Does the project result in lawn or landscaped areas, or 5,000 square feet, or No convert 2.5 acres or more of greater, of new plus ► native vegetation to pasture? replaced hard surface area? \No Yes Yes Does the project result in 2,000 square feet, or greater, of new plus All Minimum Requirements replaced hard surface area? apply to the new and replaced hard surfaces and converted Yes No vegetation areas. Does the project have land Minimum Requirements #1 disturbing activities of 7,000 through #5 apply to the new Yes square feet or greater? and replaced hard surfaces and the land disturbed. No V Minimum Requirement #2 applies. Figure 1-2.4. 1 Flow Chart for Determining Requirements for New Development DEPARTMENT O F Revised June 2015 ECOLOGY Please see http://www.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. sp-k_ Does the project result in 2,000 square feet, or more, of new plus replaced hard surface area? OR Does the land disturbing activity total 7,000 square feet or greater? * Yes No Minimum Requirements#1 through #5 apply to the new and replaced hard Minimum Requirement #2 applies. surfaces and the land disturbed. Next Question 300 WEST 3 e° RAc�. nh.c,E Zak' Does the project add 5,000 square feet or more of new hard surfaces? OR Convert 3/a acres or more of vegetation to lawn or landscaped areas? OR Convert 2.5 acres or more of native vegetation to pasture? Yes No V All Minimum Requirements apply Next Question Is this a road No to the new hard surfaces and the related project? converted vegetation areas. Yes Does the project add 5,000 square feet or more of new hard surfaces? Yes No Is the total of new plus replaced hard surfaces Do the new hard ♦ 5,000 square feet or more, surfaces add 50% or No No additional No AND more to the existing requirements. does the value of the proposed improvements hard surfaces within - including interior improvements - exceed the project limits? 50% of the assessed value (or replacement value) of the existing site improvements? , All Minimum Requirements apply to the new and replaced Yes `---► hard surfaces and converted vegetation areas. Yes Figure 1-2.4.2 Flow Chart for Determining Requirements for Redevelopment DEPARTMENT OF Revised June 2015 ECOLOGY Please see http://www.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. MR o c C7 Date : Wednesday , October 24 , 2018 Project Photographs ® 3001 West 3rd Place Site Photos for Applicability Requirements 3 tt s se - Pe r k. <. p4� Jt b x , ' )i ,,� xay g sl yry • cru \ triip, • ,-- - • w K G <yy t i _ , ` ` �i4y .�a : t +s ,A ; f , ' �sycG`t �'rS a ',4e�9Y.., . �.Ys _ . . ..„„, , , ,,,, ,, � , �� 19'11 ���0. S r �Siioxi� }"�� h - ' I `v r .E rF` _. .. s.3 4+' enA 5 ate' v i tsx ��,/ �,at>'. WNW 'c: .frl\ t,- ^ x y x :t�'' t r: 9 f ��ct i > .g.<A .A W � 'e 2g.x 1. .� �e .z\ Y — _ g`�`�-` (+tAr-- 7% -st.t 3Nr+ 44 lv >.k`� A/'.' yf �'J„4 �".4f 5,r ,. 1'6- 'S L ✓�s `• ,+'ENS . 1 k`i. ` `__'<<�{!!v r' ^•,„ �t,A. can ;2' t % Al:- r/r, VA.< <• /1 t G .. . r v r q j _ - �� �� 5 p. ft { yam. �jF ea dy {5 � tin :;6:t'4 a y, .1k, xfi}� ''Wle. ,as-, zee ''.. 6 1 y`.- z s i J .-i [. S >34 , 3` . 3�1`Y .S�v � .73` v.; sr -,,„ ,, ,* ��`sn' r 'Z '_W • d .. ` yS '� t T.. r' _ x le F r 1 (.t`t j S• .r 4 . "i. {"ECG' -tas aii. ! F„ 1 < 6c. <, 4 �> "`�� : M F� .�\ t ply.> l J ) � �'V. ` „5+��4 Yx y� 3��+^M A '/.3s d elT4.GS w�' .eYxtlj IS ( ✓. ,..� r� Sx .4- r `>e h 77j�^ ..:i s T ' vbs.;-g 14i4 < 7j5Vv }3"a' ;`x' "^`3,f `r`41 Y r 3 .r s . 4 h 5.:x d.y+'yv^h.< t<a` `ur + ° ° ,y y ',t. t< < 3 r tnr o. ' •_ - -r : .ea --c.. E ' t ,,,,ritf 'ti "/ . T..r - �$1 4 A•ix ...ea.�s'. a �y i � ` w � ia, YX ? ;¢F t �� 'Y y -, ° f. 'aS3.1:< Fi $ Y \ : \ i 3, . J 7 ,. , r,s, ' 1,7ers Y 7.l c+ .�c t I5 , r cii tit'. a..r.:*79:z�V. .€. s �1 � <` �,t4s :( 'ham'>4M e(� y4t�r P T • .� - `.v s �,/,;s1t 74`04a> C. 1 r 3 8i 'v 11 /qq"a _, y . . �, is ky Y ' l t / 4 � i. � Si✓-� ��(�t rf ny`� t j ��` 1 "' z < • .G TN�3>llJ vs.` S< fro F4� �arri�'. 'i S ' f- rc < 1 *4'� s3 74. 3• 9'4> 'Yd , -5 rv ' yG• t, Z-- u�i ��f<-�d� yk$ xni $ 4j1"S1' �/p! T( `' ro� / jab I 1 S / . x ... t l t `iny, 4�•pS�3P'.LA�Ey< ,`1`�'.a / �, ` X�i:x "c i =f s n s 3 . ,L _ ;.a a f �Y la % `� ryq $ b,6- .b4kc'•�o' .>'"<-s�yM' It `rtXW� SYr Wrf a7r . ") g . v>lL�� P L.}, . 54. Q t � ` ,, S' % / •4.5 Stationing : N/A Location : 3001 West 31d Place Description of Work: Existing site conditions after the Clear and Grade Permit Bid Item Work : N/A Photo taken by : Steven Lange ( Engineering Tech IV) Page 1 of 6 R:1Proc-CFP-Dev-Lange\Corr13001 West 3rd Place110-24- 18 Project Photos .doc I •r •it •ci; •b, t •^a< • •rt"4. ..Sn4 r'za"�k 4.�ji f r i , % 'r,�I(3` }`.Y' b yr . �y a i toe? 5 . .Y ° �i* jipC*. •-S + "at(a '?V a'1�'/ a �y + Yrn ' �'{ 31° f t � y'!f F ' ' w�J J A ' , z y� k 0 z� d . r yo*'4'A 3Fi' �S .i �$4 '"l t-:lQ - 7� r" 6 I. A. ' .. ;s /� a) 011i {.' iVH` �,.r?+� > � ,y tr • .*n� YY�� �'i� y t.�i� � °�j``'`� �r� x'r~ �£ a} a) ®/i e l 3+.4'( Mt. b l a S' �� -p�--�� . f 0 'a • "''k:. v 'Ilk. P' eb, t ,p, 5 > ' - a,' tssr /i r. L1J ",C,'t {4 �T� £ y� n? i yrq� ''`\tNifl L+ a L 'F � faF �'° '� !`ttiry „�t, g• :' s_ �'��T'9`,4 � .,v� I @ _ C�qy�"Ppl • x ]' { �q 4a+S Y k ..7 / D CO � � � J < vn .ka w?�t E a �., tyilT � t: ,,y9 Yt2k,'ti':,� '� {�Ngy���� • �� 'x �` ! i�., '�../ 4tl i'x\�i i3.a N �.�'. +"fj 'x�t! ,o.fir °i�'1^ �F•'• �` �y `n e ♦ °�y � +7 3 •' if. ' • r 9.�.. o O /�/��� •J • w ?•n�� \ � r ��{ 44 �it� it" a=� Y l�I . rM^ r��py t <SJ Y � i y.�.Y� �y. �* � JF �� pt ` t f a ° f • t�'.' ` M o % _ ,�yyyt ��. 1�,`;+.�� �'�, 1sy� \ � �9• `j, s� h Ec�a •j�`> 4`*• .� •s ' 1 � co CL �{. �"� $� exx:� r .� a :�i�, �5 s£ �� 9101. �t ' `r bi r `C'�a �v"' , S/�...-(("g�°• '„ . , � U • �j ♦V/�\ .�" .? \ Y. < • + T +�3 it.•rSh A• �6 •!' '"11i4 v% \ 041...t... A'E'b 6-�n. �.' y F r ct: nn F�, £ t i ��ry✓ih % e'q s?t.... d? x.'Il ry. . t ry �. W U N of v ? J s • •agx°? 34� '' S ° %ttj eps • t !., l CL Y y ' � � / " '•� ��.:. 's- ,.-0 x -*f of • < �: l.J cy a..1 �"�\ a ,"y1 °Xi ¢ •av 3 /�tt,sq�.},., •aVv da. „at'. x t' �. (1' Y rs re V�J O .....A `C �g" L. f ��x`ro,T,Q✓�,`�{{ y\• < N .w i• i yJP:�e ,,yt '� YRh°..,Pzx^'•. r l d ' w.r viN' i-� n r'it, 'r3RY` c\ it A.2 r ` } Y i � A '� s35< 'lt .Y'�'�i� • `�" Y•�3r / 5^v'i� o (13 CP a -OJ : R � a y yr • a a r u � a a (L) C.) — S �� z vI fio { '3 a� > a� t W YO CJ U O ✓` l abp y � + +W. ) � C }�S Tjbt Q) I 2 J •' '' `!h ` °d. lt; JY.br }<y Y ?u r ° • 7 • $n Y O II ii �\ Y y\ 'f+ } J '��YY,`n. ' yi • S 'i ..�aJd Y.r . >n� � yt' Xal¢\ j r+„ < ! ' <� . `,,i� lv '.p \ rt+ w` " \y �r/1�11�` / � ".,FW >v 1r"'A ni�a GY w••'r > a 7 �� yy • +� n f I V s a,, y. . .';` K ^ ,4 :EY' ! •a IL. 'xJ r' . y, "`r. t r{ . . r.rs ;AA. :R: �S� tt � if“ ‘at °. n sao�.r � � � }i.� s \rC ,"! ' t tF' r sy Ai..? Y � I� as r ? ""1 ;L� )Y . a � iS*ro. �t?. ; �e n �7 kK¢ •u. �2j J Yr. co _ r 1 C w r ` �( M a`�' ' .T/e� 3"t a �'1°`v✓ 'F° �Psa r/ Y 4'� 4,],.f Y F4 �E [n rJ ` wP0..w { ,( ry�� ��� e'_(,y� if'p) \ 1 •/�ls� �/ . 4 IJR 'P. ) N�.".y���?.JnJn � t �A Ti'/1�• �yl+: %'t Ct °K+ E�L'°r �/ to VVi .�x r x , ,ar`Cly�„�v, • }^ -Tt �Y .,, StY� ., �i �'ji F> z1.�i.\ 4-0 • a ., " 2 f mow+• x �.. "f.V�, �ht'�/"" .s� r3 `t '( ' 'C `t F7xs�'� ` N Tl' r1 M1 y, : 't Nod i 3 �'x 'S r ' r `�, 'x. '.t. f ' vri � •gju„sr<) StcFfa !as • v7:5V Z�L i°r '�T\ rrx •r• Y ' �„ � »�`ae ♦ '' r "'f °:tt'i,r . .. �`r `R' `\.` - O CD L t • qe "' - F'�a' x /Sy, 4'✓" ,'tr�\ -.- i" .. �wr e GM 0 '........................................................ ..�♦ r t u Ft. " W,. ii' :. Y t+.yr Ci a 0 tt�..< "i.'v°v• tF�i:S' " "vF` c' „�,�v. �,r .. 3v\�"la :•FY'*in Cam'. V< r.:'< �3YJ'°`1 . L a1� • " $ ) .7 y. w 5 n Kam`F �c�� w a-- `s /� %. '* I .i t la\.. t ` l° of ft;/F! �A...l.y,. ` ;' ;7Fj_,'J y�f£`� �`r° \ i \e \{/ '�� �L � . .i�iY lC9 ,eR. S t'•`�.f 7°. /i )� <S; \ a ,Ry rn a /� 1 '4 hS`v`i • (rf� V /V� a���ZJF ° •` � a`Sf•"amp Sr" ?rM SIC !F >' '' �o Y£ �;yy }.ate} z� ^ ' �q CO y ® - '�K Il�t" i Jx '">M ^ '. W`o el ft it '3 w ' } '• W� N r 'r r'.A a) JC.9„ai�n } 7 F�-fC ;w ! M r • ?''t�,i y ft . _ CC 4. ^, ® 1 �4rT i,'�a`�•e'° .� }.7 �a��?.!. { it i-•,�wTT „lc,h dh'd n n � •�'!� \\ a .vP.a ayw i� 4 -, CC W .!. .y.°„x' . 3 s� 4� �' s as c r'> \ Sye \ q a (r) ,,,�,� w rqt ✓ \d°✓ -� � ,. t yStk P.tNR • �F °4C{ C` � � 0 1/�p r �•,� � i� a /yxS� `}a 4Qy vA � >�° ! V Fy C "Jo_(' `Y`� t <1� r I I I EL c O CO U 6i Ii�'.* 'dA i`�,� J i'g ' Y� Xr \. r 7 .yro �i � a� t✓ o to F'��y` 1.�,y \ A� -> t co W pp O o Q vtt' < a t ..s;y . Y a I'Y S y ° `t iJ e . >W• 13/ F f"M 1{ l''+a5,',' �'Y x l t-T tr .r a i ""--^' ....>.y a < <. �, � 1 , t Co ® Ali f.r H C lf• i C \ .rF^' 3 <a,a .pp , 3 •' S K SSi�, 44�,��9•rF d \v c . 7Pe (!J • ir4 ,4 :}(,:, v• ,n .` r �V j$ '� wY \Z a N } ,Fcy \r \ \ �� . r ) IrYt. , v� w>>\>�xC T(A l''xgt / A }.w.i.:..... .0 i 1` t \`�� ` A p� 1 { 1 *' r.)11 LX ) �• r Y.y1'i •`; x om' `� OD ® iPd U a. ` b)7 •x H r F h . ` R h,} b e G 'yrS J/''�� Y k to �� .N`�4+. 1p < t > '�6M �Y + • i+tiQ te? {J_ S' ti ry y1Y (ysa. v : ntSp �T i Z # ' �Su'u'+``ll�,>>.T� "t� ^.l•,y y \ 'xT' _ Fa ttg, ` r. ' • �S `y; tr -aS . . C (( ) �`�� '3 fi Z) <$ai.1�\'\�, j • 9Y . drat" +�1 �\ �< ' - (� vCO ^we \v'i 1: ➢ r ? n ' i ° 4+ F 4G a H.. 3 , i r 1 i J t' a 'i l �> _ y' 'l v•\a. � ..r j i p Ff a A. `! {• '�^' . o dA tea. `�'r C . ! t r . 1 \Fc �.Gv "� b L p> t 1 F < te a d i 4 /� I r 1� vt f x Pn,>S2 \ cL � � > >i t t r ov < V `+ySvr r (ll d * < tS ` y \`x .ttc i{� `. ' 1 > v )Je° �. • //Yw�aP ��JJ4)N r IFj'�'R',{yYFR� b /�J\`GCS { \ gWQy($�.'Tlf, ' < ' F� �t' Y • ® �. CD LL LI- I`5`F){ 1\ yI Tr (>"A Y /< y ° �: 3,. tC` [ Ty J } '( t`5 .r F t..lu 2 < y 4 ♦ i .�r S a i A' ° . \• w'• c • a � Far � ,� w j . h.41 L aj ' '+E ® Yi'Q9� vti }\Y �� /+' d 1`, ' )t },iv Ft°� . k4t`/�s i� ^"Q4 Y >t'* 3 �� e_ •m ,i�s<ji,j.tAi r � � ` r Y Yt f> �`f 1� I 3a " b CaeO \ • ` F' ® `",TD 0 O fl+��.>'f 9 ��yl .rid s�' { s5°t°1 " 'a F 1 n 'R^ Y< 2>ilYtY, i,�. ► ® N U xr;( i ,q�fi ) • .�?r s\ a�/ `tw?k Rod`$ s I. } ny. n�.Vish �z y 'k� �a�, $aS ®^Ca t '� k �:�C '... 0 ` n� Y i•F ta �\' ,n, i y°F. 4...3 ® �/ r.3m ^ �/ .r r'II 1 /. tvs A", ti )`, 1 • ..;tV • u <v j' t `v'?y. VxCY E. M�y� /^� LL L.L f 1 4-� ° i ' '%.. :'•,tf ru f, . '.a Y »„ �,. . Y+.. Cr) o W E.1. fr • r " r9NvR c�, l ( u�i`Iti,\ i7L\� ; r \< n) tp i � k a.1i ) rr4ti 11 M " tee r4,4Si ' ` M`icIX ,, ^ � ' '' t. i r i +.p ' s j 1 a• g• 1 4 • 1`. due) itAN.,..{ r.}� „ 't yr /,fAlt 4 Y£ .'I kSG 4. A : v �'' V!a r irr i >r�! 5. x� iat. • \ tt / \ u1 �' i la'Y„3tat W.t ✓� `lv �V ��jjiY'yM Mt � ♦ i—i • l S' 1 S • 1 C 1 , t j\Yr • �A L Y { 1 i '��,+ �� 1 R..v �. iaQ y ), < "A �i y • F V L yb5ngl SFP VY q,�X' �SY te✓ CO73 {` C > „�aft < S e,� y�x{, r4 '1 eN ` \V �U )C 1 St' t/ �11 r t - tMj ,i,�?i �` � !^f �rFa • S—. (�' u tyv�a / y t�[Y' 0�1 , l r e C _ W i U ` FVK�y`.,i1ty i t _V. _.af,� r1�� 9 V 00 n A '� � � � t �^r �. } t1 � � < � x{��\� rk widtxjy14}3 • y ti:�t�� �q :r}ri t yy��� a Y (13 9w „- Y"r0> -iCx:'Rs` /"t' ! t 3 ^' 14 . cl�d w b'�` fr¢s a( r ^(tl a' c Lb �� • TN 4 .. .R �.�ky • y• Ti\ i. b5 f S1 C. . ii f<t 2 f I:is' � Yy � � v ✓ p U • /(\ '{� J« �' ` 9" • 7,���� Jai d O 40 e2'� l ^ ' >, VIP � , <i""` }tid.�{i� ' -0 II— w d » it s•!> 41/4 ` /gJ`r' 'et ' 'r > O ( • 1 :.! 3' rr 'iv' 9'.✓1 V ya '4R.. a v 'rt a `' rK N, l 4-0 it �'1t • ,:,. It' '! d ri J <x % ,tl ��5�}t "}s�a:a •^!+. a s ,;i 6t{, q Vx 1p x ✓f /� iy"• < "3 9 •QF' if��d P �' • yi` ;+ r1. 9 �rtS r'{+ j ✓< 0_ 0_ • 'IS r i C.0 _ U • 4 a I L k �w ''�y t 1 • .%ly 0 co O ,c14 f' r'_... a ' tip, "• ..�. }yA� zy' f• 41/YOBr ` f yS � : �S /� +�.{` y� x' ✓E Yarl ry ^' `p`v"Fgg > "1 �, �(L, i� �,tpR� CD `v 4�."" �� t` �fY 3;'�c(r4Y i. �41'tr]��. ]`�g�M1r�' a0µ $y� �r.. A ` NY' 49 YVI (1 U � tj? [t IY � a i i Y Mg~�� o i �9�: \4 � j . LCOL �j� �}S l rr r fit\ a ri$Fi S i - .?a lJ' •3o c.t t yv. .�C) - /�( vJ Q » ^r 1 ''>66wYr rya `a a � +Wt': �1e ,. t r-@,y LL<I r'j,V '• r gv r "J O 0 CO co \�j �j 1: It r` t� r \ xt • �'t' �..4 4,�,•f • {� yl£ E ^jp i 4—I �l0i `n �'` _L.o;-. � 5 "T 1 "'C4 Fk; le, j7 A� 75 .Sv i) o �.9♦ , , l • t 'i (f 't}a,.;ike r� a .13 vL • t� o v.C.tr \ yet \•�a�" y '3+{ � `Y"tif t• o W ♦�V Y • pa, r4 \ 3Sp,. 4* $p1$ ; O JF( vr,.71.6r, I 4/41 ((���, }i .{� §F'? A1ey pv.,b 1 F �. ; t3sv ...a. • Irk �,'NV (J) o / o p'k,'/ f 4,r tp R� • , { t ��n • j • r•s• o O r4q't< E. < �S hrr < p. Ji✓ r� t '1f .2 'D c d( I ��1♦♦ iat' t rr�} > a n LrYs a 'yr \ t < ? ✓,�,. • v } W IL.IL �1 r ISO t f C frr a }a n' O -+ a :b rC V .[� ��� x^^ L ` /'� a •,fir NA �y; w j k. dr l+ j ✓,�� �� f A. S rA if f{ � f�i�b` rt+p' �f L `k u` 'f 4' t '�' L • a tt cEsU CL .if'r / p� J e� afYi f ?t,£ i/ + CL:" ✓ �j',, •I 1 t�. ,i/� i Ae. rl CY)� w a O CO as) l i a� i V ? • I r k o Q • ` i �.` t E� e x,y 1• tilt* ° r�rd i Ips �' ti �' • wt ti ��g • • \0 CD O—, a°y o > yy,, >,?t C/ \.'Li j-/e Ara N' .i��lyeAFrt9 < } I 1' ? {.{ (0 1_ '~' l t 4,.. r vT' atrD ✓� 2.r�rV � a M !/^ .s �a '� cf. :%��rc�' A.. 0 t vft. V! .� (L7 yrr �o�• ry; qF £ y1 .�Jii'f' ° : a@F6 '�j Y y .K• 'tit�5 0 �„ (J) re e t• viX eC!`.'✓.yhi. 6r dY▪f'� ! 9i rrt ° le ' i )kf iY a' !a l S ' rt k rd f9 0 Rt�(,.f i ... 4/K.at f; ') ' .S Ir`✓ 7" `�l of t �« > ��iY n• . r ' r p [< 41 Y Bj�V„C (J,JTi^lJ N'efr,� 14��`' s t v ( '4f '• Caf T �r r Y > J 2 ✓ i , 8n1 R .� ct �aS� > �b 4 YWs[ .1, x t 1 t " ' . { tlr r' f ?� d.6. �4 Czy r> , s-yt' ` M+T, u.. _l I - t30 ) Srx • j8R ss 7 „) �J� S '�r 6+ io �s3 . `la �r��. vt O CO LJ_ Ei ' ,:ef ^3yt�o� )'.b° ' .41 rt t :F .y/f'r) �}h, ,)Q r ,hs. r a3' vd r, '�, C v & a a , I d n �.laj 1.] t> k n� 1"Il CD ✓., . r;i '' "` t{ i 3. °( '' i ;AY t 1i7 ? t'` Or y ,tN}ty? v K 4.�00 0 co 0 • tv ^� i. < �6. �:�t n i Av r .f 4 a � s• k v. , 2 � s�7 /p� o_ 04) �,''oZ? � t 2 Fr 1 ` .r: v ff?' t4 r y tit' i I ++ }, pct'�) »"'�,� .} ,p� ) �¢t pq r�� rtVg 1A ^ li 'Fr. ( 'i fp. 1 a yr } rtb'' ^ 4 Vi L y)`r y °{ �' Yyrt. '1.^ ® o.� y; 91' f• F' >-'ja. <!' } .�'lY 11�i • s '�' y n v,�a.,i, P s ,�� t ykt�l'�; r v) h4)S' •� •sue yiq o O U • K r _ •�"! `�yn 4} "'4.4 `�`t"flax, P t `, Y h 3r' Jo .�.t'rir x ® .,y„� q OdA y �Y,✓La , •vat yk t 17 r r tf . t t+V t �y4 ". 1kY a ev M1p'Mp 'Id �+ CO AtirtPvi • �e+f�i w :r � \+C1'"}' \'r . ,r3,�.�Kt,,`h• . �'rVjS.•51 x e .i� L.r.� kr{ _U �taL �'la a 4-44' • ? !' ii4Cs l§...Fn { Sw �^6. . t ...1:. .v St': 9\l�k1 e��' . P3. .a co ® l�i�, ES L.L , vim : I, k 4 . jr 4% � � 5�. -4 I 5 ,i4Ja4lesti _ i �• }'_ (1) ti c dt.: tis. .( N ii . /�qf p 1 W lt U .��• I05 L(V r .:` (7Oo ^^ 4 • ct. r i�P 7"' CO U VJ Na k• 'f >c / ) 460 0 CS �, R 1 t y l,r - �tia . (�� C� l T� p��q ^O Y 5" vJ CO y ` " ' , % 1v 'S n o 1 - �• k r M;d:: `tiC� r y r ' 0� '› - • ',:q') ' 4 ..i * #.* + ' NI jIti Q •t / a) ii 0 ca�t J kid? .}..t ; i Go r U) iii 73 Ca V i h •4 ,yekt c/) w ,gypcp 1 • tl*" ecc 0 • ® r u, tI ' rr. , .. ` ., , i � p� r xLr r ' , Q) ffi.. Q 0 VJ Q- a r f t :+ C Ct t , b O ® J i ® 0 , b , r: C �7.1 q s.Z i •r w; r �/\ t "Cr e "! p A Y� V " °p Q) CO H7 ® Ca � � lib �e1 , \� "wc.�.c+ •G Yc: \�< :',nit y, j ydee �)' 8•41- ,`:°fit^ • /Se\e qy " n, Y • ,j 1..h •1 F@ y\• t'M1�A• �, Vt y„ (tJ.'^ „ tY ,4,rte�� « t � d e .. .n '''`S` F4 ,i F YyrV'' 4':, .. it, a h t1a a.4. 1v't 1 ' f vS l 1'i `'a '. S• '�. r,1 .,a Y inky 11,04 $ , -4x,x xi- lr•. �s{ y 1 t t T+F Y �. +3'J` c r e 4 _ 's. p�, Y h a. Y oV*C`"v ,r z a ` 4 }+r" n� '�z. ;\ y:M t3'- °„yi��. 3 (,tk>,�! .� -d--r ( t a v �ii.1. ) Ct h < cta` ;aj�` e3•° t'R t .7t' itlF"` ro Q•;� I -f, _ • x Y 4• ' ` a tT 444v r S. ail} YY 11 1� Y ,{x �.».� r } y :5' (\• y ° S. mt $ °• �Q`::. f .( <e /'1', `'�i5; L ` `9.< Y,f �la t w le r\ r ter:�. Y .'R.� tr W • 1 '((^iq,y6 l ♦ 1dkar''' ' S f v Y S< 1' �•L�S Q'.\ et-, ^ //���� °.N('!'�1) t# I! R,.y,�' ^l. f{}ft •is te� '� ' - -,, .Y. O t. 4 �1�� W ta<.eY.` 1N a;. yr ,n rrx f tla, y.�r ? rz)•cef �` e J � W j� a '), i h I. ..C!` "�.� '" •\- lie \ f 6 ' n t Z; c'' ? e V i di +T is• `� CO xrat , 1 Xr \L SV iJ y \kd..u.: pt\ ....'' `� ( (,h n N r+y�'al Y • x�ae'v "WP4 • nY.a�` n7 'a .1 �r� S f��r'd[l i s�yt Eyai. a d /' �', S, C e ( RRl ,.- �+ r� �z t. t �' t rA1 V CO n- CD l 3ro'l qr} , ,''(yf( r I ! �'f , r' ', 1� a� TS O "L7 �` +^Y,sL tr •k. P r. r ..• t�,'/ ''� F i%t Li? r< "...NZ; ✓ `+' ,�7'! `C N � [VI/1 x� y tr h�.� /� f i� / �X^ • ha vg yi Ave y ! �1f f\ .< 2:�{ i! 3i� )r v , CQ .ft �4.� + - l .e f!Tr� '+'0.0 }Nr ///�y� • ti < >$ 'I, •�fy •( S <,&� •_ . ( !"• .1. , � rµ �2 . y�'pf •'1.r � CO VI TZ� Kvtl a y v� '� +F • . � i � �} �yf �l !'tlr +a. �. > �Y '3 ' y '�3YR CD f1 \.J • r S • j tl V4 vit a 2 A• 9Y /,Mt O f4/aw�(.r: i �' 1. J ,r' , itz�! ) j. _*ANw "e ..,ttf( a <a > °r254. F ' Y A'n� ' n1y � /W� cn .r\ �(Sfe.vyEi . L�`a �q I r iT j 3 ! { r _ �p9X. fi G �t' ¢, �v J r t` Y 3'W .1� O .AL ^ \ b,"', "" r<' (q3+E y3 >f <( M At,* i r 3 d t ,,.` "F' r?<'sf. s ® ` /1 f�'pt.�,• <r ''i� ' � X. � �}, � M. „`'J •• frp1 r- , wQt r1 �•1fy�r• (� 0_ S ad Y �i' �O 9n yC�. a < r, ' f I Cni • •• • cll •te • y • ) ..4�a�� � y• • ,,y a) /�I • a v .� 41*5F< t4 3Y ., � '4.„„., , ,• .41 `ff. , r\ F i • Silt. !. . II .4e• /0 lV �/� .y�'1 �, .�i t' t f.i 4' ' a � r fyg�1y111 ; TT Vt)'d f� .T• . <• , i rc ' t'.,,�tr F ...f.Ayr, tV.�tr' & if Y. O y/ 'h(,A`�, -\ _;> s r rx� #'T+^ . ^ r 'f f'. t�,q� ` . y7 .r,` ., ia '(""`' t}•' s'x` . ^� ` C+ �g, � rs.,^ ) ,� as ! r, �>�+'f i• :A�,« r}>'� q.' \ ,t•'�'Ji ," ;;.z •� U �EJ L t` ` 1 t1 A' • �' r t �, ..sci_ vr > r o .lf;� P.,k ..^r 'Q { � � �.i� 3�1 • Q i \jAn tic J `<.1'" � tl' t el <' Yt vg���'x •< }� as a ` fit 'sX '3 �J^v�a{ n°( .Y' CD C �/ � a"yrv'• 1Y a�"'-vy. �'t- ),�s ." 4 ; Y X S );�' tl t ' i$ «va \ > t (�� .f.J °v. ` _'^` • ^5, 4 °•{b�Q�+a�,'`s" c a ,.> h}h�Y''�...,x �' 1 • a ...me "O V/ (n `'�',rf'kyywAj, r Fu♦jle1 f etc, f 'aa, •k-Mt41 4,1f• t. }v� �yb 5t rt� en Qs��q O 4x' '� iY' � •` ,+ 'a �"i y (ve vY,c tn✓'f' y ' 1a .R�14 ar �, '1'Wtt�"s< 4J 9,1// M r � R 1 ... ,r„ J'TF' t'kJ ,,�� 4. \ 1 'a `� 1 Vie., 4. yr . r n� U •-, Fb +J 1r kn°t, Y / : '1A wi"' ti^y' },�i�' � t 't vL. `Y. tnw �<'eF• r a£y . .�er C C� a 11 g )644. '4 a o y, � i\'4 ,eYY i .j ! lr i .. , F • CO • - p!p N Q Crfyry�\4 ( rl sv f >. 7'S `� t iMlk s� '+rr of <JF •1.iw ) t 1V -i-/ iM n' vary,:,. f , •.,t x4Si , \ '(. �`1 x' ..p lr'! . t 1 ¢ t r d� \ s �5/r �. l C �t, . '• 1• 'j ^ ♦/1 `Oi� I 1 r, i At ✓'.� c , r• tiF }3 • )YaQN `, ". t of,. 1 < « Er Gl '1 lY L.L . 1/y .ate `�� a. 1Q t 2a tYi ni i Tf ' •,�l c �?? a$`(., ' '''" �•i' w �i X _ 14 1�"<`i,✓ v w t�{.. ( fj. ��y f�`�"7✓ 1� ° ��.{,� e t` S fK �M {s v`t v, WV( r1. �� � { C L f 4 xsil_r K N• rvv ^� .Ett >_' LJJ o 21).., ot`\ ki t �. ! 7 . `°°• C�h .CW y L irt...?t` "l Y$ f`t y.� 3 Cr) Q ^\ 5� � Y >0°44 j f KSf ' L W ro'i' � �a"�. vACV yy µ• y i, ♦ 1 b J Ct'7• w i "S, .�ify 7 k' �'�rjc ' ¢ i�� � ��, w�^r�`j^�^4vy•_ c ra M .. " r� '^."( r "£' Z a �t4� .f��/a ,> L a.,tj 01i�TEb tht?, i .,uS , ahY,�'�, a1S� fF.P).`V Gye.r..y)•� �M`.� P• v� : Q�„ � it; l CO � ) Q L �/'� < t o%'tv� u� t< � �,�� iyi,,: ,,�.+1 9t fv J1',>). i:�d' 1[ h J^�Lt. a ` ` �, x; x P �t.'• ® CI) I • al . • .,� • < tl�\tKJXX < .k � .� f{,Qr yi �yyC�r'!4� . \ r•" �Va •36 '1 �, �, ,, v .}t �'�Yi .{,hW t t(r � i ls� NJ 2 O S ni �y7'G ^ Y. ° �jrt Y�C w lvaerw fY� .l- '"}R� i r;°t' �b� !:+\ .` Z • n \.- •)1 S' ' ' G 1" K� f ' < ry 'l /�i'`i` s 1* �S•. M. ® v \ "''ski ak' ,!) '"lA. Y ar t }i t a V f Al < ! • • l. in n t a tY'}'$G•r r 'hr�pzy \-r 4� n n c > lro�'�• ! Ca t�er�Tcx .„ihll ttif r rli�ryf,,�< No. { r f ✓N'q+, 8• tl r �p ``"'f'� q �'�:Ili } ajar r `` '' �.j. VO ® 0 wJT�f,4F. .F y��la` Plq L 1Y ". •Mall S>r3 w<Y f + � L`SR +L. tS ` a &�Y !1 oT .S>,h. T Y v.°evt c o °r { liJ ai h 11 tvt F lit'`„ 'Rti ,� I''� LI 'L r f"?� �`i « c °h Yt R<Yi - i'FY t& • ° Y� � r •^SS oCyp,�`U° �a y,�jC`�X dA `�+ 031 e p 1 `tY p X� ej r �. \.-4•tj l� n alvc�a � .5' t >.yn ♦ �: a ' }' t t \ r •® y pss A M1Y`1t t jam+ t .1 N Y l • e1. 7, a' it ` c0 LL tv 3�d ''C` /NC ri �, jtt 6`. { .hit yti S.ofa2YY Jv1oV5 x -L.. C�N,tI} > • L.y} ` Vv M! V •m '� 0 O �e �I ka w,Py\ < .j tr�xk�1 '4 } ) 7 \.wa<� .r F ." i ee�. u' _ �� i 14�n},fT t e < ,7n . > 't4 sSa G ' {� ` J4`EN �w4;tP a. ° d 'Al,a rf ,u da p �° ® �°� /v< �' rS> "H � k, . It v yetil`,a`�a" c r '"' tsri14414,11 i x( • .t.0 till � F� L.s . � !' 4K.(,n'`�� ' fi +' 1 ' � t e � ` ,g � 2 `( V .t ! w9 ° ,^l° ® O $S' i�` X+' j:S+ ( �?< (i )r��, t � " �i +0.°L • •4 t�' « <� > . 5 v._ a ,�♦ ��.9 a) 0- Z "'�. rR��r4 z PY\Y` %fi �cv �t>jr.'tT•� f • Yy r� ^i 1���T a • e<a fin`"s?! .wc! .�,�` �' 2. �••� KI I { .'F.RV Iv... . yi !i,'F ' �1rr'i�. r •�•1� n o/'.s r.>,'t. ern fa vv? «l'St .Yb CI) vi ® • ru EL LL � ' jU) 0 \li r>J<6 L� e ettot ,♦i ;> e`h� 4 Si r it . • ♦ <i<d \,,! ; ) t 6 wC ° • ,) i N, .4. ^ v w e G , °I C gat cs ,. • ,(�A q ♦ e ,\J r� ,l 3'at N t^ 4 l ° �' K ''' W 7 v t �A i �Q J' Y v �� , �.„ Sv a ��¢ 2e � ) St6te x',, 't ^ s s `da"e '.yam ��n 4' , (�) co orter ,v • p- e. , I > g� , kv 1x r t c , ,V7i�/F V� PL,>` 3 = . r/)�'\h�, f t l'3b� \ ,a v .! '3 r " o +r+f" La v \ �•r '`t i< x • a/ grA yi CL ,AC ±4øT ' a\L'V �` '�'..,i. f x`4t` )i QS;/`.'� ,..4�,-• " t A'\ :, �' ` : ▪''4"r \ t A\v,, e W 1.6e ti a x t c v .Sa f'� t \ 3 •r ;a1• r• . -.AIL .y/ /p (pp��J��], CO ♦ O�G .' c L2,+^"r , ' .' 'A m•3 Cy. Jx `k`,`t' ,, V `8� ,Y x 9E's ( i ° rJroE < n qy� }• ^ `^-,i t ik `\ 4 �° e 'b41.11� 5�"' >Y '+ r` +.' :�ibr,. r' / ""` \ (� x•6 ¢ef I alC ' � �te 3 : 1r n • "Dx• > +, g v _.. r ��. \ ,` J x, 4Py�ar � , �!'hii , G ♦ C\ r. � ' o �`ea r5 1 <3i � �7 �' .f? rr >.ai i. „T. 'r� ,�k l+ ilb, ,ti+,s n 'Z° t � + 1 . F ��, ar tr4 w e r+ A. F m • t�° • CNI Cr) 5 h''�'`I y r <h� '� • ,.,/,',*�' s> . iy {aw�.a,� ®. ' y h *t .,�'yy °�r „ . t`l� r"'Yb k • r ' 4 ; '��y' � / s✓r '( o.. < x "`{�G.,1yy --` :J'+♦51r tN OKr t \ ^rT' < \a b^� Y <'� ,rYd.xf\Hi 1 A1A• ytla4 } 414 < ,i . � COCL \:'C i ., zt: t "f s �p,3��" , �64J% 1LLL''a''.-. F:C4 "'�iv 'W.+.LL,„�.�1, �✓ \K �• } •�11 /(�)� /� lYJCr I .� T �Y Ou.�,,. r ,witl ` sr � ' 1 '/C'p"�`(� `)".nn WA6,3 ` k x\ CD a I 2 . ♦ h ; • � ) `°L�"S, ). 1j a • A7.T a1 i ) �✓ ,n ' Z �f'\ t6 a1hY♦"Vxt.i k f� '� � ^'.' ' `�',`Y} , bT )'b hR �y'�p .�V'.i e "\>\ a `M(x{' .F a 5,wt' ty t .. '4f a�sy. ` o r. /'7 r 02 N e`3 � 0 / ,� 41.J CO o.0 -C ® .moo P„ '' c+p. rick 'uZ < r ('�?�n h� sc� b i ♦ '�Z t r \ 4. 4 ,/L� /�� 0 CV �J ® a S nil \ ' � etN �� T- s Key'` , t W W LyJ t ss \•aA:xc ♦x .e r9iA r'r c' Y j� o"t* l d— U ® � `�g^�ma y ' t .j? .i�a" ~ r w ''+x A I co s. CO r \AAn, yY`i) i. ?> 5 , y `el \ % }r. ` y�" ' a, /0� C a. >1 ' ^ ,fiety,•.a fly 'ry(yrirv. rah s• t' N •nC �'Y k,v`C y¢ < v�r > i •„ "a •y^a O •E... �— t At 't a� F G< aUS niC¢� a �'=+6 . ' JA fU ) Y , • ! ' ` ® Y O _� {� xn` evx a+k.;i M> l. � G� (SeY � a � jwsr 1 �94! � 3• ' to \^+o d .-K •�, 'r� r .r .M.0 ��Ae CD �� �� t Nr at L1 ', J�C g56.(',.S ! • ♦ eS b - CO O ® a � s ��stA n ) w+y,�y , 1K�J .\I x � >._ � ~• � '�`� A C �+ R y A Kt -I—. d/ o J J , �l Vr > ♦W. � t c i h • 2� on © 9 99 )*y v l <1 '� ! r \°.. � .S:y ♦l Ss p,, �Y, 9 t •G � \ i' GO -8—� a) L ® D� jl^ r'` "''�In : P.<�NO'"�y, 7 �y 4` �, i.1 ♦. j. k"'' ". t /CD �vj'} rn CO ; '• *la `0,� K♦�'yl �yt�,',(�' $x i. ' 3�� t Y .C�i,G` ��QC V V 0 i. D. ® tFxV ` X ; f i ,, iVj ✓ �� yy.. q• \ lMw ,��sfe }r L OD � ` • " J J�C' J`. t PCyyA �C�.Cc �`y�l '�VI.� ,,rr�^ w` �a J ` � f >hh) n,4ti a T °1, 19� t3FF > \J}F +.k 'Gi ^lY�"„yL�f': < ' >� `\ • v flWl p V x" ytta'CVy 5 j <O t`J. e t h ✓ $�Y '� /\ 0 ILI CO 0 mimi CZ /f0. • ,x\, A 4 tyt,. V> L mmel see • • .�D ( ' kit i�?, J xre �3 • ♦r >" ,+ •a . '°u: A J \ L "� ) �, }!, � < tC' o Ct .> >> it a5)11 N`A�Y L!� t r°�.' To CO ID �• � x ho is < ¢ qq zy .�� a„ SJ 'hi 1 A Se yydr'1'. y • +Y ' l�i { rC` Samp S, Attbs41 CD 0 a) Ci -fr n.^' +y xi. ! + ' r %"h+` /'1 s' y ,�\vy� • • ( ' ) ® /le Q CO Li_ caC 4. �# w �_ CD 0 d 4.5 �y o _ a) 'Y to Y� , • f• , �n Y °f>F , /. •� �— •� 3, ¢ in.�gcJa'°' o'" • �5,^,Yw� r i `ti� �YY�S° d H A) NCa_ . . . .w YI A� H GITy �� Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street Anacortes,WA 98221 1891 ,f4,46' p: 360-299-1983 stevel@citvofanacortes.org www.anacorteswa.gov Project Address: 3001 West 3rd Place Submittal Date: 11-27-2018 Parcel Number: P58429 Revision Number: 4 Permit Number: BLD-2018-0588 . Acceptance Date (COA): 11-27-2018 Reviewer:Steven Lange FRONT OF REPORT AeL6'f— Submittal Checklist: o TAB#1 through#5- Drainage Analysis--Minimum Requirement#1 to#5 c APPENDIX 1 Soils Anal ss(`Leka,.. 1,thajtcr 3.1.1) o APPENDIX 2-Survey performed by a Professional Land Surveyor o APPENDIX 3 - Determining Construction Site Sediment Damage Potential (Appendix 7) o APPENDIX 4-Site Plan with all applicable information (Minimum Size 11x17—30 scale) o APPENDIX 5-Applicability Requirements(Figure 1-2.4.1, Figure 1-2.4.2 and Figure 1-2.5.1) o APPENDIX 6- Documented Site Photos (North,South, East and West) o APPENDIX 7 Drainage BMP Maintenance Covenant Project Description: (What is it you are looking to do?) Construct a 2,461 SF residential home on an 8,800 SF lot. The impervious area, which includes all new hard and replaced surfaces is 5,329 SF. Existing Site Conditions Summary: (Additionally, provide information on previous permits, if any, like Grade and Fill, Clear and Grade) The site is unimproved with no existing structures. The site is solid rock with the north downslope having topsoil placed during the construction of West 3rd Place. The site grade slopes from south to north with an approximate 27 percent grade. Minimal to no vegetation existed with the exception of scrub brush that has grown on the site over the years after being cleared in approximately 1999. In 2018 a Grade and Fill Permit was issued, by the City of Anacortes Planning Department to chisel rock to make room for the home foundation. The project provided a Construction Storm Water Prevention Plan during that time. Provide the Infiltration Rates found during the rainy season: N/A Inch\Per Hour Site is solid rock What was the depth of the ground water table? N/A Feet and Inches below existing grade (See completed Soils Analysis (Volume 1, Chapter 3.1.1) Site is solid rock Y Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6' Street Anacortes,WA 98221 + 1891 ,Sr p: 360-299-1983 stcvcl(a�citvofanacortes.org f www.anacorteswa.gov 0 Site Sediment Transport Score: 75 Total Points (High\Low) (See Determining Construction Site Sediment Damage Potential(Appendix 7) The site was cleared under a Grade and Fill Permit in 2018. The project was not required to complete the above reference determination at that time. Since the issuance of the permit, the site has been manipulated and is currently solid rock. The area of sediment transport is at the north end of the property where there will be minimal activity. The project has an approximate slope of 27%, greater than the 25% identified and is upstream of a Marine near-shore Habitat. Drainage Basin (2007 Storm Comp Plan—City website\publicworks\engineering\comprehensive plans): What Drainage Basin are you in? G9 Identify any downstream drainage issues (Storm Comp Plan: Identified, but corrected If so, describe: Area #14 identifies the concrete outfall pipe is crushed. When Strandberg Constructed developed Dakota Avenue, they fixed the downstream issue and installed a Contech Stormwater Quality Vault. Complete the Applicability Requirements— Flow Chart (Figure I-2.4.1, Figure 1-2.4.2 and Figure 1-2.5.1)) - Highlight the path and attach Done. See attached. DOE Stormwater Management Manual Minimum Requirements: (MR#1 to MR#5 only). Refer to the 2012 Department of Ecology Manual, as amended in 2014 for further required information. y Minimum Requirements #1 to #5 ' ;. ENGINEERING DEPARTMENT Steve Lange,Project Manager 904 6th Street Anacortes, WA 98221 4j . 