HomeMy WebLinkAboutPermit File BLD-2021-0259 4310 Cherry Court (4) 41)11,CODE�O
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�cy4 &`oENGINEERING DEPARTMENT
CO °FIELD`� 904 6th Street Anacortes, WA 98221
'' www.anacorteswa.gov
Post Construction Report-12.21.20
Official Use Only: (Information to Inspectors)
Required Storm Water Facility and other related requirements:
Sediment score low, 90.
Project Address: Orchard Avenue/Cherry Lane Submittal Date: 4/5/2021
Parcel Number: P32077 Revision Number:
Permit Number: Reviewer: Rob F.
Acceptance Date (COA): 4/7/2021
FRONT OF REPORT:
Submittal Checklist: (All items listed below are required for a complete submittal)
o Cover Sheet (Preparer to Provide): Project title, Location, Revision dates, Engineer's Stamp
o TAB 1: Minimum Requirement #1 — Preparation of Stormwater Site Plans
o TAB 2: Minimum Requirement #2 — Construction Stormwater Pollution Prevention (SWPP)
o TAB 3: Minimum Requirement#3 — Source Control of Pollution
o TAB 4: Minimum Requirement#4 — Preservation of Natural Drainage Systems and Outfalls
o TAB 5: Minimum Requirement#5 — On-site Stormwater Managements
o TAB 6: Minimum Requirement#6 — Runoff Treatment
o TAB 7: Minimum Requirement #7 — Flow Control
o TAB 8: Minimum Requirement#8 —Wetland Protection
o TAB 9: Minimum Requirement#9 — Operation and Maintenance
o APPENDIX 1 - Survey performed by a Professional Land Surveyor
o APPENDIX 2 - Soils Analysis (Volume 1, Chapter 3.1.1)
o APPENDIX 3 - Model Soil Management Plan for BMP T5.13
o APPENDIX 4 - Determining Construction Site Sediment Damage Potential (Appendix 7)
o APPENDIX 5 - Site Plan with all applicable information (Minimum Size 11x17 — 30 scale)
o APPENDIX 6 - Documented Site Photos (North, South, East and West)
o APPENDIX 7 - Drainage BMP Facility Maintenance Covenant, if applicable. To be recorded prior to the
Temporary Certificate of Occupancy, Certificate of Occupancy or Final Acceptance.
1
o APPENDIX 8—Vicinty Map, Aerial Exhibit, Downstream Exhibit and 2007 City of Anacortes Stormwater
Comprehensive Plan exerpts
o APPENDIX 9— NRCS/SCS soils information
o APPENDIX 10—WWMH Views & WWHM Report
o APPENDIX 11 — 2014 DOE BMP T5.10B, T5.11, T5.12, and T5.13
o APPENDIX 12 - Excerpts from DOE Manual and City of Anacortes Stormwater Comprehensive Plan
Stormwater Management Requirements:
o Refer to the 2012\14 Department of Ecology Manual, as amended in 2014 for further required
information.
o See also, City of Anacortes Municipal Code 19.76 for additional information
o See also, current Engineering Development Standards, Chapter 2- Storm Drainage for additional
information.
Project Description and Summary:
Summary Table
Existing Proposed
Development Type None/Grass/Pasture Single Family
Residential
Number of Lots 1 (Before Short Plat) 1 (Lot 2 of 5 lot
Lot Acreage in SF 135,648 sf(3.1 acres) Short Plat)
Soil Type(s) #18& #19 per NRCS—Bow Gravelly
Loam-Refer to NRCS/SCS info in
Appendix 9 and the Geotechnical
Report within Appendix#2.
Site Sediment Transport Score (High\Low) 100(Of note this number however
includes future house construction on
the 6 lots which will not occur
simontaniously at the same time AL plat
infrastructure so this number actually
is less). Refer to worksheet attached in
Appendix 4
Depth to Ground Water Table (Feet and Inches) Refer to Geotechnical Report prepared
(See completed Soils Analysis (Volume 1, Chapter 3.1.1) by Geotest Services (page 5)provided
at the end of this report in Appendix#2
Infiltration Rate during Rainy Season (Inch\Per Hour) Restrictive layer at varous elevations,
thus infiltration not genearally for the
entire site per Geotechnical Report
(page 16) copy provided at the end of
this report in Appendix#2 however a
small amount of infiltration is
available per the Linda Spicher Soils
testing(Nov 2020) copy is attached.
Two lots(Lot 1 and 6) where the
restrictive soils are at approximately
41"and 54"inches deep future roof
runoff will be mitigated by roof drain
infiltration systems as noted
Impervious Surface (on-site) 1.083 Acres 0.0829 Acres
Impervious Surface (off-site) None None
New and Replaced Hard Surface Total (SF) 1.083-acres of"New"road, home and 0.0829 Acres new
driveway areas, 0-acres "Replaced" roo s and driveway
2
Lot Coverage (Percentage) 18-35%Based on 2014 DOE Rqmt to 17.6%
assume use of hard surface per lot as
noted further within this report.
BMP (Required Minimum Requirement 5) BMP T5.13 Post Construction Soils, BMP T5.13 Post
BMP 5.10E Downspout Dispersion, & Construction Soils,
BMP T5.11 and T5.12 Hard Surface BMP 5.10B
Dispersion, and Downspout/Roof Downspout
Drain infiltration systems on Lots 1 Dispersion
and 6
Water Quality Method (Minimum Requirement 6) Dead Storage Cell to be provided in Dead Storage Cell to
pond bottom be provided in pond
bottom
Water Quantity Method (Minimum Requirement 7) Detention Pond with control structure Downspout
release to existing ditch Dispersion, Detention
Pond with control
structure release to
existing ditch
Existing Site Conditions Summary:
(Additionally, provide information on previous permits, if any, like Grade and Fill, Clear and Grade, topography,
vegetation, drainage, Critical Areas adjacent to the site and how it may affect this project if soils are disturbed,
Soils Type (Included in Soils Analysis Report), Erosion Problem Areas, Construction PhasinglSequence)
See Post Construction Drainage Report, prepared by Ravnik and Associates, dated 12/21/2020. The subject
parcel is approximately 0.3536 acres in size.
The project is located southerly of Cherry Court, approximately 750 feet south of 41st Street. The property is
generally high in the southwest corner, and slopes downhill to the northeast to the low point at the northeast
corner of the site. The project area is currently covered with grass and contains no existing buildings.
Per the DOE Volume 1-Figure 1-2.4.1 Flow Chart for Determining Requirements for New Development, all
DOE Minimum Requirements (MR) #1-5 apply to "new impervious surfaces and converted pervious
surfaces': Existing short grass/pasture areas within the site will remain grass, with the exception of the
areas denoted below, such as the new driveway, walkway to house, and house & shop sites. Grass areas, to
remain grass/landscape area.
Developed Conditions Summary:
Development of this property to construct one new residential structure along with one detached shop and
a hard surface driveway, patio, and walkway,for a total impervius area of 3,611 s.f
All roof areas (2,799 s.f.) are to be dispersed on-site. The proposed walkway and patio (64 s.f) will be
dispersed immediately adjacent to said hard surfaces. The driveway (838 s.f.) runoff will be dispersed on-
site.
Roof downspout dispersion will be used for Lot 2 per BMP T5.10B and with these facilities located so
that they have a minimum 25 feet for the SFR and 25-feet for the paved driveway of down-gradient
dispersion lengths within the lot. Once a minimum of 25 feet or 50-feet of dispersion as designated has been
achieved, these dispersed runoff waters can then be collected and conveyed to the detention system.
3
Drainage Basin (2007 Storm Comp Plan — City website\publicworks\engineering\comprehensive plans):
What Drainage Basin are you in?Anacortes Subbasin F-4. Identify any downstream drainage issues (Storm
Comp Plan: Noted below If so, describe:
Addressed in said drainage report by Ravnik and Associates.
