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Permit File BLD-2024-0167 602 Longview Avenue
FIXTURES PARCEL: P33244 LEGAL DESCRIPTION: APPLICANT: Allen, Robb 27 100th Ave NE, Suite 100 Bellevue, WA 98004 (425) 679.0907 OWNER: OREMUS KEVIN OREMUS DONNETA LYNNWOOD, WA 98087 VALUATIONS: Estimated construction cost 800000.00 $760,907.37 $760,907.37Total: FEES:Paid Due Fire Impact Fee EMS Portion $438.93 $0.00 SFR SEWER GFC $11,349.00 $0.00 Sewer Inspection Fee $60.51 $0.00 State Building Code Council fee $6.50 $0.00 Mechanical and plumbing remodel fixtures fees $359.50 $0.00 Plan Application Fee $200.00 $0.00 Building Permit Fee $4,658.75 $0.00 Plan Review Fee $3,028.19 $0.00 Storm Water Review Sq Ft $833.68 $0.00 SFR or duplex site plan review $60.00 $0.00 Park Impact Fee SFR $1,644.37 $0.00 SFR TRANSPORTATION IMPACT FEE $3,400.68 $0.00 Fire Impact Fee Fire Portion $123.81 $0.00 Consultant/3rd Party Review Fees - Stormwater $2,086.82 $0.00 STORM DRAIN GFC ONE ERU $2,056.00 $0.00 $0.00Totals : CONTACT:Pearson, Michael 1010 22nd street ANACORTES, WA 98221 206.915.2635 $30,306.74 BLD-2024-0167 RESIDENTIAL SINGLE FAMILY BUILDING ISSUED: EXPIRES: 07/12/2024 01/12/2026 PROJECT NAME: OREMUS RESIDENCE SITE ADDRESS: 602 LONGVIEW AVENUE ANACORTES Page 1 of 2Printed by : Cheri Gleichmann on: 10/09/2024 11:57 AM City of Anacortes, WA 904 6th Street Anacortes, WA 98221 (360) 293-1901 http://cityofanacortes.org/ Qty Mechanical Fixtures 1 Clothes Dryer and Duct 1 Range Hood 1 Refrigeration Unit 1 Gas Water Heater 1 Heat Pump 1 Furnace 2 Fireplace 2 Stove/Range/Oven 7 Exhaust Fans Qty Plumbing Fixtures For inspections, please call (360) 293-1901 REQUIRED INSPECTIONS Initial BMP's Sewer Line Storm Drain Connection Footings Perimeter Drains Foundation Wall STORMWATER BMPS 1ST MID PROJECT INSPECTION Underfloor Underground Plumbing Underslab Mechanical Rough-In Gas Piping Plumbing Rough-In Shear Wall and Nailing Framing STORMWATER BMPS 2ND MID PROJECT INSPECTION Insulation Drywall or Lath Roofing Final Cross Connection or backflow assembly verified Fenestration U-Factors Permeable Soil Depth CURB FORM INSPECTION CURB FINAL INSPECTION Public Works Final Building Final Stormwater Final * Per staff comments the city does not have current Fire Flow Reports in this area and a 3rd party testing company will need to perform this task and provide reports at the submittal of the construction civil plans for review. Per applicant, Commercial Fire Protection has been engaged to perform the Fire Flow Test at Hydrant #275 and current permit set plans indicate that a fire sprinkler system per NFPA 13D will be provided (Sheet 2.1). The applicant requests that we make the permit conditional on the Fire Flow test results, which are forthcoming, and if test shows adequate flow the proposed sprinklers can be omitted from the permit scope. CONDITIONS Page 2 of 2Printed by : Cheri Gleichmann on: 10/09/2024 11:57 AM City of Anacortes, WA RESIDENTIAL SINGLE FAMILY BUILDING BLD-2024-0167 PARCEL B APPROX. LOCATION OF PER SURVEY PARCEL A 227 226 228 229 230 233 232 231 N 87-00-38 E 160.70' 234 L O N G V I E W A V E N 88-23-00 W 160.01' N 0 2 - 2 1 - 1 6 E 1 8 9 . 4 6 ' S 0 2 - 2 1 - 1 6 W 2 0 2 . 3 7 ' 225 215 220 225 230 22 4 223 222 221 219 215 218 217 216 216 217 218 219 221 222 223 224 226 227 228 229 231 23 2 233 234 220 234 231 231 232 233 232 2 3 0 23 0 229 22 2 230 228 227 224 225 226 22 3 22 4 231 232 233 23 1 2 3 0 ............... EL. 232'-0" (232.0) ....... EL. 231'-0" (231.0) ............. EL. 222'-0" (222.0) N 1" = 10' ARCHITECTURAL SITE PLAN NOTE: ARCHITECTURAL SITE PLAN DOES NOT NECESSARILY CONTAIN ALL INFORMATION OBTAINED OR DEVELOPED BY THE SURVEYOR. REFER TO SITE SURVEY DRAWING(S) FOR ADDITIONAL SITE DATA PROPOSED NEW SINGLE FAMILY RESIDENCE MAIN FLOOR MAIN FLR - GARAGE LOWER FLOOR 20 ' FR O N T 5' SIDE 20 ' RE A R 5' SIDEPLANTER PLANTER CO N C . CONC. AUTO COURT CONC. GRAVEL CO N C . CONC. CONC. H A H A 3 7 1 1 3 7 78 ' - 0 " 12 ' - 0 " 78 ' - 0 " 12 ' - 0 " 49 ' - 0 " 51 ' - 0 34" 63 ' - 4 12" 48 ' - 4 34" 113'-0" 37'-0" 10'-0" 113'-0" GR A V E L ROOF O.H. ROCKERY ROOF O.H. MECH. T R E N C H D R A I N TR E N C H D R A I N 4% 4% 1.5% 230.75 230.75 221.75 221.92 230. 