1891 ,(ifp: 360-299-1983 stevelacityofanacortes.org I www.anacorteswa.gov TAB 1 (MINIMUM REQUIREMENT #1) 1-2.5.1 Minimum Requirement#1—Prepare a Stormwater Site Plan - 1.3—Preparation of a Stormwater Site Plan - 1.3.1—Stormwater Site Plans:Step-by-Step Note:The level of detail needed for each step depends upon the project size. Provide a narrative description of each step. 1-3.1.1 Step 1-Site Analysis: Collect and Analyze Information on Existing Conditions Site analysis shall be submitted as part of the Existing Conditions Summary above. Part of the information in this step should be used to help prepare the Construction Stormwater Pollution Prevention Plan. Purpose of the Site Analysis is to provide fora Low Impact Development site design that is intended to compliment the predeveloped conditions of the site. The site is unimproved with no existing structures. The site is solid rock with the north downslope having topsoil placed during the construction of West 3rd Place. The site grade slopes from south to north with an approximate 27 percent grade. Minimal to no vegetation existed with the exception of scrub brush that has grown on the site over the years after being cleared in approximately 1999. In 2018 a Grade and Fill Permit was issued, by the City of Anacortes Planning Department to chisel rock to make room for the home foundation. The project provided a Construction Storm Water Prevention Plan during that time. 1-3.1.2 Step 2- Prepare Preliminary Development Layout Based upon the analysis of existing site conditions, locate the buildings, roads, parking lots, landscaping features, on-site stormwater management BMP's, and preliminary location of stormwater treatment and retention/detention facilities for the proposed development. Due to the steep slope of the lot and being solid rock, the house was designed to allow minimal disturbance as possible. The site was previously denuded in 1999. The project will utilize a portion of Erie Avenue for driveway purposes to minimize the cut and fill of the driveway to allow for access to the garage. Cl Minimum Requirements #1 to #5 ,`w!� A- ...�. ENGINEERING DEPARTMENT Steve Lange, Project Manager 1 con 904 6`'' Street Anacortes,WA 98221 4 v. 1891 p: 360-299-1983 ,. 9 4 C 0 stevel@citvofanacortes.org citvofanacortes.org I www.anacorteswa.gov 1-3.1.3 Step 3- Perform Off-site Analysis (at Local Agency's Option): Use additional Sheets, if necessary, Ecology recommends that local governments require an off-site analysis for projects that add 5,000 SF or more of new hard surfaces, or convert 3/acres of vegetation to lawn or landscape areas, or convert 2.5 acres of forested area to pasture. This project is within the G9 Drainage Basin as identified in the City of Anacortes 2007 Storm Water Comprehensive Plan. The current plan identifies an issue at the outfall, but was corrected from a recent Rawhouser Short Plat in 2007. This outfall was upsized for the future development of the Highlands Subdivision as well. The project will add 5,329 SF of new hard surface to the project. The downstream conveyance to this site is both piped and swales to the Guemes Channel. From the project site, there is a 12-inch Storm Drainage System for approximately 650 LF to the intersection of Oakes Avenue and Erie Avenue, the conveyance system then heads east along Oakes Avenue in a 10-inch Storm System for approximately 45 LF to an open conveyance swale for approximately 289 LF to Dakota Avenue. At Dakota Avenue, there is an 18-inch Storm Drainage System for approximately 700 LF to a Vortech Storm Water Vault before entering the Guemes Channel. 1-3.1.4-Determine Applicable Minimum Requirements Establish project size thresholds for the application of Minimum Requirements to new development and redevelopment projects. Figures 2.4.1 and 2.4.2 provide the same thresholds in a flow chart format. Based on the preliminary layout, determine whether Minimum Requirements#1 through#5 apply to the project; or,whether Minimum Requirements#1 through#9 apply. Please note,that Minimum Requirement#1 through#5 may trigger additional Minimum Requirements,such as Flow Control. Both Flow Charts were completed since the site is solid rock and has 35% or more of existing impervious coverage. Based on the flow charts, Minimum Requirements 1 through 5 is required. Additionally, Flow Chart (I-2.5.1)was completed and it was determined that the project is not able to achieve LID requirements under MR#5 due to being solid rock. See attached. Y C�a_ Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street.Anacortes,WA 98221 189[ p: 360-299-1983 stevel@citvofanacortcs.org I www.anacorteswa.gov 1-3.1.5 Step 5- Prepare a Permanent Stormwater Control Plan (Refer to this section of the Ecology Manual for requirements.) Project Minimum Requirements are#1 through #5. Based on the existing site conditions, the project will try to utilize: A) Lawn and Landscape: BMP T5.13 Post-Construction Soil Quality and Depth B) Roofs: BMP T5.10C Perforated Stub-out Connections. C) Other Hard Surfaces: All BMP's listed are infeasible. Project will utilize BMP T5.10C Perforated Stub-out Connection to minimize sheet flow runoff from crossing the pedestrian path of travel. All maintenance and specifications will be included in the report. 1-3.1.6 Step 6- Prepare a Construction Stormwater Pollution Prevention Plan (MR#2—13 Elements) Refer to Chapter 11-3—Planning for a detailed description of each element. See also attached Tables 4.1.1 (Source Control BMA's by SWPPP Element)and Table 4.2.1 (Runoff Conveyance and Treatment BMP's by SWPPP Element). See attached 13 Elements of a SWPPP, please complete and attached A Construction Storm Water Plan (MR#2) was completed for the Grade and Fill Permit that was issued in 2018, accepted by Kait Nelson in the Planning Department. This same Plan is submitted with this project since all BMP's under this plan are still in place and in are in working order. Prior to construction, the construction entrance will need to be resurfaced. 1-3.1.7 Step 7- Complete the stormwater site plan The Stormwater Site Plan encompasses the entire submittal to the Local Agency with drainage review authority. Refer to this section of the Manual for further clarification of each item and what is required. See below: • Project Overview- Done • Existing Conditions Summary- Done • Off-site Analysis Report- Done • Permanent Stormwater Control Plan - Done • Construction Stormwater Pollution Prevention Plan—Done Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street Anacortes,WA 98221 p: 360-299-1983 COgg:. stevel@citvofanacortes.org I WWW.anacorteswa.gov • Special Reports and Studies— N/A • Other Permits(Not provided as part of this application. On file with the Planning Dept.) • Operation and Maintenance Manual— Done • Declaration of Covenant for Privately Maintained Flow Control and Treatment Facilities. (See attached Drainage BMP Maintenance Covenant BMP Agreement) N/A - No Flow Control or Treatment Facilities provided. • Declaration of Covenant for Privately Maintained On-site Stormwater BMP's (See attached Drainage BMP Maintenance Covenant BMP Agreement) N/A - No Flow Control or Treatment Facilities provided. • Bond Quantities Worksheet, if applicable N/A 1-3.1.8 Step 8-Check Compliance with all Applicable Minimum Requirements A Stormwater Site Plan as designed and implemented should specifically fulfill all Minimum Requirements applicable to the project.The Stormwater Site Plan should be reviewed to check that these requirements are satisfied. The grades at the discharge location of the property allow for a Perforated Pipe Connection. isjY Minimum. Requirements #1 to #5 f 14` ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 66 Street Anacortes,WA 98221 __ I89l p: 360-299-1983 stevel@citvofanacortcs.org I www.anacorteswa.gov TAB 2 (MINIMUM REQUIREMENT #2) • 1-2.5.2 Minimum Requirement#2 a Construction Stormwater Pollution Prevention Plan (SWPP) - Refer to the 13 Elements of the SWPP (Separate Document,complete and attach) - See attached Table 4.1.1 and Table 4.2.1 Attached to this application is a SWPP that was accepted under the previous Grade and Fill Permit by the City of Anacortes Planning Department. This plan will be modified to meet the change in site conditions as construction moves forward. - i • 41 Source Control GNPs This section contains the standards and specifications for Source Control BN-Ps. Table 4.1, below, shows the relationship of the BMPs in. Section 4,1.1 to the Construction Stonnwatex Pollution Prevention Plan (SWPPP) Elements described in Section 3.3. Elements not shown on Table 4.1 are not satisfied through installation of Source Controls. Table 4.1.1 Source Control BIUIPs by SWPPP Element Element#1 Element#2 Element#5 •Element#8 Eieinent#9 Element#11 Element#12 Elementi#13 Preserve Establish Protect Low.' 13MP or Element Name VegefationlMaric Construction Stabilize Protect Control Maintain Manage the impact Sails Slopes Pollutants EMPs Project p Clearing Limits Access _ Development BMPCIA1; Presei-viny Natural Vegetation ✓ ! • BMP C10k:Buffer Zones ,/ t BMP C103:1:11gh VisilaitifyPlastic or Metal ✓ ✓, pence BMP C1O5: Stabilized Construction Entrance I Exit • , BMP C1o6: Wheel Wash • BMP G107: Construction Road/Parking ✓ _ Area Stabilization ! BNIP C120:Temporary and Permanent 1 ✓ Seeding I • BMP 0121: Mulching ✓ BMPCI22: Nets.andBlankets ,l SNIP C123: Plastic Covering BIVIP C124: Sodding ,/ 13MP 0125:-Topsoiling/Composting BMP C126: Poiyacrylarnicie for Soil Erosion ✓ Protection BMP C130: Surface Roughening . BMP C131: Gradient Terraces ti/ ✓ BMP 0140: Dust Control • f ✓ v SNIP P151):Materials On Hand IIII ✓ ✓ BMP C151: Concrete Handling BMP C152: Sawcutting and Surfading ,Pollution Prevention PIP C153: Material belivery,Storage:and Containment 1 it ' BMP 0154: Concrete Washout Area ✓ • BMP C160:Certified Erosion and Sediment Control Lead' I ✓ l ✓ 11311/MP C162:Scheduling + ! , 4 2 Runoff Convey nee and Treatniiiit Ps This section contains the standards and specifications for RunofF Conveyance and Treatment Bs. Table 4.2.1, below, shows the relationship of the BMPs in Section 4.2 to the Construction Storm*ater Pollution Prevention Plan (SWPPP) Elements described in Section 3.3. _ • Table 4.2.1 Runoff Conveyance and Treatment B Ps by SWPPP Element Elernent#4 Element {{ Element 13 Element Element#f Element##? Element09 Element##10 t SMP or Element Name Control install Protect .Pktect Stabilize Control Control De- Protect Low FlourRates Sedirr�ens t SlnpeS Pollutflnts Watering Channels Impact ;�traln Inlets . .„�..• �._ Control _ �� and Outlets _, Development IaMP C200: interceptor Dike and Swale V DMP C201: Grass-Lined Channels ✓ "SNIP C202;Channel Lining f BMVMP 6203: Water Bars. ✓ .V • BMP C204: Pipe Slope Drains V BMP 0206: Subsurface Drains - • BIVMP C206: Level Spreader • 1 I3MP C207: Check Darns .7 SMP G208: Triangular Silt Dike(Geotextlie .. Encased Check Dam) BMP C209: Outlet Protection ✓ I3lVIP C220: Storm Drain Inlet Protection• I V • - BAP C231: Brush Barrier .r ✓ BM?C232: Gravel Filter Berm V. 131111P C233 Silt Fence ,f ;l BAP C234: Vegetated Strip ✓ s/• BMP C235: Wattles • SMP C236; Vegitetive Filtration BMP C240: Sediment Trap SNIP C241: Temporary Sediment Pond I . V BMP C250: Construction Stornnvater Chemical Treatment 13MP 0251:Construction Stormwater Filtration ' ' BMP C252;High pH Neutralization Using CCz • . BMP C253:pH Control for High pH Water i • • Volume II— Construction StormtivaterPollution Prevention , Y E? Planning, Community, & Economic Development Department PO Box 547, Anacortes, WA 98221 PH: 360.299.1984 13 Elements of SWPPP (Construction Stormwater Pollution Prevention Plan) Please check off boxes to show that each element has been read and understood. Provide details where applicable and if certain aspects are unnecessary or exempt, clearly justify. Details of the 13 Elements and the correlating BMPs are listed on Pg.236 of the 2014 Stormwater Management Manual for Western Washington(SWMMWW). A link is provided on the City of Anacortes website, under Planning, Community, & Economic Development Department,as well as under Stormwater on the Engineering Division of Public Work's page. Owner Name: a _1 h/r Site Address:. 0V 7 /V Prepared By: 4/ The Stormwater checklist or building permit determined that: ❑ The 13 elements must be addressed for ❑ These elements must be addressed for construction activity adding under 2,000 construction activity adding 2,000 sq.ft. sq.ft. of hard surface area. or more of hard surface area. This means that an attached narrative and site plan are required with this document. Under each element,explain the best management practices(9MPs) used or justify reasoning for those that will not be used. If needed, please attach a narrative to further explain plans or justification. ELEMENT 1: Preserve Vegetation/Mark Clearing Limits 0 Before beginning land disturbing activities, including clearing and grading, clearly mark all clearing limits,sensitive areas and their buffers, and trees that are to be preserved within the construction area. ❑ Retain the duff layer, native top soil,and natural vegetation in an undisturbed state to the maximum degree practical. eve ,tiva®A .? ® 4 F 1--hz &eel 110 a n / e d V Page 1 of 8 March, 2017 infiltration facility. Runoff from fully stabilized areas may be discharged without a sediment removal BM P, but must meet the flow control performance standard in Element#3, bullet#1. ❑ Locate BMPs intended to trap sediment on-site in a manner to avoid interference with the movement of juvenile salmonids attempting to enter off-channel areas or drainages. ❑ Provide and maintain natural buffers around surface waters,direct stormwater to vegetated areas to increase sediment removal, and maximize stormwater infiltration. ❑ Where feasible, design outlet structures that withdraw impounded stormwater from the surface to avoid discharging sediment that is still suspended lower in the water column. /epee .S 1ilde4 p/tin A , > eP� � v�/ ,c/h pey-1,1 acq- 4,t75-4 Trd -.51/ „fa_ N4 7) A14 ELEMENT 5: Stabilize Soils O Stabilize exposed and unworked soils by application of effective BMPs that prevent erosion. Applicable BMPs include, but are not limited to:temporary and permanent seeding,sodding, mulching, plastic covering, erosion control fabrics and matting, soil application of polyacrylamide (PAM),the early application of gravel base early on areas to be paved, and dust control. ❑ Control stormwater volume and velocity within the site to minimize soil erosion. ❑ Control stormwater discharges,including both peak flow rates and total stormwater volume,to minimize erosion at outlets and to minimize downstream channel and stream bank erosion. O Soils must not remain exposed and unworked for more than the time periods set forth below to prevent erosion. o During the dry season (May 1—Sept 30):7 days o During the wet season (Oct 1—Apr 30):2 days ❑ Stabilize soils at the end of the shift before a holiday or weekend if needed based on the weather forecast. ❑ Stabilize soil stockpiles from erosion,protect with sediment trapping measures,and where possible, be located away from storm drain inlets,waterways,and drainage channels. ❑ Minimize the amount of soil exposed during construction activity. ❑ Minimize the disturbance of steep slopes. ❑ Minimize soil compaction and,unless infeasible, preserve topsoil. 0 Avg l- /� z- cc eel 4 Ic v held, A/, �� k/I/i � f�� ��f o e ..A61.1 .. 2- 7d S 5} m" �� ,a 7 P.,S5 b/?/J/o,c. 4.-4 A iwTe4 w`PI Ptetee a I eo u4 odev Pepe � t c . ELE ENT 6: Protect Slopes ❑ Design and construct cut-and-fill slopes in a manner to minimize erosion.Applicable practices include,but are not limited to, reducing continuous length of slope with terracing and diversions, reducing slope steepness, and roughening slope surfaces (Ex:track walking). Page 3 of 8 March, 2017 f- a ELEMENT 8:Stabilize Channels and Outlets ❑ Design, construct,and stabilize all on-site conveyance channels to prevent erosion from the following expected peak flows: o *Channels must handle same peak volumetric flow rate as temporary pipe slope drains listed in Element 6, above. ❑ Provide stabilization,including armoring material,adequate to prevent erosion of outlets, adjacent streambanks,slopes,and downstream reaches at the outlets of all conveyance systems. ❑ The best method for stabilizing channels is to completely line the channel with a blanket product first,then add check dams as necessary to function as an anchor and to slow the flow of water. l) Ai,I -) /V'AA — A O ELEMENT 9: Control Pollutants tit ❑ Design, install, implement,and maintain effective pollution prevention measures to minimize the discharge of pollutants. ❑ Handle and dispose of all pollutants, including waste materials and demolition debris that occur on-site in a manner that does not cause contamination of stormwater. ❑ Provide cover,containment,and protection from vandalism for all chemicals, liquid products, petroleum products, and other materials that have the potential to pose a threat to human health or the environment.On-site fueling tanks must include secondary containment. Secondary containment means placing tanks or containers within an impervious structure capable of containing 110%of the volume contained in the largest tank within the containment structure. Double-walled tanks do not require additional secondary containment. 4,'� ❑ Conduct maintenance,fueling,and repair of heavy equipment and vehicles using spill prevention and control measures. Clean contaminated surfaces immediately following any spill incident. ❑ Discharge wheel wash or tire bath wastewater to a separate on-site treatment system that prevents discharge to surface water,such as closed-loop recirculation or upland land application, or to the sanitary sewer,with local sewer district approval.Wheel wash or tire bath wastewater should not include wastewater from concrete washout areas. 6J ❑ Apply fertilizers and pesticides in a manner and at application rates that will not result in loss of j chemical to stormwater runoff. Follow manufacturers' label requirements for application rates and procedures. ff ❑ Use BMPs to prevent contamination of stormwater runoff by pH-modifying sources.The sources for this contamination include, but are not limited to:bulk cement, cement kiln dust,fly ash, new concrete washing and curing waters,waste streams generated from concrete grinding and sawing, exposed aggregate processes,dewatering concrete vaults,concrete pumping, and mixer washout waters.Adjust the pH of stormwater if necessary to prevent violations of the water quality standards. Page 5 of 8 March, 2017 • of water quality standards for turbidity.The easiest way to avoid discharging muddy water is through infiltration and preserving vegetation. / l f lqD f i a)r7.e zssJ 1 face -rah �qz. 4 cA/, f f ce-sue p�,se i /� / r,.� j4 717°-•! li”/-.g lit` �s� / r'j G2C-64-cam. �''1 � 'T 2 / ' �6.ud�c�l kef rozPk_e�i4 41/4Y 3-7 svi 4/ sf✓D .lJdse .47- .4�sfi ELEMENT 11: Maintain BM Ps �', ❑ Maintain and repair all temporary and permanent erosion and sediment control BMPs as needed to assure continued performance of their intended function in accordance with BMP specifications. 7,11 ❑ Remove all temporary erosion and sediment control BMPs within 30 days after achieving final site stabilization or after the temporary BMPs are no longer needed.Some temporary erosion and sediment control BMPs are bio-degradable and designed to remain in place following construction such as compost socks. F ❑ Provide protection to all BMPs installed for the permanent control of stormwater from sediment and compaction.All BMPs that are to remain in place following completion of construction shall be examined and placed in full operating conditions. If sediment enters the BMPs during construction, it shall be removed and the facility shall be returned to the conditions specified in the construction documents. ❑ Remove or stabilize trapped sediment on site. Permanently stabilize disturbed soil resulting from removal of BMPs for vegetation. k 4 5Iv /fe ®n s� , > sit//fie e e„r1 h-( ,, (4 Le tea"- ��s2' tc. -cPLJ 3/ d�L4_ 'OW z P II E� 4 i A- "" P fr+J (-J ev`G/' %�r3 feY+��4 cif n $ • . cd .s Le,r�:','ems"" by ELEMENT 12: Manage the Project- Projects subject to Minimum Requirements 1-9 must have a Certified Erosion and Sediment Control Lead(CESCL) for site inspections. Projects subject to Minimum Requirements 1-5 do not require the inspector to be certified. By the initiation of construction,the SWPPP must identify the CESCL or inspector,who shall be present on-site or on-call at all times. Management details starting on Pg. 250. {! ❑ Phase development projects to the maximum degree practicable and take into account seasonal work limits to prevent soil erosion and prevent transporting sediment from the site during construction. ❑ Inspection and monitoring-Inspect, maintain, and repair all BMPs as needed to assure continued performance of their intended function. ❑ Maintain, update,and implement the SWPPP. ❑ Clearing and grading activities for developments shall be permitted only if conducted using an approved site development plan (e.g.,subdivision approval). ❑ From Oct 1 through Apr 30,clearing,grading, and other soil disturbing activities is permitted only if shown that the site operator will prevent silt-laden runoff from leaving the site through a combination of the following: Page7of8 March, 2017 0 Y 0 C)., Minimum Requirements #1 to #5 - _ ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street Anacortes,WA 98221 \rt. 1891 4v p: 360-299-1983 stevel@citvofanacortes.org I www.anacorteswa.gov TAB 3 (MINIMUM REQUIREMENT #3) • 1-2.5.3 Minimum Requirement#3 a Source Control of Pollution All known, available and reasonable source control BMP's must be applied to all projects. Source control BMP's must be selected, designed, maintained according to the reference Ecology Manual. The intent of source control BMP's is to prevent stormwater from coming in contact with pollutants. They are a cost-effective means of reducing pollutants in stormwater, and,therefore, should be considered in all projects. The project BMP's are in place from a previous Grade and Fill Permit and comply with the Construction Storm Water Plan as outlined in Minimum Requirement#2. Any additional BMP's will be put in place as the site conditions change. The project will utilize a phased approach (BMP C162—Scheduling) - Installation of the footings and foundation. - Installation of all conduits and utilities to the foundation, including the Perforated Storm Connection. - Backfill the foundation with the required BMP T5.13 and cover with Mulch as identified in the detail until sod or grass seed can be placed. - The project crews will work to minimize impact to these areas during the construction of the residential home. Any updating of the referenced BMP's will be done at Landscaping time. 8.r y 0, Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange,Project Manager ,7 904 6' Street Anacortes,WA 98221 1891 p: 360-299-1983 •4$C stevel@citvofanacortes.org I WVvw.anacorteswa.gov TAB 4 (MINIMUM REQUIREMENT#4) • Minimum Requirement#4—Preservation of Natural Drainage Systems and outfalls Natural drainage patterns shall be maintained and discharges from the project shall occur at the natural location,to maximum extent practicable.The manner by which runoff is discharged from the project site must not cause a significant adverse impact to downstream receiving waters and down gradient properties. All outfalls require energy dissipation. The objective is to preserve and utilize drainage systems to the fullest extent because of the multiple stormwater benefits these systems provide; and to prevent erosion at the downstream of the discharge location. Refer to the reference manual for supplemental guidelines and additional information under this section. There is a natural drainage path the flows along the unimproved West 4th Street and onto the unimproved Erie Avenue where there is a conveyance swale that enters into a storm pipe, located at the northeast corner of the property within the Public Right-of-Way. The project will connect to an existing private storm drainage pipe at the low-point of the project. There is an existing stub at the northwest corner of the property that provide enough grade to allow for a Perforated Storm Connection to the private storm drainage pipe. Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street Anacortes,WA 98221 1891 p: 360-299-1983 144<1 C 0%t?' stevel@citvofanacortes.org I www.anacorteswa.gov TAB 5 (MINIMUM REQUIREMENT#5) • Minimum Requirement#5--On-site Stormwater Management Project thresholds that trigger Minimum Requirements#1 through#5, shall utilize the On-site Stormwater Management BMP's from List#1 for all surfaces within each type of surface in List#1; or, Demonstrate compliance with the LID Performance Standard. Projects selecting this option cannot use Rain Gardens. They may choose to use Bioretention BMP's as described in Chapter V-7—Infiltration and Bioretention Treatment Facilities to achieve the LID Performance Standard. Refer to this section of the reference Manual for all Feasibility or Infeasibility Criteria. Is this project Flow Control Exempt? (Yes\No) (See Appendix i-E: Flow Control-Exempt Surface Water). If yes, provide reasoning from the applicability section of 1-2.5.7 Minimum Requirement #7: Flow Control). If No,then the project triggers Minimum Requirement#7 (1-2.5.7) and possibly Minimum Requirement#8 (1-2.5.8). • The project site must be drained by a conveyance system that is comprised entirely of mamnade conveyance elements (e.g.,pipes, ditches, outfall protection) and extends to the ordinary high water line of the exempt receiving water; and As identified under 1-3.1.3 Step 3 (MR#1), the conveyance system is piped and ditches all the way to the bay. • The conveyance system between the project site and the exempt receiving water shall have sufficient hydraulic capacity to convey discharges from future build-out conditions (under current zoning) of the site, and the existing condition from non-project areas from which runoff is or will be collected; and The 2007 Storm Drainage Comprehensive Plan did not identify any downstream issues when modeled by Gray and Osbourne. • Any erodible elements of the manmade conveyance system must be adequately stabilized to prevent erosion under the conditions noted above. No issues identified downstream Y Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager It 7 904 6t' Street Anacortes,WA 98221 ,( ,;. 1891 p: 360-299-1983 "N. stevel@citvofanacortes.org citvofanacortes.org I ww\v.anacorteswa.gov All sites are required to utilize BMP T5.13—Post Construction Soil Quality and Depth. For each surface, consider the BMP's in the order listed for that type of surface. Use the first BMP that is considered feasible. No other on-site Stormwater Management BMP is necessary for that surface. Feasiblity shall be determined by evaluation against: 1. Design criteria, limitations and infeasiblity criteria identified for each BMP in this manual, and; 2. Competing needs criteria listed in Chapter V-5—On-site Stormwater Management. Lawn and Landscaped Area: • BMP T5.13:Post-Construction Soil Quality and Depth. (Attach Detail in Report) Detail and Section information are provided in the report. Roofs: (Provide feasible detail and maintenance and operations specifications in the report) 1. BMP T5.30: Full Dispersion Feasible\infeasible If infeasible, explain the criteria: Due to site grades, it is difficult to send drainage uphill to the vegetated Erie Avenue and there is no native vegetation on-site. Full Dispersion would cause potential erosion on the steep slopes down hill from the home. Or,T5.10A: Downspout Full Infiltration Feasible\Infeasible If infeasible,explain the criteria: The site is solid rock and does not provide infiltration. Potential Erosion downhill. 2. BMP T5.14A: Rain Gardens Feasible\Infeasible If infeasible, explain the criteria: Slope are approximately 27% existing. The plan is to have the site slope down to the sidewalk from the house and have select plantings for landscaping. Y et> Minimum Requirements #1 to #5 ENGINEERING DEPARTMENT Steve Lange, Project Manager coi 904 6th Street Anacortes,WA 98221 4,,; 1891 p: 360-299-1983 j. stevel@citvofanacortes.org citvofanacortes.org I www.anacorteswa.gov Or, BMP T7.30: Bioretention Cells, Swales,and Planter Boxes Feasible\Infeasible If infeasible,explain the criteria: Slope are approximately 27% existing. The plan is to have the site slope down to the sidewalk from the house and have select plantings for landscaping. 3. BMP T5.10B:Downspout Dispersion Systems Feasible\Infeasible If infeasible, explain the criteria: A) There is no vegetated flow path with a length of 25-feet, and; B) The site has an approximate slope of 27% from south to north. C) The site is solid rock. 4. BMP T5.10C: Perforated Stub-out Connections Feasible\Infeasible If infeasible,explain the criteria: No other BMP's meet the criteria for the site. This project will utilize the Perforated Stub-out Connection for the roof. Other Hard Surfaces: (Provide feasible detail and maintenance and operations specifications in the report) 1. BMP T.5.30 Full Dispersion Feasible\Infeasible If infeasible,explain the criteria: There is no native vegetation on or off-site to fully disperse the driveway 2. BMP T5.15:Permeable Pavements Feasible\Infeasible If infeasible,explain the criteria: Where installation of permeable pavement would threaten the safety or reliability of pre-existing underground utilities, pre-existing underground storage tanks, or pre- existing road sub-grades. Within 50 feet from the top of slopes that are greater than 20%. C)t1 i Minimum Requirements #1 to #5 ' - ENGINEERING DEPARTMENT Steve Lange, Project Manager 904 6th Street Anacortes,WA 98221 1891 p: 360-299-1983 '1\ C COX X stevel ,,citvofanacortes.org I www.anacortes\va.gov Or, BMP T5.14.A:Rain Gardens Feasible\Infeasible If infeasible, explain the criteria: Project site will have an approximate finished grade of 20%. Or, BMP T7.30: Biorention Cells,Swales and Planter Boxes Feasible\Infeasible If infeasible, explain the criteria: Project site will have an approximate finished grade of 20%. 3. BMP T5.12: Sheet Flow Dispersion Feasible\Infeasible If infeasible, explain the criteria: Slopes are approximately 27% existing with a finished grade of approximately 20%. The site does not have any natural vegetation to flow to. Or, BMP T5:11:Concentrated Flow Dispersion Feasible\Infeasible If infeasible,explain the criteria: Slopes are approximately 27% existing with a finished grade of approximately 20%. The site does not have any natural vegetation to flow to. --- -- //He Applicant Signature Date Mulch 91 Loose soil with visible dark organic matter - 4" Loose or fractured subsoil Reprinted from Guidelines and Resources For implementing Soil Quality and Depth BMP T5.13 in WDOE Storm water Management Manual for Western Washington, 2010, Washington Organic Recycling Council NOT TO SCALE Figure V-5.3.3 Planting Bed Cross-Section DEPARTMENT OF Revised January2016 ECOLOGY Please see http://www.ecy.wa.gov/copyrighLhtml for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. BMP T5.13:Post-Construction Soil Quality and Depth hops://fortress.wa.gov/ecy/madcap/wq/2014SWIvfV1WWinteractiv... BMP T5.13: Post-Construction Soil Quality and Depth Purpose and Definition Naturally occurring (undisturbed) soil and vegetation provide important stormwater functions including: water infiltration; nutrient, sediment, and pollutant adsorption; sediment and pollutant biofiltration; water interflow storage and transmission; and pollutant decomposition. These functions are largely lost when development strips away native soil and vegetation and replaces it with minimal topsoil and sod. Not only are these important stormwater functions lost, but such landscapes themselves become pollution generating pervious surfaces due to increased use of pesticides, fertilizers and other landscaping and household/industrial chemicals, the concentration of pet wastes, and pollutants that accompany roadside litter. Establishing soil quality and depth regains greater-stormwater functions in the post development landscape, provides increased treatment of pollutants and sediments that result from development and habitation, and minimizes the need for some landscaping chemicals, thus reducing pollution through prevention. Applications and Limitations Establishing a minimum soil quality and depth is not the same as preservation of naturally occurring soil and vegetation. However, establishing a minimum soil quality and depth will provide improved on-site management of stormwater flow and water quality. Soil organic matter can be attained through numerous materials such as compost, composted woody material, biosolids, and forest product residuals. It is important that the materials used to meet the soil quality and depth BMP be appropriate and beneficial to the plant cover to be established. Likewise, it is important that imported topsoils improve soil conditions and do not have an excessive percent of clay fines. This BMP can be considered infeasible on till soil slopes greater than 33 percent. Design Guidelines • Soil retention. Retain, in an undisturbed state, the duff layer and native topsoil to the maximum extent practicable. In any areas requiring grading remove and stockpile the duff layer and topsoil on site in a designated, controlled area, not adjacent to public resources and critical areas, to be reapplied to other portions of the site where feasible. • Soil quality. All areas subject to clearing and grading that have not been covered by 2 of 5 11/26/2018,7:20 PM BMP T5.13: Post-Construction Soil Quality and Depth https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... impervious surface, incorporated into a drainage facility or engineered as structural fill or slope shall, at project completion, demonstrate the following: 1. A topsoil layer with a minimum organic matter content of 10% dry weight in planting beds, and 5% organic matter content in turf areas, and a pH from 6.0 to 8.0 or matching the pH of the undisturbed soil. The topsoil layer shall have a minimum depth of eight inches except where tree roots limit the depth of incorporation of amendments needed to meet the criteria. Subsoils below the topsoil layer should be scarified at least 4 inches with some incorporation of the upper material to avoid stratified layers, where feasible. 2. Mulch planting beds with 2 inches of organic material 3. Use compost and other materials that meet these organic content requirements: a. The organic content for "pre-approved" amendment rates can be met only using compost meeting the compost specification for BMP T7.30: Bioretention Cells, Swales, and Planter Boxes, with the exception that the compost may have up to 35% biosolids or manure. The compost must also have an organic matter content of 40% to 65%, and a carbon to nitrogen ratio below 25:1. The carbon to nitrogen ratio may be as high as 35:1 for plantings composed entirely of plants native to the Puget Sound Lowlands region. b. Calculated amendment rates may be met through use of composted material meeting (a.) above; or other organic materials amended to meet the carbon to nitrogen ratio requirements, and not exceeding the contaminant limits identified in Table 220-B, Testing Parameters, in WAC 173-350-220. The resulting soil should be conducive to the type of vegetation to be established. • Implementation Options: The soil quality design guidelines listed above can be met by using one of the methods listed below: 1. Leave undisturbed native vegetation and soil, and protect from compaction 3 of 5 11/26/2018,7:20 PM BMP T5.13:Post-Construction Soil Quality and Depth https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... during construction. 2. Amend existing site topsoil or subsoil either at default "pre-approved" rates, or at custom calculated rates based on tests of the soil and amendment. 3. Stockpile existing topsoil during grading, and replace it prior to planting. Stockpiled topsoil must also be amended if needed to meet the organic matter or depth requirements, either at a default "pre-approved" rate or at a custom calculated rate. 4. Import topsoil mix of sufficient organic content and depth to meet the requirements. More than one method may be used on different portions of the same site. Soil that already meets the depth and organic matter quality standards, and is not compacted, does not need to be amended. Planning/Permitting/InspectionNerification Guidelines & Procedures Local governments are encouraged to adopt guidelines and procedures similar to those recommended in Guidelines and Resources For Implementing Soil Quality and Depth BMP T5.13 in WDOE Stormwater Management Manual for Western Washington. This document is available at: http://www.soilsforsalmon.orq/pdf/Soil BMP Manual.pdf Maintenance • Establish soil quality and depth toward the end of construction and once established,,„ protect from compaction, such as from large machinery use, and from erosion. • Plant vegetation and mulch the amended soil area after installation. • Leave plantdebris or its equivalent on the soil surface to replenish organic matter. • Reduce and adjust, where possible, the use of irrigation, fertilizers, herbicides and pesticides, rather than continuing to implement formerly established practices. Runoff Model Representation Areas meeting the design guidelines may be entered into approved runoff models as "Pasture" rather than "Lawn." 4 of 5 11/26/2018, 7:20 PM BMP T5.13: Post-Construction Soil Quality and Depth https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... Flow reduction credits can be taken in runoff modeling when BMP T5.13: Post-Construction Soil Quality and Depth is used as part of a dispersion design under the conditions described in: • BMP T5.10B: Downspout Dispersion Systems • BMP T5.11: Concentrated Flow Dispersion • BMP T5.12: Sheet Flow Dispersion • BMP T5.18: Reverse Slope Sidewalks • BMP T5.30: Full Dispersion (for public road projects) Figure V-5.3.3 Planting bed Cross-Section 1.1 2014 Figure V 5.3.3 pdf download Washington State Department of Ecology 2012 Stormwater Management Manual for Western Washington. as Amended in December 2014 (The 2014 SWMMWW) 5 of 5 11/26/2018, 7:20 PM random fill filter fabric 18" ** r..: ��: 4" perf pipe min. i�lr � .�.�+i r • 40�• :... r,•_► 1 Y2" -Y4"washed rock .0110,40 dew 11.4 400.0411141 Nadia.if 24" min. Trench X-Section slope .� to road F drainage system 2'x 10' level trench w/perf pipe Plan View of Roof NOT TO SCALE �i1�■ Figure III-3.1 .8 11111 Perforated Stub-Out Connection DEPARTMENT OF Revised December 2015 ECOLOGY Please see http://www.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. M-3.1.3 Perforated Stub Out Connections(BMP T5.10C) https://fortress.wa.gov/ecy/madcap/wq/2014SWM1V1WWinteractiv... You are here:2014 SWMMWW> Volume 111-Hydrologic Analysis and Flow Control BMPs>Chapter 111-3-Flow Control Design> 111-3.1.3 Perforated Stub Out Connections (BMP T5.10C) 1 of 3 11/26/2018, 8:08 PM 111-3.13 Perforated Stub Out Connections(BMP T5.10C) https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... III-3.1 .3 Perforated Stub Out Connections (BMP T5.10C) A perforated stub out connection is a length of perforated pipe within a gravel filled trench that is placed between roof downspouts and a stub out to the local drainage system. Figure III-3.1.8 Perforated Stub-Out Connection illustrates a perforated stub out connection. These systems are intended to provide some infiltration during drier months. During the wet winter months, they may provide little or no flow control. Applications & Limitations Perforated stub-outs are not appropriate when seasonal water table is less than one foot below trench bottom. In projects subject to 1-2.5.5 Minimum Requirement#5: On-site Stormwater Management, perforated stub-out connections may be used only when all other higher priority on-site stormwater management BMPs are not feasible, per the criteria for each of those BMPs. Select the location of the connection to allow a maximum amount of runoff to infiltrate into the ground (ideally a dry, relatively well drained, location). To facilitate maintenance, do not locate the perforated pipe portion of the system under impervious or heavily compacted (e.g., driveways and parking areas) surfaces. Use the same setbacks as for infiltration trenches in III-3.1.1 Downspout Full Infiltration Systems (BMP T5.10A). Have a licensed geologist, hydrogeologist, or engineering geologist evaluate potential runoff discharges towards landslide hazard areas. Do not place the perforated portion of the pipe on or above slopes greater than 20% or above erosion hazard areas without evaluation by a professional engineer with geotechnical expertise or qualified geologist and jurisdiction approval. For sites with septic systems, the perforated portion of the pipe must be downgradient of the drainfield primary and reserve areas. This requirement can be waived if site topography will clearly prohibit flows from intersecting the drainfield or where site conditions (soil permeability, distance between systems, etc.) indicate that this is unnecessary. Design Criteria Perforated stub out connections consist of at least 10 feet of perforated pipe per 5,000 square feet of roof area laid in a level, 2 foot wide trench backfilled with washed drain rock. Extend the drain rock to a depth of at least 8 inches below the bottom of the pipe and cover the pipe. Lay the pipe level and cover the rock trench with filter fabric and 6 inches of fill (see Figure III-3.1.8 Perforated Stub-Out Connection). 2 of 3 11/26/2018, 8:08 PM 111-3.1.3 Perforated Stub Out Connections(BMP T5.10C) https://fortress.wa.gov/ecy/madcap/wq/2014SWMMWWinteractiv... Runoff Model Representation Any flow reduction is variable and unpredictable. No computer modeling techniques are allowed that would predict any reduction in flow rates and volumes from the connected area. Figure 1II-3.1.8 Perforated Stub-Out Connection 2014 Figure III-3.1.8 pdf download Washington State Department of Ecology 2012 Stormwater Management Manual for Western Washington, as Amended in December 2014 (The 2014 SWMMWW) 3 of 3 11/26/2018, 8:08 PM q ° �-�� oar 5d conveyed to the ,r■.1 �4� - ---- resa$OONO PO$!? k LIGN( COMPANt, 6 ty [f ` An C4 '1htgCORiES P ttAfcfRAG COPhNY, 0 l& EPKONt COMPAM'. �5^tAf1£ e,,fyve Ct� and their rc+sP " 77► G LE T! tkY SIQtt C4✓rfPANY the extuior ten K �� nder and oD 3fd Pldca i. ��1777►►► H . • sad assigns a scent !° Wrsi successor, n Gees adl ;r, replace and �r fQ feet of front yaunda %ore, momfoin, ref+a oil necessory er :W � t Fi j �A � � d7►` S)1 o �i{iah to consttuc6 Uo conduits. Sits an Q�udedaces 1„j ��• a enlarge underground PP or round;se i0 and ether '' ••�� E• s • ound ground subdivisia�rYt n rce,� �C+ 1` t�� �� �,. � } P4 xfG or camtlor the Pu+ pSe °f $ehnq a d other Yractsr:.",, 1� � • e] r � .ai thereto yrith a(ecirtc. ¢dstefe Holm ritG P u n the strecin.stater .. Yf{ ProPe y with the right {a enter 9° sest+ert mcnil r^^ together at all limes Tor the P QO , ewernoiacGut and spa -s s}prm se>Ker and saadarys rerved °"note• 1M1 4Theft a a' rot toof block S46 is hertco c(ena{, opt \-11rIttUHENfon the £oto24 pF ANACQR�CS m which andanitdr}" . /�� conveyed tothe CITY 6 ace andenlarge the �d° to Hnrw:en: ifse fN mointatn, repo reel SoutO q ro +esto the at aI( G'meforh r/r sawsr t° service � (PM totsand spa , druino Li ethi tathe to esosr herein slated• Alsaa20 'ocn%+{ {° e 3rd 4R f n:. �' r {on th orfh24' of a(! ofblock5Q5 Ddj Coriel wnveyed Io the Tor c !hceshnreDY res°rved r repla and en 4 girhichyio tonservsrclo de d coat/ ytbe hose herein f stole d. ���1"n y/r sfom+ dranag ee d! ad ions for le P P '\" ". 9 r: / '' .`, th and spa `0 '0 .,. .. . .,.K;y r rr+ (� r..yr+ + e 1Dts ) 1/4 `\ Q •,t ram,.- ... ,rr `+'. #V rr/'r +/ + SC C r ^ .,^' ^s,u •5' n' �' �© 'r,,+'/ / • i \+ \ ,, rrr +`• ) //+ 'tit / / t\ r .. s�R \ r r^ r 'r.r� { 1 {t• ed.rrr+' / `\ "+ / ' n 'S• ...• ., v .v' .' Y �� .. ,a r\ \ r ',,• \\ �r r•r IL `;`'a) /' ' • ,•' r rli: et." \\ • .. .psi ,,[[ 1 \` rrr ) \ r+ ,,,... :17 \ ,///' ,{ + '( n, 4b:n'..I�rr+ . .ta:k ,+/r+' yO 'rJ/ J'�r'-at 1L\• QY r+`rr tp �� +� L IN /.��� rr ~ tr rr- { fit{ Senn; ••+ +rrr"' \\ \\ �► •: .. .;fry/ .://////��^ ./ I\ .*, ti\{{ V �r/ /,/'�" \ \' �' +.n•''•r r/r+.. 5{ \'1 r,.'•' '`' Ir .'! ,r'1r`i. \ ",l`t r/,r� J'i \ \ ,{ .,• • • \ '/ \. ry _.+,}..,. \ r" \ \ r) { WeAt`0 rrr tytr rrr..+ C `\s ; +" ��n•�r . J' , :. it n:: !, s%.`�t ' `\ r;/*.e.% �t % \. �r 1'^ SOfa ljJE 147q./'r t 1 \ r'% ,,, ` 44 yf •% sY W t]:� t� ``r++ '{ \ \\t +l r +�" {\ ••'. `,'t . i:e r' •gip: d•,.n'(l�; ;\ \ 'S,l; \. /+�, r J/re '. \a \{ O�� V i fi r {\ \ \ r^/' ! / �{ �} ,.� ryj .6 �(,\,'_. ; ,r il.`r1� lr t 4' „-s4� -c: \\ IS Ira +`r r+r''r \ \a r' ../ O A .): f;.'i ..S ,:i:.;' ` -i ` \ � �t� C, + ' r .,�Y'Yi Q + s, ( I�y�`� ee { `{ jOr'' r/ Y \ rr"��rS,+t rr+c .I, \' ,: `l 'd) `'„r+ GJ�. J�+�/ ,tt''i / <`'-\ '1a` \ _,r`'` `5�' µ \\ \ \` r,/ /� •/,/ry 1` rrr ��Z \ ' t .\ „"\;. • {� �'��; :pis'" ,, .�f�� A \ ��+r � tQJ • `� V'' \,rrr'r /Q1 ^✓ 5 0. r� rr A \ r /C O '.+<.. of, S �• ''o. `'2: 9 '� t 'Y• t v ci .r t •\ + L' f , s,,,, , %,. fie 5 }, Q It \ r r+ fir, \\� ' '/ // \• \t; • CC: \ \ SU \ rY-y'' T gD"'�f5>.:.y a —• \ }.9:y , , r >•' s • 5{ ,�.r r` rrr^' .�' r/ \ 1\ \ Lr'� / q ��rt�t-�'\t��t1 ggt raS )� 1' r• , '.' � ..\ \ �4 a1y+� r' r r + + /+ � + \ r,\r• r af,\ , y \t• \ „ may•... 7 • e. di \ rrr ,r \ \` \•- 8 �.� s J t 0 i i•• a r- r. ' /, "'+ \ \ .:: fat. \ \ f} ♦ �'' ..•> 7i;� , \ ,1 ' Q` �.r /� +1 ....(((( dt. t\ -r r^ r r ��.. i{it? \6 \ 1,% '� �`flP • tJt \ \ - '} / r+I' r..tt;{(n*�+y{�(V `r'' {{ 1 Su, \ +rr+lrr/'/ A. \ / ./. •t f);.!r ':tl.. \t \ y' )t�J \ 'r�,Qg '. . 1 .. \: � )' ' .. . ., .:. .rr W 41L'll` ^" IQ \ Y t` ,, ,,r /,I , • r : af•-. •;i!11 • 1. IS 9 1" Ise---,- / , ,�'`..,\ "4 d�:. ji G AC , t)l/�f�ff \ r+ a >:r. , , 9 \ - lick' e 3 \ � ::,. { y fiTNERN °lame 2 a► \, . rr rr • Vf t, 'L ao \1 +�� b � ` 1k , ,• 6_. �� tf0 • P !F!C AO �% iilp\ , y5 r� '' 9 r i� y" / s A: Ad o!litock 5fT6, !dt ther+af recorded Inv ylosHin9lon; \ is �' r r rp 4 \ 9x 4{' \ `t e /` r PAfZC t�,�� to the P f SKdgit Countyr r/ 'rrr `~fl \\t r r+rr' rtr� /'Tr. •\ Y Gt�� \ 9+f , ' t },�i-1 � , r }Sly •\�I 5� \ \ \0• 0 / + rl, +r.••rr a t$L Qa QS 9h aUgtf ff, rCG4rds 0 ' r� ' \ fl. \ .0". ' �`+'�+ -r+'r^\ �+LA`�? . �� ; �\_ dJ!`rrry'' �7� '9 ��4�t iJ \2' N k�Q 't`'�C/ter/- , . . (:y,GEt�i tAe Sth S4 fat' d frce� o{� t+ +,q '\ ram/ r. .!,'J�� r \ , + �+b' . \ \ \ �A�O 9 r r . _ •..,•,.' Zt feet of West 3r S o e Lon of few. r : - \ }ti\ yr 69 . ' \5 t' ` rrr 3lS' 1 N (19 / /S�'r,r \` Z1� ` ry ` ,- \ k f4CSR tN1N t Sod 7 as would affach Dy the \ • -r , f \s Ord+ronceo. 2 PAC{RC ,aU01A0N i0A /' 6/+r %, Te, • . J1�,. \ , \ \1 • 16 r ,•�1"'�+'� a' ::: .+. ••� %' under 1J1�d oflft V°Iumo 2f. r ^ �n• r \ \ 1 {t . � r'(r \ r- FL 8, AHcdB of ck Shep{al tr6�ofSka$dadountyWashington;r/ , r+/, ^+�\ '7t `rnca \ y9 ../".err'C • \ .�in..•r "r1htitA(', r , 'i,.,aF-- th(Oaryh } t, reCD Itr rrr 1.0 ''\ \ \ C y 9$ ;,, C \ \\ y4,, 4 3 tE}+ •�. '�\ ' • f b� \ \ \ rrr`. ae 'n .Skagit CouR#Y Wosls+ss9{on •\ \ ,/• ' ,j.. t{ t \ v I' ` �!, X' (t S \ \ ' ,...�j{tt7bt r ,;;,.r. \` \ r+ rrr ^/ '/1LQSIChS 011 `� \ \ \ \ \ \ scYl d SJA 3t3tlK Y59?. `'`' \ r SN f \ \ ca in be • ! ` ,r r •/ '^1 • '\ \ \ rebor ?Nth ye44ow P nt with brass ta¢- •��• :,,. ,... • '+ • ' r+"/ +�'r \ ' fndic eS newcrake rr1QnUMe + a0 :.t_ ,.:."` '.. ' ,.•:, \ { r,r �y 1 . • cased con ,rs ?r ,P Pt ;.l 9• �� - \\ / `+ _ ts+dicates new onu{rent 7 JOLLY 'T ,: ' A 1 \ r•tt Existing to tiled m votusrie D. A. ?18 4 " ) 67604i08; 'i ::\ . . -. 1. P XG SYrA}' d� Q tndloges Aecor4 of survey P.O, gC11t Ffr . ts99 kn it Gaunty, wA Ilk s$23 :: .;rt.. " . � Cr�� 3 Qa5i5 of ldearu+n4i T04, Records of S 9 Caupev+tle, ;IUfkflV�Ch DAfE:.• ��, holDD of surveys P 9% PCS V$ 7doU Stotioa5ured.. y For .&7B-ka ' �;chA. Pentox oubie the .�'�JS*r""� �U ka ` ti`HiS 9Ys'.:.;.01eH:.'t IOD D 4ssstsumenintion: and pals'; . ;X t\ ` PrazGdure: field iti_rrnier sed • L v s, survey BouN'D 46 & 50 alSil TGS ._ :: : = cllscx ar: oat 1 ( ) StSRVEY 4N BLOCKS 5 TO A1SAC©R '.,' van x inch • 1DtsttjCATE - _ pgCl�iC AS3Q4CtCi�1 Et, W.M. ... . . . ItT'�'0'R'S day of _ - --- _ "ISOR�i4lEi`l �.�5 N. , R• + 4t4PlGTGN q O R ,i _— VURV SEC 2�' S4CAG4rtCCl}N 'fvA5 sCT�r ; t°=100' Ir,x n: to - sa�ost�d. this ,(�o-�a: NAGORTESt TAT ar :' - of AYots os Pa4e Cl� ( flF fop •���i' C0RTER J BB NG.: ifl7 vr ',ems s,S CERTCA'1 r in Votunze uest of QavidA Jofly county WA s �`�i I�i� gai2i f3bD} 2g8 8804 C�[jx{ r/r+ i� mode by me or :+ at the re $kngitf3, pnocortes. , { } survey ` �• -r ��� _~�^ guile 2SQ ' f resents o re u+rements gQrat R Avsnue, f � �4IAld�� This map correctly rep foor\once • v+ithue5l of a aF A ditots File No. '� 1 f ' under my direction in CP Aot at t95e re4 yy Record;ng �UfltoVlCi1 'e4 0 P t T1 of the Survey pa r ��7i` " BC yUrkoVich • N : _ Skagit un�r Aua'�tor 0, A. Jolly 7597 Certificate 0o• W V-4) PLAte Western Washington Phase II Stormwater Permit Alb i X APPENDIX 7 - Determining Construction Site Sediment Damage Potential The following rating system allows objective evaluation of a particular development site's potential to discharge sediment. Permittees may use the rating system below or develop alternative process designed to identify site-specific features which indicate that the site must be inspected prior to clearing and construction.. Any alternative evaluation process must be documented and provide for equivalent environmental review. Step one is to determine if there is a sediment/erosion sensitive feature downstream of the development site. If there is such a site downstream complete step two, assessment of hydraulic nearness. If there is a sediment/erosion sensitive feature and it is hydraulically near the site then go to step three to determine the construction site sediment transport potential. STEP 1—Sediment/Erosion Sensitive Feature Identification Sediment/erosion sensitive features are areas subject to significant degradation due to the effect of sediment deposition or erosion. Special protection must be provided to protect them. Sediment/erosion sensitive features include but are not limited to: i. Salmonid bearing fresh water streams and their tributaries or freshwater streams that would be Salmonid bearing if not for anthropogenic barriers; t,as) ii. Lakes; \\,( Category I,II, and III wetlands; lv. Marine near-shore habitat; u,, v. Sites containing contaminated soils where erosion could cause dispersal of contaminants;and vi. Steep slopes(25% or greater) associated with one of the above features. Identify any sediment/erosion sensitive features, and proceed to step two.If there are none the assessment is complete. STEP 2—Hydraulic Nearness Assessment Sites are hydraulically near a feature if the pollutant load and peak quantity of runoff from the site will not be naturally attenuated before entering the feature. The conditions that render a site hydraulically near to a feature include,but are not limited to,the following: 144 i. The feature or a buffer to protect the feature is within 200 feet downstream of the site. 9 ii. Runoff from the site is tight-lined to the feature or flows to the feature through a channel or ditch. August 1, 2013, Modified January 16 2015 Appendix 7-Determining Sediment Damage Potential Page I of 3 Western Washington Phase II Municipal Stormwater Permit A site is not hydraulically near a feature if one of the following takes place to provide attenuation before runoff from the site enters the feature: NA i. Sheet flow through a vegetated area with dense ground cover No ii. Flow through a wetland not included as a sensitive feature A iii. Flow through a significant shallow or adverse slope,not in a conveyance channel, between the site and the sensitive feature. Identify any of the sediment/erosion sensitive features from step one that are hydraulically near the site, and proceed to step three. If none of the sediment/erosion sensitive features are hydraulically near the site,the assessment is complete. STEP 3--Construction Site Sediment Transport Potential Using the worksheet below,determine the total points for each development site.Assign points based on the most critical condition that affects 10%or more of the site. If soil testing has been performed on site,the results should be used to determine the f predominant soil type on the site. Otherwise, soil information should be obtained from the county soil survey to determine Hydrologic Soil Group (Table of Engineering Index Properties for step 1.D) and Erosion Potential(Table of Water Features for step 1.E) When using the county soil survey,the dominant soil type may be in question,particularly when the site falls on a boundary between two soil types or when one of two soil types may be present on a site. In this case,the soil type resulting in the most points on the rating system will be I assumed unless site soil tests indicate that another soil type dominates the site. Use the point score from Step 3 to determine whether the development site has a high potential for sediment transport off of the site. Total Score Transport Rating <100 Low >_100 High A high transport rating indicates a higher risk that the site will generate sediment contaminated runoff. August 1, 2013, Modified Janucuy 16, 2015 Appendix 7-Determining Sediment Damage Potential Page 2 of 3 Western Washington Phase II Municipal S or water Permit Construction Site Sediment Transport Potential Worksheet A. Existing slope of site (average, weighted by aerial extent) : Points 2% or less 0 >2-5% 5 >5 - 10% 15 > 10- 15% 30 > 15% 50 etri B. Site Area to be cleared and/or graded: ! urn o <5,000 sq. ft. 0 pi 5 ,000 sq. ft. — I acre > I acres 50 C . Quantity of cut and/or fill on site: __ e I <500 cubic yards 0 freeLt 500 — 5 ,000 cubic yards 5 >5,000 -- 10,000 cubic yards 10 > 10,000 — 20,000 cubic yards 25 >20,000 cubic yards 40 D. Runoff potential of predominant soils (Natural Resources Conservation Service) : Qoc % _ Hydrologic soil group A . 