Complete the Applicability Requirements — Flow Chart (Figure 1-2.4.1 Attached, and Figure 1-2.5.1
Attached)
- Refer to attached highlighted Figure I-2.4.1 and Figure I-2.5.1 which are applicable to this
project
4
Start Here
Does the site have 35% Yes Se-e Redevelopment Minimum
or more of existing Requirements and Flow Chart
impervious coverage"' (Figure I-2_4.2}_
No
Does the project convert
V acres or more of vegetation to
Does the project result in lawn or landscaped areas, or
5, 0 square feet, or No convert 2_5 acres or more of
greater, of new plus native vegetaticn to pasture
replaced hard surface
area?
No
Y
/7/s
Yes
Does the project result in 2,LLL
square feet, or greater, of new plus
All Minimum Requirements
irements replaced hard surface area?
apply to the new and replaced
hard surfaces and converted
vegetation areas. Y No
Does the project have land
Mi rii m u m Re.q u i reme rrt5 � disturbing activities cf 0
through A5 apply. to the new 411 1.11 square feet or greaten?
Tres
and replaced hard) surfaces
and the lend disturber
No
Mini nurn Requ irernent 4
applies_
1111 Figure I- _4_+I
Flow Chart for Determining Requ iremen -Fr)
New Development
DEPARTMENT OF FEE+ KIKI June 2a15
ECOLOGY PlgaiQ see h _ecy.wa.gor cap rrr.fi r nor copyright notice Inr1udlrrg permtssl�rrr..
Slate DT Washington ingtan IR iIIttt'rr of liability,and dlsclarner.
5
Doe:s trier-Mel d&harge 10 Flow Contra)Exempt Mien.per Minimum Rahp'remerrtWRI#rF}?
Ve
REQUIRED: Implement 1he td'ohwrhg EMPs No
where fee ile:
t EHPT5.13: Post-Cansh-rr ion Soil OJa':•, w N Ihe
and Depth Does the proJeo1 prget
4. DMP T5.10A,E,or C:Do enspc rrl Fill rigger only M Rs R1- trtjgered
iril'tra ion,Dawnsp url Dispersion #S? (Per Figure 3.2 ar onhy IA R#2J
Syslerns,ar Pei-Waled &- b-aut Figure.3.3 In Appendix I, No additional
Canneotlens 1 ar the 2013-201 El. requirements
F EMP T5.11 or T5.12:Concentrated Flom' WWA Phase II Permit
D'spErNan ar Shee1 Flow Dksperslon &Phase I Permit}.
NOT REQUIRED:Achievement cattle LID No(Me pr ject inggereil
Perrormance Sizindard.Applying the ether 'Yes only MI -#9 i
EMPs In LI&1 R1 or List W2.
Is the Arai Lid Inside the LFGA?
NI the prolect developer ohoxse is meet
Me LID Perrarrnane 5landard? Vtl'i
Is the No
paled'.an a pare
V or5aorrsorlartaer-
REQUIRED:For each Did the prgeol developer .. p.----4:
surra€:e, ranslder the ohoa5E to meet the LID V l`iE
E'MPs In the order Performance ndarb? REQUIRED: Meel the LI:
Iis1eE In List#1 tar that • Perrarrnanoe Slandaid thrDJ:
type of vurrace. Use Vex the use of and 8 Ml F' I Ir. ,-
the first 13MP that's 2014 SWMMW AI e;ocep;'I'
oansldered reasib e. Tel. NO Rain wardens:the use or
Eloretenrtion is a ptable:.
NOT REOL I9.ED.
A,cNevement of the Li; V Ir the pro Ja-ct can't meet the
Clerforrnanoe Standard. REQUIRED: Fa'each LID Performanoa Standard, It
# surface,caisiciEr the EMPs must aa-3k an d be'ranted an
REQUIRED: Meet the LID Parr'ar•nanoe In the rider Isled In List#2 axoept'onNa rlanoe.
Standard through the USE DIM r 8 M Pi.E1 In ice that type of surtaoe. USE
3
the 2C 14 SV,i tl WNW except Mr Rain aril na the lt<sl EMP that Is REQUIRED.:Apply BMP 15.1
(the use or t{oreterrtian ks accepriable}. considered feasible. Past-Canslnh tion SDI Oua''*v
and Depth.
REQUIRED rat Pro}eots Trlhnerincp MIS Rf-9' NOT REQUIRED:
A¢•'Iy EIMP T5.13 Post Donrriruojan Soli Aohlevernert ar the LI C NOT REQUIRED:Applying the
oualtty and Depth. Performance ndard. EIMPs In Lk Ft AL1 or Us-I .
NOT REQUIRED:Appiylnhg the.a M1 Pain List
If1 CI LIrr1 2.
'R,ecommemied oy Eulogy l'Or prtJecis triggering IV_}= • _
1111
Figure 1-25. 1
1
Flow Chart for Determining LID MR 45
Requirements
DEPARTMENT OF Revd June 2015
E Li L ='E.3se sea il .ecy.wa.goiVGD.Dy rAtirrm rat€opvrtgtl1t notice!raging permIE-dens.
Slate ai Wash'ntgtan IIrnItatlon DI liability.and disclaimer.
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 for a Low Impact Development site
design that is intended to compliment the predeveloped conditions of the site.
Existing Condition of the proposed Lot 2 is that the site is vacant, has been stabilized during
the plat construction. The site slopes from southeast to northwest at approximately 5.7%. Lot 2
is bounded to the north by propsed Lot 1, and is bounded to the south by proposed Lot 3. The
site is bounded to the west by Tax Parcels P124004 and P124005 and to the east by Cherry
Court, a proposed public street. A geotechnical investigation has been conducted onsite which
identified an underlying very dense, brown, slightly gravelly silty sand(weathered glacial till)
at 3-4 feet below ground surface which has very limited infiltration capacity at depth. Per the
geotechnical report(page 16), "conventional infiltration of stormwater on this site is not
feasible" Dispersion methods for runoff from roofs and driveways will be promoted as noted
further on within this report. Recently we have had Linda Spicher, a septic designer do more
detailed test pits to check the availability of infiltration for roof drains on Lots 1 and 6. With
the installation of a perimeter interceptor trench drain this type of onsite stormwater control
to mitigate larger house sizes is feasible when accounting for a very small amount of
infiltration in these areas. A underlying infiltration rate of 0.0267 in/hr and 0.0401 in/hr
(coorolating to 4 gallons/sf/day to 6 gallons/sf/day noted on the information provided by Linda
Spicher) has been used. The Geotechnical report for this project indicated a perched
groundwater elevation, which will be somewhat alleviated due to the interceptor driange
system put in place along the south and west property lines of the project area. Refer to both
the septic testing performed by Linda Spicher and the Geotechnical Report prepared by
Geotest for this project located within Appendix 2 at the end of this report.
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.
Refer to the attached Erosion Control Plan and Site Plan Exhibit showing the proposed
location of new walkway, driveway, SFR, shop, stormwater piping, and dispersion areas.
1-3.1.3 Step 3 - Perform Off-site Analysis (at Local Agency's Option): Use additional Sheets, if
necessary,
7
Per the City ofAnacortes Stormwater Comprehensive Plan runoff from this project is
discharged to Ace of Hearts Creek, which conveys runoff northeasterly approximately 0.7-
miles, towards 32nd and MAvenue, then easterly approximately 0.5-miles east to "T"
Avenue. From 32nd and "T"runoff waters are conveyed north in "T"Avenue another 0.2-
miles, before being discharged to Fidallo Bay to the northeast. Refer to the Downstream
Exhibit attached with this report.
1-3.1.4 - Determine Applicable Minimum Requirements
Per the attached Minimum Requirements for new development Figure 2.4.1. Minimum
Requirements #1 through #5 apply to new and converted surfaces proposed with this
short plat. Refer to attached highlighted Figure 2.4.1.