2 5 2 3 0 . 2 5 231.0 232.0 227.5 226.17 226.33 6.5 % 23 0 . 0 23 0 . 7 5 23 0 . 7 5 230.75 MAIN FLOOR LOWER FLOOR 232.0 RETAINED = 96 / 122 X 100 = 78.7% T1 TREE # TREE SCHEDULE Y24 SPECIES 122 DIA. (INCHES) T2 T3 Y72 N26DECIDUOUS DECIDUOUS RETAINED (Y/N) DECIDUOUS T1 T2 TOTAL T3 YARD DRA I N CASCADE NATURAL GAS EASEMENT EXISTING 15'-0" WIDE 1" = 20' LOT COVERAGE DIAGRAM2 ROOF EAVE, LESS OUTER 36" (6 SF) HOUSE FOOTPRINT (4430 SF) COVERED DECK (443 SF) COVERED PORCH (193 SF) PATIO, +18" ABV GRADE (771 SF) ROOF EAVE, LESS OUTER 36" (6 SF) HARDSCAPE, ON GRADE LANDSCAPE AREA (4200 SF) LANDSCAPE AREA (2400 SF) LAWN 234 230 233 2 2 5 220 225 230 232 231 229 228 2 2 7 2 2 6 2 2 4 22 3 2 2 2 22 1 221 222 223 224 226 227 228 229 231 22 0 215 1" = 20' AVERAGE GRADE LEVEL DIAGRAM1 AVERAGE GRADE LEVEL = 6356.9 / 28 = 227.0 A B C D POINT AVERAGE GRADE LEVEL CALCULATIONS 226.5 227.7 225.9 225.8 L M N O POINT 225.3 224.5 225.5 225.3 W X Y Z POINT 230.8 232.1 228.3 229.0 E F G H 224.3 225.7 223.8 223.4 P Q R S 227.2 226.5 229.9 228.6 AA BB 227.8 227.6I J K 223.8 224.1 223.3 T U V 231.6 230.8 231.8 6356.9TOTAL POINT POINT A B C D E F G H I J K L M N O P Q R S T UV W X Y Z AA BB 1902 60 2 L o n g v i e w A v e Sheet No. 03/08/24Issue Date: Project No. Or e m u s R e s i d e n c e An a c o r t e s , W A 9 8 2 2 1 No.Date Revision FA X : 4 2 5 - 6 7 9 - 0 8 0 4 PH O N E : 4 2 5 - 6 7 9 - 0 9 0 7 BE L L E V U E , W A 9 8 0 0 4 27 1 0 0 T H A V E N U E N E , S U I T E 1 0 0 PERMIT SET 1.0 SITE PLAN ARCH. PARCEL B APPROX. LOCATION OF PER SURVEY PARCEL A 227 226 228 229 230 233 232 231 N 87-00-38 E 160.70' 234 L O N G V I E W A V E N 88-23-00 W 160.01' N 0 2 - 2 1 - 1 6 E 1 8 9 . 4 6 ' S 0 2 - 2 1 - 1 6 W 2 0 2 . 3 7 ' 225 215 220 225 230 22 4 223 222 221 219 215 218 217 216 216 217 218 219 221 222 223 224 226 227 228 229 231 23 2 233 234 220 234 N 1" = 10' SITE DEMOLITION PLAN NOTE: SITE DEMOLITION PLAN DOES NOT NECESSARILY CONTAIN ALL INFORMATION OBTAINED OR DEVELOPED BY THE SURVEYOR. REFER TO SITE SURVEY DRAWING(S) FOR ADDITIONAL SITE DATA T1 T2 T3 CASCADE NATURAL GAS EASEMENT EXISTING 15'-0" WIDE 20 ' FR O N T 5' SIDE 20 ' RE A R 5' SIDE 410.2 SF (E) GRAVEL DRIVE TO BE REMOVED EXISTING SINGLE FAMILY RESIDENCE TO BE DEMO'D (E) DECIDUOUS TREE TO BE REMOVED (E) WOOD DECK TO BE DEMO'D (E) WOOD STAIR TO BE DEMO'D (E) WOOD WALK TO BE DEMO'D (E) CONC STAIR TO BE DEMO'D EXISTING SHED TO BE DEMO'D 1174.5 SF 26" 24" 72" 1902 60 2 L o n g v i e w A v e Sheet No. 03/08/24Issue Date: Project No. Or e m u s R e s i d e n c e An a c o r t e s , W A 9 8 2 2 1 No.Date Revision FA X : 4 2 5 - 6 7 9 - 0 8 0 4 PH O N E : 4 2 5 - 6 7 9 - 0 9 0 7 BE L L E V U E , W A 9 8 0 0 4 27 1 0 0 T H A V E N U E N E , S U I T E 1 0 0 PERMIT SET 1.0D DEMO PLAN SITE SPINK'S A D D I T I O N T O ANACO R T E S VOL. 7, P G . 3 1 HILLCRE S T D E V E L O P M E N T LLC 7-L O T S H O R T P L A T AF NO. 2 0 0 7 0 9 0 5 0 0 3 5 PARCEL A APPROXLIMATE LOCATION OF PARCEL B 01.EXISTING CONDITIONS 02. PROPOSED STORMWATER PLAN 03.TEMPORARY EROSION AND SEDIMENT CONTROL PLAN 04.DETAIL SHEET CALL BEFORE YOU DIG 1-800-424-5555 PACIFIC SURVEYING & ENGINEERING, INC. 909 Squalicum Way, Suite 111 | BELLINGHAM, WA 98225 T: 360.671.7387 | F: 360.671.4685 WWW.PSESURVEY.COM | INFO@PSESURVEY.COM DATUM 04OFSHEET KEVIN OREMUS KIRKLAND, WA. 98033 4010 LAKE WASHINGTON BLVD. NE STE 320 OREMUS RESIDENCE STORMWATER IMPROVEMENTS 602 LONGVIEW AVE. ANACORTES, WA. 206.409.5344 01 200 4010 G R A P H I C S C A L E ( U S S U R V E Y F E E T ) EXISTING CONDITIONS OREMUS RESIDENCE - STORMWATER IMPROVEMENTS PROJECT