0 Hydrologic soil group B 10 Hydrologic soil group C 20 Hydrologic soil group D 40 E. Erosion Potential of predominant soils (Unified Classification System) : GW, GP, SW, SP soils 0 P - - Dual classifications (OW-GM, GP-GM, GW-GC, GP-GC, SW-SM, SW-SC, SR-SM, SP-SC) 10 GM, GC, SM, SC soils • 20 ML, CL, MH, CH soils 40 F. Surface or Groundwater entering site identified and intercepted 1 : Yes No G. Depth of cut or height of fill > 10 feet: Yes 25 No 0 H. Clearing and grading will occur in the wet season (October 1 — May I ) : Yes 50 No 0 TOTAL POINTS 1 e 1 If no surface or groundwater enters site, give 0 points. August 1, 2013, Modified .ianucoy 16, 2015 Appendix 7- Determining Sediment Damage • Potential. Page 3 of 3 lit -+ �- - 59. �� t 3001 MY 3RD PL. �` BMP Cf05-CONSTRUCTION ENTRANCE: ^J PROVIDE 12'WIDE X 29'LONG (MN) e' pvc A NAC®RYES, 9Ji/ASHINC�TON CONSTRUCTION ACCESS WI CRUSHED (5)WATER METER cam' ROCK BASE 0) PAVEp DRIVEWAY 1 { o LOCATION - - - —__I - I (E)WAIF UNE NE 0 13 co STUB 1N5 IGAS P� O SWALEITO DRAINAGE S.D.ITIG-HTLN OM OVIJL :i GATC 15ASAJ RR ID t Ili NOV .13'2018 m ♦..�...„ 1 0 / EXIST. C 5 I' 4 Jr' a_ /CN. \ . 3RD PLACE W a NEAREST FIRE HYDRANT:#bb4 022 51 { 1 CITY l� � (C{��'S��S Q PSI)APPROX lee'TO NORTHWEST 5'-3" 54'-e° 20 9" �� (ACROSS WEST 3RD PLAcE¢ I TO I THE WEST) v • LciEl I� �,�c-t�� T. D W< tCI (E)CURB CUT ! L YeS‘.l C • �rnP-t •30 :3 'k -) 4111. -..4E)tD,'-,2,...7ABUIWNF bsILT•FEND ` Is-T ——— _ —,�v�:• / �; sIUALE ( v 1 S7�ty+-'> Z } Q I 1. Ho --T�� - -- / •,- ---PAVED DRIVEWAY Niri w I- o BMP GI54: DESIGNATED I Ir Y/ // l:'"'::I. Zst P� W re) r CoWcREtE WASHOUT J ` ��� / / ,yr .+e • • �� —Ill I-.. te) AREA ` m 11 uI�,: / / •• I 140E Vl "Ui- A'3 u _1 N Iv o to \ /' p15Q 5x� _— co Iv 0 1 P R ®S E -� a ..:,•;I.N {�tv�-+c-s�� g � , Z��1c�S aNp►ct��E 1� 51 . o o •• St lw �rY. i va�,ta�f• 4 W\I'l I \ II „•.o!' IOC vctLt?^ T Q &ivra �L Ct in IX 0 1f.t—* { 1 Al i:•.` w CO,,, w o a o w— xo II \� w _ .tr G�/�E3tcZ114-1 C$h'(I• S�"Fi�it--� -- oQ u0u �. �_ a1 I / zO '— d ,/ L ~� �' ~_ I--SILT FENCE U Q z Q 1L x /�' �� NK `fit of pl,IG����� ` �,, ";° lL f —114 tN ��l loot-�- Gi �f L`c I '�J " N O �i �Gi � , 1dE�r��•3512191[ To �k -(JE t SILT PETIGE 1 1--- �E. 4 AIG hl > 3--- �.1?�4 ~D �c7s^S'C-• I p-2� : :•:>:, IL � IM�S - 51$1 Ll'l� o-`''7' / 4, . ' .; :\.. .sue I x —� i tYte 1-� 1 t5e' 3 1 �rvU. 9�5 Got-414'cZ1-)• f 5ni�a�-� 'J .S161.1• 5 12:mu e-ato•eprne-A.AZ . 7.--------------;.- ',.,( )1 \ 1-3MF'G!!T-COI�l9TRUGTL SITE PLAN LEGEND �' 1 ._ ROAD/PARKINCK AREA I y a err CI23-TEMPORARY SOIL. ,,, -� o STOCKPILE LOCATION: COVER tU! / ~- - PAVED SURFACE STRAW OR VISQUEEN SILT'PENCE V T F'L: 19.98E N 6 °43'05'\ • . U ili ARCOND DOWN SLOPE SIDE(5)/ ° .t CaRAVEL SURi AGE o 110' RETAINING WALL V� "` cu F." rr W. 4• H STREE ROW `� I AS NEEDED - - ;PROPERTY UNE — — — 5UILDING SETBACK �\CO =_••'‹ 5'•-•51"\ \ 54-•45' ' UNE OFBLDG. FTPRT. 110' 160E DRAWN BY JAD ------ LINE OF ROOF SCALE 1" = 20' SITE PLAN UTILITY UNE DATE 08/21/2018 REVISED 11/09/18 \NORTH SCALE I" = 20' 0" — N. >< SILT FENCE A'7 ix 44-5 korl-.\c6 1 1JEST 3 R.* Start Here Pb t t ce Z Does the site have 35% Yes See Redevelopment Minimum or more of existing ► Requirements and Flow Chart impervious coverage? (Figure 1-2.4.2). No Does the project convert 3/4 acres or more of vegetation to Does the project result in lawn or landscaped areas, or 5,000 square feet, or No convert 2.5 acres or more of greater, of new plus ► native vegetation to pasture? replaced hard surface area? \No Yes Yes Does the project result in 2,000 square feet, or greater, of new plus All Minimum Requirements replaced hard surface area? apply to the new and replaced hard surfaces and converted Yes No vegetation areas. Does the project have land Minimum Requirements #1 disturbing activities of 7,000 through #5 apply to the new Yes square feet or greater? and replaced hard surfaces and the land disturbed. No V Minimum Requirement#2 applies. Figure I-2.4. 1 Flow Chart for Determining Requirements for New Development DEPARTMENT OF Revised June2015 ECOLOGY Please see http://www.ecy.wa.gov/copyrighf.hfml for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. Pb�c. ZofZ I sue.. Does the project result in 2,000 square feet, or more, of new plus replaced hard surface area? OR Does the land disturbing activity total 7,000 square feet or greater? Yes No Minimum Requirements #1 through #5 apply to the new and replaced hard Minimum Requirement#2 applies. surfaces and the land disturbed. t_ '3d01 \.ICST 3 124 plAkc£ Next Question C?k,GE Zc3F' Does the project add 5,000 square feet or more of new hard surfaces? OR Convert 3/4 acres or more of vegetation to lawn or landscaped areas? OR Convert 2.5 acres or more of native vegetation to pasture? V Yes No All Minimum Requirements apply Next Question to the new hard surfaces and the Is thisa road converted vegetation areas. related project? No Yes Does the project add 5,000 square feet or more of new hard surfaces? Yes No Is the total of new plus replaced hard surfaces Do the new hard V 5,000 square feet or more, surfaces add 50% or No No additional No AND more to the existing 4 does the value of the proposed improvements requirements. hard surfaces within --- , - including interior improvements - exceed the project limits? 50% of the assessed value (or replacement value) of the existing site improvements? Yes All Minimum Requirements apply to the new and replaced q hard surfaces and converted vegetation areas. Yes Figure 1-2.4.2 Flow Chart for Determining Requirements for Redevelopment DEPARTMENT O F Revised June 2015 ECOLOGY Please see hftp://www.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. _ 3 1‘ • Item\ 'Es . . . " . _ ., -,.... ..., i • . : artv.. -- ' ..... _._ 1 1 1 i . • ., . . • . . . . . 4. • .qt 1 .1,: 1' . . . - ::_„: . . . f, .. �•' i f i. �i lffl�'i1 . .. .. { 1! r ..�[ . .,L i ' 1 .1 f � r -`I Q� A S.- 73 CD I W Ca r�2 1g a . • L ,IfH ,fe2y',�° z., y. c0 et— Q a) . r• i ;•.1 /Q`' S ', v v 4 ., ,Igl4a trs4�i ;i ' '7 t it«a,-I l'=k: TA 'r 'l JS :f4 5 ,i 73 L ol dl , ' 1 p j]f+l i ▪4 �' 1. ittt f an^ ` it `� .... • - ' //rt ' \a Iy .ti ! �' rifffK , r ri L Co �1 !J� P'. • • 1 T� 1 ` y fr ' .5n1 ilr \• U ll: f 1 , �,`1 ) '�LV • 1 \ VR' 1;'Jy'f CO /�p809 as) is • 44 Ib.. ya 4• ( . ,4� $Wk./ • 7t: ?t + '�yV°i� i, r 1 illA f : 4 ;If �n r'r .., yT { �4 . § � .t}t V �'• /oY75 x'+s�' 'Mp+�� Iii l .laj i r' )1 ryl W `�, 1TSom. 12 ^77,"?l T*' 4. 1alf f /.r. 'VI,: (! , 4. r(r:. i�i �/C '� ^}' �, 5�,'S'S} r,i' Jn 'F a.fp Z. •1 4 � . , , i L C1V�m)►, • /N� .� • I • VS.I{.' • 1.R.rl +.. ♦r` •w f :t. 't\ ,Y J� t,.fG .a) W U �J' (�� .:`�\ >C. -•-i �Y lc� • °.- , x4 t . L , Ctl i !� yl nk.,( 4 �lJ .� �~ C co y 'l .•b , S 1 I • « P� O :M- I t Y {RT ki �O�r 1 4.Ji. •, f ` f CD 0I :�•Nls• • f • -,..• co—ae.. � . it� 1,4 KL �•[[�y�yll aa.tt ��//�� L �! ^ r t I S �` k ��(•' ti �4re;v' ' 4,,c...,Y'�' ♦.. • '• \1S ' .Gy{ 'I •i r CV S'1 ) f tij. •.i� <"k..}. . �wyO {R'� yr. �V., y\�.4 1. , r `.Ltt-5 Si. �• l* 1 r .• t✓t° ,,� tom. `"r„x )"t� tray�., 5.< - ;r"R•+n s f 1 e�.'J e� i�.11 ai ,yam p��( 'LV i tT1 •n r y 1A Fri n ` •Y ° � ..t� C •� Q 0 B ��9 tQ, �c .a +ri �!rn- + VI/ ' �tw4'� [ , c13 Oroi .. . as • � �. rJ J T i I Y.h'� i f'�J+r V C U ���+ap• CD 1[.®� •rn�Mf tr;tf r _ rT !J tr Jry� f '.' Ay .t • ' . 2. LIA (d A ® ' i' Imo: + N . �a pi a 7 ';. h f� { 1� -...... { t' ..Cf co \Yj b C .mod + t. f5 I {`"n v ' 4?s.• zo L (/� 1 t }.�� co CC X r yea i q: • co �.A _~ 4-1 pq� ire,- [ S . . . O CO Y 0irZf Y • t• i r t J�flt: ! f 1 , 1� • c. v 1 Ili Ir +ar i ! ° r /1� ® y 1 y. �r,� C 1 t <I r CIy 1 F, i . 'l V�/ w • o I'. ,: 1. ( 4( � r ub '�}.JI'' i'1 ' .. -• '�,,'^^� /(� i Lco 'al,e' � ` • y! tl" : t(, P J , t ^11: L < ',id CL ' V {l i/k+ F % i 1a,Iih� , ‘Or Y. 1.. ti+. co 4, � II[ II 1 '{�+ �l ICC ,� �'m 03 ., f --iKl' , J �3,°^r"�y.8 �))) F 4,.... .. O ® .13 - • a'�d r\ i t*? •�'VY)L L • �'u 0CI 0 > �1 4, r`' r n'vi' 32tioNdli 1▪ 1i ' f i of CO 0CD Se 15) •Y p\• :. • r ` � i' ,'S a� ti' h t��*L(1 /1�;fty,� k' + • � n. I • . . `� / 1��,,, .^z O } IJ F' `� ,^T'll,t I`� 3kr �lyl, P ;' r 1 c { C . • ` .PM ® ii q�� CIS ��_ .r l r, 1 � 4T `' � OFF_• -$41• 1 ' f1 "r. +'1% t,{4, 1 [ I Si ,p�� � •�f la) /•� 0 �', - Y r) y V' i1} ,''J / •1r p rl L J` .^ : . 1 ; ' 'k^4 4 ` •^ 0 via U IVa r, P.atzy a t r.4114 .t:'yf , 11. 11 J 1 4" f rr Yr i l � {Pi IL` J! ` 5rC1- If �� ,{ � {NUJ K it• }� d �a ow ,,f� •• I.-- ,'•• "'i'7 "� 11. M 0 �!` , •r• N t y7 ry otli �li I/ t 6• • 4 ! V� ry i• 4 Stu . e `• ' 0. +�L� A n �' rJ�i +� �."'. ' 4 rJ�>.s. .•VF 1* <( rj? 1):1 r• x. i 1, > ,ry7 ! ! , lr 4'vi)r` , 711 II r[[%%"tt" rt -4. r YI.•• arlt •y t ,di r P .1b,,5 A t t0 r Iry fl WAS ) /. . �„ 61 iI +` ' FI_I' 1 -t , t, •il70 Ia Y17'1' J,. �} , I f . ' J �, ' . \ r ,, . .r„ n + •:•, .r it � ' � .41 I3V;t `��1y4br$b• V • kt , ' ', s• Lr+ :1 d� • ie ,• '' '�yi y` 1 I�ur \, JI� ' a' ' fit r�,fr(y��„'•6t��S�1A.�'G` 'it. ,t <• y'S 0� .Ft. y..� "q 4/ YS' ! } 1'! , F 'K 1 {,y)S + 1: 0 it '�11 0 A.' .e� A : �,LS,4 J S1 1 �. p��, 1 f' ''((��yy}},,��yyrr ' L iii 11r!^1}+} I J ric r.•q�'1�.i�.^rJ • •F(s <75'`t • •P : •ti im • •hs 1 r 0l u<tt c l'I Fs ' 't fl `� fl!•TS . ' .j7♦ • N� .' : / ��4 f + .{I gS "'f� / yy t 4� ,.� '1�yYµ� •t� ; , . ' p }7 �� i'1� Wilt'?S ' 1 '� ' ''.f� ��� ; y,�q ,t!2tr;. " pi I • 44 IZIE AS •'16 • ••sc •CD -CS CDLIP, - • ion ;: ;;ffj�, + a r1,' al!Atvy !i, 2 ° t r St i nGY �`5.+' ' ' �'•y �a '� 1- 6 t . .r 114,•il5 0.��x, i'�A v, i;t a ,1 at �J j,1 , (��, ^ y r J 5. r Y 1 -d - 'y,� K'IE ,i'�lJt �y , • .�y[n ,�'� , r! J „7 �y� • C Cl) � .rar�r,~�'j. �� " S`;tf `h� p '� a 11 hvi- ,r tY [I��` ,t+t .f7r >' f a ¢'• ?' y�l r �C ayYl `. ^t vi { ,,,t+ L. ' i .l4 1�. • 'i r. .t h_ S�Ir 'Qpp ,.`i'�,1, It Jul 3 h W • ` ' art �k�' t:tfcy'�`i „ P.yr J ..; 1.3' ti t A 4 .A"Ir� v ,,•J Yry /�L`p /A` _ NrrF,i � y','lfi�`tj+l ,p/ 'A ; 4t¢ l+�el.,ry Y _ �� ti � . �� � t,�; +.r �,iY`.t Y{ IktF 0 O W/ �/ J% 1 '11i4 t �r�l{/ .,�' J `s ref. I a �SA ' 4�^C�? ¢9�'_ .. /� pAp�' n .t t ' y ' .7'a r i a /I L , r J `R::l� w ip rr',T.N 0 .� .F•+ nL ' {.rr�Nts,iwA '�tf a �< _ � • 9� �y��•��1• ' A"' U'.`V'p Ali (� < � 7 '' 1 Y v�J y " pr, i r x 7 L £ ,{'J/GF""t ,�JJ'f�� .� i lSt't�,�6 }'.y •fat S•• '.J>i1 5 • sj.y.� ,l,,. -i-. .0 -� 1 • ,` \ �. '} �' • LJ„ � . /Y' '.Vi �A,IS G {Y.� t , r1F4 V � 5 11 �(� 1 L. 0 /l _ �l 0 411..11 i ,0 3 t y •`• ra" JM1tI. r T' }s {T tr feKdyWt ' {{' r' r �v - a J /� L3� �. MAY E' C R . rb`a 1y Ow.(lF a r »y ,1r '. . ,qyr = � N /�/\ ' Sge +�. ,a' t,�< .- Y S 7�S`t J �:3 y?' T1�V' •s`f''• t g 4'Co •�{F' 1. 1 .5 ® �' j /� �.:J141P� i `'' p ' f I p i.. ,1��'N�.>f�4 y S+oL ^ti - .y y3`,ry�i *�,1"~Y�4abj 7FF I iy . �.w ' "`�q•'• JP t' Ca L. 1l� �J .�..R.'�+.�p.''\�1'� ,Mly'^ ,•i� f1r;a ' +"FC+CrI:Y�iR x..' i n+ )��:.'IL. 1. j Y, • }�� EL Il �d r ( . '^ 9i. � {VLrn�4•+ .rs „ �� Al` y+�� }�t w �! �� a` Y}�1' " fry ]... ••� CO Ivl 'S(' Y ,f 7�' `X ..�1 1 l �..�, r W.r M'l' i f ' N r �� co l y. V ` r ♦ a {. . .I , i" urr .Ii ,-0ICt Ypj,• +t ? 1 v' ,�.'T�tr 1 �iTMr �...�}�L / ,�''J cit .'QQ//��yyjj 'dq'a ,`•L' lizzi` r r,rjar Viw1�Yfr'r` ��J ".1�y I '4 �''"�J / i.1 r�� , .S. r,��Fs yrt�e�l� ,' Y," ' y` .. S 1 t , -1 U L • Y' • J4Ry4 L� 41L• Y �l.•a..TV! u. t t tiJ � /�) 0 t � ...�a� _ _ 4L r ('" � � • no? ->� .* -sits' /.� 'I • , r' i • ') WLLI a sm /'1 G'� � 9ai .Z �'�' , 'a ` n '•�+��}� ,D;, yN r r'Tti .) ., •i-+ `►' „per x ,' .t$ •�f 3g ,•T y s co ® tr � .Il' �f' T.*,c9.',P.dt mt:CI* Oki4:et.Virib 2��i �•T �b �t..��f t VJ K..r ' , Sri aSI,+IrC/+t^'! L t• p .• R 4: it 5 U /� 103 CD co s. miC .�,.,I S•� Hr'P( "da,' < ro rar 'tti%:�C-4:4 Apt , •I'Zy ��„�'a" - r Ir ° Ly , v'' a ♦__ i.� 101D ..� ® "t yq ,{gv j l � +s.. r }•�UJ �'Dt ry , J r It t ` . 13 '17<Y 11CL I `Z D + .v, '�U• ✓�-.� '�1rnA r a 44�\ • +. , II `L: ..✓�/ ��� . 'h ^'. - y�,,y �'� !a 1� err 4 i 4`. r y1 L K _ „ y _ �ltr{d11 ,� i♦� tl'y , T' 11f' �1.'\.••.,� 1 .n'/ . h4�Pa IJrl' {`{,l Iu'; `� C ca 1r.. a�r:r.. ra tY, �` rJ.>7a r ak ?\t l4. A , x,%- "'1 ® � r tV„ 9 „ , {sfa - It .rt,. , L < Jrv. Zr00 �e♦) (�%1 Y� � F-rt, A� ,�h( r;l�, r `Wr 3r�?�4.r1.5tri�V • L V'a 1N+� , K •n n • t� , ® W a" r t N``C I .fr t�R'S:!y \` lrl '.� wal•k< ..'1•< /r y 0• ,i'`an 4.I 4-is • • A co �..J ''� -•/P ,AC,IK • 1 l may-F aJ, < ,1 ;, ..... T r �s , 's'(' t,' f is ,tom a '�' n; a.) t`i<y'y�"{ rrt. _r 4.` a Ptht�r, J ti,,y t e I •j !' ,�' fw� �a�.• r� tf d �� 1 �/ 1 Rr„✓ V J �.�' yJ O S--' ,jt i1 122w '1 '1`¢t�IF.r''� '•'hit,. y' • �{, I��, ri t DC ' •rrJ 3 'P ,i S'}Y`�j''` ® •7` j�wd al o co Oyu ri t •q sb •p•. � �y !J'r 4� sf' t r At � � 'i:7� L { ,. .; :he r "�vr 1 a1 yr o } �- t ri S„ !t f Jr <' ,[, iY a . . JY*. iv•(Y,�t) r ,m q !7. f• iK 1, ' t i It'c4^t 'Lh r r. Q �_ It III >11 • ,a �k' 4 y a t'•Y • ! ��' °' cGul, y tr 9 ' iE:'"ar'• f' � 1y_ e . . PO' _. +t e ' TF M,t f I S "AV ' Ry 1 f jJ^(�1,�.".a'y`l+s' j? O 4.d > tf• �P�1'� Li� �tT � � �'�'� ' h 'r"'4^" '�} °� � i *r?y�C'�kV`�}S t�1,� 1.}�, M N Pehe "lw • ,f',I 1n '{''_'. 1�:"liilre >t � xt i,�p!`v'�t . . ®_ r,,,ccc , Y t �p1� l ':•jlb� 1 tl ,t I�r S �IFS",�iySt�, zn �1}��q /i��^� A 1 1 44 :i `'' L. I t i( x�f 7Y ri' \ '� Vs rt i�''�-t'J.+fa s$ 7.1`SV�:�r r�'�fy�_y -'rt' .1. ® Ct. E d� {�L CD 0 .,/'[�t}`�l•, j, {�'p C - 1' Tl ,sx A • S. �V , � tsyi,r� v1,4nL"v''Lz J+"'` 'r.Tg'L'ty • (y I Z� lSr( l / Rr7 t trJ �yG� ,< ',r''YH�,,,S.7)a }+ . iiii SEM X�/` •'itua A it tl �: t � � 1•. ' i; 't '^rA.tlrycP < ngr$^>u!r i W �R'ri ''V •� �J tu /�► A� }S/ I�t�Yv I 1 r 1 r :;tt� i f C!i >c ! � r' � " •��I a + .kv7 aa) O ::�a ,•;r! 1 +'`` V T' }r ^t� ;t 1(�i I• ji ' � e , ',i �f 5 d,Hc 'Ir 4+0 CD Cl- . n r'7 T A .�• �. Ic,7'i wC � i Ja >. '4. r CO /� Ca C , ti'�1''.•riill .•7`n�. ., ,. c `\` ._... . t ' f ✓ r < ;'�'• J LL LL i0 6K h� 8 �4,0 lt 1tOt.,- t ) , e . '1S 1 II J5'f s ) a y� + xY 3 t,� •F �'L' M � .`•,Vr-� Z' '' t`) }. Q 1 r ( , 'r+}`�l l 'Z _ .-: �i ) ✓ 1 { X , `,`?IAbY Jr r 1 4v .• 1.'eA I tc t + ` 4' 4 \� t '!'• es ` "X•i EyiJ '1k �.ir f '1� f �{• 2• r '. tt / �J ':� ) '� u.0 �p ii. �• IS i �. 1 6 11 (tt^ p ' f Si �� Aa•' , &Ad S �'I'S { �+(,I .`C• {4 (N- J rY^may,•` Yb q L S' s t • I /r. J (Q/,�, 4 ti y NW ® �. S 4. amF 't , {PL' F ,r { I1�,'Yr • •'Z •yr F' T ,fty `Fc$•f (L X• -, f r `0,1 dt TK , rLyJ': yv' 3'`1 1•4 i1 • �}.lJi �x rr t rk O ® CD �" �_ • re e I�13 cp • • •il:L :']II ,i 1 J )i \ '�j'• l s1,t 1 1 �r•'�'1' Rk - : ly�.�� `� ,fy�agN d(�tkt �, V /q1s CO�r01�• • •O f'I l 4 1 #. Ys i.4.1 ,rsiff _, t 1 . , K�64� 1'"-Il *. �{� )gt �..lt')/ II 2 41' ,d x /� .yyt h . , 't: ,r,✓� I.1{a�. J y f v sflc4 $ ,} r fr ery .1"i,,t y}, �,���, f 0 0 A "1\iJ\"` l� :v 1fFj 1(:ti` 1t J, 1� 4• ? .1af i11 . t1- , %.,/rf r r•4v • •i „i, 9.. . `'m '°I1 r1 A IPO £ iI. `, i, , 't , 1., J~ si .0.1� dtR—a'! r t y11i r f) i1.S � .lp'.f ,. , —fir t r A . r f, \ I V r r J '7p ( t T L ® ��a .n I. 1 �'e 4 '� % t 1 r ) a ,r .CdJ�x/ {' r}r7 « ;t � ,Q� V CO CO ` : 3 t, r r r , ,e ' * 4 r G >" `._ , It Y1 IIjJi+ ,d d CD " /}� , 4 e . '%5, S .�rxY l\ jr1 .(I°I s /J ^b ,}"artt(t r (! F} ], �� D n'r /\/V� C+yj��J{�y> ✓ 1 /• , ?" t, r 1a n T{'.MI �gAr/��. .{O,, i \hrt7'f} 1F v. ^Aire y _ 970 'y+ t� , y"1 trill t} J,�S' \ \7p s 1i4 , S +".. fi9n'//•. e'1r 4y fMi. g� ci OOYW/ /� r1• { yy tr t\ W n"',zY f� - A ' I �,,��.y", `4 t !'r .4 4 44f Ake, x`�} i . . o6�.. . W • ■ } ` +ILiA�, 4.y�i Li rue �' 4!f 7,j4 47{'lfrlsy��s �r�i dPt � 1 lrr :to* "!�t f" ,� -+ s }s yy Q gyCD m/ -1 y,P`I�j. �,5 I {••� i. `t-ki1 p ! ( 1 : 0 t d'+1 i. pi 1� ' '� Pry. 1'k °N'OW •.�P t JY1N 1 tI•(t .Y�\ CI) _] pI� ,/�^/�k { R^�\t �\tY „ 1j� ftrv1� 4 f �i / t 1 P 1 4 {fwyrG 'A VNs 1 i / )\ 1-Ill }}y��J y VV � P"�^ o 1 Y. '}" i ' 5:• \r•°1� l yU \ > otf�� .t�t ?� Iti4.15','�' fM1' PJ,. ,' s � �x`��/fit °Xje/ rr d44 ,1 Q ' vi) ` e , ,' '°s S L-l'4 a >� •/.)'e te, • .,S1e,.� . . 7 pf ' 4%� h{,yin �.s• +F„ ,t 13 lie 7r4°.G �i ' �{7, !_.'' L ♦ k ..i . .7. .4,I 1 I rt I `•\ ! �,,tj1 rx.:; srf> 4 r r '),t.„!�f i 7' Y2 /y7 11 r 'CZ.. Illy,. P'�I- /� 0.) an 0 •., ,, i� 1 , s felt It t •ido c .it'ts s :to V ntF 0 ,I1 I• .2/ V/4 Gi i 4(•i torYeri - ,'{ SrrT lvy1.. ® L✓ ,� I, 'Pi. �r1 ' y-• i" . • 4 ib, . 1'f t op - 1r�1 a; J, �` in) W : Y Jr/ ' t. r C sly j . ' 11,N � {� : fv f' . ^ IJ,: �'c�4 :,: f�'• �\ rlll� I"f' 'Y,k , hri - bet {tr'.O b •? • f :' �1~t '?l sjr .�• 4,0' 4/ 'Y < .k�4(Y { T: 'V 4 �'n,'FC�'µ �� �_ /n ) 'w! r r , :x6+' "`tf` liti 'a / * d Cyr 1 i,�y ttlif''f,)Y' �iiojX!i .� ti i ® (,�•�, rn \{) 7i � , �. -+J 4 ' i., . / r n 're ai p`Yry'��)_^ I `��\ •[.r/.J)'• Y I :rr. �..d rn ° L. C. it tt b 7 f 'R < t I r tic:: ,p ) f. f. J ,e04,r fi, .Y , ( r t t CD �� t' kl ki. . '` j$ 1 U k dh^�'y S 1 } , 'okra it �� "4 ,f k .d:5'>CI � { ..�P �B/ Ali )x, . 111 ,t f - f p 1 ^y nisi G I4 `t r,' \`As Ir t� .Yf� - I t q - Yi t A 'a 1 4 } r • y CD �tu� � � ., • }�1.5 n '! ;, '� "i`t'.. ei d loft•' ,. >f 'I I,Y•. �,. i`t41 iiml I • , {y�F}jv S `5 CO ,op.,t t/�' r6, r ell .,.., a 4, , ,4 f � ,6�k� � f k?. ...� • 00 IImIl II O �,b 'C' et R q" 4d 1�.•t .1 ' " ' • t`ef �`)r) t v' C" 1`^` 'vas: ! Irp;e._.,.._._ O =r� 494 'P? r i( ' `` t r 4 .( ftii Cr �>-� V/ 1 l:k t F I5+ 94'I • 1 a ) C r t', , '� I . '{ ` 1 1 tam t P l+p y��w.,ny ll er I f JM1M�qick __-9999 f �, ( ,,,fir �ppx�x '•./�+ mod' Q n� ,�, Mic, \yy?AL '• n 'err ' K � k`' A R'. '•b ) I fif Jf°M} ••�i.zt 1} r �LF /may CD 5''_ f+y+ � LA j' rt yt 17� ){ ;�d '�/r 44n rl� ai t V P�� e I l 1 �t• ® 6 tl pp�er ' _ am-,- OY _• / 1• A y! `hi(•, C t ....' r r 1• J; i; j t I Aja '}�� {(, ., �k] .f `" t .T "f�J• � / j4' k/ CJ' Ey ! O F ! O �_ f ua s � � II ti el. / 1 •l � 1'2v. J (tit 1. { R O till - IA I4 1 44 I.tt'• / i Y ✓ I vb.". M y12JttI � u,� I `,tad • , e �tti ° I r1I. —S f2 �.✓ 1j; 1�rifi II - F AI.I ' �t,Xir�VS , 1T: CD PA\ Cfi\i'� a y' :‘.`31,•:r°7j w' y '+/ /` .FC :St i 1 ,i i Y/ C7 {p CJ ,4 r\�i,raSty t 6trt ' ft ADX e• w st ; y' o CD � J ,rQe 7 . ' fit•f ,fi r t I . t�3' w .,I 1f(it at4. 1' , M1'4"c e I-4- r( y, tp J7 5 ip le 1 Is. I f y 7�{� 1 c ,.,....so yy wY . t ' f 1 4t' i (y /I '{'��q}• lr �� 1 1 - i n. r .4 "1 ,N I` Fa `'1 '•'• , ��, 1 _.{; •f( r7 i.,• —1,. ^ y .�. i ,,... I. , / 7�' At1 ; 195. '.. •P I t ! �q U CO U J - IIo (s 1 J i(� �. ' n ,4'ds•� i • 111 9 N % 4 4 4! p'l f • {C .11 1�1 t o I , k. /�/-� 1 (M I°T> M r i'y�.�R,•:�e.r 4 eJ rt'.,.f..` rm C2_ "0 T}I f ill 1t Sr t,. Vy 4 1 It " •r t 1 •} f -Cr ri 1, • ND /IZ 1;1 it 1 ` r f F. .r 1,f ,•- i 4"i�, !F 1 4.1 "y Jy. • gal I11 ter 1 1., �i , ���11/4 77 �s • 1 1y 1y 1 4 1r 0 f ,Rx ` . �:1- Icy 4" ett If1 / 11' - jl/ ^•wtP/ 14 ti .t y Ir^:4;; 3 In. , J` tf • fl *4,F. V tK pA 4 P‘17 �:.�i ri es'a a lt `• v ,, AFk7Ft • r � Z.c 'd < > f , f .. fl ,r t4 /1+ +t)iF ttr� t • t: :, .t.�e � , r i 'i • :&' . _I • a , tl. I t . P ..t r t -4 L Q) i . Q_ j 0 Cli E r • -0 (i ,rC� V \ D', S_ ` .. r r '' r .i 'c� CD 0 7• / 1 n r a ski-Q) .�, •)��,* o 7 ® '~d ��yyJS `� F�V'u•' ' ?t"�wrt� , TrfK61 ` �' r / 00 n • • • •o`� ' �� CO Os crir ' ` • ,y :. ` ,Al.. f ! ;w I j 1!p , .11 CI) (II O C CDUSatL yN C) W 0 • a. .g_s A e E (n 1DA tl : it , -.e" t 1 ' ' t -. S r 0 , •. , f �' CD Cy 0 C CD 7 y /.Ir r T t r t CO • / � It F1 fyD ` (1.) . ` I ` LU �y O v ) ANN III II a) • {gam • i i ;. d , '. " .t `I - C III IC ... t<< . Z o 0 C "'‘'i'r 1 �j ' I ;1 C a) I 7 N 1 i•1 i: s4g" r � C, r 1 I ,'f •�t 1i' ^^ Sii.f� 3�.1.a `dam L.L. 0 SUMS villa Loo /.w�..r 0 .//y�y�� //qq - • r. .t2Sy.K 'Sa rky ``,,,�, : rf . { ,K to 1�'!, ' Yf4 �4,, ,y f_ If 1 w T,. 1 c Ji , r5 + �:' ✓ N� +l .+ „ 1 N'. . �13E .r q,��v ✓F�i•S �' l. ,f y! '�.t;: f' y{, + a % toil �_r .�- Jf � �Y,v 0.1Y ,•r � \ . (�. �> ,,,( � .fjt= 'f1�J,�� , e'/ CI• ! +. a`M, ` +Yn! +4, , .+^t^ p>SN + 'rl7, ice . ! }t brJc pr f 4 r x� tr ,1+ t CYyiP-- S� v $ t i�,'�" 4 /yyc, 3".. I ('�y`*� +I cx v[ 1 j. ; " w.ti,:. Jhw r ` "w -t - L' t44 , r ,'yS! Y'41N+f 'i��. �'F't V< y'3 3' ''r '4 tit Y/YJ ' "ry.S,' f ✓ 1 7r,yl [ 20,',,,, ,, x J39grJe/ 1 :ya �'-rvY:�y ' ,J Y ✓}e6 J-'err ^y�, �•. ` l 1 J'rr 2,!',i`.�ttkiI ,:iii f•'y > „ , -i1 i•. . ✓At p. .al,{' ,t i ccipt Y'!Slr' +7, F it •d--w f . ,�� ,4e .. "'d,{r�. ;;;;'k *Pd54..1r� V S'��'�l� ` ., i{,Toir 4 y 1� C[ 7�. i v CN�� }, i' � " ® ",5i, ^9i ,.��,,rf' ,4,:. . . - ;f•f9 kJF6 / 't. 1} ! P Y y NA yyr ..71J i )rii�' . [(il(i ,/ ,: ,y�r ,l a . 4.• . ae+rp I . , ZJ >i ,f t. (�) + Y' s. � . l0 1 Z .Itty 12r 41 (Ja fr'yy+" J'�'! . ' - ' + , / J • . ,X� rt. /-' 2 J iY 1. •" • plitar i.\i w • J . ,•k . 9 , 'r .• . • 'j�p...;ivrv4., lr .1 ,, , 41 y• ���/B,- iy,• • ] wl: , .3G1 _ r I fFr f t° it ,/ d a" O' ¢ i ....at d y it+�J!ii.t 1 . l�ar'` (( _'. �`'' y,P Co 14 ad,J lig fr. g V i� ya i4�' -• /� S J� J F $d/ r -43 , � n'4..L. i.Y/E �v... k y I of ' t rYr w �• 49 1 r G1a1y P +?' ,.ar fYlt ' N t. ♦i • M '1..! t + J,+ J e' • rgr-4'1 J i'-.1LJr. ` d'•�St}Zw+ (( ! +� f rr ! J at-J 1Y.yf 7 ,+ r r. { .�'� r'L +'Ill '� 7 CD v :-. ;�1� j�1! Al/ : ' 'tell"'1• t i � J yKyp P Yy'', �r f Yl ` 6 /\(V��L�/� t• F [r , a f1 d . { )4, S'.l q. �,(t``I ll.72 ` R! 1 4.` , 1 "i'�(4M-1-1 COC !' ����{,J , a • .�r �<� ;r l r{ ' r/,low 1 f RrFf j¢Na ,4>,£Y f f ,,^17 k h F L• r` 14�SiI s— 123 �} �d SSA A f,f k r �/ �fJ ,/{ J,f'� }, r f � ^Jw,�J,f, ', � n �YFr+, ti1 1'C irk ��P lr� .l k V CN CO V' �;rS _..�'r v 1• 1}` ,y ll'. F (. J.I.i•' 4 'N,, •r .F. . 0 q 1 P. i�'i $'Y a (�, U CA as) 4�y Yr r �-` Yl r �1.' / , r f`• I� �r1 JS �S"i-F ,�r�gI . ` • w,"ifsH' ,Vj.$ 1/r W 23 OCT.lda Y� ----+.v a ,: f 7 J ! .T �Y y• • f v r'�:JJ- 1e .7q.`w !X' ! U �^• Y�11� -• k ,yyy,',ft '.._ 1� � /J rlf fr �( av/F f J . ! h 1�`.2 �F Jj SFw �,Afe /I1 O • ^ �' 7 (tr Y g' '""� •r � f'r ! v., 1 .: f -•i i 6 1g�3 •iii + IY , n, r 4r 1 Y � q L �q..J {ry .; ' " t rk i: r I . C y "71/ la— n EFr n 3 r{, �y`g N41. �' w. il ,+s 1. y-. 'V ® -vi4� '' '� r�p / ar / 4){�.� . bt � `, i ,7,Nrk SJ17Ir� ! "- uo • 4 x �'.' 0 rm ��J,J l� ' �t ,pi ✓ j 'n l+, fn , 111 ; n !`' , 1�; 7; • }�_ ` ..ir-x}� }!J f ! // F+. J. ,1 .;F WPM '9• Y, . )14.92041t, r� Y r + �Y • ' �.09 CD 0.!�) { ,.>; :, : f`te f, r Il q !•,P r a l'i fa t!F y , iFA (� 0_ .�lL�fl per�p n ,Yi _ �t ��Jr r/ J- i..� -,�',� Y#�7 - .Y 'fi ` nz r'>• .{' * qJ o •1.• r' Cil `V ieie ' r .if • J 1 3 + li� ' A rV s r 7,,,• 1 1 i 1`S4 (�_ '� J �l • ' .f Ir r°;� � ]r�K"aw Pif1•,�} ((.f w Ipl tF r Al •-�N� J� 4 4 mr ( .'. 1 i 1 y , fir , jrNrj t� • 1r � n f��� ��r • tl A ' f � fiC . .4 t V C CD 03) rJ"' . >- J f �< .`1 + IN '. ti. „r •t gyp.,[. •a •�'. .; ' J /? ``' , ' r t r V vE r� Yr Tif C f r - ! y �, / r / J J'J a f '!J c I > v r .yCY) ' co Qp\gyp .rr l $$ .1 • r, • J 1•V V ''' w 4 t ,ru• (, ' ,`•+ y 'e Q 'be C �'�' 5... J' : 1'bt.. i �1 f tij Y.y 1 '1q Y.2. ( f %T w +kY(t IIrLt{.� I�FJ�i rti 41+4 7 �qr\ U - ll C) J • �� �+' ,� �, //J: ( pis rly 515 ` 51 C YaC(i ,j( Isro { }f} ntr+� 1` .: rt` in as t aG u am' A r,gM w { i y lrw /t S Sy , s x (Y Rr' j r F fT Af1� !° ,Aa f• b }v F�+ y IJ fT 4J in �; � F— fY .) v ~� r k �a 1 f ' r id L J� �`�i !j M rf �d✓ t , iY 4i� L -.e.—• ~ws C /f� F r AL r r' / • y,re i , t r"'Viw1f c t11a� •Q ? • Ji j73 ® �1 ? �*1 �'� >, 4 f :F '' ra 'F Y A , y'v' +pi'YJ 3' "y3 ry . i ,fy • .I ' 'M\r $' ' Fyv 111`f�,/� `tiv �� : , .�+t r' 'i• 9 �'�Wvvq•'i '�"1\ {{t SPry J�I ant•. ' } '�y+(�M' [ D rC yA,R`F �Y f. ' l y.,gt4.`+"pP'1¢/1.'1'r ��} i!"r�) �,;i{J.. '4 -.r .*- , '? et .) �t g4/,r 'yf ;,� t ! y,.Y ,1 f a'/ •11�Y`''Jdi. 1 iti' , f�'�!Sj '' i.^ CZ O ® • '1 1 IJ 1 . 1 #F w J . 'w , f 1 `�,xG '� ' n� y .l'�"x ".{�(� CL v) W 11 ��, ?, {t,l,l1 a ' �(`W• ,r,` o9t '1 r • C4• iv1t 'L AY. ,! �1iw .tot is) I_ aY`' „ft.,. y+ �,/ and '/�B �,' /�/'� 4 1:11 i> t ; di t� i1` v ..t/�( `6�i4 q ck �rki• .. l�Sr a {. . r l�Y.rtr- ' ti, 12 /� eD o Ca V 1..L� k ox, u l t 1 . } fi n V 4Tisp.:bz hl a`r v )�L ' :1?'" 