1-3.1.5 Step 5 - Prepare a Permanent Stormwater Control Plan
See Post Construction Drainage Report,prepared by Ravnik and Associates, dated 01/02/2021.
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
See attached Erosion Control Plan and Site Plan, Lot 2, Cherry Court.
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
• Existing Conditions Summary
• Off-site Analysis Report
• Permanent Stormwater Control Plan
• Construction Stormwater Pollution Prevention Plan
• Special Reports and Studies
• Other Permits
• Operation and Maintenance Manual
• Declaration of Covenant for Privately Maintained Flow Control and Treatment Facilities.
(See attached Drainage BMP Maintenance Covenant BMP Agreement)
• Declaration of Covenant for Privately Maintained On-site Stormwater BMP's (See
attached Drainage BMP Maintenance Covenant BMP Agreement)
• Bond Quantities Worksheet, if applicable
8
See the attached Erosion Control Plan and Site Plan, Lot 2, Cherry Court. A Deparment
of Ecology NOI/NPDES permit has been issued for this site under#WAR309407
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.
See attached Erosion Control Plan and Site Plan, Lot 2, Cherry Court.
9
TAB 2 (MINIMUM REQUIREMENT #2)
• 1-2.5.2 Minimum Requirement#2 — Construction Stormwater Pollution Prevention Plan (SWPP)
- All projects are required to complete Minimum Requirement 2.
- Refer to the 13 Elements of the SWPP (See document below, complete and attach)
- See attached Table 4.1.1, Table 4.2.1 and Table
- Provide Engineering Calculations as an attachment for Sediment Ponds\Traps, Diversions,
Waterways and Runoff/Stormwater Detention Calculations.
See attached Erosion Control Plan and Site Plan, Lot 2, Cherry Court.
10
Table 4.1.1 Source Control BMP's by SWPPP Element
Element Element 02 Element 111 Element OS Element SS Element ll11 Element lll2 Element fll3
IMP or Element Name Preserve Estailhh StabItre Protect Control Maintain Manage the Protect Low
1RagantlanlMerk Camtntetlan sag Slopes Pollutants BllPs Project Impact
Clamina Limits kcevv Development
El MP C101: Preserving Natural Vegetation +�
S UP C102:Buller tones Y Y
S UP C103:High 114IbIIly Pleatk or Metal
Fence
IMP C101: StehltandConsiructlan
Entrance f E.dt
BMP C10i:Wheel Wash
BMP C10T:Construction RoedIPtirkint
Area Stablirdion
SUP C120:Temporary cad Permanent
Seeding
IMP C121: Mulching
BMP C122: Nets and Blankets
SLIP C123: Plastic Covering
SUP C124: Sodding oe
SUP C121:Towelling/Composting
SUP C121: Patyeeryienide far Sall Erasion
Protection
BLIP C1X: Surface Roughening
SUP C131:Gradient Terraces
SUP C1d0: Dust Control
BLIP C130: LIalerials On Hand w
SUP C131:Concrete Handling
SUP C11Z: Saacutting and Surkci g
Palution Prevention
SUP C113: Materiel Delvery,Storage and
Cantelnmsnt
BLIP C154:Concrete%%shout Area
BLIP C160:Certified Eraalonand
Sediment Control Lead
S UP CISZ:Scheduing
11
Table 4.2.1 Runoff Conveyance and Treatment BMP's by SWPPP Element
Eleusatale4 Elernene Off Mennen!tril
Element 0 Element 0 Element Kr Element IS Elerrsnk il1R
BMF or EIr rrk Name • OCISI OI irr8tbll Prgboct Ptcrked R�leblfl�e I CComm{ Contra!L1e• ?rala k l ow
FIrnx fahag. +BdFrt'rrxnt Slope* :g Hag e� '21:113om1} • Po lutents tReterl tp IrrQeck
_-_- - Ceeprols tied Dr.ibtis Devekpinen!
IJ One 11110Y eptor Dike aREI&r.!? V
IIP C2#t_ Gran-Lewd{:harurels V
MAP CaIM Channel Dim re '
6AIP C2.0c: YL`ator 9arc 1f 1
B1NR CNA: Pipe Slope Gr91ne +/
HOP C2015: Subsurface Drains V.
—.. .�shill C246; Luwe1 5preeAef +/ .--•— . __
1
!MF C307: Check Gams V. i re- •
r
IBMP C206; 'rraarreuier Ut VIM t ngknxiiF$• I _ 1
!rid Cfnrck Darn)
9MP C Outlet Perked:km V ••
ISMPC22U: 9torrn DRIP!Mel Prote ilon• V
•
BMP fi231: Brush Sft'skr V.
6MP C2-9E: Crave!Filter Berm -
'BMP Sit I ncc V I I
BMP C,794: Veggaialed Strip .1 if .
BMP C .1E Abides V
Brill;`IG231 VoQllrthro nitration I
'OMP d SprdfarwnE'irap V j •
BMPC241: Te ilxwerySe lerltPone! V V
BLIP meat coluttribeikta Siam :
Chekedeal'treatment I
6MP Cal:Conminauon 13tamperakr I '
FItlrallor` I
BMP C2.52;Lila DI-1 Nefuealteatlon!Mu I 1 ,
CO 1
BMPC 53:01COnrd fpE Nigh 0HVitrror .
12
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 Above from 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 Property Owner:Ronald Bayek /Project Owner: LG Anacortes, LLC Contact:Anna Nelson
Site Address:_4310 Cherry Court,Anacortes, WA (P135448)
Prepared By: LGAnacortes, LLC
The Stormwater checklist or building permit determined that:
The 13 elements must be addressed )These elements must be addressed
for construction activity adding under for construction activity adding 2,000
2,000 sq. ft. of hard surface area. sq. ft. or more of hard surface area.
This means that an attached
narrative and site plan are required
with this document.
Under each element, provide the BMP's that will be applicable to your project. Use the attached Tables
provided.
ELEMENT 1: Preserve Vegetation/Mark Clearing Limits
,SS 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.
The clearing limits will be marked by using either BMP C233:Silt Fence, or BMP C103:High Visibility
Plastic or Metal Fence, as shown on the Erosion Control Plan. C233 is to be used along the east, west and
north property lines and the C103 alon'the south property line.
Preservation of the native top soil will be preserved as much as is practical by use of a stock pile as shown on
the Erosion Control Plan. Stock pile location may vary. Stock pile shall be protected as indicated on the
Erosion Control Plan.
ELEMENT 2: Establish Construction Access
* Limit construction vehicle access and exit to one route, if possible.
* Stabilize access points with a pad of quarry spalls, crushed rock, or other equivalent BMPs, to minimize
tracking onto roads.
Locate wheel wash or tire baths on site, if the stabilized construction entrance is not effective in
preventing tracking sediment onto roads.
13
N 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.
N Conduct street washing only after sediment is removed in accordance with the above bullet.
N Control street wash wastewater by pumping back on site or otherwise preventing it from discharging
into systems tributary to waters of the State.
BMP C105 shall be used as the construction access. Only one access point is proposed.
No wheel wash is proposed.
Any track out shall be cleaned daily by shoveling and/or sweeping More frequent cleaning as necessary.
ELEMENT 3: Control Flow Rates
N 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.
N 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.
No flow rate controls are designed for the individual lot. However, a detention pond and wet pond were
constructed with a flow control structure outlet. Erosion control BMPs described in ELEMENT 4, below will
reduce velocity of flows.
Down stream, the existing detention pond shall be used to detain developed runoff and provide time for
sediment to be filtered out prior to being discharged from the site.
ELEMENT 4: Install Sediment Controls
N Design, install, and maintain effective erosion controls and sediment controls to minimize the discharge
of pollutants.
N 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.
N 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.
N 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 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.
N 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.
N Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas to
increase sediment removal, and maximize stormwater infiltration.
N 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.