ADDRESS: 602 LONGVIEW AVENUE, ANACORTES, WA SECTION 30, TOWNSHIP 35 NORTH, RANGE 02 EAST, CITY OF ANACORTES, SKAGIT COUNTY, WASHINGTON 05-07-2024 PROPOSED FEATURE SYMBOL LEGEND PROPOSED LINE LEGEND CALL BEFORE YOU DIG 1-800-424-5555 PACIFIC SURVEYING & ENGINEERING, INC. 909 Squalicum Way, Suite 111 | BELLINGHAM, WA 98225 T: 360.671.7387 | F: 360.671.4685 WWW.PSESURVEY.COM | INFO@PSESURVEY.COM DATUM 04OFSHEET KEVIN OREMUS KIRKLAND, WA. 98033 4010 LAKE WASHINGTON BLVD. NE STE 320 OREMUS RESIDENCE STORMWATER IMPROVEMENTS 602 LONGVIEW AVE. ANACORTES, WA. 206.409.5344 02 200 4010 G R A P H I C S C A L E ( U S S U R V E Y F E E T ) PROPOSED STORMWATER PLAN 05-07-2024 STRUCTURAL SPINK'S A D D I T I O N T O ANACO R T E S VOL. 7, P G . 3 1 PARCEL A APPROXLIMATE LOCATION OF PARCEL B TS MU IP CE VG PS SF SF SF SF SF IP IP VG DC CH DC CH DC CH DC CH DC CH DC CH TS MU PS TSMUPS VG VGVG VG VG IP IP TSMUPS SEE STORM WATER MANAGEMENT REPORT FOR DETAILS EROSION CONTROL LEGEND TS MU DC IP SF CE VG PS CH BMP T5.13 DETAIL & NOTES CALL BEFORE YOU DIG 1-800-424-5555 PACIFIC SURVEYING & ENGINEERING, INC. 909 Squalicum Way, Suite 111 | BELLINGHAM, WA 98225 T: 360.671.7387 | F: 360.671.4685 WWW.PSESURVEY.COM | INFO@PSESURVEY.COM DATUM 04OFSHEET KEVIN OREMUS KIRKLAND, WA. 98033 4010 LAKE WASHINGTON BLVD. NE STE 320 OREMUS RESIDENCE STORMWATER IMPROVEMENTS 602 LONGVIEW AVE. ANACORTES, WA. 206.409.5344 03 200 4010 G R A P H I C S C A L E ( U S S U R V E Y F E E T ) TEMPORARY EROSION AND SEDIMENT CONTROL PLAN 05-07-2024 THERMOPLASTIC PIPE GRAVEL BASE AND BACKFILL SPECIFICATION CALL BEFORE YOU DIG 1-800-424-5555 PACIFIC SURVEYING & ENGINEERING, INC. 909 Squalicum Way, Suite 111 | BELLINGHAM, WA 98225 T: 360.671.7387 | F: 360.671.4685 WWW.PSESURVEY.COM | INFO@PSESURVEY.COM DATUM 04OFSHEET KEVIN OREMUS KIRKLAND, WA. 98033 4010 LAKE WASHINGTON BLVD. NE STE 320 OREMUS RESIDENCE STORMWATER IMPROVEMENTS 602 LONGVIEW AVE. ANACORTES, WA. 206.409.5344 04 DETAIL SHEET 05-07-2024 SPINK'S A D D I T I O N T O ANACOR T E S VOL. 7, P G . 3 1 PARCEL A APPROXLIMATE LOCATION OF PARCEL BLONGVIEW AVE (1) 26" DBH TREE TO BE REMOVED (1) 72" DBH ROBINIA (BLACK LOCUST) TREE TO REMAIN, PRESERVE AND PROTECT (1) 6" DBH PYRUS (PEAR) TREE TO REMAIN, PRESERVE AND PROTECT (1) 24" DBH PRUNUS (CHERRY) TREE TO REMAIN, PRESERVE AND PROTECT CONCRETE PAVING, TYP. HARD SURFACE DRIVEWAY GRAVEL SURFACING, TYP. 12"-24" ROCK WALL, TYP. DRIVEWAY ACCESS 24" ROCK WALL, TYP. GRAVEL SURFACING, TYP. 5 L1.1 5 L1.1 LANDSCAPE CALCS SITE AREA: 31,346 SF 20% OF SITE REQ'D TO BE LANDSCAPED PER AMC TABLE 19.42.020 REQUIRED LANDSCAPE AREA: 6,268 SF LANDSCAPE AREA PROPOSED: >10,000 SF TREE DENSITY: 32 TREE UNITS REQ'D PER AMC 16.50 (31,346 SF/1000) TREE UNITS RETAINED: 1 TREE AT 24" DBH = 5 TREE UNITS 1 TREE AT 72" DBH = 8 TREE UNITS 1 TREE AT 6" DBH = 2 TREE UNITS REPLACEMENT TREES REQUIRED: 17 TREE UNITS (32-15=17) REPLACEMENT TREES PROPOSED: 17 TREE UNITS* *REFER TO PLANT SCHEDULE FOR TREE SPECIES PLANTING NOTES: 1.ALL NEW LANDSCAPE AREAS ARE TO BE WATERED WITH AN AUTOMATIC WATER CONSERVING IRRIGATION SYSTEM. IRRIGATION PLANS TO BE BIDDER DESIGNED AND INSTALLED AS PART OF THE LANDSCAPING SCOPE. 2.MULCH ALL SHRUB AND GROUNDCOVER AREAS WITH A MINIMUM 3" DEPTH OF SPECIFIED MULCH. 3.WHERE GROUNDCOVER IS SHOWN, IT SHALL BE PLANTED AT THE SPECIFIED SPACING THROUGHOUT THE BED, INCLUDING AREAS UNDERNEATH TREES AND SHRUBS, START FIRST ROW 12" FROM EDGE OF BED. 4.SEE CIVIL DRAWINGS FOR GRADING, UTILITIES AND EROSION CONTROL. 