4rr � { s � f ' ''• I4b. i , - r • 1_ O i ,c ✓t-1.< 114 ',: w' tA �7 G 1' i 1 , w1i � !^ 1 5�,.• FWWW` 1. v' .fC ® kyhau° al' ' )� `'fin d I ' ir ' ' r '? ' J� 1�x1 J �' ....q3.51. iw ¢ �' CO • co - —la sr JR,� �. t3A r� ? �' iy( ?C�a s•j� y .J� 1 � o a� .8� °z� "� k, �sw � ti�,� ' Sr :r�1 Z t` t nit • 'KG ` O r c e YJ �+, s F Fro 3' 1 ' '. •t t r a 'gar: S"' Y ; % . +�£'fi 4i p"^, dr ter ,!Y l 424 y� �` y dr• r�� qA CD ® U ryY�^{L��t )lli 4 l '+�YvA'r 1� � i`t i1 ilf r FJ 44 ? %}aVpW • t• ' 5�1y 1 l4 J. \ f • 0 sr`[r4A ' `'J 'PAC .t �,c ' 1� ` '1 F f;� +, k . ?qz co c w'{'A V1 ftw� J3 J••yJi .tv'� .`l,� • lil `A �` ,M,' c`r y., 1 ti { 1.j • p� y y�§ 1 . ' t 1 ` w ' '�EY{ '� tau A�1 �is ry sll t �tY1 �. `�-' �i•� e2.f 1 J1,11144411 f J F ,/ 7 � '� • � t. i t Fr 0 �.. tM a vt + s j� ytxS' rr ' F Pis y x ok . S cp p� co LI SP' " f t t 1 Pl id �Y1a . ..(�A t - !^ std• n lL ,''r , „�Qgy,� a rsLJ' \f '� !i ® L <f r'1 J• +•. z\ e 1,.{.Y •1 ,f , y �Y/ FtY :x 4r iTM?+' , '5'i*i �yp ' @� 1 • • CO pa N J t kf• 2., v va J '._ a'1 E° SG ti • ® WC Y, m� �i• 7k 4 .�;.. r. a, r Su d ') ` .n ' : Ire v rFP `r1'hr . >�.A .� 2"ty�, i. Yyr :�w' x h7y,' �, Y . A•.. i4 7 {5 ( v}i�dn` Y'`'� ' tµ, C �- 1� 1 1 ) f�a.'. ,.hy .r �'�I 1 a 1 { l ! ..NA, M 4 4 � .fiir �!• q,• ! 4• `w , tl�$,. A ' 1• i° t,.L r! 3r r tt. Yri�l xT � !'�� +� SL � 1,'i .t�„ T° 9�! a 'S 'aiv+ft..• r ,ti'�i :l{ . + 1 , t, `i ` }S Rtnr. '++ rf . ' •® .,� 0 /`} o Lh' ` ' wr.:>� 4i `r\� ! (f . y+ <? r '' y , ,F� '1 y ' t { i>7r •t,i ® 0 0 O O f . Y�Ii irJ`t" tjY,/'f'wfU { �J S � , :1 rh L' Y�1 ,a,�• �' �+ �ti, � ^� k'^'J : '� LI O 2 tt,, J•. + r 1, �! v ' a . fir, r C ' t . r + rf � i t{.{ 960 6.� ,�••N{''( .! }� A�} ��}� ,tI + ' + �` y3t• �Qt.J r 4 y rZ .S �p �1�, (J� o) (� ,rF'�Y:1 /111 L Yrll?J l �`' {J -(r �t i ' �fA •�11 glY�l� L , \A ri kA la ➢ Q �jf ..... .0 v, LL Zt Q . 1k• - ,i Y� 4. >(.1! ; s ,„-e-i. , , ) . •-i b '. `V�' iiimmm (� iiJtlrl..lr.. ?utt!Nr,1' v,�. J7 •. ._ x'rr_. ram_ . . _ ..:_�{f'Jr'lr,. 'T f '. . ..., ?q :v}� :. .t+t :. 5'1"t�. /:RC en ,Y ® CO kal. I� LL. : , t Ov .1 w )rh., ' r�- Iy f \'1".rr. / ,f .': , op •u t ./ :TA a. 1, Y r a I ` 1 )Ft x a�r "� W • •S7" 1 .Tf 5l , t • 1" Y�I r -b t u :,ti1 or ,,.� ^5,�1y. . '.-'4 <( ICI , ^•� r ' j �"' r r q) ;:1 J. !1 V! 'Y( N,44,1 / • yy I i i , ,f r 1_ ..Y.4 �•_ ' j 4•1 ' ,1. ,dam 4 r i tip <�. ?°ri .. .! ter ,- , n fi:� v ,4 t i _!1 a) VJ > ut 11 . C t Y� . l < f / f AIY'• rf[ x • 7 •�yrt v ...tir ,1 /11 .0,M` 1 1S�tR. ato , ✓a .`atl <Y.: VJ `er' I' �•{ r 1 . I. „i .. 1 r �I +rti ,! t; r'y.. �E . ;i,.v' y a41` w ,A. �rerA�}rt t t7 4 Vr 1a . v .kei 1k' ` f1".: 1 lt ! 1I)-ctf' :. ` 1 1.1y \ •,i1 , `h1 ,r•r ,* : y* 2, " + ..+. 1 h : ., ` 4 !I- -^ 1 .i ,y �, .0 :Itn`} • \n EY . ae elf,-� 11 ' 7 A^ y'�a '` .,C% fp ! •'C''9 v c ^+ iI `b VI ?e �� - �I�p,��ia �, y Ash. ,r ; . 5 7V'' ' -flit- ♦. r ' r v ' crJl fit ' t•�f,f i. -, Si:r .`�hr• r - xN`,ty14)i 1• 51 a ':LL., �p 1. ` 1 ' ,r4 +t �• \� r� .•_ y 4 ,�1 �� , .-- � 6Bd �h .. ► S �. w. 'F it r` \ 7 • 'SSA >cN "Rr � .V 4.11, �,3j /W� /(•— U '� Vi a p �'' 'r tA. 1^ p. v�'if '.LL v 1. c.��r .� ( y�rj\ "' ��'S { ,(, ` r "�6. . C 11,, s'�"��l/f j;YEI �.,,/ _c /\ VJ K cc • . 114 '� It la * ' Y44rk�e 1I;.i 1 , :' 9 �s `1 qit N L(��� '1 �{' .•�d� > o 5 ` 4tT^r'M�4la�c 1'Y �' err viY • A.--, ;` i1 <'"1 : •y`'� �r S SE{.. >l�',; 0 U s>.,1>1 Y I �� i ' /` -5' _ > INC � s h a ® /� `�D � � 9 q.. ,�Y ' L ,_ y` ..K C ` r °' �� IY Y,C C I. 2,d Srt.` I.^' ,�q,$ �� A r t a..* ¢R •i' e ~'r .1/4 3� tyl '3 kl \ W W -a) 5 Ns1/4. . '.: .. As i`. 3`i �. \ •' syrr` t' '�,�1a y:: ' : • t\ • I 'd—rr •0 U Cr) i S.•,Y ° ., •� it" , '.,• ,• ': F yi a • ''\; ` I. r '.aa 'R�t °`a �a, •1 t V 'O Q p 'F 1 lirh�i- -,r • .. l t ` 1 > -Iv . y.1 •_1 ,? } t 1 A Alete i 1 w ` J. �- CO Ina p}( VI 14 vrr `^v , t _ . ` ,, l:\`r \- ` i1mot } Ik fl•4�1. . .y 1� -,,At.r /1 �a) Q/��Q ��\J , ., ,t Y '{i� x� • M“ ,„C III��71J • • V s 1� .',,., ` r rt, �#,J lyV� 1./ if.� 1 S 1 �• A' / Y.',L t \ 'q+,e' ^t '( !� t "0 ' ' C l ( T rtlr• `,„Ir. ` -� N r <� ` v hYt 'Sy ` t T lY C t0 0 sI' tr,• , r.2'J11 �• 1(rI"t tie f }yr is-ey1.�7{$... A . g + ,fa lIK � '.. c\. ! t > •4>�d r ` • pF.�a ( hl sAi?, 4 t .,s,' 4 1, '�II 044;\ ��4 �� `' , rt ® s. P ^ _ (�) �$� F risn 1 1 t �� p1 • s_® �,tvAG: t'3�N • CO'4 y X • 'P 1 • P 1* l�jt 6'r ,• • n , iT.y-n, �l f 1; Ca CU -,, ,fit �'�+�yp 5 + e - , 41?,.�71.4D•Yr �'3■.`i - )1,-.,.. VJ CU 0 , ;� t4 ., 4e. ; : .A . )Iz' 1 , 9 •eA ..,p^n^'?l�c ' � Y� 12 Liu "'�"', �F�� CD d CU® a) � A > 1 11 s �j • Y{ .I 1 . \ i ,, iF J / y �1� .. C� }. �•,' ik `n 1.,Y �_ • • Oco • _ '�f1 r f' ,,x btu ,q `-.,,,,,,- Sy' co , i 5 S' 1. Y ` `+ �yA� f5t i-' , ` Z ♦ Cl ,, 9 .i y . `1 t ltl/ 4' t' / -t='thy `v CCS r.� VI/ `i a F ,.1 1M t r5`� t•( . • r ♦ r ) t 1 t• t :• (.a. d' T v +' .i}\]t`',^S L • ��'{� t. • i� 1 `.; rk(..11i; ' p,,r tY sil\' I- t':� 1 'N ,`t i t:�: 1 11 t,�ir w . a t 4 � t/t • e • y .�;„ � �_,,,,y• f '` y .Ltee/`I .6...1 r 'I I, t r t 1 mow . `. 0 0 6O ^ CO _;r rr d'' : 1 a • '11 ,,/b r : 1 7 ``.J rtS 0 .CD 0 /iil CD LL4 ' \V II /1 \ /j,t heo.4YIC ®i. Ca o via cc ! U � �L tts q . Vn ,1 Cl aL • . . a. �... L. r' / 4' r TAYLERSON RESIDENCE - I _ 1 ,,, 0jd design O, PV - �� - -,,, 3001 WEST 3rd PLACE JIM ) 982-0 _ - � -\ (360) 982-0535 ANACORTES, WASHINGTONI JIM@JDDESIGNDRAFTING.COM (E)WATER LINE , \ : -- - -- - I ' / �Q� 3 Z��a 1 PARCEL # 58429 \ w1 3 d GIT Y OF ANACORTES \EI w ..,‘DI PROJECT DESCRIPTION: NEW CONSTRUCTION ONE—STORY — \ I PROPERTY INFO. W/ DAYLIGHT BASEMENT SINGLE—FAMILY RESIDENCE \� (E)WATERMETER KCONSTRUCTION ENTRANCE: PROVIDE 12' W. 3RD PLACE ATIGHTLINE DRAINAGE I SITE ADDRESS: WIDE X 20' LONG (MIN.)CONSTRUCTION \ FROM SWALE TO S.D. I 3001 W 3RD PLACE NEAREST FIRE HYDRANT- #664 (122 ACCESS W/ CRUSHED ROCK BASE P TIGHTLINE I EXIST. CATCH BASIN ANACORTES, WA 98221 ZONING: R2 PSI)APPROX lee TO NORTHWEST PAVED DRIVEWAY LOCATION EXIST. CURB PARCEL P58429 (ACROSS WEST 3RD PLACE $ TO \ (E)STREET LIGHT 1/ ASSESSOR TAX AGGT.# 3809-501-003-0000 THE WEST) 5-3" 54'-e” 20"-9" ELECTRIC/GAS / / \ I I / QTR- ?, SEC: 23, TUN, 35, RNG 01 EXIST ROAD PARCEL SIZE: 8112 S.F. BUILDING CODES STUB INS Y PROPERTY OWNERS, --- y pr EXIST. SIDEWALK --- ROYAL CELTIC INVEST f HOLDING CO. w EXIST. SIDEWALK N (E)CURB CUT II -- --- 132 C/O ROBERT B KATHLEEN TAYLERSON Z CONSTRUCTION WILL COMPLY WITH: - \ ` ,.�� �� '' P.O. BOX 1413 w BUILDING B STRUCTURAL 20151RC / -w• •�- ' -" - 19. -._ � - ANACORTES, WA 98221 MECHANICAL 2015 IRC PROPERTY UN • 19.98' , --� Lici G - - 134 ��:. X X / .. PLUMBING 2015 UPC It.21• - _ _. _ (E D ���R _ ENERGY B VENTILATION 2015 WSEC - -\ ,- _ -- - - Iin �� 2 ..++0o 140' BMP-C233 ,�/Y/.r.A�,ESIGN TED GONORETE 4 •. " � ° - ° �� '� __ � � � S�• FT. INFO• LIJ w iUek SILT FENCE ' l _ I _._ 1_.__ - d � `I/ S w O//d SllASHO ARE T UNE ' d — 136' V' Ix A 0 EASEM N GENERAL NOTES = �.i �., " -4y a—t_� i — � v -- z T.� — _ • HOUSE WILL BE HEATED BY FURNACE LOCATED IN c� .OV CS n�� � - N .r LAWN OR PLANTED v. ". ,i. ./ ° '�° / _ SWALE LOWERL FLOOR CONDITIONED 1081 S.F. Z E 6+ PiEP are DRwfE1�Ac� NGE, N <0 d°�p� 411.1 ' IONED c .i. :I,-�__ ° �\\\✓ TOTAL CONDITIONED 2691 S.F. g 0 MECHANICAL ROOM IN BASEMENT. WS�.1- tiers.�. - w- -_�,�- ry 3007 �_,_\ \ I 3001 .,,SLOP APPSOX. '.< P 7\d �\ \� SLOPE DRIVEWAY I% N e °'�"` �, I. 15% ,I, v}_ 1- -A---- a 1 Q FOR WATER RUNOFF • WATER TO BE HEATED BY WATER HEATER - - - ° GARAGE 415 S.F. a LOCATED IN SAME MECHANICAL ROOM. "� 20 FRONT BSBL "' 4 / \ I LOWER FLOOR UNCONDITIONED 134 S.F. pp�� (� _ '..� dDRIVEUY BERM __-_ 4° i J C. PIG Flea W ITN DePIf-1 A r.. • —_ - - lire • CANTI N • , d "� --- - -- 138 COVERED FRONT PORCH 196 S.F. l ON D RAI NAG E NOTES l�w1�H ona- f �e �`A � �� \ I' �' � j)-- LINE FOUNDA ION I°. �, OPEN DECK 168 S.F. \ I \ a • RUN ROOF B SITE DRAINS IN 4' PVG TIGHTLINE B �� �J��1L 'M• �� �' �� �I, 1 - / ---- 'd • - NOTE SQUARE FOOTAGE IS MEASURED TO -- / i THE OUTSIDE FACE OF WALLS OF ALL FINISHED TIE TO STORM SEWER, TIE FOOTING DRAINS TO N ; \ / - - t----��7- TIGHTLINE DOWN GRADE B 5"-0" MIN. FROM ` 'I I // //" 1 //I 141I d , SPACE. STAIRWELLS ARE COUNTED ONCE, W \� eXYD 11n1(> . 17 11-'"iecrit J 6h.1 _ I I , I \ / / / --I-- ° °a° - Q APPROX. HALF ON TOP FLOOR, HALF ON BUILDING. ! A NOTE DRAIN GRADE I h I / / / I/ � ,I • ° � 140' BOTTOM. OPEN TO BELOW SPACES ARE NOT W cc GRAVEL TO BE USED �/ / / / • KEEP DRIVEWAYS/PAVED AREAS SLOPING AWAY X ` , V / /q' e INCLUDED IN CALCULATIONS. GARAGE AREA w UNDER DECK I I __.�_ ` -..T lj. 1 / / I /� °. I PRofb5ra Co1..iy eci-k*,.1 k&P45 { J / / , 9 FROM HOUSE. pr �o�q, ,� .. I� \ � SOU _ //�— I lair . ° A IS CALCULATED SEPARATELY - J u n SSV13.6UT GoNi-mc- m-Q.( tl9 T6. )OG) ' '-1, / \ \ / �/ - _ --�-... �` a °', a `c L SILT FENCE C 0 LLJ LANDSCAPE NOTES D+ I v(, T , - , -rk,�. m 3 `\ `\ S� 3• I ' oCE • APPROXIMATELY 1900 S F. OF THE 8112 S.F. LOT WILL �c�� �- - I \ `\ `\ ��\ 4a — N BE LANDSCAPED WITH EITHER GRASS OR PLANTED ( X ` ° ° `� _ 142' LOT COVERAGE . o oV1C 15a 24 Go��Ctt�-Trc 5wn 1a 1¢cz( W \ \ \ / I o <' AREAS (THIS IS OVER THE MIN. REQUIREMENT OF 20% / Z ��, \ \ / PROPOSED \ °° 0 OF THE LOT). A MINIMUM OF (9)TREES WILL BE 'J T'5a.L�W �''Sµ�1 RIr 17�N J 1TL A I - \ _ \ •/ \ \ A F �" ° l /� LOT SIZE 8'112 S.F. z s PLANTED ON THE LOT, WITH NO MORE THAN 30% (e I --`� RESIDENCE \ I o o = BEING OF THE SAME SPECIES. EVERGREEN TREES �$�`A t>•'h w'1oG11.1Vk-lL "1'� OF TES�tl_ w -- \ ° 3 HOUSE FOOTPRINT 2101 S.F. U W NO mill ui -ro SHALL BE MIN. 8' TALL, WHILE DECIDUOUS TREES --- - • SHALL HAVE MIN. I I/2"" GALPER AT CHEST HEIGHT. d j ..... `\ `\ I J8 I ° ' " IL ° ° 0 COV"D FRONT PORCH/DECK 196 S.F. Z w w w) 1\ - \ • d • M --- 144� OPEN DECK 158 S.F. w 159' Q I `\ -SCaVFRED-FRONT PORCH__ - -I-- __-____- < /▪ e I U Q O J - TOTAL 246,1 S.F. w w /�.1"-jo, BM? Gllo2 `. 4-krb.11n , -lfio 's X fY \ -- -- -.\ I ° ° aT°-- " • PERCENTAGE 28.3 % o w a Li < ENERGY CREDITS w1 - W �' �1 o'Zt�'� 1 f-s 'll`!i. I�I_iA6C aTj =}.1`. _ ,-\_ -- — �n a VIIITHIS RESIDENCE IS A MEDIUM DWELLING UNIT U500 - 5000 SF.) — ---- _._ �� , ° WHICH WILL REQUIRE 3.5 CREDITS -_-_-_ IX _ i ®� , _ - d° �' W T IMPERVIOUS OPTION DESCRIPTION CREDITS ----- t -y I _ / -_-_-_ L v _ �� y °��� d I IA EFFICIENT BUILDING ENVELOPE 05 - N, _ - ° ° a ° , _ �I \ I ,,° d A. RF — — W 2A AIR LEAKAGE CONTROL AND EFFICIENT VENTILATION 0.5 \- _-- ��- \ ° �- , -' P C111 a ° ° ° 44 ° d . __ _ SURFACE 7 3A HIGH EFFICIENCY HVAC EQUIPMENT 1.0 X � \ `` tea_ _ ° 4 °d • ° ° , • - ` / W TOTAL UNDER ROOF UNGL EAVES) 2161 S.F. f� 1 I ° I ° d__ CONST TION ROAD/ t ° J 5C EFFICIENT WATER HEATING 1.5 I ` \�\ °• °- ' ° - ° tlia PAVED DRIVEWAY/PARKING 2010 S.F. d m \ I - PARKING!\ -, A w II 1485 TOTAL CREDITS 3.5 W A SILT FENCE I m - /\/\ °I a. ° a ° ° e\ d d A d° / I N TOTAL 4831 S.F. FOR FULL DESCRIPTION OF EACH ITEM SEE WSEC 2015 SECTION R406 X - - ATTACrIED �A.RA 1' °. ,. d ° ° • ° I U PERCENTAGE 55.5 % EL 'ADDITIONAL ENERGY REQUIREMENTS' AND TABLE 406.2 'ENERGY N - / \ ° AYED ° d' ° ° , - ill d CREDITS' in // \'\ ° d a \° ° P - KING < ° a- - Fa = 1 • i11 / X vv ; a 20'°RE°j2BS-L FIRE AREA Q — — I — XI I -- �. ^� ° A0 REA 14158E 5° 0' _- m° °T AROUND LOWER FLOMAIN ORF FIRE A F. / / ° N a ° / ___ BMP GI23CI - ---� TOTAL FIRE AREA 3150 S.F. TEMPORARY SOIL STOCKPILE \ X ��'. LOCATION COVER WI STRAW ORS VISQUEEN $ SILT FENCE AROUND DOWN SLOPE SIDES) A, �., ran - —\ ` w 5 \ RETAINING WALL --I- ----- --._-'_-._. -- 154 / PROPERTY LI' AS NEEDED i DRAWING INDEX SITE PLAN LEGEND % F�-- - - - - — 1998 — - - X N 69°4305" E � Od EVERGREEN TREE 114 �- �� I �� \ Al SITE LANDSCAPE PLAN �, \ -- 156 A2 FOUNDATION 1 LOWER FLOOR o E. W Q� DECIDUOUS TREE ! -� FRAMING PLANLa Go SHRUB/BUSH 110' / CL / 5-3" ! \ 64-0" 'I 'I \ 20,-9„ Q 0 ��� � T A3 FOUNDATION DETAILS ORNAMENTAL GRASSES \ \ \ A4 MAIN FLOOR PLAN 58 DRAWN 8Y JAD W. 4TH STREET ROW A5 LOWER FLOOR PLAN SCALE AS NOTED *ILAWN Aro MAIN FLOOR FRAMING PLAN 3D JOB# 96NC18-TAYL p j PAVED SURFACE \ \ ` IAlA ROOF FRAMING PLAN 1 DETAILS DATE 07/20/2018 �— 160 AS BUILDING SECTIONS REVISIONS F ' GRAVEL/ROCK SURFACE - •_ 114 112' lie' 168 166 --- 164' -- 162 A9 BUILDING SECTIONS it DETAILS 11/09/2018 REVISIONS CRUSHED AGGREGATE GREATER ATO LESSEN IMPERVIOUS — - - — PROPERTY LINE THAN 3' BUT SMALLER THAN 6" Ale ELEVATIONS EAST it NORTH SURFACE, ADDITIONS — — — BUILDING SETBACK TO SILT FENCE, LINE OF BLDG. FOOTPRINT All ELEVATIONS WEST 1 SOUTH ,� < y = SITE & LANDSCAPE PLAN DRIVEWAY GRADING ------ UNE OF ROOF ,\ UNE \Y\; ;CAS'v*'v\ :vD,2.! SI STRUCTURAL DRAWINGS DETAILS A/ORry SCALE: 1" = 10'-0° 52 STRUCTURAL DRAWINGS ir DETAILS- UTILITY UNE X SILT FENCE CONSTR. ACCESS SECTION 53 GENERAL STRUCTURAL REQ'S. Al NO SCALE SHEET 1 OF II ANACORTES PUBLIC WORKS DEPARTMENT GtY 0 Steven Lange, Project Manager P.O.BOX 547,ANACORTES,WA 98221 PH(360)293-1920 41 E-MAIL:stevel@cityofanacortes.org FAX(360)293-1938 RC00 Memo Date: November 27,2018 To: Kait Nelson, Planner From: Steven Lange Subject: PW's Review for 3001 West 3'Street cc: Don Measamer, Libby Grage, Eric Shjarback The Public Works Engineering Department completed a review of the submitted documents related to the 3001 West 3rd Street on Monday, November 26, 2018. Below are the findings and recommendations: • October 29, 2018: PW Review of Site and MR#1 through #9 complete. Memo drafted and routed back to Planning. • November 12, 2018: PW completed the Applicability Flow Charts and determined the project is required to complete a MR#1 through MR#5, not a MR#1 through MR#9. Informed the Planning Department. • November 13, 2018: Applicant submitted a revised narrative to MR#2. • November 19, 2018: PW Review of the 11-13-18 documents completed. An email was sent to the applicant of being incomplete. • November 26, 2018: PW completed a MR#1 through MR#5 using the submitted information to date to determine what additional information is needed. This document was routed to the Applicant and Planning Department on 11-26-18. • November 27, 2018: PW RS#3 drafted and routed back to the Planning Department for additional information. Frontage Improvements: • Per Review Summary 1, dated October 29, 2018: The Driveway Approach will need to be reconstructed to meet the current City of Anacortes Standards for ADA compliance. See attached WSDOT Standard Details and City of Anacortes Development Standards, Chapter 3— Streets, Section STR-28— Property Access. Revise the drawing to show this requirement. Eo � 1 j • Water • Wastewater • Streets • Storm Drainage • Engineering • Solid Waste • Transportation•Equipment • Capital Projects • Development Services Site Plan Review: • Proposed swale along the east side of the driveway needs to be designed to reflect BMP T7.30 Bioretention Swale with underdrain Check dams will be required based on the slope. The placement of the check dam placement will need to meet DOE requirements. Provide further detail on the proposed connection of the swale to the existing private storm drainage system. Designer should take a look at the relationship between the two swales being in close proximity. The site plan does not identify elevations or a proposed BMP T7.30 design to show how it will affect the existing conveyance swale. Will the existing conveyance swale flow into the proposed BMP T7.30? • Utilize the existing stub connection at the northwest corner of the property. This will allow for the ease of installation of BMP T5.10C Perforated Stub-out Connections, based on grades shown. • Provide a strip drain at the lower end of the driveway to prevent sheet flow from the driveway crossing the sidewalk. This strip drain can be connected to the existing private storm drainage pipe. • The site plan should include the proposed BMP's shown in Minimum Requirement#5 (BMP T5.10C Perforated Stub-out Connections, BMP T7.30 Biorention Swale with Underdrain, BMP T5.12 Sheet Flow Dispersion and possibly BMP T5.11 Concentrated Flow Dispersion) • Identify the removal and replacement of the driveway entrance and specific requirements. Storm Drainage Review: • The Public Works Department completed a new Minimum Requirements document for 1 through 5. This project was a Beta tester for the document. The applicant will need to review the attached document and provide additional information to complete the storm review and revise the document accordingly. More importantly: • Revise the site plan to reflect the BMP's proposed. • MR#1 1-3.1.5 Step 5: Applicant will need to determine if the proposed BMP T7.30 Bioretention Swale with Underdrain will actually work with this site. • MR#2: Project will need to adjust the SWPPP based on changing site conditions. • MR#3: Based on a conversation with the Applicant, the project will utilize BMP C162 Scheduling. The Applicant will need to review the information provided to determine accuracy and revise accordingly. • MR#5: Project will utilize BMP T5.13 Post-Construction Soil Quantity and Depth. • MR#5: Project will utilize BMP T5.10C Perforated Stub-out Connections.ra1K • Water • Wastewater • Streets • Storm Drainage • Engineering • Solid Waste A ® • Transportation• Equipment • Capital Projects • Development Services q /P: • MR#5: Applicant will need to determine if the proposed BMP T7.30 Bioretention Swale with Underdrain will actually work with this site. • MR#5: Project will utilize BMP T5.12 Sheet Flow Dispersion for the upper portion of the driveway. • MR#5: Project will need to review the potential use of BMP T5-11 Concentrated Flow Dispersion. W� o 4F � K • Water • Wastewater • Streets • Storm Drainage • Engineering • Solid Waste • Transportation•Equipment • Capital Projects • Development Services 4�/p. ANACORTES PUBLIC WORKS DEPARTMENT s�Y ° Steven Lange, Project Manager P.O.BOX 547,ANACORTES,WA 98221 PH(360)293-1920 E-MAIL:stevel@cityofanacortes.org FAX(360)293-1938 Memo Date: November 27,2018 To: Kait Nelson, Plann From:Steven Lange Subject: PW's Review for 3001 West 3'd Street cc: Don Measamer, Libby Grage, Eric Shjarback The Public Works Engineering Department completed a review of the submitted documents related to the 3001 West 3rd Street on Tuesday, November 27, 2018. Below are the findings and recommendations: • October 29, 2018: PW Review of Site and MR#1 through #9 complete. Memo drafted and routed back to Planning. • November 12, 2018: PW completed the Applicability Flow Charts and determined the project is required to complete a MR#1 through MR#5, not a MR#1 through MR#9. Informed the Planning Department. • November 13, 2018: Applicant submitted a revised narrative to MR#2. • November 19, 2018: PW Review of the 11-13-18 documents completed. An email was sent to the applicant of being incomplete. • November 26, 2018: PW completed a MR#1 through MR#5 using the submitted information to date to determine what additional information is needed. This document was routed to the Applicant and Planning Department on 11-26-18. • November 27, 2018: PW RS#3 drafted and routed back to the Planning Department for additional information. • November 27, 2018: Taylerson stopped by the office to address the RS3 comments. Between the two of us, we noted the Sheet Al and modified the MR#1 through #5 accordingly. All review comments have been addressed. No further issues. ,REV 4 a�lK • Water • Wastewater • Streets • Storm Drainage • Engineering • Solid Waste ® 4, • Transportation•Equipment • Capital Projects • Development Services 4. Vp ANACORTES PUBLIC WORKS DEPARTMENT G-If =°qtr Steven Lange, Project Manager t P.O.BOX 547,ANACORTES,WA 98221 PH(360)293-1920 10I4i h,, 47 E-MAIL:stevel@cityofanacortes.org FAX(360)293-1938 W/--- Memo t.t.27-(a>. c" 12-5 51tpee„ e`t S) Date: November 27,2018 pCce — 6o av -- �` s`1•"""""ek4 g^v'5r13 To f t✓-a• PatC. To: Kait Nelson, Planner From: Steven Lange au. raarns 64-- 'TN-►5 g-v► + 5"-Av'" 1 Rpm dr)Otti c. Subject: PW's Review for 3001 West 3'd Street cc: Don Measamer, Libby Grage, Eric Shjarback ,z The Public Works Engineering Department completed a review of the submitted documents related to the 3001 West 3rd Street on Monday, November 26, 2018. Below are the findings and recommendations: • October 29, 2018: PW Review of Site and MR#1 through #9 complete. Memo drafted and routed back to Planning. • November 12, 2018: PW completed the Applicability Flow Charts and determined the project is required to complete a MR#1 through MR#5, not a MR#1 through MR#9. Informed the Planning Department. • November 13, 2018: Applicant submitted a revised narrative to MR#2. • November 19, 2018: PW Review of the 11-13-18 documents completed. An email was sent to the applicant of being incomplete. • November 26, 2018: PW completed a MR#1 through MR#5 using the submitted information to date to determine what additional information is needed. This document was routed to the Applicant and Planning Department on 11-26-18. • November 27, 2018: PW RS#3 drafted and routed back to the Planning Department for additional information. ,� I� Frontage Improvements: 1k•2 Now o''-' • Per Review Summary 1, dated October 29, 2018: The Driveway Approach will need to be reconstructed to meet the current City of Anacortes Standards for Ic? C ADA compliance. See attached WSDOT Standard Details and City of Anacortes �S�' Development Standards, Chapter 3- Streets, Section STR-28- Property �a` Access. Revise the drawing to show this requirement. ait �' • Water • Wastewater • Streets • Storm Drainage • Engineering • Solid Waste • Transportation•Equipment • Capital Projects • Development Services qWP Site Plan Review: • Proposed swale along the east side of the driveway needs to be designed to reflect BMP T7.30 Bioretention Swale with underdrain Check dams will be required based on the slope. The placement of the check � � dam placement will need to meet DOE requirements. �,c4a".-c�� Provide further detail on the proposed connection of the swale to the existing &M Ar.• private storm drainage system. Designer should take a look at the relationship between the two swales being in close proximity. The site plan does not identify elevations or a proposed BMP T7.30 design to show how it will affect the existing conveyance swale. Will the existing conveyance swale flow into the proposed BMP T7.30? w.- Utilize the existing stub connection at the northwest corner of the property. This ry will allow for the ease of installation of BMP T5.10C Perforated Stub-out gPyp Connections, based on grades shown. L`',payer-( • Provide a strip drain at the lower end of the driveway to prevent sheet flow from Lam• the driveway crossing the sidewalk. This strip drain can be connected to the existing private storm drainage pipe. le,"-se S .)P\E -To 8E �sa�• sty. • The site plan should include the proposed BMP's shown in Minimum Requirement#5 (BMP T5.10C Perforated Stub-out Connections, T,�, Q..,. pR�.`'.q •- 711� ' '��'^ 5.12 Sheet-Flow Dicpercion-an} 'GIVI GIILIVII V'YY QI\. VYILI I-l7fICfG7'L7 p • ii•-11 I2.EV' D erd2T 'ro Qua SzL. pdteD_ • Identify the removal and replacement of the driveway entrance and specific F 5•5704N, requirements. Storm Drainage Review: • The Public Works Department completed a new Minimum Requirements document for 1 through 5. This project was a Beta tester for the document. The applicant will need to review the attached document and provide additional information to complete the storm review and revise the document accordingly. More importantly: - ' • Revise the site plan to reflect the BMP's proposed. v.^0 • MR#1 1-3.1.5 Step 5: Applicant will need to determine if the proposed BMP T7.30 Bioretention Swale with Underdrain will actually work with this site. w.E\2 • MR#2: Project will need to adjust the SWPPP based on changing site conditions. ,- • MR#3: Based on a conversation with the Applicant, the project will utilize Di:, ,,���- BMP C162 Scheduling. The Applicant will need to review the information 0 provided to determine accuracy and revise accordingly. • MR#5: Project will utilize BMP T5.13 Post-Construction Soil Quantity and '' + Depth. },bte> • MR#5: Project will utilize BMP T5.10C Perforated Stub-out Connections. at 17:4 • Water • Wastewater • Streets • Storm Drainage • Engineering • Solid Waste • Transportation•Equipment • Capital Projects • Development Services qcc,,daa'") • MR#5: Applicant will need to determine if the proposed BMP T7.30 Bioretention Swale with Underdrain will actually work with this site. w f ja • MR#5: Project will utilize BMP T5.12 Sheet Flow Dispersion for the upper portion of the driveway. N`p • • MR#5: Project will need to review the potential use of BMP T5-11 Concentrated Flow Dispersion. (19 4c`�2. .1i • Water • Wastewater • Streets • Storm Drainage • Engineering • Solid Waste ® �; � • Transportation•Equipment • Capital Projects • Development Services vo •1 t "= - iti 2232 fr, ah ..,,, s,\ 'ra /(------5--;\----; 1' N V ••• i I 41411- 3 . • -7-------- _______ /" `- � ' • I • of I V . 2 . ; "e4( _____ ,...---- \ 0,..--.....c,, Ili* lb ., ---„, KI �C� ' • �- - . % E O > r0•9' _-/ - r124- \ N l.'o. Ai ( C41 0 g ikg \ ICY) • +Wt." a \ 70t, 301 ___. 3Q01 \ 421.: 0 c, �.. _.......... • v �''\ row � c1� � P584 -p in ,-\\ \ 3007\ \ c) Al 3 \ . r ....— N \ 5 __________\ NV . 5 . 05 .--S r >_ �ts At 5 ', iN \ �v sit> . --e 0) A ( tS A N ./ \ n >tttt I „t3o ' C BMP CI85, CONSTRUCTION ENTRANCE, 5 - �" - I 3001 W 3RD PL. PROVIDE 12' WIDE X 20' LONG (MIN.) S pVG 5. I ANACORTES, WASHINGTON 01 CONSTRUCTION ACCESS W/ CRUSHED (E)WATER METER `""' rhn ROCK BASE @ PAVED DRIVEWAY (E)WATE LINE VI o LOCATION - - - \ - - - - „, `�TIGF ITLINE DRAINAGE FROM I Igrill ' a ELECtRIG/GAS v 51UALE TO S.D. TIGHTLINE ILI ua,.' StUB-INS Q '`'t .. ,, ' t o \141 _ 9 EXIST. CATC rASIN NOV In 4 T w I EXIST. C �B k� �� _1i. f W NEAREST FIRE HYDRANT, #664 (122 . 3RD PLACE I I / � OF . � ��®�$�I�S L z PSI)APPROX. 100' TO NORTHWEST 5'-3„ .0 5.4'--" 20 5" E (ACROSS WEST 3RD PLACE 't TO / O i, I , UJ UJ Z THE WEST) -__ 1 rY! — --_____ _� �,�`"j��j E =T. SII9 WALK I (E)CURB CUT IIIIIIMIInk Y,- �'C'" N \ ID _)_t--- p__, o ��_ 1 o'-EASEf 11N E - -�_ - :..` \r��►._�. w 13 I o "7>��k o N --- —-- ---- -- • �'�IpO t- ---__�-� ,_ \ .mom SLOPE DRI V WAY 1% 3;4 H -- ` I` III __ -- / I. 'a 1 I ��T ------ -�I �: I �-- PAYED DRIVEWAY C �MS o err Ci54 DESIGNATED \� \ i / // / �. ,0 ��Jl4e ' 25 !� p z ce o CONCRETE WASHOUT I - -- // / /", 4 ' ! v141Z lt-1+ , z w — AREA I I I i II iT \ /2' ---� / O►s• , '. . T-----__ BERM z - N o N o mI W `\ \ PR OSE I- °}i' __�— 0 UT��t2� -D �N 't�- � a o � o a, � '� 4> F3201111'�� S'l�Zt P T�t2w�ru..s To N � \ \ \ � ��� •. �? QYma '4) a � zI0I \\ RE,SDEN c .m.