C233:Silt Fence
14
To be place along the perimeter of the site to protect downstream properties from the transport of coarse sediment,
as well as to mark the clearing limits for the construction crew and to alert the public as to the potential dangers of
the ongoing onsite construction activity.
C105:Stabilized Construction Entrance
To be place in the location of the future driveway to provide a stable and clean point of access for construction
vehicles.
C121:Mulching
To provide immediate temporary protection of exposed soil from erosion, as well as conserving moisture.
C123:Plastic Covering
Primarily used to protect the stock pile from erosion. May be used as a short term cover of small areas of exposed
soil. Not intended for large areas.
C140:Dust Control
The primary source of dust control will be by spraying of the disturbed area with water.
C220:Storm Drain Inlet Protection
Onsite inlet protection will use Block& Gravel Curb Inlet Protection.
Offsite inlet protection will use Catch Basin Filters manufactured for use at construction sites.
C207: Check Dams
Where drainage swale are created to convey stormwater, temporary gravel check dams may be used to reduce
velocity and to dissipate flow energy.
The following BMP improvement(s) are proposed for permanent sediment controls:
C124: Sodding
Sodding is to establish permanent turf for immediate erosion protection.
C125: Top Soiling
Provides a suitable growth medium for final site stabilization with vegetation.
Down stream, the existing detention pond shall be used to detain developed runoff and provide time for
sediment to be filtered out prior to being discharged from the site.
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.
*4 Control stormwater volume and velocity within the site to minimize soil erosion.
N 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
N Stabilize soils at the end of the shift before a holiday or weekend if needed based on the weather
forecast.
N 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. (NA)
N Minimize soil compaction and, unless infeasible, preserve topsoil.
The following are temporary soil stabilization BMPs:
C233:Silt Fence
To be place along the perimeter of the site to protect downstream properties from the transport of coarse sediment,
as well as to mark the clearing limits for the construction crew and to alert the public as to the potential dangers of
the ongoing onsite construction activity.
15
C105:Stabilized Construction Entrance
To be place in the location of the future driveway on Latitude Circle, to provide a stable and clean point of access
for construction vehicles.
C121:Mulching
To provide immediate temporary protection of exposed soil from erosion, as well as conserving moisture.
C123:Plastic Covering
Primarily used to protect the stock pile from erosion. May be used as a short term cover of small areas of exposed
soil. Not intended for large areas.
C140:Dust Control
The primary source of dust control will be controlled spraying of the disturbed area with water.
C220:Storm Drain Inlet Protection
Onsite inlet protection will use Block& Gravel Curb Inlet Protection.
Offsite inlet protection will use Catch Basin Filters manufactured for use at construction sites.
C207: Check Dams
Where drainage swale are created to convey stormwater, temporary gravel check dams may be used to reduce
velocity and to dissipate flow energy.
The following are permanent soil stabilization BMPs:
C124:Sodding
Establishes permanent turf for immediate erosion protection.
C125: Top Soiling
Provides a suitable growth medium for final site stabilization with vegetation.
T5.13:Post-Construction Soil Quality and Depth
Establishes 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.
ELEMENT 6: Protect Slopes
N 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).
N 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.
N 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.
N Place excavated material on the uphill side of trenches, consistent with safety and space
considerations.
N Place check dams at regular intervals within constructed channels that are cut down a slope.
N Consider soil types and its potential for erosion.
N Stabilize soils on slopes, as specified in Element 5.
• BMP combinations are the most effective method of protecting slopes with disturbed soils. Ex: Use both
mulching and straw erosion control blankets.
16
C235:Straw Wattles
Straw Wattles reduce the velocity and can spread the flow of rill and sheet runoff and can capture and retain
sediment.
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).
* 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.
C220:Storm Drain Inlet Protection
Onsite inlet protection will use Block& Gravel Curb Inlet Protection.
Offsite inlet protection will use Catch Basin Filters manufactured for use at construction sites.
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.
C207: Check Dams
Where drainage swale are created to convey stormwater, temporary gavel check dams may be used to reduce
velocity and to dissipate flow enemy.
ELEMENT 9: Control Pollutants
$ 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.
* 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
17
include wastewater from concrete washout areas.
* 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.
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.
* 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.
N Obtain written approval from Ecology and provide to the City before using chemical treatment other
than CO2 or dry ice to adjust pH.
* Woody debris may be chopped and spread on site.
N 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.
N Clean contaminated surfaces immediately following any discharge or spill incident. Emergency repairs
may be performed on-site using temporary plastic placed beneath and, if raining, over the vehicle.
All fuel, lubricants,paint, and/or other hazardous material shall be stored in a lockable, covered storage
container if kept on site.
Note: The contractor is required to have a spill prevention kit on site at all times.
ELEMENT 10: Control De-Watering Not Applicable, no dewaterinz is anticipated
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.
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.
Handle highly turbid or contaminated dewatering water separately from stormwater.
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.
Discharging sediment-laden (muddy) water into waters of the State likely constitutes a violation of water
quality standards for turbidity. The easiest way to avoid discharging muddy water is through infiltration
and preserving vegetation.
18
ELEMENT 11: Maintain BMPs
* 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.
N 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.
N 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.
N Remove or stabilize trapped sediment on site. Permanently stabilize disturbed soil resulting from
removal of BMPs or vegetation.
A trained Certified Erosion and Sedimentation Control Lead(CESCL±will be on the job site. CESCL personnel
are trained in and responsible for the proper maintenance of the erosion control BMPs. The CESCL will work
with the City of Anacortes Inspector to maintain all BMPs.
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.
St 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.
N Inspection and monitoring — Inspect, maintain, and repair all BMPs as needed to assure continued
performance of their intended function.
N Maintain, update, and implement the SWPPP.
N Clearing and grading activities for developments shall be permitted only if conducted using an approved
site development plan (e.g., subdivision approval).
N 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:
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.
N 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.
This SWPPP will be managed by a trained CESCL to assure site is managed properly.
19
Note: The project is required to have a CESCL and will need to maintain a project SWPPP for the duration
of construction
ELEMENT 13: Protect Low Impact Development BMPS
If implementing any bioretention facilities or rain gardens, refer to the applicable BMP sections of the
Manual for requirements.
BMP T5.10B Downspout Dispersion and to be implemented on this site. Compaction of soil in dispersion areas to
be avoided.
Steven Baughn 04/02/2021
Applicant Signature Date
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.
There is no source control pollution anticipated within this Residential Subdivision and thus this
Minimum Requirement is not necessary
20
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.
Will this project disturb the Natural Drainage System or Outfall of the project Site? Yes\No. If
yes, refer to section 1.2.5.4 for Supplemental Guidelines for additional information.
No. This project will not disturb the natural drainage system or outfall from the project site. Runoff
will be detained prior to being released via a control structure at the site's northeast corner, as occurs
today.
21
TAB 5 (MINIMUM REQUIREMENT #5)
• Minimum Requirement#5— On-site Stormwater Management
Since this project triggers Minimum Requirements #1 through #5, and is on a parcel located within
the City limits, this project has chosen to utilize the On-site Stormwater Management BMP's from
List#2 for each type of surface noted on the list below.
Is this project Flow Control Exempt? No (Yes\No) (See Appendix l-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).
Projects triggering Minimum Requirements 1 through 5, must meet the requirements in 1-2.5.5
Minimum Requirement 5— On-site Stormwater Management.
To meet the requirements of MR #5 for this project, each surface on List#2, as listed below, will be
reviewed and BMP's will be considered in the order listed for that type of surface. The first BMP for
the surface that is considered feasible shall be implemented.
Lawn and Landscaped Area:
• BMP T5.13: Post-Construction Soil Quality and Depth. (Refer to DOE Figure V-5.3.3)
Refer to this site for requirements and specifications. All projects are required to utilize this BMP.
http://www.soilsforsalmon.org/pdf/Soil BMP Manual.pdf
See Appendix 3 for the "Model Soil Management Plan for BMP T5.13" to be submitted with
Drainage Report and Application Material.