0' SCALE: N 40'20'10'5' 1"=10'-0" L1.0 LANDSCAPE PLAN CHECKED DRAWN REVISIONS: SCALE DATE OR E M U S R E S I D E N C E 60 2 L O N G V I E W , A N A C O R T E S , W A 08/17/2016 1430 NE 65th StreetSeattle, WA 98115t: 206-322-1732 fora.land Fora Landscape Architects AN D R E W J RASM U S S E N N O.739EXP.6 /2 6 /2 025 STA T E O F W A SHIN G T O N L A N D S CAPE A R C H I T ECT 06/13/2024 EXISTING TREE PRESERVE AND PROTECT SYMBOL BOTANICAL / COMMON NAME SIZE CONDITION / REMARKS EVERGREEN TREES CHAMAECYPARIS OBTUSA `GRACILIS` SLENDER HINOKI CYPRESS MIN. 8`-10` HT.FULL AND BUSHY TO BASE, B&B OR CONT. PINUS FLEXILIS 'VANDERWOLF'S PYRAMID' VANDERWOLF'S PYRAMID LIMBER PINE MIN. 8`-10` HT.FULL & BUSHY, SPACING AS SHOWN ON PLAN SMALL ACCENT TREES ACER CIRCINATUM (MULTI-STEM) VINE MAPLE (3) 1" CAL. TRUNKS, MIN. 8`-10` HT MATCHED, B&B., WELL BRANCHED AMELANCHIER X GRANDIFLORA `AUTUMN BRILLIANCE` `AUTUMN BRILLIANCE` SERVICEBERRY (3) 1" CAL. TRUNKS, MIN. 8`-10` HT MATCHED, B&B., WELL BRANCHED RHAMNUS PURSHIANA CASCARA MIN. 2" CAL., 8`-10` HT.MATCHED, B&B., WELL BRANCHED STEWARTIA PSEUDOCAMELLIA JAPANESE STEWARTIA MIN. 2" CAL., 10`-12` MIN. HT.MATCHED, B&B., WELL BRANCHED ABOVE 6`HT. SYMBOL BOTANICAL / COMMON NAME SIZE CONDITION/REMARKS SHRUBS CORNUS SERICEA `ISANTI` ISANTI REDOSIER DOGWOOD MIN. 1 GAL. CONTAINER FULL & BUSHY, SPACING AS SHOWN ON PLAN FOTHERGILLA GARDENII DWARF FOTHERGILLA FULL & BUSHY, SPACING AS SHOWN ON PLAN GAULTHERIA SHALLON SALAL FULL & BUSHY, SPACING AS SHOWN ON PLAN HOLODISCUS DISCOLOR OCEAN-SPRAY FULL & BUSHY, SPACING AS SHOWN ON PLAN HYDRANGEA QUERCIFOLIA `PEE WEE` OAKLEAF HYDRANGEA FULL & BUSHY, SPACING AS SHOWN ON PLAN LONICERA NITIDA 'RED TIPS' RED TIPS BOX HONEYSUCKLE FULL & BUSHY, SPACING AS SHOWN ON PLAN MAHONIA AQUIFOLIUM `COMPACTA` COMPACT OREGON GRAPE FULL & BUSHY, SPACING AS SHOWN ON PLAN MYRICA CALIFORNICA PACIFIC WAX MYRTLE FULL & BUSHY, SPACING AS SHOWN ON PLAN PHILADELPHUS LEWISII WILD MOCKORANGE FULL & BUSHY, SPACING AS SHOWN ON PLAN RIBES SANGUINEUM `KING EDWARD VII` RED FLOWERING CURRANT FULL & BUSHY, SPACING AS SHOWN ON PLAN ROSA NUTKANA NOOTKA ROSE FULL & BUSHY, SPACING AS SHOWN ON PLAN SARCOCOCCA RUSCIFOLIA FRAGRANT SARCOCOCCA FULL & BUSHY, SPACING AS SHOWN ON PLAN SPIRAEA BETULIFOLIA `TOR` BIRCHLEAF SPIREA FULL & BUSHY, SPACING AS SHOWN ON PLAN VACCINIUM OVATUM EVERGREEN HUCKLEBERRY FULL & BUSHY, SPACING AS SHOWN ON PLAN ACCENTS DRYOPTERIS ERYTHROSORA AUTUMN FERN FULL & BUSHY, SPACING AS SHOWN ON PLAN EPIMEDIUM X VERSICOLOR `SULPHUREUM` BICOLOR BARRENWORT MIN. 1 GAL. CONTAINER FULL & BUSHY, SPACING AS SHOWN ON PLAN MAIANTHEMUM DILATATUM FALSE LILY-OF-THE-VALLEY FULL & BUSHY, SPACING AS SHOWN ON PLAN MISCANTHUS SINENSIS `YAKU JIMA` YAKU JIMA DWARF MAIDEN GRASS FULL & BUSHY, SPACING AS SHOWN ON PLAN POLYSTICHUM MUNITUM WESTERN SWORD FERN FULL & BUSHY, SPACING AS SHOWN ON PLAN SESLERIA AUTUMNALIS AUTUMN MOOR GRASS FULL & BUSHY, SPACING AS SHOWN ON PLAN GROUND COVERS NATIVE BUFFER MAHONIA AQUIFOLIUM OREGON GRAPE 30" O.C. TRIANG. SPAC., START FIRST ROW 18" FROM EDGE RUBUS PARVIFLORUS THIMBLEBERRY 30" O.C. TRIANG. SPAC., START FIRST ROW 18" FROM EDGE SYMPHORICARPOS ALBUS COMMON SNOWBERRY 30" O.C. TRIANG. SPAC., START FIRST ROW 18" FROM EDGE LAWN LAWN SEE SPECIFICATION 3L$176&+('8L( 0' SCALE: N 40'20'10'5' 1"=10'-0" L1.1 CHECKED DRAWN REVISIONS: SCALE DATE OR E M U S R E S I D E N C E 60 2 L O N G V I E W , A N A C O R T E S , W A 08/17/2016 1430 NE 65th StreetSeattle, WA 98115t: 206-322-1732 fora.land Fora Landscape Architects AN D R E W J RASM U S S E N N O.739EXP.6 /2 6 /2 025 STA T E O F W A SHIN G T O N L A N D S CAPE A R C H I T ECT PLANT SCHEDULE, DETAILS & NOTES NTS DECIDUOUS TREE PLANTING ON SLOPE1 NTS CONIFEROUS TREE PLANTING2 SHRUB PLANTING NTS3 NTS SHRUB / GROUNDCOVER PLANTING ON SLOPE4 GROUNDCOVER PLANTING NTS6 LANDSCAPE ROCKERY5 MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER MIN. 1 GAL. CONTAINER 06/13/2024 MAIN FLOOR EL. 232'-0" EL. 222'-0" LOWER FLOOR MAIN FLOOR EL. 232'-0" EL. 222'-0" LOWER FLOOR 1/4" = 1'-0" WEST ELEVATION 1/4" = 1'-0" SOUTH ELEVATION 10 ' - 0 " 10 ' - 0 " 2 3.2 4 3.2 3 3.2 1 3.2 CONC. WALL IN FOREGROUND 26 ' - 8 " HIGHEST POINT OF ROOF EL. 253'-8" AVERAGE GRADE LEVEL EL. 227'-0" SOLAR PANELS SHINGLE SIDING, TYP. HORIZ. SIDING HORIZ. SIDING CONC. CONC. CONC. SHINGLE