• `/ Q �2a��S 4 �tc�aT� A� S�8 «s o n 2 o ft�v SF4�="'rRA-%-,' s X4 \ ,.�4 41101, i it U11.1 t P v4T S� Q 1- o_ w w cn w 5u:e 410.4.4E 1 YLi�1 {, m w \ .. --�_ \ .„_ . 0 LLJ m I- o 1- J o 158--------2 - x0 r \\ _ - ®'• 1 W Cbll4..\0._ i. C v lye. T��' iL-) WSW O QOw - �__� 2~� �I �C` .. . ., -� O o a W a fx w ---- a h� -- -- � a SILT FENCE z 0 Q Q C~n a 0_ x �i-ICI.;✓ �Px�.Yt ate_ y~ --- —� �f � �'; �\ W -_ a��sra -n q -r -- -- ---�"i ` r �-- Uf a I -, \ -- W-� 0 �� S , E alc , i: : :-::-: -.. : .--!:. cal . . `r'i i`cj-- SILT FENCE - A P Q NED`\ ;P 4v - > 41`lVc j a 1 lU ` x __________GA� _ ° . '.PP;4RN Nis.,` ' J n 5 ik `�'D -� 51--• pera..s 4e-2b7 ,` -.\\y. _ . - s 1 Q%CA9 9 • K 5, Pew\IL. v!4 - ) I 1.1:� � 1,8 ``\�Y _ Ix `�\ \„: is RE'4R -B�. I _ T 5pc;iy,„. 150' V 11�F - 1b S�1 (Sc �t} SC `� -4 • ' :- N xl -pjl�e ,DerAtC.o+JZ �� _- _ _\ _`� emu- 9C.oN'N f 5AwkL- - 'XSUot l. 5 ►� -'` �`17n�� � + I BMP G11T GONSTRUGTI N / .,,_-- -�,.( x SITE PLAN LEGEND ,, )\ �\ ROAD/PARKING AREA Z BMP CI23: TEMPORARY SOIL / _�-� �� _ _/ - : 4 PAVED SURFACE o STOCKPILE LOCATION, COVER W- ( / / -- PL: -m SS' N >:o '43'05 I a STRAW OR VISOUEEN it SILT FENCE i 4�, \ �_ LT ILI AROUND DOWN SLOPE SIDE(S) _ f / '� L-- -- ,.w ,", :`i; GRAVEL SURFACE 1"10' /, (/ RETAINING WALL Il i l.2'1. 4� W. 4 TH STREET ROW --___ A5 NEEDED _ _ PROPERTY LINE Q "[ 1, SO(�J A1lh �c11t � 5 — — Li) '-3" 54'. \\ 28'-9„ �� --- --- BUILDING SETBACK \= /a. \ LINE OF BLDG. FTPRT. CO -5ea1--' eSSI • tie' t 68 ---- -- LINE OF ROOF DRAWN BY JAD 9-L SITE PLAN SCALE I° = 20' - UTILITY LINE DATE 08/21/2018 REVISED 11/09/18 NORTH SCALE: I" = 20'-0" X SILT FENCE M M � x PI EX, CB #1736 TYPE1 E6 RIM ELEV,=127,75' R' n 0- m / , 1 3RD PLACE v EX, SIDEV!AL< A, .6 ■ SIDE_ _\ ----------- --20' SETBAC - 140,6' 00i 3OQJ S3 MAX. PEAK ELEV. 152,8' + 35' =187,8' Q lo L x cp Pq v) t 165,2' v) V � 164,0' � s" 20' ET TACK AVERAGE ORIGINAL GRAPHIC SCALE GRADE ELEV. 10 0 10 201W1 40 140,6'+141.5'+164.0'+165.2'= ( IN FEET ) 611.374=152,8' i inch = 20 ft. HERRIGSTAD ENGINEERING & SURVEYING Average Original Grades for 4320 WHISTLE LAKE ROAD Proposed House 3001 W 3rd Street, Anacortes ANACORTES, WA 98221 299-8804 Completed May 14, 2018 I' PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT c., ` � CLEARING/ GRADING PERMIT APPLICATION & CHECKLIST: i t Mailing Address: P.O. Box 547, Anacortes, WA 98221 ! 6 V: . , � -, Office Location: 904 61h Street, Anacortes WA 98821 '` 1B Phone: (360) 299-1984, Fax: (360) 293-1938 Pit p 5 20 1 PLEASE REFER TO THE CLEARING& GRADING PERMIT CHECKLIST BELOW FOR SUBMITTAL REQUI, 'i ' p°�pCaR } SECTION 1 CLEARING /GRADING PERMIT APPLICATION: I' PROJECT ADDRESS(Street,Suite#): Parcel(s)#: p„S'g/mac c'0/ W�.Sr- _3� e ids, Total Site Area (property size): 0Ae- e l APPLICANT NAME: Phone#: -3hee:1/go e'v,✓s ccaroiL/ 6�.1.--t. 3 0•- 3 ?/—60/0 Address(Street, City,State,Zip): „ E-Mail Address: /cif 6-147P<?!t/ / ,:to4' e_,-e i J h.e ikepqrt4.ci I . Cac4,. P PERT OWN NAM Phone#: /ate Sravv�/ n w+ A` A'4•fiei7..t 6o "/ Ad8ress Street, City, Sta(e,Zip): Email Address: CONTACT PERSON NAM, : Phone #: G''. I 9 ,e¢,"d /L 36.0 -- 3'9f- Gd/o Address(Street, City State,Zip): Email Address: H3o3 ofri4e.,iv he;f//4v �v��ii y. h e1.74om e.ei' ..:.-cam CONTR�ACTOR * / Phone#: � / �✓ 0 ems/+---- 4-4cG4v7v L L .j‘G' ' 37f-60/0 Address(Street, City,Ave/ State,Zip): Email Address: / �/ / / C' r s YG' it(j 6.Ae/C) '' '7 �--i- -,1/5' `'J ev-5. + /C 24v.:11 / , ',rt , *All Contractors&Subcontractors must have a valid Professional License'#: Exp. Date: 1 City of Anacortes business license prior to doing work in the City. Contact the City's Finance Department at(360) Professional License#: Exp. Date: 299-1968. Are there critical areas(wetlands,streams,steep slopes, etc.) in the project vicinity? Yes Et No ❑ Total area of land-disturbing activity: id00 SO' Will project involve tree removal? Yes El No Grading quantities: Cut .3O0 CY; Fill /oO CY;TOTAL ,/oo CY Description of location and route to disposal site for excavated material (if to be wasted off-site): Signature: I declare under penalty of perjury that the information I have provided on this form/application is true, correct, and complete, and that I am the property owner or duly authorized agent of the property owner to submit a permit application to the City of Anacortes. Print Name: Cv i d 9A 74 Owner ❑ Agent JR, Other El Signature: KX1 Date: 3 -z/-moo/ S! ((e0 `1 i � r/, •�0 5 �(/� �, Page lof8 1 -1-al 4'e i94ild/e. a'h LI'4a7 ( 4 pi7F;r`, lI v'+ fit ► `av /-Je h4-4 '` � PLANNING, COMMUNITY,& ECONOMIC DEVELOPMENT DEPARTMENT CLEARING/ GRADING PERMIT APPLICATION & CHECKLIST: Mailing Address: P.O. Box 547, Anacortes, WA 98221 \:P Office Location: 904 6th Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 SECTION 2 CLEARING /GRADING PERMIT APPLICATION CHECKLIST: 37 -o n 0 -o-cs CLEARING/GRADING APPLICATION SUBMITTAL REQUIREMENTS: n 61 The number indicates the number of copies for submittal (if applicable). a O )' am Application Fees (see Land Use Permit Fee Schedule) Clearing/Grading Permit Application (See Section 1 Above) 3 Impervious/Hard Surface Worksheet(see Section 3 below) 3 Determination of applicable minimum requirements per the adopted Stormwater 3 Management Manual for Western Washington (see Section 4) Construction Stormwater Pollution Prevention Plan(Construction SWPPP) and 3 construction sediment transport potential worksheet.(see Section 5) Site Plan (see Section 6),which may include elements of the SWPPP 3 Cross Section Plan (show dimensions of original and proposed grading;see 3 sample drawing) Arborist Report-inquire with PCED to determine if required 3 State Environmental Policy Act(SEPA)Checklist(Required only if>500 cubic yards OR if 3 any work on land covered by water) Critical Area Report(wetlands, FWHCAs,streams,geologically hazardous areas, 3 frequently flooded areas,etc.)—inquire with PCED to determine if required Copy of Forest Practices permit(FPA) issued by DNR, if applicable 1 Page 2 of 8 PLANNING, COMMUNITY, &ECONOMIC DEVELOPMENT DEPARTMENT v`s Y o� CLEARING/GRADING PERMIT APPLICATION & CHECKLIST: lPh Mailing Address: P.O. Box 547,Anacortes, WA 98221 `AlOc ti9cov,`` Office Location: 904 bah Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 SECTION 3 IMPERVIOUS SURFACE 11VORKSHEET: TYPE OF SUBTOTAL OF PROPOSED PROPOSED IMPERVIOUS OR EXISTING SQ': NEW+ REPLACED REPLACED SQ': NEW SQ': HARD SURFACE: (SQ. FT.): House+attached garage roof area: (_% "- I F Detached structure(s) roof '` -- - rili area: AIM 'el- Parking area(s): , 1111, Patio(s): .-- - r L Driveway(s): . _ Sidewalk(s): ;_ — -- _ ___ Permeable pavement or i ��f� vegetated roof ) �- `C� (hard surface): Other: � ' ° X-41-4i t:L 7 / f /✓�'vv&-4-S I TOTAL: Page 3 of 8 PLANNING, COMMUNITY, &ECONOMIC DEVELOPMENT DEPARTMENT Y ° AM( CLEARING/GRADING PERMIT APPLICATION & CHECKLIST: l�trl w Mailing Address: P.O. Box 547, Anacortes, WA 98221 ��coax Office Location: 904 6th Street,Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 SECTION 4 CLEARING/GRADING PERMIT APPLICATION SITE PLAN CHECKLIST: 1. All site plans must be clearly and accurately drawn on 8%x 11 (letter) or 11 x 17 (tabloid) paper. If you need more space you may logically divide your site and draw each portion on a different page,or use layers.etc....)scale. 2. Draw plans to a standard engineering scale (i.e., 1"=10', 1"=20', etc.). List the graphic scale used. 3. Title block: Include landowner name(s), parcel number, &site address. 4. Provide a north arrow. 5. Property boundaries (from a recorded survey), lot dimensions, property corner locations, &adjoining street name(s). 6. All public and private easements (e.g. utility, drainage, access,etc.). 7. Location, dimensions,and distances to property line of all existing and proposed structures, drain- fields, septic tanks, and wells.Additionally show zoning setback lines. 8. Location of driveways (existing and proposed). 9. List lot size square footage & acreage; provide impervious surface calculations (existing and proposed). 10. Location and type of utilities(existing&proposed), connection to the sanitary-sewer, storm-water, and potable water service. 11. Location,type and size of existing significant trees (deciduous and evergreen trees greater than 6 inches in diameter at five feet above grade) and native vegetation; show location of clearing limits. 12. Provide corner elevations of the site&lot topography of existing& proposed grading (drawn at either 2 or 5 foot contours). Use contour lines or arrows to show direction and percent(%)slope(s). Identify any erosion or landslide areas as well as any potential unstable slopes greater than 15%. (Percentage%slope= Rise (drop in height) divided by Run (distance) multiplied by 100. Show contours extending onto adjacent properties and proposed transitions. 13. Location of critical areas and buffers (i.e., streams/creeks,wetlands, and geologically hazardous areas/steep slopes)that are either on the subject property or within 300 feet of it—include a critical area report if applicable. 14. Location of adjacent marine or freshwater shoreline, bulkhead,ordinary high water mark(OHWM) and setback.A shoreline exemption may be required—inquire with PCED. 15. Stormwater management:Show appropriate elements of the Construction SWPPP, including: a. Areas of vegetation to be preserved; clearing limits b. Drainage ditches and swales (existing/proposed) c. Construction access d. Temporary and permanent stormwater retention or detention facilities; sediment and erosion controls; slope protection,etc. e. Infiltration systems (existing/proposed) See the Stormwater Management Requirements handout for other requirements. Page 4 of 8 PLANNING, COMMUNITY, &ECONOMIC DEVELOPMENT DEPARTMENT .6 CLEARING/GRADING PERMIT APPLICATION & CHECKLIST: j�. y Mailing Address: P.O. Box 547, Anacortes, WA 98221 ti� w Office Location: 904 6rh Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 SECTION 5 DETERMINATION OF STORMWATER MANAGEMENT MINIMUM REQUIREMENTS: Start Here 1 Does the site have 35% Yes See Redevelopment Minimum or more of existing ► Requirements and Flow Chart impervious coverage? (Figure 1-2.4.2). No Does the project convert%4 acres or more of vegetation to Does the project result in lawn or landscaped areas,or 5,000 square feet,or No convert 2.5 acres or more of greater,of new plus to native vegetation to pasture? replaced hard surface area? \No Yes Yes Does the project result in 2,000 square feet,or greater,of new plus All Minimum Requirements replaced hard surface area? apply to the new and replaced hard surfaces and converted vegetation areas. Yes No Does the project have land Minimum Requirements#1 disturbing activities of 7,000 through#5 apply to the new ' Yes square feet or greater? and replaced hard surfaces and the land disturbed. No V Minimum Requirement#2 applies. Figure 1-2.4.1 Flow Chart for Determining Requirements for New Development DEPARTMENT OF Revised June 2015 ECOLOGY Please see http:/M+ww.ecy.wa.gov/copyright html for copyright notice including permissions, State of Washington limitation of liability,and disclaimer Page 5 of 8 PLANNING, COM1VIj.TNITY, & ECONOMIC DEVELOPMENT DEPARTMENT • 3( 0 �' °^ CLEARING / GRADING PERMIT APPLICATION & CHECKLIST: Mailing Address: P.O. Box 547, Anacortes, WA 98221 \,7+111101 - Office Location: 904 6th Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 • SECTION 5, CONTINUED: • Does the project result in 2,000 square feet, or more, of new plus replaced hard surface area? OR Does the land disturbing activity total 7,000 square feet or greater? Yes No Minimum Requirements#1 through#5 apply to the new and replaced hard Minimum Requirement#2 applies. surfaces and the land disturbed. Next Question Does the project add 5,000 square feet or more of new hard surfaces? OR Convert%acres or more of vegetation to lawn or landscaped areas? OR Convert 2.5 acres or more of native vegetation to pasture? Yes No T All Minimum Requirements apply Next Question to the new hard surfaces and the Is this a road No converted vegetation areas. related project? T Yes Does the project add 5,000 square feet or more of new hard surfaces? Yes T No Is the total of new plus replaced hard surfaces Do the new hard V 5,000 square feet or more, surfaces add 50% or NO No AND more to the existing ` additional ♦ does the value of the proposed improvements reqeq uirements. hard surfaces within - including interior improvements - exceed the project limits? 50% of the assessed value (or replacement value) of the existing site improvements? Yeses All Minimum Requirements apply to the new and replaced hard surfaces and converted vegetation areas. Yes Figure 1-2.4.2 Flow Chart for Determining Requirements for Redevelopment DEPARTMENT OF Revised June2015 ECOLOGY Please see htlp.iMwyw.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. Page 6 of 8 PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT c` '�^ CLEARING /GRADING PERMIT APPLICATION & CHECKLIST: Mailing Address: P.O. Box 547,Anacortes, WA 98221 ;? wh Office Location: 904 6rh Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 SECTION 6, CLEARING/GRADING PERMIT APPLICATION ADDITIONAL INFORMATION: BACKGROUND: for application of minimum requirements are A clearing and grading permit may be necessary exceeded. Open, uncovered retention/detention whenever clearing (destruction and removal of facilities shall be considered impervious surfaces vegetation) or grading (excavation or filling) is for purposes of runoff modeling. AMC being done in the City of Anacortes. Appendix J 19.76.040. of the International Building Code (IBC) sets forth rules and regulations to control "Hard surface" means an impervious surface, a excavation, grading, and earth work permeable pavement, or a vegetated roof. AMC construction including fills and embankments, 19.76.040. establishes the administrative procedure for issuance of permits and provides for approval of "Land disturbing activity" means any activity that plans and inspection of grading construction. results in a change in the existing soil cover(both Anacortes Municipal Code (AMC) 19.78 also vegetative and non-vegetative) and/or the provides regulations for clearing and grading of existing soil topography. Land disturbing activities property, and AMC 19.76 identifies how include, but are not limited to clearing, grading, stormwater must be addressed. filling, and excavation. Compaction that is associated with stabilization of structures and DEFINITIONS: road construction shall also be considered a land "Impervious surface" means a non-vegetated disturbing activity. Vegetation maintenance surface area which either prevents or retards the practices, including landscape maintenance and entry of water into the soil mantle as under gardening, are not considered land-disturbing natural conditions prior to development. A non- activity. Stormwater facility maintenance is not vegetated surface area which causes water to considered land disturbing activity if conducted run off the surface in greater quantities or at an according to established standards and increased rate of flow from the flow present procedures. AMC 19.76.040. under natural conditions prior to development. Common impervious surfaces include, but are Additional applicable definitions and regulations not limited to, roof tops, walkways, patios, can be found in the Anacortes Municipal Code driveways, parking lots or storage areas, and the Department of Ecology 2012 Stormwater concrete or asphalt paving,gravel roads, packed Management Manual for Western Washington. earthen materials, and oiled, macadam or other surfaces which similarly impede the natural infiltration of stormwater. Open, uncovered retention/detention facilities shall not be considered as impervious surfaces for the purposes of determining whether the thresholds Page 7 of 8 PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT °� CLEARING/ GRADING PERMIT APPLICATION & CHECKLIST: Mailing Address:P.O. Box 547, Anacortes, WA 98221 Office Location: 904 6"Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 TREE REMOVAL AND FOREST PRACTICES: Fill and grading activities are commonly associated with logging activities. Individuals wishing to remove trees from their property should first contact the Department of Natural Resources(DNR)at 360-856-3500 to determine if a Forest Practice Application (FPA) is required. NOTE: The preceding information is provided in summary and does not take the place of full text of the adopted regulations in the Anacortes Municipal Code. Please contact City of Anacortes Planning, Community & Economic Development Department staff if you have questions or need assistance. Page 8 of 8 f,,,d&-- e ./L 4 1 4,A16- c'� , A,6/,,?ti,-/ j<° z.e,ii —My/,,e.'p n✓ ,40 cp.: AV 7: diviee;-- -- 44/4 98 z- [O �_ g H -'' APR 0 5 2018- ,i.ii , , .66.-. -7/- 6i/6 �1 S let% 1 *Ili- �� - -Pk' 1 ��U •1 \*.- 110.14A N 4, Ar„,, ,4, F/7/. N.�r�1� a, -14, 41, — 10 ie.orow.,,,,c7t:te_04 4 .cluireretd, • • to N ii AZ- r 26 • • • • rm. • 9 & baw-f 1 K '% i- .t`„c ' ---r„ Al ie-.S C) ✓td/ y I' ll /IV 6P /9 ifi 4' .-- �il4 9 lzz-j i r 4r 67io le APR p 5 . ,C(1041/ J ?Q CL-- :' i C i d a (y e (4i.---ti c T/e.7 if-4. C et /Diefur I 1-1:— C nry _ l� 4-3 05 Ifrfdlt'-- i dv C 7 e. ;c. d; 4 4., Pit �ji." AAA ( • .,J64 - _?! r- k G f' ` -____-.< �� _ -- 1 _- *0- ._ - - ---- - ---- - __ _ _ ass4 4rie.,,..._ efe, ,ff.-fir p b _ fig_if..-7 _ iiikroil No. Is 4,, 00, ________.. ,04 - 1111 .1‘s. iiir „ 1-6 El 7( &Sid N ... . 1,,, Oa 2. 4.4111s- frbe&sai %as* - 15 ri 115-(4,14 • *41'.. .' di - -1 \ ' %StIlls - 7 IL 0 IV flIA A liciret L. 4) Ikk ,_:, _ _ a _ _ _ , _ _ t„- - (,,pc- eirci- vv -- OA% . - , . i b \at 11 I <-= 2 6 - - I '� ,; •.`it'sI '2905 � ' 1202 i$ i ` 2802 j i { r :z _ 2909. i I I - ,• Y, - -_>• - , x • , r 8 � r - ._ , : "302�2� `7 - - ;.o�; -1291 '1 •1 -- -- '12!15 280. j P� _ - PS , pco -. NpS t Fes= , ' :t 1- :k280,1 •,!` 33007- Q-', - ;r I ti _ r A ` to \ r,- s r Q } ` v 28Q7-.: - •2906. I 'chi '. -.1/4 ; 1 � ,� 1if. T � � + r - 57 bi,v-. •_ , M 918. 2 • /A ry�L ` I ♦ . t • • .4"-'S ` 14 't-•"a ,r r-5 �S �3QQ2.. • , _•♦ ~ 1 r.a.v� '.1', ;3008sr !rL _ i r r • ; i 02115 3012, : iYrae . a2161 ' t 1-3 9 i 1 0� •'\ tA.' _ 'd• • i t . r ` r. L ', , r• ' a , 3003'' 1307 Si , P . , O � Si rr �, , 1318 rv, Zw` t4 a � , f 3`11 3v0.4. ), . .. ,. . f lit ,3011 F y�' g 14 vie r R . m• • 3p,13 , +, r C' ,,v s2, 140 . 3019 ,y �IL • --�, , 02 -- 14Q4`; • .' , '�4 <<' 4. ¢3103 • Y �� 13,10) 1318 113)19 f -„• ,� • r,`4 • �� { } iy • 1 1 I' � • ‘ '') ice :- i ; • r. t. _ • /F�. . v � ; ," fi af''� r • fin u!.- - cam JI E,# '- i n_, �•l, - ••' v M ,1315 1; , r a -�. r�, s 1,� 2810 J:2806 . •_ Y - r tom'✓ - • ,1320i 4 <..: 1405 t28,1'4ti ` 2802. , • ji/ .2803 f L 8 Y2807 =� , � // 1= . - f‘reL.,,--- - - - . y / 2 4 81;1 30,18, N-� 28;17 a. \ 300,1j \ , 2716 128r15, $; /: 3020, E ' y ' 3.104 X 3007'" • P - f C _ ___-----•- \1 _'_ %2718 - .31 3116 ke'S t i ; E � • 2r7 ': 3019! 30 15j �� 8a1 9 720 : r 07 E , A // 31090. A • ' . �. \ 2802 ^ � ' - 4. 11 � r • s27r19f 2804; s11. 19 Y , • r- t : P.' cti 1 ` _ HI� �' / , + ..�f• l Yam+ rel 1. f a • t 1 ♦,,1;i-. \ t { �' . " it ,:,$Y• el 1 1 1 ' • �[ d -1 11 1, -}018 j"3V�111;' r ; � ) {` �j _ - � f) lea j i 2809• • 1 ' :;�T'ti ^, ° : E • 3,1 02 \ ;28G8 i2813 ti ot f it t. — -<' - 4 } Y- - i i -1 /, Ik, '• _ • p,, "� *tr: ,`x�-. , •,• ,hr:4_ :31 ;10, % I 3_ �R` 28111' • t -i, `' :••jE. � t• . i. r`P. t^ f ! et { l_,` : - `.� • , .r a, x GEAR , ; 810 2812E .. ' - y 16011,. r' • -� • i,1 1c,} 1(. f \f.600 ,, ° , 2814' Ye '' •." . tF • _ ` pp tY •‘ . " i 14 s II ', I <i j i _ nZ , ,* \ - , • E 7L>r4 - 4. 1 �,k :'•`, "R _ j - „, -.1. e t; X - , :4 > �_ t Yt f 1/21 / 1 ' ti • 1,4,604 Y ";, r 81.8 ' Rt6c it y AA: ,.r.c 1 • - t:. 1 A. • k9 . L .a •- { -- _ ' tlY' ,y�11' '*.,.1 �fy M"; , i+ .,• ♦�.. _ t 1 '- p• V '• Nr . ` I "^7-`_``4�_,_� .. �. • yt,• (1612: {.J{J� •,, t, ., .. • it I. 3 �' • If,.I �. - _; ,ylxr•l � • ' , i', sy .-r ' it i' r .. • - ` Fy i-.ter . r. 4 - C . 1.6Q8.� _ Yf• Abl. " . ., .'�-' --,, t • , r5' � '. ir- : 4 , .• ; 31'09i 1 ,; <• 1 _ ,� •s •, � . r ,�, 29,16.E Y + ; r . ! r.; r' 444 ,; vs ! ! t. ; ' o- -arc!.. L J � 2504 ` . - 2912 ' I • �•• _ / , ,,,e, . 1; n•• .. '•, q ' .r �,( ',.isk . 1 i• ) J � li '^, .'. . 'iR h.� 'n -' s. /' 2 9�8 ` _.-`-// - �ir. 1,616 , • . ' I, 't'' • - • -. • - ---. * 't. 1 ' lt% -* ' • \ ' i ,, , �,: r, :t; .4 {, •. .{y 'il �fi /41 {+ F' ry T^- ry . e e: iv'''.';' Y I ' , �`' ':,tif 3' ' �s ti t ''; y � g ,� ' ' ' 1620`' $ ,' 4 c 2913 ;2�09 2907A ♦ •I . . „tn., .! �� i� _` ••` ate ' SLR. -4 -.>.'►r- C. .t "A »! .f .4 � l• t" 3 - _"LP � • L}' i .,�; y: °: 2911 • f -. ..- L� s L i /. PVE .5 3001 1218 S� �ZN 2801 3007 3011 2906 2807 3019 2815 2918 vo A 7 3008 3002 m-P 2907 1306 �m 1 m 10 oEi 6 1S 1.307 ! :0 : 3003 1318 7G 3011 1401 m 3013 1320 1403alS,Wail* 3019 1402 1404 3103 1310 1318 1319 4.1-01110110 I 2810 2806 d 1 0 1320 1405 2814 2802 ', 2803 3004 3008 2807 2712 2708 3014 2714 3018 3001 R 2 2817 2815 2716 3020 3104 �3�p 0- 3007 3110 3116 2707 3019 3015 28'19 2720 3101 2715 3109 2802 2705 3 2804 2719 119 2806 3004 1 3018 3010 2809 3102 2808 '2813 2815 1 3110 2811 P� 3120 a.0, P 1601 2810 2812 2817 1600 2814 2818 1604 2819 1612 1 3109 1608 v 2916 2901 i 2912 2904 i 2908 2903 1616 2917 17TH ST 1620 2913 2909 2907 , 2911 2905 291,5 1 I i i i i i Print Window Page 1 of 1 Details for Parcel: P58429 Jurisdiction: ANACORTES Zoning Designation: Please contact the city of ANACORTES for ANACORTES zoning information. Recorded Documents Excise Affidavits " 1W Documents scanned and recorded by the Auditor's office Document scans of excise affidavits Parcel Number XreflD Quarter Section Township Range P58429 3809-507-003-0000 23 35 01 Owner Information Site Address(es) Map Links ROYAL CELTIC INVEST& HOLDING CO Open in iMap C/O TAYLERSON ROBERT/KATHLEEN Assessor's Parcel Map: PO BOX 1473 PDF I DWF ANACORTES, WA 98221 Current Legal Description Abbreviation Definitions N P TO ANACORTES, BLOCK 507, EAST 79.98 FEET OF BLOCK 507. BEING A PORTION OF SURVEY AF#9902160224 VOLUME 21 PAGE 141. EAST 79.98 FEET OF BLOCK 507. BEING A PORTION OF SURVEY AF#9902160224 VOLUME 21 PAGE 141. 2017 Values for 2018 Taxes* Sale Information 2018 Property Tax Summary Building Market Value $.00 Deed Type WARRANTY DEED 2018 Taxable Value $109,100.00 Land Market Value +$109,100.00 Sale Date 2006-07-27 General Taxes $1,143.53 Total Market Value $109,100.00 Sale Price $215,000.00 Special Assessments/Fees Assessed Value $109,100.00 Total Taxes $1,143.53 Taxable Value $109,100.00 *Effective date of value is January 1 of the assessment year(2017) Legal Description at time of Assessment *Land Use WAC 458-53-030 Neighborhood (21AVIEW)ANACORTES VIEW RESIDENTIAL Levy Code 0900 Fire District School District SD103 Exemptions Utilities Acres 0.20 Improvement 1 Attributes Summary Building Style SINGLE FAMILY RESIDENCE Year Built Foundation Above Grade Living Area Exterior Walls Finished Basement Roof Covering *Total Living Area Heat/Air Conditioning Unfinished Basement Fireplace *Total Garage Area Bedrooms Bathrooms For additional information on individual segments see Improvements tab * Land Use codes are for assessment administration purposes and do not represent jurisdictional zoning. Please contact the appropriate planning department in your jurisdiction for land use questions. *Total living area includes above grade living area and finished basement area. * Garage square footage includes all garage areas; basement garages, attached garages, detached garages, etc. Assessment data for improvements is based on exterior inspections. Please contact the Assessor's office if the information does not accurately reflect the interior characteristics. https://www.skagitcounty.net/Search/Property/ 4/9/2018 I' PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT c., ` � CLEARING/ GRADING PERMIT APPLICATION & CHECKLIST: i t Mailing Address: P.O. Box 547, Anacortes, WA 98221 ! 6 V: . , � -, Office Location: 904 61h Street, Anacortes WA 98821 '` 1B Phone: (360) 299-1984, Fax: (360) 293-1938 Pit p 5 20 1 PLEASE REFER TO THE CLEARING& GRADING PERMIT CHECKLIST BELOW FOR SUBMITTAL REQUI, 'i ' p°�pCaR } SECTION 1 CLEARING /GRADING PERMIT APPLICATION: I' PROJECT ADDRESS(Street,Suite#): Parcel(s)#: p„S'g/mac c'0/ W�.Sr- _3� e ids, Total Site Area (property size): 0Ae- e l APPLICANT NAME: Phone#: -3hee:1/go e'v,✓s ccaroiL/ 6�.1.--t. 3 0•- 3 ?/—60/0 Address(Street, City,State,Zip): „ E-Mail Address: /cif 6-147P<?!t/ / ,:to4' e_,-e i J h.e ikepqrt4.ci I . Cac4,. P PERT OWN NAM Phone#: /ate Sravv�/ n w+ A` A'4•fiei7..t 6o "/ Ad8ress Street, City, Sta(e,Zip): Email Address: CONTACT PERSON NAM, : Phone #: G''. I 9 ,e¢,"d /L 36.0 -- 3'9f- Gd/o Address(Street, City State,Zip): Email Address: H3o3 ofri4e.,iv he;f//4v �v��ii y. h e1.74om e.ei' ..:.-cam CONTR�ACTOR * / Phone#: � / �✓ 0 ems/+---- 4-4cG4v7v L L .j‘G' ' 37f-60/0 Address(Street, City,Ave/ State,Zip): Email Address: / �/ / / C' r s YG' it(j 6.Ae/C) '' '7 �--i- -,1/5' `'J ev-5. + /C 24v.:11 / , ',rt , *All Contractors&Subcontractors must have a valid Professional License'#: Exp. Date: 1 City of Anacortes business license prior to doing work in the City. Contact the City's Finance Department at(360) Professional License#: Exp. Date: 299-1968. Are there critical areas(wetlands,streams,steep slopes, etc.) in the project vicinity? Yes Et No ❑ Total area of land-disturbing activity: id00 SO' Will project involve tree removal? Yes El No Grading quantities: Cut .3O0 CY; Fill /oO CY;TOTAL ,/oo CY Description of location and route to disposal site for excavated material (if to be wasted off-site): Signature: I declare under penalty of perjury that the information I have provided on this form/application is true, correct, and complete, and that I am the property owner or duly authorized agent of the property owner to submit a permit application to the City of Anacortes. Print Name: Cv i d 9A 74 Owner ❑ Agent JR, Other El Signature: KX1 Date: 3 -z/-moo/ S! ((e0 `1 i � r/, •�0 5 �(/� �, Page lof8 1 -1-al 4'e i94ild/e. a'h LI'4a7 ( 4 pi7F;r`, lI v'+ fit ► `av /-Je h4-4 '` � PLANNING, COMMUNITY,& ECONOMIC DEVELOPMENT DEPARTMENT CLEARING/ GRADING PERMIT APPLICATION & CHECKLIST: Mailing Address: P.O. Box 547, Anacortes, WA 98221 \:P Office Location: 904 6th Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 SECTION 2 CLEARING /GRADING PERMIT APPLICATION CHECKLIST: 37 -o n 0 -o-cs CLEARING/GRADING APPLICATION SUBMITTAL REQUIREMENTS: n 61 The number indicates the number of copies for submittal (if applicable). a O )' am Application Fees (see Land Use Permit Fee Schedule) Clearing/Grading Permit Application (See Section 1 Above) 3 Impervious/Hard Surface Worksheet(see Section 3 below) 3 Determination of applicable minimum requirements per the adopted Stormwater 3 Management Manual for Western Washington (see Section 4) Construction Stormwater Pollution Prevention Plan(Construction SWPPP) and 3 construction sediment transport potential worksheet.