An alternate document acceptable to the City of Anacortes is a Test Report provided by the Soils
Supplier that identifies the soils to be used meet the specifications outlined under Minimum
Requirement 5. The specifications are in both WSDOT and CSI Formats. For specifications, refer to
the above referenced PDF.
This submittal can be a deferred submittal since most projects are not sure who the supplier will be
at the time of building permit application. Since this project triggerings Minimum Requirements 1
through 9, the Test Report will be provided to the Engineering Department.
This submittal will be deferred since this project is not sure who the supplier will be at this time.
Since this project triggers Minimum Requirements 1 through 5, the Test Report will be provided
to the Engineering Department as denoted in directions above.
22
List #2 — Project Triggering Minimum Requirement 1 through 5
For each surface, consider the BMPs 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.
Provide feasible detail under each BMP with maintenance and operations specifications in Minimum
Requirement 5.
Roofs:
1. BMP T5.30: Full Dispersion Feasible\Infeasible
If infeasible, explain the criteria:
Full Dispersion, BMP T5.30, is not feasible as the site is not retaining at least 65% of its natural
forested or native condition.
Or, T5.10A: Downspout Full Infiltration Feasible\Infeasible
If infeasible, explain the criteria:
Full Infiltration, BMP T5.10A, is not feasible as the site does not have outwash or loam soils, and
the underlying soils have an infiltration rate less than 0.3 inches per hour. Due to the low
infiltration rate in the underlying soils this BMP is not required, however will be incorporated
into the design for the future lot development to infiltrate roof water from new houses on Lots 1
and Lot 6 as noted further on in this report as noted.
2. BMP T7.30: Biorention Cells, Swales and Planter Boxes Feasible\Infeasible
If infeasible, explain the criteria:
Bioretention is not feasible as the site's underlying soils have an infiltration rate less than 0.3
inches per hour.
3. BMP T5.10B: Downspout Dispersion Systems Feasible\Infeasible
If infeasible, explain the criteria:
Dispersion is being proposed for roof runoff. Downspout Dispersion System are only functional
when having a vegetated flow path of 25 feet. The proposed lot will have sufficient room to
provide for a dispersion system for new home and driveway.
4. BMP T5.10C: Perforated Stub-out Connections Feasible\Infeasible
If infeasible, explain the criteria:
Not applicable since Downspout Dispersion Systems are proposed
Other Hard Surfaces: List#2
1. BMP T.5.30 Full Dispersion Feasible\Infeasible
If infeasible, explain the criteria:
Full Dispersion, BMP T5.30, is not feasible as the site is not retaining at least 65% of its natural
forested or native condition.
23
2. BMP T5.15: Permeable Pavements Feasible\Infeasible
If infeasible, explain the criteria:
Permeable Pavement is not feasible per the 2014 DOE Manual as the site's infiltration capacity is
less than 0.30 inches per hour, however this BMP can be incorporated using the low infiltration
rates available if upon site development it is deemed necessary.
3. BMP T7.30: Biorention Cells, Swales and Planter Boxes Feasible\Infeasible
If infeasible, explain the criteria:
Just as for Permeable Pavement, Bioretention is infeasible per the 2014 DOE Manual as the
underlying soils within the site has a lack of infiltration capacity (less than 0.30 inches per hour).
4. BMP T5.12: Sheet Flow Dispersion Feasible\Infeasible
If infeasible, explain the criteria:
Sheet Flow Dispersion BMP T5.12 will be used on proposed Lot 2 to disperse driveway runoff
and to hard surface walkway areas. Lots 1 and 6 will have a sufficient room to provide a 50-
foot dispersion area for driveways. Lots 2 will have sufficient room to disperse over 25-feet.
Or, BMP T5.11: Concentrated Flow Dispersion Feasible\Infeasible
If infeasible, explain the criteria:
Lot 2 will not implement Concentrated Flow Dispersion per BMP T5.11.
Steven Baughn 04/02/2021
Applicant Signature Date
24
APPENDIX 1 — Survey performed by a Professional Land Surveyor
Refer to attached "Existing Conditions, Site Prep and Erosion Control Sheet"attached for survey
information provided by Lisser and Associates also attached within this Appendix.
32
DINNER'S CONSENT AND DED I GATI ON
KNOW ALL PEOPLE BY THESE PRESENTS THAT HE, THE UNDERSIGNED O
OF INTEREST IN THE LAND HEREBY SHORT SUBDIVIDED, HEREBY DECLI
THIS SHORT PLAT TO BE THE GRAPHIC REPRESENTATION OF THE SHOR
SUBDIVISION MADE HEREBY, AND_DO HEREBY DEDICATE TO THE USE O
PUBLIC FOREVER ALL STREETS AND AVENUES NOT SHOWN AS PRIVATE
HEREON AND DEDICATE THE USE THEREOF FOR ALL PUBLIC, PURPOSES
INCONSISTENT WITH THE USE THEREOF FOR PUBLIC HIGHWAY PURPOSES,
AND ALSO THE RIGHT TO MAKE ALL NECESSARY SLOPES FOR GUTS Al
FILLS UPON THE LOTS SHOWN THEREON IN THE ORIGINAL REASONABLE
GRADING OF SAID STREETS, AND AVENUES, AND FURTHER DEDICATE T
USE OF THE PUBLIC, ALL THE EASEMENTS AND TRACTS SHOWN ON THIS
SHORT SUBDIVISION FOR ALL PUBLIC PURPOSES AS INDICATED THERE
INCLUDING BUT NOT LIMITED TO PARKS, OPEN SPACE, UTILITIES AND
DRAINAGE UNLESS SUCH EASEMENTS OR TRACTS ARE SPECIFICALLY
IDENTIFIED ON THIS SHORT SUBDIVISION AS BEING DEDICATED OR
CONVEYED TO A PERSON OR ENTITY OTHER THAN THE PUBLIC IN WHIGF
CASE HE DO HEREBY DEDICATE SUCH STREETS, EASEMENTS, OR TRAC
THE PERSON OR ENTITY IDENTIFIED AND FOR THE PURPOSE STATED.
FURTHER THE UNDERSIGNED OWNERS OF THE LAND HEREBY SUBDIVIDE'
WAIVE FOR THEMSELVES, THEIR HEIRS AND ASSIGNS AND ANY PERSOI'
ENTITY DERIVING TITLE FOR THE UNDERSIGNED, ANY AND ALL CLAIMS
DAMAGES AGAINST THE CITY OF ANACORTES, ITS SUCCESSORS AND I
TO WHICH MAY BE OCCASIONED BY THE ESTABLISHMENT, CONSTRUCTIC
MAINTENANCE OF ROADS AND/OR DRAINAGE SYSTEMS WITHIN THIS
SUBDIVISION OTHER THAN CLAIMS RESULTING FROM INADEQUATE
MAINTENANCE BY THE CITY OF ANACORTES.
FURTHER THE UNDERSIGNED OWNERS OF THE LAND HEREBY SUBDIVIDE'
AGREE FOR THEMSELVES, THEIR HEIRS AND ASSIGNED TO INDEMNIFY
HOLD THE CITY OF ANAGORTES, ITS SUCCESSORS AND ASSIGNS, HARM
FROM ANY DAMAGE, INCLUDING ANY COSTS OF DEFENSE, CLAIMED BY
PERSONS WITHIN OR WITHOUT THIS SUBDIVISION TO HAVE SEEN GAUSEG
ALTERATIONS OF THE GROUND SURFACE, VEGETATION, DRAINAGE, OR
SURFACE OR SUBSURFACE HATER FLOWS WITHIN THIS SUBDIVISION OR
ESTABLISHMENT, CONSTRUCTION OR MAINTENANCE OF THE ROADS HITI-
THIS SUBDIVISION.