SIDING, TYP. METAL ROOFING, TYP. HORIZ. SIDING STONE VENEER METAL CHIMNEY CAP 2'- 0 " MI N . STONE VENEER CONC. METAL ROOFING, TYP. 11 S3.1 GUARDRAIL 1902 60 2 L o n g v i e w A v e Sheet No. 03/08/24Issue Date: Project No. Or e m u s R e s i d e n c e An a c o r t e s , W A 9 8 2 2 1 No.Date Revision FA X : 4 2 5 - 6 7 9 - 0 8 0 4 PH O N E : 4 2 5 - 6 7 9 - 0 9 0 7 BE L L E V U E , W A 9 8 0 0 4 27 1 0 0 T H A V E N U E N E , S U I T E 1 0 0 PERMIT SET 3.0 EXTERIOR ELEVATIONS MAIN FLOOR EL. 232'-0" EL. 222'-0" LOWER FLOOR MAIN FLOOR EL. 232'-0" EL. 222'-0" LOWER FLOOR 1/4" = 1'-0" EAST ELEVATION 1/4" = 1'-0" NORTH ELEVATION 10 ' - 0 " 10 ' - 0 " 1 3.2 3 3.2 4 3.2 2 3.2 26 ' - 8 " HIGHEST POINT OF ROOF EL. 253'-8" AVERAGE GRADE LEVEL EL. 227'-0" HORIZ. SIDING HORIZ. SIDINGMETAL ROOFING, TYP. METAL ROOFING, TYP. 11 S3.1 GUARDRAIL TYP. 11 S3.1 GUARDRAIL STONE VENEER HORIZ. SIDING HORIZ. SIDING HORIZ. SIDING CONC. CONC. HORIZ. SIDING SHINGLE SIDING, TYP. SHINGLE SIDING, TYP. STONE VENEER STONE VENEER 1902 60 2 L o n g v i e w A v e Sheet No. 03/08/24Issue Date: Project No. Or e m u s R e s i d e n c e An a c o r t e s , W A 9 8 2 2 1 No.Date Revision FA X : 4 2 5 - 6 7 9 - 0 8 0 4 PH O N E : 4 2 5 - 6 7 9 - 0 9 0 7 BE L L E V U E , W A 9 8 0 0 4 27 1 0 0 T H A V E N U E N E , S U I T E 1 0 0 PERMIT SET 3.1 EXTERIOR ELEVATIONS MAIN FLOOR EL. 232'-0" MAIN FLOOR EL. 232'-0" MAIN FLOOR EL. 232'-0" MAIN FLOOR EL. 232'-0" EL. 222'-0" LOWER FLOOR EL. 222'-0" LOWER FLOOR 1/4" = 1'-0" WEST ELEVATION11/4" = 1'-0" EAST ELEVATION3 1/4" = 1'-0" EAST ELEVATION21/4" = 1'-0" WEST ELEVATION4 METAL, STANDING SEAM FACTORY FINISH (COLOR: TBD) WOOD, DF#1 & BETTER, S4S 2X4, TYPICAL, UNO. (REF. DOOR/WINDOW DETAILS)TRIM E X T E R I O R F I N I S H S C H E D U L E MATERIAL FINISH / COLOR REMARKS SOFFITS - ROOF EAVES ROOFING SIDING - SHINGLES FASCIA ENTRY DOOR GARAGE DOOR WOOD DECKING STONE VENEER DOORS / WINDOWS EXPOSED POSTS & BEAMS ALUMINUM CLAD WOOD (PER DOOR/WINDOW SCHEDS.) (PER DOOR SCHED.) (PER DOOR SCHED.) STAINED, CLEAR (COLOR: TBD) DECK RAILING MEMBER SIZES PER FRAMING PLANS SIDING - HORIZONTAL TILE TECH, 24" X 24" DECKING TILES ON PEDESTAL SYSTEMCLEAR SEALER, NATURAL NATURAL 1X6 T&G, FLUSH SIDE OUT, PRE-SAND FINISH FACE SMOOTH (60 GRIT) 2X8, TYPICAL, UNO. (REF. ROOF DETAILS) BBQ METAL ROOFING METAL ROOFING STONE VENEER CONC. HORIZ. SIDING HORIZ. SIDING SHINGLE SIDING, TYP. SHINGLE SIDING SHINGLE SIDING SHINGLE SIDING SHINGLE SIDING 1X6 BEVEL SIDING, 4" EXPOSURE TAYLOR METAL PRODUCTS, VERSA-SPAN, 22 GAUGE, FLAT PAN, 18" O.C. STANDING SEAMS W/ CONCEALED FASTENERS WOOD, WESTERN RED CEDAR, GRADE 'A', CLEAR VERTICAL GRAIN WOOD, WESTERN RED CEDAR, SELECT TIGHT KNOT, S1S2E STAINED, SOLID BODY (COLOR: TBD) WOOD, WESTERN RED CEDAR, CERTIGRADE #2 R&R WOOD, WESTERN RED CEDAR, SELECT TIGHT KNOT WOOD, WESTERN RED CEDAR, SELECT TIGHT KNOT, S1S2E STAINED, SOLID BODY (COLOR: TBD) STAINED, SOLID BODY (COLOR: TBD) STAINED, SOLID BODY (COLOR: TBD) 6" EXPOSURE (18" SHINGLE LENGTH), PARALLEL EDGES, MITERED AT BUILDING CORNERS SOFFITS - DECKS / PATIOS WOOD, WESTERN RED CEDAR, SELECT TIGHT KNOT STAINED, CLEAR (COLOR: TBD) STAINED, SOLID BODY (COLOR: TBD) 1X6 T&G, FLUSH SIDE OUT, PRE-SAND FINISH FACE SMOOTH (60 GRIT) WOOD, IPE STEEL/WOOD W/ STEEL ROD INFILL STEEL - POWDER COATED (COLOR: TBD) WOOD - STAINED (COLOR: TBD) THICKNESS VARIES (3/4" - 114"), LEDGE PATTERN, RAKED JOINTS, PROVIDE 90 DEGREE CORNERS, DIST: MONTANA ROCKWORKS NATURAL THIN STONE, MOOSE MOUNTAIN/CASTLE ROCK MIX 1902 60 2 L o n g v i e w A v e Sheet No. 03/08/24Issue Date: Project No. Or e m u s R e s i d e n c e An a c o r t e s , W A 9 8 2 2 1 No.Date Revision FA X : 4 2 5 - 6 7 9 - 0 8 0 4 PH O N E : 4 2 5 - 6 7 9 - 0 9 0 7 BE L L E V U E , W A 9 8 0 0 4 27 1 0 0 T H A V E N U E N E , S U I T E 1 0 0 PERMIT SET 3.2 EXTERIOR ELEVATIONS PHOTO COURTESY OF ISAC MARTIN PHOTOGRAPHY May 6, 2024 