(see Section 5) Site Plan (see Section 6),which may include elements of the SWPPP 3 Cross Section Plan (show dimensions of original and proposed grading;see 3 sample drawing) Arborist Report-inquire with PCED to determine if required 3 State Environmental Policy Act(SEPA)Checklist(Required only if>500 cubic yards OR if 3 any work on land covered by water) Critical Area Report(wetlands, FWHCAs,streams,geologically hazardous areas, 3 frequently flooded areas,etc.)—inquire with PCED to determine if required Copy of Forest Practices permit(FPA) issued by DNR, if applicable 1 Page 2 of 8 PLANNING, COMMUNITY, &ECONOMIC DEVELOPMENT DEPARTMENT v`s Y o� CLEARING/GRADING PERMIT APPLICATION & CHECKLIST: lPh Mailing Address: P.O. Box 547,Anacortes, WA 98221 `AlOc ti9cov,`` Office Location: 904 bah Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 SECTION 3 IMPERVIOUS SURFACE 11VORKSHEET: TYPE OF SUBTOTAL OF PROPOSED PROPOSED IMPERVIOUS OR EXISTING SQ': NEW+ REPLACED REPLACED SQ': NEW SQ': HARD SURFACE: (SQ. FT.): House+attached garage roof area: (_% "- I F Detached structure(s) roof '` -- - rili area: AIM 'el- Parking area(s): , 1111, Patio(s): .-- - r L Driveway(s): . _ Sidewalk(s): ;_ — -- _ ___ Permeable pavement or i ��f� vegetated roof ) �- `C� (hard surface): Other: � ' ° X-41-4i t:L 7 / f /✓�'vv&-4-S I TOTAL: Page 3 of 8 PLANNING, COMMUNITY, &ECONOMIC DEVELOPMENT DEPARTMENT Y ° AM( CLEARING/GRADING PERMIT APPLICATION & CHECKLIST: l�trl w Mailing Address: P.O. Box 547, Anacortes, WA 98221 ��coax Office Location: 904 6th Street,Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 SECTION 4 CLEARING/GRADING PERMIT APPLICATION SITE PLAN CHECKLIST: 1. All site plans must be clearly and accurately drawn on 8%x 11 (letter) or 11 x 17 (tabloid) paper. If you need more space you may logically divide your site and draw each portion on a different page,or use layers.etc....)scale. 2. Draw plans to a standard engineering scale (i.e., 1"=10', 1"=20', etc.). List the graphic scale used. 3. Title block: Include landowner name(s), parcel number, &site address. 4. Provide a north arrow. 5. Property boundaries (from a recorded survey), lot dimensions, property corner locations, &adjoining street name(s). 6. All public and private easements (e.g. utility, drainage, access,etc.). 7. Location, dimensions,and distances to property line of all existing and proposed structures, drain- fields, septic tanks, and wells.Additionally show zoning setback lines. 8. Location of driveways (existing and proposed). 9. List lot size square footage & acreage; provide impervious surface calculations (existing and proposed). 10. Location and type of utilities(existing&proposed), connection to the sanitary-sewer, storm-water, and potable water service. 11. Location,type and size of existing significant trees (deciduous and evergreen trees greater than 6 inches in diameter at five feet above grade) and native vegetation; show location of clearing limits. 12. Provide corner elevations of the site&lot topography of existing& proposed grading (drawn at either 2 or 5 foot contours). Use contour lines or arrows to show direction and percent(%)slope(s). Identify any erosion or landslide areas as well as any potential unstable slopes greater than 15%. (Percentage%slope= Rise (drop in height) divided by Run (distance) multiplied by 100. Show contours extending onto adjacent properties and proposed transitions. 13. Location of critical areas and buffers (i.e., streams/creeks,wetlands, and geologically hazardous areas/steep slopes)that are either on the subject property or within 300 feet of it—include a critical area report if applicable. 14. Location of adjacent marine or freshwater shoreline, bulkhead,ordinary high water mark(OHWM) and setback.A shoreline exemption may be required—inquire with PCED. 15. Stormwater management:Show appropriate elements of the Construction SWPPP, including: a. Areas of vegetation to be preserved; clearing limits b. Drainage ditches and swales (existing/proposed) c. Construction access d. Temporary and permanent stormwater retention or detention facilities; sediment and erosion controls; slope protection,etc. e. Infiltration systems (existing/proposed) See the Stormwater Management Requirements handout for other requirements. Page 4 of 8 PLANNING, COMMUNITY, &ECONOMIC DEVELOPMENT DEPARTMENT .6 CLEARING/GRADING PERMIT APPLICATION & CHECKLIST: j�. y Mailing Address: P.O. Box 547, Anacortes, WA 98221 ti� w Office Location: 904 6rh Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 SECTION 5 DETERMINATION OF STORMWATER MANAGEMENT MINIMUM REQUIREMENTS: Start Here 1 Does the site have 35% Yes See Redevelopment Minimum or more of existing ► Requirements and Flow Chart impervious coverage? (Figure 1-2.4.2). No Does the project convert%4 acres or more of vegetation to Does the project result in lawn or landscaped areas,or 5,000 square feet,or No convert 2.5 acres or more of greater,of new plus to native vegetation to pasture? replaced hard surface area? \No Yes Yes Does the project result in 2,000 square feet,or greater,of new plus All Minimum Requirements replaced hard surface area? apply to the new and replaced hard surfaces and converted vegetation areas. Yes No Does the project have land Minimum Requirements#1 disturbing activities of 7,000 through#5 apply to the new ' Yes square feet or greater? and replaced hard surfaces and the land disturbed. No V Minimum Requirement#2 applies. Figure 1-2.4.1 Flow Chart for Determining Requirements for New Development DEPARTMENT OF Revised June 2015 ECOLOGY Please see http:/M+ww.ecy.wa.gov/copyright html for copyright notice including permissions, State of Washington limitation of liability,and disclaimer Page 5 of 8 PLANNING, COM1VIj.TNITY, & ECONOMIC DEVELOPMENT DEPARTMENT • 3( 0 �' °^ CLEARING / GRADING PERMIT APPLICATION & CHECKLIST: Mailing Address: P.O. Box 547, Anacortes, WA 98221 \,7+111101 - Office Location: 904 6th Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 • SECTION 5, CONTINUED: • Does the project result in 2,000 square feet, or more, of new plus replaced hard surface area? OR Does the land disturbing activity total 7,000 square feet or greater? Yes No Minimum Requirements#1 through#5 apply to the new and replaced hard Minimum Requirement#2 applies. surfaces and the land disturbed. Next Question Does the project add 5,000 square feet or more of new hard surfaces? OR Convert%acres or more of vegetation to lawn or landscaped areas? OR Convert 2.5 acres or more of native vegetation to pasture? Yes No T All Minimum Requirements apply Next Question to the new hard surfaces and the Is this a road No converted vegetation areas. related project? T Yes Does the project add 5,000 square feet or more of new hard surfaces? Yes T No Is the total of new plus replaced hard surfaces Do the new hard V 5,000 square feet or more, surfaces add 50% or NO No AND more to the existing ` additional ♦ does the value of the proposed improvements reqeq uirements. hard surfaces within - including interior improvements - exceed the project limits? 50% of the assessed value (or replacement value) of the existing site improvements? Yeses All Minimum Requirements apply to the new and replaced hard surfaces and converted vegetation areas. Yes Figure 1-2.4.2 Flow Chart for Determining Requirements for Redevelopment DEPARTMENT OF Revised June2015 ECOLOGY Please see htlp.iMwyw.ecy.wa.gov/copyright.html for copyright notice including permissions, State of Washington limitation of liability, and disclaimer. Page 6 of 8 PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT c` '�^ CLEARING /GRADING PERMIT APPLICATION & CHECKLIST: Mailing Address: P.O. Box 547,Anacortes, WA 98221 ;? wh Office Location: 904 6rh Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 SECTION 6, CLEARING/GRADING PERMIT APPLICATION ADDITIONAL INFORMATION: BACKGROUND: for application of minimum requirements are A clearing and grading permit may be necessary exceeded. Open, uncovered retention/detention whenever clearing (destruction and removal of facilities shall be considered impervious surfaces vegetation) or grading (excavation or filling) is for purposes of runoff modeling. AMC being done in the City of Anacortes. Appendix J 19.76.040. of the International Building Code (IBC) sets forth rules and regulations to control "Hard surface" means an impervious surface, a excavation, grading, and earth work permeable pavement, or a vegetated roof. AMC construction including fills and embankments, 19.76.040. establishes the administrative procedure for issuance of permits and provides for approval of "Land disturbing activity" means any activity that plans and inspection of grading construction. results in a change in the existing soil cover(both Anacortes Municipal Code (AMC) 19.78 also vegetative and non-vegetative) and/or the provides regulations for clearing and grading of existing soil topography. Land disturbing activities property, and AMC 19.76 identifies how include, but are not limited to clearing, grading, stormwater must be addressed. filling, and excavation. Compaction that is associated with stabilization of structures and DEFINITIONS: road construction shall also be considered a land "Impervious surface" means a non-vegetated disturbing activity. Vegetation maintenance surface area which either prevents or retards the practices, including landscape maintenance and entry of water into the soil mantle as under gardening, are not considered land-disturbing natural conditions prior to development. A non- activity. Stormwater facility maintenance is not vegetated surface area which causes water to considered land disturbing activity if conducted run off the surface in greater quantities or at an according to established standards and increased rate of flow from the flow present procedures. AMC 19.76.040. under natural conditions prior to development. Common impervious surfaces include, but are Additional applicable definitions and regulations not limited to, roof tops, walkways, patios, can be found in the Anacortes Municipal Code driveways, parking lots or storage areas, and the Department of Ecology 2012 Stormwater concrete or asphalt paving,gravel roads, packed Management Manual for Western Washington. earthen materials, and oiled, macadam or other surfaces which similarly impede the natural infiltration of stormwater. Open, uncovered retention/detention facilities shall not be considered as impervious surfaces for the purposes of determining whether the thresholds Page 7 of 8 PLANNING, COMMUNITY, & ECONOMIC DEVELOPMENT DEPARTMENT °� CLEARING/ GRADING PERMIT APPLICATION & CHECKLIST: Mailing Address:P.O. Box 547, Anacortes, WA 98221 Office Location: 904 6"Street, Anacortes WA 98821 Phone: (360) 299-1984, Fax: (360) 293-1938 TREE REMOVAL AND FOREST PRACTICES: Fill and grading activities are commonly associated with logging activities. Individuals wishing to remove trees from their property should first contact the Department of Natural Resources(DNR)at 360-856-3500 to determine if a Forest Practice Application (FPA) is required. NOTE: The preceding information is provided in summary and does not take the place of full text of the adopted regulations in the Anacortes Municipal Code. Please contact City of Anacortes Planning, Community & Economic Development Department staff if you have questions or need assistance. Page 8 of 8 f,,,d&-- e ./L 4 1 4,A16- c'� , A,6/,,?ti,-/ j<° z.e,ii —My/,,e.'p n✓ ,40 cp.: AV 7: diviee;-- -- 44/4 98 z- [O �_ g H -'' APR 0 5 2018- ,i.ii , , .66.-. -7/- 6i/6 �1 S let% 1 *Ili- �� - -Pk' 1 ��U •1 \*.- 110.14A N 4, Ar„,, ,4, F/7/. N.�r�1� a, -14, 41, — 10 ie.orow.,,,,c7t:te_04 4 .cluireretd, • • to N ii AZ- r 26 • • • • rm. • 9 & baw-f 1 K '% i- .t`„c ' ---r„ Al ie-.S C) ✓td/ y I' ll /IV 6P /9 ifi 4' .-- �il4 9 lzz-j i r 4r 67io le APR p 5 . ,C(1041/ J ?Q CL-- :' i C i d a (y e (4i.---ti c T/e.7 if-4. C et /Diefur I 1-1:— C nry _ l� 4-3 05 Ifrfdlt'-- i dv C 7 e. ;c. d; 4 4., Pit �ji." AAA ( • .,J64 - _?! r- k G f' ` -____-.< �� _ -- 1 _- *0- ._ - - ---- - ---- - __ _ _ ass4 4rie.,,..._ efe, ,ff.-fir p b _ fig_if..-7 _ iiikroil No. Is 4,, 00, ________.. ,04 - 1111 .1‘s. iiir „ 1-6 El 7( &Sid N ... . 1,,, Oa 2. 4.4111s- frbe&sai %as* - 15 ri 115-(4,14 • *41'.. .' di - -1 \ ' %StIlls - 7 IL 0 IV flIA A liciret L. 4) Ikk ,_:, _ _ a _ _ _ , _ _ t„- - (,,pc- eirci- vv -- OA% . - , . i b \at 11 I <-= 2 6 - - I '� ,; •.`it'sI '2905 � ' 1202 i$ i ` 2802 j i { r :z _ 2909. i I I - ,• Y, - -_>• - , x • , r 8 � r - ._ , : "302�2� `7 - - ;.o�; -1291 '1 •1 -- -- '12!15 280. j P� _ - PS , pco -. NpS t Fes= , ' :t 1- :k280,1 •,!` 33007- Q-', - ;r I ti _ r A ` to \ r,- s r Q } ` v 28Q7-.: - •2906. I 'chi '. -.1/4 ; 1 � ,� 1if. T � � + r - 57 bi,v-. •_ , M 918. 2 • /A ry�L ` I ♦ . t • • .4"-'S ` 14 't-•"a ,r r-5 �S �3QQ2.. • , _•♦ ~ 1 r.a.v� '.1', ;3008sr !rL _ i r r • ; i 02115 3012, : iYrae . a2161 ' t 1-3 9 i 1 0� •'\ tA.' _ 'd• • i t . r ` r. L ', , r• ' a , 3003'' 1307 Si , P . , O � Si rr �, , 1318 rv, Zw` t4 a � , f 3`11 3v0.4. ), . .. ,. . f lit ,3011 F y�' g 14 vie r R . m• • 3p,13 , +, r C' ,,v s2, 140 . 3019 ,y �IL • --�, , 02 -- 14Q4`; • .' , '�4 <<' 4. ¢3103 • Y �� 13,10) 1318 113)19 f -„• ,� • r,`4 • �� { } iy • 1 1 I' � • ‘ '') ice :- i ; • r. t. _ • /F�. . v � ; ," fi af''� r • fin u!.- - cam JI E,# '- i n_, �•l, - ••' v M ,1315 1; , r a -�. r�, s 1,� 2810 J:2806 . •_ Y - r tom'✓ - • ,1320i 4 <..: 1405 t28,1'4ti ` 2802. , • ji/ .2803 f L 8 Y2807 =� , � // 1= . - f‘reL.,,--- - - - . y / 2 4 81;1 30,18, N-� 28;17 a. \ 300,1j \ , 2716 128r15, $; /: 3020, E ' y ' 3.104 X 3007'" • P - f C _ ___-----•- \1 _'_ %2718 - .31 3116 ke'S t i ; E � • 2r7 ': 3019! 30 15j �� 8a1 9 720 : r 07 E , A // 31090. A • ' . �. \ 2802 ^ � ' - 4. 11 � r • s27r19f 2804; s11. 19 Y , • r- t : P.' cti 1 ` _ HI� �' / , + ..�f• l Yam+ rel 1. f a • t 1 ♦,,1;i-. \ t { �' . " it ,:,$Y• el 1 1 1 ' • �[ d -1 11 1, -}018 j"3V�111;' r ; � ) {` �j _ - � f) lea j i 2809• • 1 ' :;�T'ti ^, ° : E • 3,1 02 \ ;28G8 i2813 ti ot f it t. — -<' - 4 } Y- - i i -1 /, Ik, '• _ • p,, "� *tr: ,`x�-. , •,• ,hr:4_ :31 ;10, % I 3_ �R` 28111' • t -i, `' :••jE. � t• . i. r`P. t^ f ! et { l_,` : - `.� • , .r a, x GEAR , ; 810 2812E .. ' - y 16011,. r' • -� • i,1 1c,} 1(. f \f.600 ,, ° , 2814' Ye '' •." . tF • _ ` pp tY •‘ . " i 14 s II ', I <i j i _ nZ , ,* \ - , • E 7L>r4 - 4. 1 �,k :'•`, "R _ j - „, -.1. e t; X - , :4 > �_ t Yt f 1/21 / 1 ' ti • 1,4,604 Y ";, r 81.8 ' Rt6c it y AA: ,.r.c 1 • - t:. 1 A. • k9 . L .a •- { -- _ ' tlY' ,y�11' '*.,.1 �fy M"; , i+ .,• ♦�.. _ t 1 '- p• V '• Nr . ` I "^7-`_``4�_,_� .. �. • yt,• (1612: {.J{J� •,, t, ., .. • it I. 3 �' • If,.I �. - _; ,ylxr•l � • ' , i', sy .-r ' it i' r .. • - ` Fy i-.ter . r. 4 - C . 1.6Q8.� _ Yf• Abl. " . ., .'�-' --,, t • , r5' � '. ir- : 4 , .• ; 31'09i 1 ,; <• 1 _ ,� •s •, � . r ,�, 29,16.E Y + ; r . ! r.; r' 444 ,; vs ! ! t. ; ' o- -arc!.. L J � 2504 ` . - 2912 ' I • �•• _ / , ,,,e, . 1; n•• .. '•, q ' .r �,( ',.isk . 1 i• ) J � li '^, .'. . 'iR h.� 'n -' s. /' 2 9�8 ` _.-`-// - �ir. 1,616 , • . ' I, 't'' • - • -. • - ---. * 't. 1 ' lt% -* ' • \ ' i ,, , �,: r, :t; .4 {, •. .{y 'il �fi /41 {+ F' ry T^- ry . e e: iv'''.';' Y I ' , �`' ':,tif 3' ' �s ti t ''; y � g ,� ' ' ' 1620`' $ ,' 4 c 2913 ;2�09 2907A ♦ •I . . „tn., .! �� i� _` ••` ate ' SLR. -4 -.>.'►r- C. .t "A »! .f .4 � l• t" 3 - _"LP � • L}' i .,�; y: °: 2911 • f -. ..- L� s L i /. PVE .5 3001 1218 S� �ZN 2801 3007 3011 2906 2807 3019 2815 2918 vo A 7 3008 3002 m-P 2907 1306 �m 1 m 10 oEi 6 1S 1.307 ! :0 : 3003 1318 7G 3011 1401 m 3013 1320 1403alS,Wail* 3019 1402 1404 3103 1310 1318 1319 4.1-01110110 I 2810 2806 d 1 0 1320 1405 2814 2802 ', 2803 3004 3008 2807 2712 2708 3014 2714 3018 3001 R 2 2817 2815 2716 3020 3104 �3�p 0- 3007 3110 3116 2707 3019 3015 28'19 2720 3101 2715 3109 2802 2705 3 2804 2719 119 2806 3004 1 3018 3010 2809 3102 2808 '2813 2815 1 3110 2811 P� 3120 a.0, P 1601 2810 2812 2817 1600 2814 2818 1604 2819 1612 1 3109 1608 v 2916 2901 i 2912 2904 i 2908 2903 1616 2917 17TH ST 1620 2913 2909 2907 , 2911 2905 291,5 1 I i i i i i Print Window Page 1 of 1 Details for Parcel: P58429 Jurisdiction: ANACORTES Zoning Designation: Please contact the city of ANACORTES for ANACORTES zoning information. Recorded Documents Excise Affidavits " 1W Documents scanned and recorded by the Auditor's office Document scans of excise affidavits Parcel Number XreflD Quarter Section Township Range P58429 3809-507-003-0000 23 35 01 Owner Information Site Address(es) Map Links ROYAL CELTIC INVEST& HOLDING CO Open in iMap C/O TAYLERSON ROBERT/KATHLEEN Assessor's Parcel Map: PO BOX 1473 PDF I DWF ANACORTES, WA 98221 Current Legal Description Abbreviation Definitions N P TO ANACORTES, BLOCK 507, EAST 79.98 FEET OF BLOCK 507. BEING A PORTION OF SURVEY AF#9902160224 VOLUME 21 PAGE 141. EAST 79.98 FEET OF BLOCK 507. BEING A PORTION OF SURVEY AF#9902160224 VOLUME 21 PAGE 141. 2017 Values for 2018 Taxes* Sale Information 2018 Property Tax Summary Building Market Value $.00 Deed Type WARRANTY DEED 2018 Taxable Value $109,100.00 Land Market Value +$109,100.00 Sale Date 2006-07-27 General Taxes $1,143.53 Total Market Value $109,100.00 Sale Price $215,000.00 Special Assessments/Fees Assessed Value $109,100.00 Total Taxes $1,143.53 Taxable Value $109,100.00 *Effective date of value is January 1 of the assessment year(2017) Legal Description at time of Assessment *Land Use WAC 458-53-030 Neighborhood (21AVIEW)ANACORTES VIEW RESIDENTIAL Levy Code 0900 Fire District School District SD103 Exemptions Utilities Acres 0.20 Improvement 1 Attributes Summary Building Style SINGLE FAMILY RESIDENCE Year Built Foundation Above Grade Living Area Exterior Walls Finished Basement Roof Covering *Total Living Area Heat/Air Conditioning Unfinished Basement Fireplace *Total Garage Area Bedrooms Bathrooms For additional information on individual segments see Improvements tab * Land Use codes are for assessment administration purposes and do not represent jurisdictional zoning. Please contact the appropriate planning department in your jurisdiction for land use questions. *Total living area includes above grade living area and finished basement area. * Garage square footage includes all garage areas; basement garages, attached garages, detached garages, etc. Assessment data for improvements is based on exterior inspections. Please contact the Assessor's office if the information does not accurately reflect the interior characteristics. https://www.skagitcounty.net/Search/Property/ 4/9/2018 • '-'-' �G oar oaa, ir' `. _. :_,,,, :� SURVEY of BLOCKS 506 Sc 507 �, UTILITIES EASEMENT "'-• •':>••'"" ::.1'. An easement is hereby reserved for and conveyed to the .,cg. .•' >J • NORTHERN PACIFIC ADDITION TO ANACORTES CITY OF ANACORTES, PUCE! SOUND POWER LIGHT COMPANY, '" ";,: u GTE TELEPHONE COMPANY, CASCADE NATURAL GAS COMPANY, 1 ;==' `" r '` SF(Ar AND TCI CABLE TEt_EVIS/ON COMPANY and their respective .+.'., _'' s::' WITHIN SEC. 23, T.35 N., R. E.y W.M. successors and assigns under and upon the exterior ten V:''C ° (10 feet of front boundary lines adjacent to West Jrd Place rt,• '99 FEB 16 P 4 a6 in which to construct, operate, maintain, repair, replace and enlarge underground pipes, conduits, cab/es and wires all necessary ty '?- or convenient underground or ground mounted appurtenances ;If( : ' •' - —• i - 1 ;i thereto for the purpose of serving this subdivision and other i �` /- ' IA _ONUTAENT kc.,UL.7 it__ _ property with electric, gas, telephone and other utility service, IN CASE �/l together with the right to enter upon the streets, lots, tracts - "" - '`�`- and spa is at all times far the purposes herein stated. ;y /- In addition a 20' storm sewer and sanitary sewer easement 'l-. e.ii- on the East 20' of lot 18 of block 50f, is hereby reserved and ,2L-v =a., 'i; = 7g' /- conveyed to the CITY OF ANACORTES in which to construct, operate \ _.;,,' } 'b / maintain, repair, replace and enlarge the storm and sanitary \ + :_3tJ'`'�F "1:�;:� sewer to service properties to the South together with the '�: y; right to enter upon the lots anti spaces at all times for '' the purposes herein slated Also a 20' drainage easement - ^` . ' �i`' '' on the North 20' of all of block 506 adjacent to the Jrd Street right- \ c-... ,c=;> of-way is hereby reserved and conveyed to the CITY OF ANACORTES in \\1\ �' �+`-' `'�•- _-�•°`.1,.i�;:,,;1.�,ie- [y���Qv��'` which to construct, operate, maintain, repair, replace and enlarge the �s lv /- �- ,-`, storm drainage swale and pond with the right to enter upon \ /- '�'. "\ \ "' �CD `I - (��h -'A\ the lots and space at all times for the purpose herein stated. MONUMENT /- - , \ ;._ :: ..::.0 ::,.;A ; �L ' IN CASE /- \I \I ...;,4:r 4�' ` \ - 1� \ �I\ 111 ii(... il --:-...5;:i;.---- _,.,...:.i.i..11.:„............„\----- , „,„\ \ 1 1\ ‘ ‘s.,....'' "\'''' B - _-�- \ ...,....."''' 1 \ \ „.-. .....„............ 11(16.":'41.--'....' ...''U.--77117. .W. l'...:'-Y:i\'''.... ...,\Tin \\ \ \I `�� / ��.. .r a• •- \ O,O \ \''" ,u'MGM 8Y cm` \ 1 , \ at Q }`o, �`�- �\ ;,ar; BI \ ••• aRDN1AKf 2417-•-'"'- 1\ 1 - P. \ VlJ - .;:,•,:• -'::...::. +7..--> \ \ 1.- -5; :_'y -tr'%_j \ err 1 _.....""'''''''.." ......,.•••••1‘ \ \ ` \, \ 40 + - ''1- \ \.'�,r., t;.,\ tel \ )-.. W*2.. ‘ -A\0 % ...l.--" __.-1.,S ,...,.../ j„IPLo ' 3�� `�'rr,i/ i4ri4ri� D`�. 1 �`,0\l • 1. . \ - ,;•.'" .••• 0,01, ' , 1 \Nd . .. . `�,/I V \:' 17 r'' l��� \tz3 •g•1 3l'DEDICATED 7C1 d7Y-.-'' 1 `,... 1 4/3 \ -- \ \ OP \ 1 ar.. �� ,i r'.,,r�ir� 1 \ \RON BY CRY 0.491NNhCf ,417'- oa \\\ , '',� 1 \% \ 1 \ �L-'1- ,' 699.90 ;%'•' % ;'i:�•{:', gA,.V fq '\6", 5' 449 �i ; <-,' "�J \\ \ a! \\ \\ t 11 �•' � :;;i '' ' !�-`� 1 i 1�`9' \�\ \ ,'.`1 r ` y--\" r `; v� O -� • .-._.-•4'\\' \8\- 1 U \ \ 1 ,-- v /// // ') , + •W {., -,,.; ', � \ \ ,\, -.AA \ ,,- ,..-- , -i O \ S. .rfi f 1\ \ O, 1\ �95t/- fill''''''''f/ id \9 \V1.'. /4 2 _, 3'�D�-46 •• 1'k gg'z •\ • \ \ \ _` • •t' \\\ `4° `\1 ��0i-3�' 'Ei�^\ \,�' get \ 1 1A�' �' iJs�6 0�t4. , 5 ' 3 1:-:_:, :'S'' .. - 11\ 1 \' /Y'�4' - `\ 0\g� • �; NQ,+ Y` L'- /t 4.9' \1, Al tt 1 a ' ��; ice,_ L'' - \:„.......... ' \ 0 \ ,; i,�! .�74.'9 1 QC 'i \• \ ,0 9 '• r4:-- _:_. _ LEGAL DESCRIPTION ir 3 % E1 " ... PARCEL A: All of block 50(i NORTHERN PACIFIC ADD/AON TO r- ,� '' 1q.'9 \ •\ \ \5 \ 619• S4/, _- MWCORTES, according to the plat thereof recorded in volume 2 of Plats, pages 9 through 11, records of Skagit County, Washington; - \'S \ \\ --,d)<{---"' ;\1 \e`tcl p- \ \ '1.� \g ' - \--� �_' .;i�'�;:_.•.:;5£=,rr- :.i5'�s`•'- M^' O EXCEPT the South J4 loeh, '}•" " M T,O_GEIHER WITH the South 34 feet of West Jrd Street vacated '\ \ `\ �- \\ 44 \ /�y {-'�- h{�\ 1 """.•,>:__"'_ i�;.J�` ;,.::'``'Junder Ordinance No, 2417 as would attach by the operation of law, 11 .� 1 L.�-' y 'J ''�--\ \ yDC \ \ 1 \ - ,o:" ,--';;' PARCEL B; All of Block 507, NORTHERN PACIFIC ADDITION TO \ - - \ B 1 \ '''"_-'' _* tNACORTE_S according to the plat thereof recorded in Volume 2 \ -'~'-/MONUMENT ��--�� 1 \ \ 1 ';-',::,,, ? '='c` :, of,plats"pages' :,.through 11, records of Skagit County, Washington; �, \ �— IN CASE \ \ \ • \ tttr r,i.;- `�N . \\\ - '-'�- ~,1\ \ \ \• 1 \ :,r ' ,,,_:f.,;.•:+a�ifGitt�'in_ §rt Couny, Washington. 4 �� 3 \ 1 NOTES ,M1" GRAPHIC SCALE 1. • - Indicates new re bar r .„ - \, • r b r with yellow cop inscribed DA JOLLY 7597. '' `7.;.: - 100 0 50 100 200 400 ■ - Indicates new cased concrete monument with brass top. "" -_+ !`'_,_ <,,cJ• >arr ,' t _ • t•.•'Ot,�� [J - Indicates Existing monument i��'°J':i � -°_._ ��+'�': c� •=�-`-`: c 3. Basis of Bearing: Record of survey filed in volume 7 SUR 'Y�R�..r >, •�"'`r� - ;;i, of surve s a e 104 g' y 3" ��Ntyr 03 •• ( TN FEET ) y p g Records of Ska !t Count , WA. D. A. JOLLY P.E.;'=P1; :a,• r ,.,s�'aif ® 1 inch = 100 n 4, Instrumentation: Pentox PTS V5 Total Station. P.O. BOX 218 su"` ='- f ,;° ' ,,.;.�;;, 5, Survey Procedure: Field traverse double measured,. Coupeville, WA 98239 (36Q),:°fr78-411,68 11! , ,�E,�Cj r 1 OF 1 SURVEYOR'S CERTIFICATE '� AUDITOR'S CERTIFICATE ,.. BOUNDARY SURVEY For BraYo:';fu.rk�sVich ark ice, isss tr �> File for record this -- day of ___ ...-_---____. and Poo_•_;!;.0-�f vich •'' This map correctly represents a survey made by me or + 19 _ at �; _e._ M, SURVEY IN BLOCKS 506 & 507 " ,::: •t5WN ,Q•Yr`":,, Dll'kt;, under my direction in conformance with the requirements ` in Volume _ __ of Plots onsr" of the Survey Recording Act at the request of: AS1. t' -- page — �-- "NORTHERN PACIFIC ADDITION TO ANACORTES: _'=° CH DA) «= CHECK BY: 0AJ nd Jurkovich Pap Jurkovich ;' of the request of David A. Jolly. WITHIN SEC. 23, T.35 N,, R.1 E., W.M. -�,sf.:, ;'•' • p..rv.LS Q, , �_ ';,-; `,y Auditors File No,4g02;1 pQaa�1 ___s Skagit County WA CITY OF ANACORTES, SKAGIT COUNTY WASHINTON D. A. Jolly 'C _ I ( SCALE: t"=100' p� ' _ u,t, _ _ _ HERRIGSTAD ENGINEERING Certificate No, 7597 ®liI• /r7 D3-o�-ov�-7 _ .. . ! Skagit unty Auditor t0 ut 3001 R Avenue, Suite 210 B, Anacortes, .WA. 98221 (360) 299-8804 J08 NO.: 107 EX. GB #1736 TYPE' E6 Y ��18 RIM ELEV,=127,75' R' li CITY OF ANAGIT OD PLACE ni EX, SIDEWALK - _ CI :0: i _ - EX, 12 C IDE '-� 20' SETBACK 140,6' L____I E X.,- 12" -. SD 001 30_ r _ _ r MAX, PEAK ELEV. tzi `_..._ � 72,8'.+ 35' =187,8' Pa, ,NI. J , , ,c 150 L_ ., ff---------- v165,2' v.) :i.w..1___. iii_ 164.0' v). O 20' SET ACK AVERAGE ORIGINAL GRAPHIC SCALE GRADE .ELEV, 1 . 10 0 10 20 40 140,6'+141,5'+164,0'+165,2'= - _ IN r2NiT- 611,3'/4=152,8' inch =20 ft. �.- HERRIGSTAD ENGINEERING & SURVEYING Average Original Grades For Proposed House 4320 WHISTLE LAKE ROAD 3001 W 3rd Street, Anacortes ANACORTESES, WA 98221 299-8804 Completed May 14, 2018 • '-'-' �G oar oaa, ir' `. _. :_,,,, :� SURVEY of BLOCKS 506 Sc 507 �, UTILITIES EASEMENT "'-• •':>••'"" ::.1'. An easement is hereby reserved for and conveyed to the .,cg. .