THIS SUBDIVISION, DEDICATION, WAIVER OF CLAIMS AND AGREEMENT
HOLD HARMLESS-2IS MANE WITH THE FREE CONSENT AND IN AGCORDAI
WITH THE E51RE F 5 D OWNEE.
LG AN CORTES, LLG, A W , HINGTON LIMITED LIABILITY COMPANY
e r
GREGG COLEY, A MA D MAN A5 HI5 SEPARATE PROPERTY.
ACKNOAL.EDC EMENTS
STATE OF �F�N6 Ta4u
SURVEY DESGRI PT!ON
SKASI T COUNTY ASSESSORS PARCEL NUMBER P-320T7
THE EAST 1/2 OF THE SOUTHEAST 1/4 OF THE SOUTHWEST 1/4 OF SEGT101
25, TOWNSHIP 35 NORTH, RANGE 1 EAST, W.M.;
EXCEPT THE SOUTH 165 FEET THEREOF;
ALSO EXCEPT THE NORTH 1561 FEET THEREOF;
ALSO EXCEPT THE EAST 336 FEET THEREOF;
TOGETHER WITH THAT PORTION OF THE EAST 1/2 OF THE SOUTHEAST 1/4
OF THE SOUTHWEST 1/4 OF SECTION 25, TOWNSHIP 35 NORTH, RANGE 1
EAST, W.M., DESCRI BED AS FOLLOWS:
BEG!NN I NG AT A POINT ON THE EAST LINE OF SAID SOUTHEAST 1/4 OF
THE SOUTHWEST 1/4 WHICH IS 29O FEET NORTH OF THE SOUTHEAST GORI
OF SAID SOUTHEAST 1/4 OF THE SOUTHWEST 1/4;
THENCE NORTH ALONG SAID EAST LINE OF 16 FEET;
THENCE WEST 336 FEET;
THENCE SOUTH PARALLEL WITH THE EAST LINE OF SAID SOUTHEAST 1/4
THE SOUTHWEST 1/4 16 FEET, MORE OR LESS, TO A POINT DUE WEST OF
THE POINT OF BEGINNING;
THENCE EAST TO THE POINT OF BEG INNING;
EXCEPT RIGHT-OF-WAY FOR PUBLIC ROAD ALONG THE EAST BOUNDAR'
THEREOF, KNOWN AS AVENUE H OR HEART LAKE ROAD.
SITUATE IN THE GITY OF ANAGORTES, COUNTY OF SKAGIT, STATE OF
WASHINGTON.
UTILITIES EASEMENTS
AN EASEMENT IS HEREBY RESERVED FOR AND GRANTED TO THE CITY
ANAGORTES, PUGET SOUND ENERGY; CASCADE NATURAL GAS
GORPORATION;ZIPLY FIBER; AND GOMCAST GABLEVISION, AND THEIR
RESPECTIVE SUCCESSORS AND ASSIGNS UNDER AND UPON THE AREAS
AS UTILITIES EASEMENT AREAS AS SHOWN ON THE FACE OF THIS PLAT,
AS NOTED, 1 N WH ICH TO 1 NSTALL, LAY, CONSTRUCT, RENEW, OPERATE,
MAINTAIN AND REMOVE UTILITY SYSTEMS, LINES, FIXTURES AND
APPURTENANCES ATTACHED THERETO, FOR THE PURPOSE OF PROVIDING
UTILITY SERVICE TO THE SUBDIVISION AND OTHER PROPERTY, TOGETHE1
WITH THE RIGHT TO ENTER UPON THE LOTS AND TRACTS AT ALL TIMES I
THE PURPOSES STATED, WITH THE UNDERSTANDING THAT ANY GRANTEE
SHALL BE RESPONSIBLE FOR ALL UNNECESSARY DAMAGE IT CAUSED T
REAL PROPERTY OWNER IN THE SUBDIVISION BY THE EXERCISE OF RIGI
AND PRIVILEGES HEREIN GRANTED.
PRIVATE STORMWATER DRA 1 NAC E EASEMENT
EASEMENTS FOR THE PURPOSE OF CONVEYING ON-SITE STORMHATER
RUNOFF WERE GRANTED IN FAVOR OF ALL ABUTTING LOT OWNERS IN
N•
iLOT 24 LOT 54
MONT IN CASE
(NOV. 2020) ORGHARD AVE.
_ _ 558°5G'27"E 280.01' TO MONT AT PI
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PARK/OPEN r[�
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1 —..
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[ LOT 23 fix—
P-124006 10' UTILITIES —
EASEMENT
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(SEE SHEET 2 OF 3)
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f P-124Qo4
(SLE NOTE NO. .
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I 1---DRAINAGE EASEMENT
APPENDIX 2 — Soils Anaylsis (Volume 1, Chapter 3.1.1)
Geotechnical Report for Cherry Court by Geotest Engineers dated February 26th, 2020
Soils Report Linda Spicher dated November 24th, 2020
33
DINNER'S CONSENT AND DED I GATI ON
KNOW ALL PEOPLE BY THESE PRESENTS THAT HE, THE UNDERSIGNED O
OF INTEREST IN THE LAND HEREBY SHORT SUBDIVIDED, HEREBY DECLI
THIS SHORT PLAT TO BE THE GRAPHIC REPRESENTATION OF THE SHOR
SUBDIVISION MADE HEREBY, AND_DO HEREBY DEDICATE TO THE USE O
PUBLIC FOREVER ALL STREETS AND AVENUES NOT SHOWN AS PRIVATE
HEREON AND DEDICATE THE USE THEREOF FOR ALL PUBLIC, PURPOSES
INCONSISTENT WITH THE USE THEREOF FOR PUBLIC HIGHWAY PURPOSES,
AND ALSO THE RIGHT TO MAKE ALL NECESSARY SLOPES FOR GUTS Al
FILLS UPON THE LOTS SHOWN THEREON IN THE ORIGINAL REASONABLE
GRADING OF SAID STREETS, AND AVENUES, AND FURTHER DEDICATE T
USE OF THE PUBLIC, ALL THE EASEMENTS AND TRACTS SHOWN ON THIS
SHORT SUBDIVISION FOR ALL PUBLIC PURPOSES AS INDICATED THERE
INCLUDING BUT NOT LIMITED TO PARKS, OPEN SPACE, UTILITIES AND
DRAINAGE UNLESS SUCH EASEMENTS OR TRACTS ARE SPECIFICALLY
IDENTIFIED ON THIS SHORT SUBDIVISION AS BEING DEDICATED OR
CONVEYED TO A PERSON OR ENTITY OTHER THAN THE PUBLIC IN WHIGF
CASE HE DO HEREBY DEDICATE SUCH STREETS, EASEMENTS, OR TRAC
THE PERSON OR ENTITY IDENTIFIED AND FOR THE PURPOSE STATED.
FURTHER THE UNDERSIGNED OWNERS OF THE LAND HEREBY SUBDIVIDE'
WAIVE FOR THEMSELVES, THEIR HEIRS AND ASSIGNS AND ANY PERSOI'
ENTITY DERIVING TITLE FOR THE UNDERSIGNED, ANY AND ALL CLAIMS
DAMAGES AGAINST THE CITY OF ANACORTES, ITS SUCCESSORS AND I
TO WHICH MAY BE OCCASIONED BY THE ESTABLISHMENT, CONSTRUCTIC
MAINTENANCE OF ROADS AND/OR DRAINAGE SYSTEMS WITHIN THIS
SUBDIVISION OTHER THAN CLAIMS RESULTING FROM INADEQUATE
MAINTENANCE BY THE CITY OF ANACORTES.