Prepared by: Pacific Surveying and Engineering Services, Inc. 909 Squalicum Way, Suite 111 Bellingham, Washington 98226 (360) 671-7387 www.psesurvey.com Prepared for: Kevin Oremus 4010 Lake Washington Blvd. NE STE 320 Kirkland, WA 98033 Storm Water Management Report OREMUS RESIDENCE CITY OF ANACORTES, SKAGIT COUNTY 05-07-2024 Version Date: May 6, 2024 Storm Water Minimum Requirements #1 to #9 ENGINEERING DEPARTMENT 904 6th Street Anacortes, WA 98221 www.anacorteswa.gov Official Use Only: (Information to Inspectors) Required Storm Water Facility and other related requirements: ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ Project Address: 602 Longview Ave. Anacortes, Wa. Submittal Date: May 6, 2024 Parcel Number: P33244 Revision Number: 1 Permit Number: Acceptance Date (COA): ___________ Reviewer: _______________________ Submittal Checklist: o TAB #1 through #9 - Drainage Analysis – Minimum Requirement #1 to #9 o APPENDIX 1 - Survey performed by a Professional Land Surveyor o APPENDIX 2 - Geotechnical Report 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 o APPENDIX 7 – Western Washington Hydrology Model Reports Project Description: The client is proposing to build a single-family residence at 602 Longview Ave. Anacortes, Wa. This development will include demolition of an existing residence, building construction, stormwater conveyance and associated driveway construction. The project will result in approximately 11,072 sf of new plus replaced hard surface area. Existing Site Conditions Summary: The 0.72 acre site is currently home to a 2 story, approximately 1,175 sf single family residence. There is a 415 sf shed on the property and access to the structures is via a 3,133 sf gravel driveway. There are utilities to the site. It is unclear if there are any stormwater facilities on site. It appears that the current drainage includes downspout splashblocks that infiltrate to the ground. Vegetative cover consists of existing lawn and landscaping. The rectangular shaped subject property is located on the northeastern end of Longview Avenue. The parcel is with in a residential neighborhood as is surrounded by similarly developed, single family properties. The proposed development area gently slopes to the northwest and possesses slope gradients that are less than 15 percent in most areas. The northwestern corner of the property appears to border the top of a 10 to 15 2 Aaron Esterholt Lochner Stormwater Review Version Date: May 6, 2024 foot tall slope with gradients that are greater than 40 percent. The complete geotechnical report prepared by GeoTest Services and is included in Appendix 2. Stormwater runoff is generated in one basin on the site. • Basin 1 – F04: This basin is approximately 771 acres. Stormwater runoff from the development site is collected via an underground conveyance system and infiltrated into the ground. If surface water runoff were to occur, runoff would flow north and eventually be collected in the 38th Street storm sewer system. The 38th Street storm sewer flows to the west towards R Avenue. Stormwater flows north along R Avenue, crosses SR 20 and eventually outfalls to Fidalgo Bay south of the Anacortes Marina. A Pre-Developed Basin Map is included in Appendix 5 that details the existing basin boundaries and existing surface areas within each basin. The following table provides a summary of the pre-developed site pervious and impervious surface areas: Impervious Area (AC) Pervious Area (AC) Total (AC) Basin 1 – F04 0.118 0.601 0.719 TOTAL 0.118 0.601 0.719 Developed Conditions Summary: The developed site will include a single-family residence and associated driveway construction. The proposed improvements occur within the project drainage basin described above. The proposed site conditions are detailed in the Post-Developed Basin Map found in Appendix 5. The following table provides a summary of