•' >J • NORTHERN PACIFIC ADDITION TO ANACORTES CITY OF ANACORTES, PUCE! SOUND POWER LIGHT COMPANY, '" ";,: u GTE TELEPHONE COMPANY, CASCADE NATURAL GAS COMPANY, 1 ;==' `" r '` SF(Ar AND TCI CABLE TEt_EVIS/ON COMPANY and their respective .+.'., _'' s::' WITHIN SEC. 23, T.35 N., R. E.y W.M. successors and assigns under and upon the exterior ten V:''C ° (10 feet of front boundary lines adjacent to West Jrd Place rt,• '99 FEB 16 P 4 a6 in which to construct, operate, maintain, repair, replace and enlarge underground pipes, conduits, cab/es and wires all necessary ty '?- or convenient underground or ground mounted appurtenances ;If( : ' •' - —• i - 1 ;i thereto for the purpose of serving this subdivision and other i �` /- ' IA _ONUTAENT kc.,UL.7 it__ _ property with electric, gas, telephone and other utility service, IN CASE �/l together with the right to enter upon the streets, lots, tracts - "" - '`�`- and spa is at all times far the purposes herein stated. ;y /- In addition a 20' storm sewer and sanitary sewer easement 'l-. e.ii- on the East 20' of lot 18 of block 50f, is hereby reserved and ,2L-v =a., 'i; = 7g' /- conveyed to the CITY OF ANACORTES in which to construct, operate \ _.;,,' } 'b / maintain, repair, replace and enlarge the storm and sanitary \ + :_3tJ'`'�F "1:�;:� sewer to service properties to the South together with the '�: y; right to enter upon the lots anti spaces at all times for '' the purposes herein slated Also a 20' drainage easement - ^` . ' �i`' '' on the North 20' of all of block 506 adjacent to the Jrd Street right- \ c-... ,c=;> of-way is hereby reserved and conveyed to the CITY OF ANACORTES in \\1\ �' �+`-' `'�•- _-�•°`.1,.i�;:,,;1.�,ie- [y���Qv��'` which to construct, operate, maintain, repair, replace and enlarge the �s lv /- �- ,-`, storm drainage swale and pond with the right to enter upon \ /- '�'. "\ \ "' �CD `I - (��h -'A\ the lots and space at all times for the purpose herein stated. MONUMENT /- - , \ ;._ :: ..::.0 ::,.;A ; �L ' IN CASE /- \I \I ...;,4:r 4�' ` \ - 1� \ �I\ 111 ii(... il --:-...5;:i;.---- _,.,...:.i.i..11.:„............„\----- , „,„\ \ 1 1\ ‘ ‘s.,....'' "\'''' B - _-�- \ ...,....."''' 1 \ \ „.-. .....„............ 11(16.":'41.--'....' ...''U.--77117. .W. l'...:'-Y:i\'''.... ...,\Tin \\ \ \I `�� / ��.. .r a• •- \ O,O \ \''" ,u'MGM 8Y cm` \ 1 , \ at Q }`o, �`�- �\ ;,ar; BI \ ••• aRDN1AKf 2417-•-'"'- 1\ 1 - P. \ VlJ - .;:,•,:• -'::...::. +7..--> \ \ 1.- -5; :_'y -tr'%_j \ err 1 _.....""'''''''.." ......,.•••••1‘ \ \ ` \, \ 40 + - ''1- \ \.'�,r., t;.,\ tel \ )-.. W*2.. ‘ -A\0 % ...l.--" __.-1.,S ,...,.../ j„IPLo ' 3�� `�'rr,i/ i4ri4ri� D`�. 1 �`,0\l • 1. . \ - ,;•.'" .••• 0,01, ' , 1 \Nd . .. . `�,/I V \:' 17 r'' l��� \tz3 •g•1 3l'DEDICATED 7C1 d7Y-.-'' 1 `,... 1 4/3 \ -- \ \ OP \ 1 ar.. �� ,i r'.,,r�ir� 1 \ \RON BY CRY 0.491NNhCf ,417'- oa \\\ , '',� 1 \% \ 1 \ �L-'1- ,' 699.90 ;%'•' % ;'i:�•{:', gA,.V fq '\6", 5' 449 �i ; <-,' "�J \\ \ a! \\ \\ t 11 �•' � :;;i '' ' !�-`� 1 i 1�`9' \�\ \ ,'.`1 r ` y--\" r `; v� O -� • .-._.-•4'\\' \8\- 1 U \ \ 1 ,-- v /// // ') , + •W {., -,,.; ', � \ \ ,\, -.AA \ ,,- ,..-- , -i O \ S. .rfi f 1\ \ O, 1\ �95t/- fill''''''''f/ id \9 \V1.'. /4 2 _, 3'�D�-46 •• 1'k gg'z •\ • \ \ \ _` • •t' \\\ `4° `\1 ��0i-3�' 'Ei�^\ \,�' get \ 1 1A�' �' iJs�6 0�t4. , 5 ' 3 1:-:_:, :'S'' .. - 11\ 1 \' /Y'�4' - `\ 0\g� • �; NQ,+ Y` L'- /t 4.9' \1, Al tt 1 a ' ��; ice,_ L'' - \:„.......... ' \ 0 \ ,; i,�! .�74.'9 1 QC 'i \• \ ,0 9 '• r4:-- _:_. _ LEGAL DESCRIPTION ir 3 % E1 " ... PARCEL A: All of block 50(i NORTHERN PACIFIC ADD/AON TO r- ,� '' 1q.'9 \ •\ \ \5 \ 619• S4/, _- MWCORTES, according to the plat thereof recorded in volume 2 of Plats, pages 9 through 11, records of Skagit County, Washington; - \'S \ \\ --,d)<{---"' ;\1 \e`tcl p- \ \ '1.� \g ' - \--� �_' .;i�'�;:_.•.:;5£=,rr- :.i5'�s`•'- M^' O EXCEPT the South J4 loeh, '}•" " M T,O_GEIHER WITH the South 34 feet of West Jrd Street vacated '\ \ `\ �- \\ 44 \ /�y {-'�- h{�\ 1 """.•,>:__"'_ i�;.J�` ;,.::'``'Junder Ordinance No, 2417 as would attach by the operation of law, 11 .� 1 L.�-' y 'J ''�--\ \ yDC \ \ 1 \ - ,o:" ,--';;' PARCEL B; All of Block 507, NORTHERN PACIFIC ADDITION TO \ - - \ B 1 \ '''"_-'' _* tNACORTE_S according to the plat thereof recorded in Volume 2 \ -'~'-/MONUMENT ��--�� 1 \ \ 1 ';-',::,,, ? '='c` :, of,plats"pages' :,.through 11, records of Skagit County, Washington; �, \ �— IN CASE \ \ \ • \ tttr r,i.;- `�N . \\\ - '-'�- ~,1\ \ \ \• 1 \ :,r ' ,,,_:f.,;.•:+a�ifGitt�'in_ §rt Couny, Washington. 4 �� 3 \ 1 NOTES ,M1" GRAPHIC SCALE 1. • - Indicates new re bar r .„ - \, • r b r with yellow cop inscribed DA JOLLY 7597. '' `7.;.: - 100 0 50 100 200 400 ■ - Indicates new cased concrete monument with brass top. "" -_+ !`'_,_ <,,cJ• >arr ,' t _ • t•.•'Ot,�� [J - Indicates Existing monument i��'°J':i � -°_._ ��+'�': c� •=�-`-`: c 3. Basis of Bearing: Record of survey filed in volume 7 SUR 'Y�R�..r >, •�"'`r� - ;;i, of surve s a e 104 g' y 3" ��Ntyr 03 •• ( TN FEET ) y p g Records of Ska !t Count , WA. D. A. JOLLY P.E.;'=P1; :a,• r ,.,s�'aif ® 1 inch = 100 n 4, Instrumentation: Pentox PTS V5 Total Station. P.O. BOX 218 su"` ='- f ,;' ' ,,.;.�;;, 5, Survey Procedure: Field traverse double measured,. Coupeville, WA 98239 (36Q),:°fr78-411,68 11! , ,�E,�Cj r 1 OF 1 SURVEYOR'S CERTIFICATE '� AUDITOR'S CERTIFICATE ,.. BOUNDARY SURVEY For BraYo:';fu.rk�sVich ark ice, isss tr �> File for record this -- day of ___ ...-_---____. and Poo_•_;!;.0-�f vich •'' This map correctly represents a survey made by me or + 19 _ at �; _e._ M, SURVEY IN BLOCKS 506 & 507 " ,::: •t5WN ,Q•Yr`":,, Dll'kt;, under my direction in conformance with the requirements ` in Volume _ __ of Plots onsr" of the Survey Recording Act at the request of: AS1. t' -- page — �-- "NORTHERN PACIFIC ADDITION TO ANACORTES: _'=° CH DA) «= CHECK BY: 0AJ nd Jurkovich Pap Jurkovich ;' of the request of David A. Jolly. WITHIN SEC. 23, T.35 N,, R.1 E., W.M. -�,sf.:, ;'•' • p..rv.LS Q, , �_ ';,-; `,y Auditors File No,4g02;1 pQaa�1 ___s Skagit County WA CITY OF ANACORTES, SKAGIT COUNTY WASHINTON D. A. Jolly 'C _ I ( SCALE: t"=100' p� ' _ u,t, _ _ _ HERRIGSTAD ENGINEERING Certificate No, 7597 ®liI• /r7 D3-o�-ov�-7 _ .. . ! Skagit unty Auditor t0 ut 3001 R Avenue, Suite 210 B, Anacortes, .WA. 98221 (360) 299-8804 J08 NO.: 107 APR 2 6 2°18 . C Planning, Community, & Economic Development Department PO Box 547, Anacortes, WA 98221 PH: 360.299.1984 \ ��' 13 Elements of SWPPPY141111 (Construction Stormwater Pollution Prevention Plan) Please check off boxes to show that each element has been read and understood. Provide details where applicable and if certain aspects are unnecessary or exempt, clearly justify. Details of the 13 Elements and the correlating BMPs are listed on Pg. 236 of the 2014 Stormwater Management Manual for Western Washington (SWMMWW). A link is provided on the City of Anacortes website, under Planning, Community,& Economic Development Department,as well as under Stormwater on the Engineering Division of Public Work's page. / ° Owner Name: /4 4/ �.Gf G , 11'L/ S'T c:f.7 q.,.,,C O/ .rcf6— Site Address: jreb/ Prepared By: ,�<?"4/1 The Stormwater checklist or building permit determined that: ❑ The 13 elements must be addressed for ❑ These elements must be addressed for construction activity adding under 2,000 construction activity adding 2,000 sq.ft. sq.ft. of hard surface area. or more of hard surface area. This means that an attached narrative and site plan are required with this document. Under each element,explain the best management practices (BMPs) used or justify reasoning for those that will not be used. If needed, please attach a narrative to further explain plans or justification. ELEMENT 1: Preserve Vegetation/Mark Clearing Limits ❑ Before beginning land disturbing activities, including clearing and grading, clearly mark all clearing limits,sensitive areas and their buffers, and trees that are to be preserved within the construction area. ❑ Retain the duff layer, native top soil,and natural vegetation in an undisturbed state to the maximum degree practical. 1 / . i 43 G'li Page 1 of 8 March,2017 ELEMENT 2: Establish Construction Access / ❑ Limit construction vehicle access and exit to one route, if possible. a ❑ Stabilize access points with a pad of quarry spalls, crushed rock,or other equivalent BMPs,to minimize tracking onto roads. y ❑ Locate wheel wash or tire baths on site, if the stabilized construction entrance is not effective in preventing tracking sediment onto roads. y ❑ If sediment is tracked off site,clean the affected roadway thoroughly at the end of each day,or more frequently as necessary (ex:wet weather). Remove sediment from roads by shoveling, sweeping,or pick up and transport the sediment to a controlled sediment disposal area. s ❑ Conduct street washing only after sediment is removed in accordance with the above bullet. (o ❑ Control street wash wastewater by pumping back on site or otherwise preventing it from discharging into systems tributary to waters of the State. s) ©r✓E' orl//t e€ Z/' Lf73 la 4 r� 5��/�S c;;.s ,o�.�6:34-47 r.g""/ �j /v' ; P�u1�ec Arc, .,4i //.// d pr vr' .5j2' 49 i/i'/r G'/e9,1 Gv.' .;,/ /h e,/' „` . 5-) t ;!/ et),a•,7,/ 6) U. // v/o L 1.�e `e 5' !/ire ELEMENT 3: Control Flow Rates ❑ Protect properties and waterways downstream of development sites from erosion and the associated discharge of turbid waters due to increases in the velocity and peak volumetric flow rate of stormwater runoff from the project site. ❑ Where necessary to comply with the bullet above,construct stormwater retention or detention facilities as one of the first steps in grading.Assure that detention facilities function properly before constructing site improvement(e.g. impervious surfaces). ❑ If permanent infiltration ponds are used for flow control during construction, protect these facilities from siltation during the construction phase. • /) Gi/4 w(1/ de 4/ Oaf rt/b 7Te -e'sy G,v c-6/.'l/ ,b. re,e 6.� 3, /,(/D Jill Qie_ e..1 Q ELEMENT 4: Install Sediment Controls ❑ Design, install,and maintain effective erosion controls and sediment controls to minimize the discharge of pollutants. ❑ Construct sediment control BMPs(sediment ponds,traps,filters,etc.)as one of the first steps in grading.These BMPs shall be functional before other land disturbing activities take place. Li Minimize sediment discharges from the site.The design,installation and maintenance of erosion and sediment controls must address factors such as the amount,frequency, intensity and duration of precipitation,the nature of resulting stormwater runoff, and soil characteristics, including the range of soil particle sizes expected to be present on the site. ❑ Direct stormwater runoff from disturbed areas through a sediment pond or other appropriate sediment removal BMP, before the runoff leaves a construction site or before discharge to an Page 2 of 8 March, 2017 infiltration facility. Runoff from fully stabilized areas may be discharged without a sediment removal BMP, but must meet the flow control performance standard in Element#3, bullet#1. ❑ Locate BMPs intended to trap sediment on-site in a manner to avoid interference with the movement of juvenile salmonids attempting to enter off-channel areas or drainages. ❑ Provide and maintain natural buffers around surface waters,direct stormwater to vegetated areas to increase sediment removal, and maximize stormwater infiltration. ❑ Where feasible,design outlet structures that withdraw impounded stormwater from the surface to avoid discharging sediment that is still suspended lower in the water column. met e ciS /rcic%z ae el-f4 /VIill 5 , z) /c,// /e , I / Trot .s4. �� .ems�� cj�; /, vv. // . e- /p/�4,sW G-() p et -�.( / �J •�di� ��a;O'er etz i/ 6� -� b 10/4„,-AC, s j ,vim,. -7)4,) "°,4 wfl ELEMENT 5: Stabilize Soils ❑ Stabilize exposed and unworked soils by application of effective BMPs that prevent erosion. Applicable BMPs include, but are not limited to:temporary and permanent seeding,sodding, mulching, plastic covering, erosion control fabrics and matting,soil application of polyacrylamide(PAM),the early application of gravel base early on areas to be paved,and dust control. ❑ Control stormwater volume and velocity within the site to minimize soil erosion. ❑ Control stormwater discharges, including both peak flow rates and total stormwater volume,to minimize erosion at outlets and to minimize downstream channel and stream bank erosion. ❑ Soils must not remain exposed and unworked for more than the time periods set forth below to prevent erosion. o During the dry season (May 1—Sept 30): 7 days o During the wet season (Oct 1—Apr 30): 2 days ❑ Stabilize soils at the end of the shift before a holiday or weekend if needed based on the weather forecast. ❑ Stabilize soil stockpiles from erosion, protect with sediment trapping measures, and where possible, be located away from storm drain inlets,waterways, and drainage channels. ❑ Minimize the amount of soil exposed during construction activity. ❑ Minimize the disturbance of steep slopes. ❑ Minimize soil compaction and, unless infeasible, preserve topsoil. Afitiq ai le w,/l co cie,cei 4 fila} �-r c ,6e�0�e q ✓�G�.L z� d Y//�3 g .�u tiara .et�/f,� omi,( /f �/2- co-✓��i e .3) /✓4 y/ Gl// // Pe�D/ f1 d p/ice 5fo�. /s 4'J.ir4;,./ z- T d#4JS s) w 7/ Et, /, � '4S p le 7/..jv p.e4 be"?ch Q� 21') Un`l� place c�w-et �v o��� � wdev se�oer/i�//ate o%c. ELEMENT 6: Protect Slopes 1i ❑ Design and construct cut-and-fill slopes in a manner to minimize erosion. Applicable practices include, but are not limited to, reducing continuous length of slope with terracing and diversions, reducing slope steepness,and roughening slope surfaces (Ex:track walking). Page 3 of 8 March,2017 ❑ Divert off-site stormwater(run-on) or ground water away from slopes and disturbed areas with interceptor dikes, pipes,and/or swales.Off-site stormwater should be managed separately from stormwater generated on the site. At the top of slopes, collect drainage in pipe slop drains or protected channels to prevent erosion. o *Temporary pipe slope drains must handle the peak volumetric flow rate calculated using a 10-minute time step from a Type 1A, 10-year,24-hour frequency storm for the developed condition.Alternatively,the 10-year, 1-hour flow rate predicted/indicated by an approved continuous runoff model, increased by a factor of 1.6,may be used.The hydrologic analysis must use the existing land cover condition for predicting flow rates from tributary areas outside the project limits. For tributary areas on the project site, the analysis must use the temporary or permanent project land cover condition, whichever will produce the highest flow rates. If using the Western Washington Hydrology Model (WWHM)to predict flows, bare soil areas should be modeled as "landscaped"area. o Where 15-minute time steps are available in an approved continuous runoff model,they may be used directly without a correction factor. ❑ Place excavated material on the uphill side of trenches, consistent with safety and space considerations. 5�❑ Place check dams at regular intervals within constructed channels that are cut down a slope. �l ❑ Consider soil types and its potential for erosion. 7// ❑ Stabilize soils on slopes, as specified in Element 5. gy ❑ BMP combinations are the most effective method of protecting slopes with disturbed soils. Ex: Use both mulching and straw erosion control blankets. S/A -ix 5 �� e ei ta./i Vi f vr�i,6/,2,,, z/ ;. 9„, %� f (4'c7ceu"'Cr/� ie-04-4 j 7/ G/ 1/ �dn pl 5") ,vg — /s. ELEMENT 7: Protect Drain Inlets /) ❑ Protect all storm drain inlets made operable during construction so that stormwater runoff does not enter the conveyance system without first being filtered or treated to remove sediment. ❑ Clean or remove and replace inlet protection devices when sediment has filled one-third of the available storage (unless a different standard is specified by the product manufacturer). 3/ ❑ Where possible, protect all existing storm drain inlets so that stormwater runoff does not enter the conveyance system without first being filtered or treated to remove sediment. .,-// ❑ Keep all approach roads clean. Do not allow sediment and street wash water to enter storm drains without prior and adequate treatment unless treatment is provided before the storm drain discharges to waters of the State. ❑ Inlets should be inspected weekly at a minimum and daily during storm events. �1 Ltril /-`-✓c //t/ , , zi wl`/I cf��L� "Ole e/J bade( 10 r¢.� ho Vie. °-/) /3rvo e Page 4 of 8 March,2017 ELEMENT 8:Stabilize Channels and Outlets II Design, construct, and stabilize all on-site conveyance channels to prevent erosion from the following expected peak flows: o *Channels must handle same peak volumetric flow rate as temporary pipe slope drains listed in Element 6,above. ❑ Provide stabilization, including armoring material,adequate to prevent erosion of outlets, adjacent streambanks,slopes, and downstream reaches at the outlets of all conveyance systems. ❑ The best method for stabilizing channels is to completely line the channel with a blanket product first,then add check dams as necessary to function as an anchor and to slow the flow of water. l) ) /6 — w!Mfg 3l A 4 ELEMENT 9: Control Pollutants I/ ❑ Design, install, implement, and maintain effective pollution prevention measures to minimize the discharge of pollutants. 74 ❑ Handle and dispose of all pollutants, including waste materials and demolition debris that occur on-site in a manner that does not cause contamination of stormwater. . 4 ❑ Provide cover, containment,and protection from vandalism for all chemicals, liquid products, petroleum products,and other materials that have the potential to pose a threat to human health or the environment. On-site fueling tanks must include secondary containment. Secondary containment means placing tanks or containers within an impervious structure capable of containing 110%of the volume contained in the largest tank within the containment structure. Double-walled tanks do not require additional secondary containment. 4 ❑ Conduct maintenance,fueling, and repair of heavy equipment and vehicles using spill prevention and control measures. Clean contaminated surfaces immediately following any spill incident. 67 ❑ Discharge wheel wash or tire bath wastewater to a separate on-site treatment system that prevents discharge to surface water,such as closed-loop recirculation or upland land application,or to the sanitary sewer,with local sewer district approval. Wheel wash or tire bath wastewater should not include wastewater from concrete washout areas. 61 ❑ Apply fertilizers and pesticides in a manner and at application rates that will not result in loss of chemical to stormwater runoff. Follow manufacturers' label requirements for application rates and procedures. 7/ ❑ Use BMPs to prevent contamination of stormwater runoff by pH-modifying sources.The sources for this contamination include, but are not limited to: bulk cement, cement kiln dust,fly ash, new concrete washing and curing waters,waste streams generated from concrete grinding and sawing, exposed aggregate processes, dewatering concrete vaults,concrete pumping,and mixer washout waters.Adjust the pH of stormwater if necessary to prevent violations of the water quality standards. Page 5 of 8 March, 2017 8/ ❑ Assure that washout of concrete trucks is performed off-site or in designated concrete washout areas only. Do not wash out concrete trucks onto the ground, or into storm drains,open ditches, streets,or streams. Do not dump excess concrete on site, except in designated concrete washout areas.Concrete spillage or concrete discharge to surface waters of the State is prohibited. Do not use upland land applications for discharging wastewater from concrete washout areas. a/❑ Obtain written approval from Ecology and provide to the City before using chemical treatment other than CO2 or dry ice to adjust pH. to/❑ Woody debris may be chopped and spread on site. it/ 0 Conduct oil changes,hydraulic system drain down,solvent and de-greasing cleaning operations, fuel tank drain down and removal,and other activities which may result in discharge or spillage of pollutants to the ground or into stormwater runoff using spill prevention measures,such as drip pans. /y/C7 Clean contaminated surfaces immediately following any discharge or spill incident. Emergency 11 repairs may be performed on-site using temporary plastic placed beneath and, if raining, over the vehicle. f) A/D i flu/. pKe-scoai 4/2 /1i A/ ��/ /e/ �/ (.e47 dvy .5;0.%/1 "ewe ,MiiJd dispoie d Pf3;. f 74/f- /sl nM 7/N4 S/ No e:epvGve le_ 0/414 /o/ /VFW ill 1V efe` / o=v/L, /2/A/4- ELEMENT 10: Control De-Watering ❑ Discharge foundation,vault,and trench dewatering water,which have characteristics similar to stormwater runoff at the site, into a controlled conveyance system before discharge to a sediment trap or sediment pond. 4 0 Discharge clean, non-turbid de-watering water,such as well-point ground water,to systems tributary to,or directly into surface waters of the State, as specified in Element 8, provided the de-watering flow does not cause erosion or flooding of receiving waters or interfere with the operation of the system. Do not route clean dewatering water through stormwater sediment ponds. Note that"surface waters of the State" may exist on a construction site as well as off site;for example,a creek running through a site. 7j ❑ Handle highly turbid or contaminated dewatering water separately from stormwater. i ❑ Other treatment or disposal options may include: 1. Infiltration 2. Transport off-site in a vehicle,such as a vacuum flush truck,for legal disposal in a manner that does not pollute state waters. 3. Ecology-approved on-site chemical treatment or other suitable treatment technologies. 4. Sanitary or combined sewer discharge with local sewer district approval, if there is no other option. 5. Use of a sedimentation bag with outfall to a ditch or swale for small volumes of localized dewatering. �' ❑ Construction equipment operation, clamshell digging,concrete tremie pour,or work inside a cofferdam can create highly turbid or contaminated dewatering water. bl ❑ Discharging sediment-laden (muddy)water into waters of the State likely constitutes a violation Page 6 of 8 March, 2017 of water quality standards for turbidity.The easiest way to avoid discharging muddy water is I / through infiltration and preserving vegetation. /' f /� /f 0 G6-iv,. p,e cc. .t-y�w4-7-74 / V -c /�S 41 ifs L� i i�/�7'C e- �z9CC .4 e �rt / > - a l G*fe,¢c t J/�-' u s,"6 c.e G(J1F'T � �'E' e e.-r.J/- 7 b y za_� `t// S//Vie ' it/O G+/�>�G ,�ir�. e iQ �.✓� 5/iF ELEMENT 11: Maintain BMPs b) ❑ Maintain and repair all temporary and permanent erosion and sediment control BMPs as needed to assure continued performance of their intended function in accordance with BMP specifications. ' ❑ Remove all temporary erosion and sediment control BMPs within 30 days after achieving final site stabilization or after the temporary BMPs are no longer needed.Some temporary erosion and sediment control BMPs are bio-degradable and designed to remain in place following construction such as compost socks. ❑ Provide protection to all BM Ps installed for the permanent control of stormwater from sediment and compaction.All BMPs that are to remain in place following completion of construction shall be examined and placed in full operating conditions. If sediment enters the BMPs during construction, it shall be removed and the facility shall be returned to the conditions specified in the construction documents. /-/J ❑ Remove or stabilize trapped sediment on site. Permanently stabilize disturbed soil resulting from removal of BMPs or vegetation. kAtai, Pi/e c' Opq// 0/4 .5/ / �� 5;/L ,rv'c t r✓r 7/ /e t 1") p /4 ce c_c Crile.34J/f 5/ (4..f _/3 mp !/ b--c 4/4,14; n/e-Ap(` 4/2 ws'L/ 0D6'Y+�c�c/r 64 Si !-z . 45 .5cci•f�l hl 'by ELEMENT 12: Manage the Project—Projects subject to Minimum Requirements 1-9 must have a Certified Erosion and Sediment Control Lead (CESCL) for site inspections. Projects subject to Minimum Requirements 1-5 do not require the inspector to be certified. By the initiation of construction,the SWPPP must identify the CESCL or inspector, who shall be present on-site or on-call at all times. Management details starting on Pg. 250. 11 ❑ Phase development projects to the maximum degree practicable and take into account seasonal work limits to prevent soil erosion and prevent transporting sediment from the site during construction. ❑ Inspection and monitoring—Inspect, maintain,and repair all BMPs as needed to assure continued performance of their intended function. ❑ Maintain,update, and implement the SWPPP. ❑ Clearing and grading activities for developments shall be permitted only if conducted using an approved site development plan(e.g.,subdivision approval). • From Oct 1 through Apr 30,clearing,grading,and other soil disturbing activities is permitted only if shown that the site operator will prevent silt-laden runoff from leaving the site through a combination of the following: Page 7 of 8 • March, 2017 1. Site conditions including existing vegetative coverage,slope,soil type,and proximity to receiving waters. 2. Limit activities and the extent of disturbed areas. 3. Proposed erosion and sediment control measures. Weather conditions can influence the seasonal limitation on site disturbance.The City of Anacortes has the authority to take enforcement action per AMC 19.76 Stormwater. Li The following activities are exempt from the seasonal clearing and grading limitations: 1. Routine maintenance and necessary repair of erosion and sediment control BMPs; 2. Routine maintenance of public facilities or existing utility structures that do not expose the soil or result in the removal of the vegetative cover to soil 3. Activities where there is 100% infiltration of surface water runoff within the site in ,,approved and installed erosion and sediment control facilities. ELEMENT 13: Protect Low Impact Development BMPS ❑ If implementing any bioretention facilities or rain gardens,see Pg. 253 for requirements. Applicant Signature Date Page 8 of 8 March, 2017