FURTHER THE UNDERSIGNED OWNERS OF THE LAND HEREBY SUBDIVIDE'
AGREE FOR THEMSELVES, THEIR HEIRS AND ASSIGNED TO INDEMNIFY
HOLD THE CITY OF ANAGORTES, ITS SUCCESSORS AND ASSIGNS, HARM
FROM ANY DAMAGE, INCLUDING ANY COSTS OF DEFENSE, CLAIMED BY
PERSONS WITHIN OR WITHOUT THIS SUBDIVISION TO HAVE SEEN GAUSEG
ALTERATIONS OF THE GROUND SURFACE, VEGETATION, DRAINAGE, OR
SURFACE OR SUBSURFACE HATER FLOWS WITHIN THIS SUBDIVISION OR
ESTABLISHMENT, CONSTRUCTION OR MAINTENANCE OF THE ROADS HITI-
THIS SUBDIVISION.
THIS SUBDIVISION, DEDICATION, WAIVER OF CLAIMS AND AGREEMENT
HOLD HARMLESS-2IS MANE WITH THE FREE CONSENT AND IN AGCORDAI
WITH THE E51RE F 5 D OWNEE.
LG AN CORTES, LLG, A W , HINGTON LIMITED LIABILITY COMPANY
e r
GREGG COLEY, A MA D MAN A5 HI5 SEPARATE PROPERTY.
ACKNOAL.EDC EMENTS
STATE OF �F�N6 Ta4u
SURVEY DESGRI PT!ON
SKASI T COUNTY ASSESSORS PARCEL NUMBER P-320T7
THE EAST 1/2 OF THE SOUTHEAST 1/4 OF THE SOUTHWEST 1/4 OF SEGT101
25, TOWNSHIP 35 NORTH, RANGE 1 EAST, W.M.;
EXCEPT THE SOUTH 165 FEET THEREOF;
ALSO EXCEPT THE NORTH 1561 FEET THEREOF;
ALSO EXCEPT THE EAST 336 FEET THEREOF;
TOGETHER WITH THAT PORTION OF THE EAST 1/2 OF THE SOUTHEAST 1/4
OF THE SOUTHWEST 1/4 OF SECTION 25, TOWNSHIP 35 NORTH, RANGE 1
EAST, W.M., DESCRI BED AS FOLLOWS:
BEG!NN I NG AT A POINT ON THE EAST LINE OF SAID SOUTHEAST 1/4 OF
THE SOUTHWEST 1/4 WHICH IS 29O FEET NORTH OF THE SOUTHEAST GORI
OF SAID SOUTHEAST 1/4 OF THE SOUTHWEST 1/4;
THENCE NORTH ALONG SAID EAST LINE OF 16 FEET;
THENCE WEST 336 FEET;
THENCE SOUTH PARALLEL WITH THE EAST LINE OF SAID SOUTHEAST 1/4
THE SOUTHWEST 1/4 16 FEET, MORE OR LESS, TO A POINT DUE WEST OF
THE POINT OF BEGINNING;
THENCE EAST TO THE POINT OF BEG INNING;
EXCEPT RIGHT-OF-WAY FOR PUBLIC ROAD ALONG THE EAST BOUNDAR'
THEREOF, KNOWN AS AVENUE H OR HEART LAKE ROAD.
SITUATE IN THE GITY OF ANAGORTES, COUNTY OF SKAGIT, STATE OF
WASHINGTON.
UTILITIES EASEMENTS
AN EASEMENT IS HEREBY RESERVED FOR AND GRANTED TO THE CITY
ANAGORTES, PUGET SOUND ENERGY; CASCADE NATURAL GAS
GORPORATION;ZIPLY FIBER; AND GOMCAST GABLEVISION, AND THEIR
RESPECTIVE SUCCESSORS AND ASSIGNS UNDER AND UPON THE AREAS
AS UTILITIES EASEMENT AREAS AS SHOWN ON THE FACE OF THIS PLAT,
AS NOTED, 1 N WH ICH TO 1 NSTALL, LAY, CONSTRUCT, RENEW, OPERATE,
MAINTAIN AND REMOVE UTILITY SYSTEMS, LINES, FIXTURES AND
APPURTENANCES ATTACHED THERETO, FOR THE PURPOSE OF PROVIDING
UTILITY SERVICE TO THE SUBDIVISION AND OTHER PROPERTY, TOGETHE1
WITH THE RIGHT TO ENTER UPON THE LOTS AND TRACTS AT ALL TIMES I
THE PURPOSES STATED, WITH THE UNDERSTANDING THAT ANY GRANTEE
SHALL BE RESPONSIBLE FOR ALL UNNECESSARY DAMAGE IT CAUSED T
REAL PROPERTY OWNER IN THE SUBDIVISION BY THE EXERCISE OF RIGI
AND PRIVILEGES HEREIN GRANTED.
PRIVATE STORMWATER DRA 1 NAC E EASEMENT
EASEMENTS FOR THE PURPOSE OF CONVEYING ON-SITE STORMHATER
RUNOFF WERE GRANTED IN FAVOR OF ALL ABUTTING LOT OWNERS IN
N•
iLOT 24 LOT 54
MONT IN CASE
(NOV. 2020) ORGHARD AVE.
_ _ 558°5G'27"E 280.01' TO MONT AT PI
0
I (----
123.00'
PARK/OPEN r[�
J� 10' PRIVATE
I P-124044 DRAINAGE EASEMENT
(SEE SHEET 2 OF 3)
1 —..
" LOT I
1 x� I6G68 Sq,ft.
m 0.34 Acres.
[ LOT 23 fix—
P-124006 10' UTILITIES —
EASEMENT
A.F. NO. 2020061200:
(SEE SHEET 2 OF 3)
i V p
0 0 588°5c127"E
I x 123.00'
0 0 ry /
ifloLLS [Y I. /
s 1 /- p LOT 22 m �r /
z /
n m 0 U P-124005 I
t .E it LOT 2 +
ni " 15,404 Sq.ft. I C�
.T (
[ < s-2 Li) 0.35 Acres, 1t
m 1
I r '
iU
0
1
ILOT 21 x I TILITIES _
1 TOUBENEFIT LOl
f P-124Qo4
(SLE NOTE NO. .
589'32'OS"E 13q.0;
I 1 20' INGRESS, EGF
I x AND UTILITIES ESA
TO BENEFIT LOT
I (SEE NOTE NO. 21
I
' o LOT 3
LOT 20 u� O Ib b82 Sc t.
' P-124003 v
0.38 Acr 5.
IL
JO' PRIVATE
I 1---DRAINAGE EASEMENT
APPENDIX 3 — Model Soil Management Plan for BMP T5.13
An alternate document acceptable to the City of Anacortes is a Test Report provided by the Soils Supplier that
identifies the soils to be used meet the specifications outlined under Minimum Requirement 5. The
specifications are in both WSDOT and CSI Formats. For specifications, refer to the above referenced PDF.
This submittal can be a deferred submittal since most projects are not sure who the supplier will be at the time
of building permit application. For projects that trigger Minimum Requirements 1 through 5, the Test Report will
be provided to the Building Department. Projects triggering Minimum Requirements 1 through 9, the Test
Report will be provided to the Engineering Department.
This submittal will deferred since this project is unsure of who the supplier will be. Since this project
triiiers Minimum Requirements 1 through 5, the Test Report will be provided to the Engineering
Department as required.
34
DEFERRED SUBMITTAL: PROVIDE A TEST REPORT FROM SOILS SUPPLIER TO THE ENGINEERING
DEPT.
PROJECT INFORMATION "Model Soil Management Plan for BMP T5.13" age# of pages
Complete all information on page 1;only site address and permit number on additional pages.
Site Address/Lot No.:
Permit Type: Permit Number:
Permit Holder: Phone:
Mailing Address:
Contact Person: Phone:
Plan Prepared By:
ATTACHMENTS REQUIRED(Check off required items that are attached to this plan)
L
Site Plan showing,to scale: Areas of undisturbed native vegetation(no amendment required)
New planting beds and turf areas(amendment required)
Type of soil improvement proposed for each area
Soil test results(required if proposing custom amendment rates)
Product test results for proposed amendments I
AREA# (should match Area#on Site Plan)
PLANTING TYPE Turf Undisturbed native vegetation
Planting Beds Other:
SQUARE FOOTAGE OF THIS AREA: square feet
SCARIFICATION inches(depth)of scarification needed to achieve finished total 12"loosened depth.