post-developed site pervious and impervious surface areas: Impervious Area (AC) Pervious Area (AC) Total (AC) Basin 1 – F04 0.260 0.459 0.719 TOTAL 0.260 0.459 0.719 The project site is located in one discharge basin. Basin 1 – F04 drains north in R Avenue and outfalls to Fidalgo Bay. Flow control facilities are not proposed for the project since the threshold discharge basin discharges directly to the saltwater which is considered a flow control exempt water body by the Department of Ecology. Provide the Infiltration Rates found during the rainy season: The geotechnical report prepared by GeoTest Services discusses the site soils and infiltration potential in Section 4.8 Stormwater Considerations. In summary, the geotechnical report concludes the soils on the project site are suitable for the proposed development, provided the recommendations contained are incorporated into the building design. The complete report is included Appendix 2. What was the depth of the ground water table? Groundwater seepage was not encountered within the proposed development area during the investigation on September 30, 2022. See Geotechnical report in Appendix 2. Site Sediment Transport Score: 130 Total Points (High\Low) (See Determining Construction Site Sediment Damage Potential (Appendix 4) Drainage Basin 2007 Storm Comp Plan – Basin F04. The project site lies within Basin F04 as identified by the City Of Anacortes GIS, based on the detailed topographic survey of the site, stormwater runoff from the project area is collected and routed north to Fidalgo Bay. Basin 1 – F04 as defined in the project specific basin maps included in Appendix 5 drains north to Fidalgo Bay. Version Date: May 6, 2024 Complete the Applicability Requirements – Flow Chart (Figure I-2.4.1 Attached) - The flow charts have been highlighted to identify the project requirements. All minimum requirements apply to the new and replaced hard surfaces and the converted vegetation areas. DOE Stormwater Management Manual Minimum Requirements: (MR#1 to MR#9). Refer to the 2019 Department of Ecology Manual for further required information. Version Date: May 6, 2024 Version Date: May 6, 2024 Version Date: May 6, 2024 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. A topographic survey was performed on the site to detail existing topography and provide accurate information related to existing site improvements and utilities. Drainage basin boundaries were identified. A geotechnical Investigation was performed to evaluate onsite soils which determined the site soil conditions are suitable for infiltration. 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. A preliminary development layout was prepared that creates a single family residence, driveway and stormwater improvements. The stormwater plan allows the use of BMP T5.13 in landscaped and disturbed vegetated areas. A stormwater infiltration trench is proposed to meet stormwater management requirements. As proposed, 100% of all stormwater runoff from hard surfaces will fully infiltrate into the ground. 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 ¾ acres of vegetation to lawn or landscape areas or convert 2.5 acres of forested area to pasture. Off-site analysis extends to ¼ mile downstream of the project site. The qualitative analysis was performed that extends more than ¼ mile downstream from the project site. There is a single discharge location from the site, shown with its respective drainage basin limits on the Pre-Developed Basin Map in Appendix 5. ▪ Basin 1 – F04: The property slopes to the north. Due to soil conditions, it is likely that the site generates surface water runoff due to soil conditions. If runoff occurs, stormwater would flow to the City of Anacortes underground stormwater system and is conveyed north approximately 1 mile before discharging into Fidalgo Bay. Version Date: May 6, 2024 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 (Attached) and 2.4.2 (Attached) 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. Minimum requirements 1-9 apply to all the new and replaced hard surfaces and converted vegetated areas as determined in attached Figure 2.4.1. 