Subsoil will be scarified
PRE-APPROVED inches of compost or imported topsoil applied
AMENDMENT METHOD: X 3.1 (conversion factor, inches to cubic yards) PRODUCT:
Topsoil import =cu.yards per 1,000 sq. ft.
Amend with compost X ,000s sq.ft. in this area
Stockpile and amend =cubic yards of amendment —*—>—>—*—* QUANTITY: CU.YDS.
( cu.yds. stockpiled) (needed to cover this area to designated depth)
CUSTOM AMENDMENT Attach test results and calculations.
Topsoil import inches organic matter or topsoil import PRODUCT:
Topsoil&compost lift X 3.1
_Amend =cu.yards/ 1,000 sq.ft.
_Stockpile and amend X ,000s sq.ft.in this area
( cu.yds. stockpiled) =cubic yards of amendment —*—*—*—*—* QUANTITY: CU.YDS.
MULCH ,000 sq.ft. PRODUCT:
X 6.2 (conversion, to give 2 inch mulch depth)
=cubic yards of mulch —*—*—*—*—*—* QUANTITY: CU.YDS.
TOTAL AMENDMENT/TOPSOIL/MULCH FOR ALL AREAS(complete on page 1 only, totaling all areas/pages in this Plan)
❑ Product#1: ❑ Quantity: cu.yds.
❑ Test Results: %organic matter C:N ratio<25:1(except mulch,or<35:1 for native plants) "stable"(yes/no)
❑ Product#2: ❑ Quantity: cu.yds.
❑ Test Results: %organic matter C:N ratio<25:1 (except mulch,or<35:1 for native plants) "stable"(yes/no)
❑ Product#3: ❑ Quantity: cu.yds.
❑ Test Results: %organic matter C:N ratio<25:1(except mulch,or<35:1 for native plants) "stable"(yes/no)
Date: Inspector: Approved: Revisions Required:
35
Date: Inspector: Approved: Revisions Required:
APPENDIX 4— Determining Construction Site Sediment Damage Potential (Appendix 7 — NPDES Phase
II Permit)
See attached Construction Site Sediment Transport Potential Worksheet as required for this project.
i.
ii.
iii.
36
iv. 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.
v. 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;
ii. Lakes;
iii. Category I, II, and III wetlands;
iv. Marine near-shore habitat;
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.
Ace of Hearts Creek located approximately 125 feet easterly of the area of the site proposed for development
and is noted as a "Fish Bearing"per the Department of Natural Resources FPARS Mapping. Furthermore,
the slopes along the edge of Ace of Hearts Creek are slightly steeper than 25% in some locations.
vi. 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:
i. The feature or a buffer to protect the feature is within 200 feet downstream of the site.
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 1 of 3
37
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:
vii. Sheet flow through a vegetated area with dense ground cover
viii. Flow through a wetland not included as a sensitive feature
ix. 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.
Discharge from the sites proposed detention pond will be be released to an existing shallow ditch
located along the south side of Orchard Avenue, which conveys runoff easterly to Ace of Hearts
Creek as occurs today.
x. 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°/0 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.
Refer to the attached worksheet prepared for this project noting a score of 100 for this site, however
this includes the development of all 6-future home sites, which will all not occur concurrently with
plat infrastructure construction. Not accounting for home development reduces the total score
below the threshold transport rating to "Low".
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 USE 15
>10-15% 30
>15% 50
B. Site Area to be cleared and/or graded:
<5,000 sq. ft 0
5,000 sq. ft. — 1 acre 30
>1 acres* 50
*Now that the plat infrastructure is complete, only future home site construction
occur, thus generally less than 1-acre of area will be cleared and/or graded at one
time. With this in mind this could be represented as 30 points rather than 50 points
as noted here.
C. Quantity of cut and/or fill on site:
<500 cubic yards 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): 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
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 intercepted1:
Yes 0
No 25
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 90
*This now only includes future home site construction, thus generally less than 1-
acre of area will be cleared and/or graded at one time.
APPENDIX 5— Site Plan with all applicable information (Minimum Size 11x17 at a legible scale)
See attached Civil Plans
IVPEV OUS COVERAGE
RESIDENCE: 2,446 S.F.
STEPS/WALKWAY: 64 S.F.
COVERED PORCH: 135 S.F.
COVERED PATIO: 128 S.F.
DRIVEWAY: 838 S.F.
TOTAL: 3,611 S.F.
LOT AREA:
15,404 S.F.
PERCENT COVERAGE:
3,611 / 15,404 = 23.4%
MAXIMUM ALLOWED: 48.0%
43th et
GRAPHIC SCALE
41s1St 10 0 5 10 20
( IN FEET )
Horiz. Scale: 1 Inch = 10 Feet
CHERRY COURT SP
GIBRALTAR MODIFIED
(3-CAR GARAGE)
Qu&EI Dr
LANDSCAPE PLAN
LOT 2 - P 135448
4310 CHERRY COURT
lers ANACORTES, WA
JOB NO: PLAT OF "CHERRY COURT"
DESIGNED: LG
z Heart Lake PI _
DATE: 04/01/2021
MAP SHEET
1 of 1
ROOF AREA: 2,799 S.F. / 700 X 10'
= 39.99 (USE: 40.0 L.F.)
Flouse
JL JI F L i
I I� r I I, I - C V PEV OUS COVERAGE
- - . L IC_ RESIDENCE: 2,446 S.F.
-1 - 1 11 — II C STEPS/WALKWAY: 64 S.F.
- l J - -L COVERED PORCH: 135 S.F.
- I - ll - COVERED PATIO: 128 S.F.
- JI - I- - lE DRIVEWAY: 838 S.F.
- - IL__-Il II • - TOTAL: 3,611 S.F.
— lE
I _ =IC LOT AREA:
- - I — Jr _ IL 15,404 S.F.
- I J -E PERCENT COVERAGE:
- I _ 1 - 3,611 / 15,404 = 23.4%
- - 1 _ J- I E MAXIMUM ALLOWED: 48.0%
— a - E
inl
GRAPHIC SCALE
Downspout extension 10 0 5 10 20
( IN FEET )
Splashblock Horiz. Scale: 1 Inch = 10 Feet
CHERRY COURT SP
GIBRALTAR MODIFIED
(3-CAR GARAGE)
NOT TO SCALE LANDSCAPE PLAN
LOT 2 - P 135448
'e III-3.1 .7 4310 CHERRY COURT
Splashblock Dispersion ANACORTES, WA
Revised December 2015
ghf.hfr /for copyright notice including permissions,
BOB NO: PLAT OF "CHERRY COURT"
DESIGNED: LG
DRAWN:
S P O U T DATE: 04/01/2021
SPERSIOI\I SHEET 2 of 2
APPENDIX 6— Documented Site Photos (Show all directions of the site, including frontage)
Allimmoolit_, i •try
lilt
Location: View from Orchard Avenue looking southwest
Description of the photo:Subject property lookinji southwest
Photo taken by:HLN
rI �u • _�"■. —, e 1 DTI F. % ' n .�. `� 1
■ 11
/ • z3"lf� ,.
stAliXt,j,,
Location: View from private roadway along south side of site
Description of the photo:Subject property lookinji northwest
Photo taken by:HLN
c•
t x,
Location: View from Orchard Avenue
Description of the photo:Subject property looking southeast along west property line
Photo taken by:HLN
r
-
Location: View along north side of Orchard Avenue
Description of the photo:Existing ditch outlet at subject property's northeast corner looking east
Photo taken by:HLN
S • p- •
rat .-r ay^E' ��
—112
1'si91';I{-illl""7 i r,11: F 191I
Location: View along north side of Orchard Avenue
Description of the photo: From subject property's northeast corner looking west
Photo taken by:HLN