1-3.1.5 Step 5 - Prepare a Permanent Stormwater Control Plan (Refer to this section of the Ecology Manual for requirements.) A Permanent Stormwater Control Plan was prepared in Accordance with the Ecology Manual that includes the following: ▪ Existing Site Hydrology: The existing site hydrology is discussed previously in the Existing Conditions Summary Section. The site includes one basin that drains north towards R Avenue that eventually outfalls to Fidalgo Bay. A detailed Pre-Developed basin map is included in Appendix 5 for reference. ▪ Developed Site Hydrology: Stormwater runoff from the new and replaced hard surfaces will fully infiltrate into the ground. A Post-developed Basin Exhibit detailing the developed site basin boundaries and land use areas within the basin is included in Appendix 8.5 for reference. Basin 1 – F04: The total area contributing to the basin remains unchanged. A stormwater infiltration trench will be added within improvements to provide stormwater management for new and replaced hard surfaces. 1-3.1.6 Step 6 - Prepare a Construction Stormwater Pollution Prevention Plan (MR#2 – 13 Elements) Refer to Chapter II-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 included with Minimum Requirement No. 2. 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: Version Date: May 6, 2024 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 This Stormwater Site Plan has been prepared in accordance with the Ecology Manual. 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 Stormwater Site Plan has been reviewed and satisfies the requirements listed in the Ecology Manual. Version Date: May 6, 2024 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. - The site is considered a Low Sediment Transport Site, BMP’s in addition to the ones listed in this report may be required. An adaptive management approach shall be applied to implementation of BMP’s throughout the project. Version Date: May 6, 2024 Table 4.1.1 Source Control BMP’s by SWPPP Element Version Date: May 6, 2024 Table 4.2.1 Runoff Conveyance and Treatment BMP’s by SWPPP Element Version Date: May 6, 2024 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 2019 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: Kevin & Donneta Oremus Site Address: 602 Longview Avenue Prepared By: Jeff Vander Yacht, PE. Pacific Surveying and Engineering The Stormwater checklist or building permit determined that: These elements must be addressed for construction activity adding 2,000 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, 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. Clearing limits are clearly detailed on the Temporary Erosion and Sediment Control Plan (TESCP) included in the civil design drawings found in Appendix 5. Silt fence will be installed along the northern boundary of the project site to provide sediment control during construction. The southern, eastern, and western boundaries of the site are defined by an existing wood fence. The project clearing limits will be clearly defined and shown on the plans. The minimum required BMP is: BMP C233: Silt Fence 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. 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. Conduct street washing only after sediment is removed in accordance with the above bullet. Control street wash wastewater by pumping back on site or otherwise preventing it from discharging Version Date: May 6, 2024 into systems tributary to waters of the State. The project site will be accessed via an existing gravel driveway off Longview Avenue. The access location will allow for safe flow of construction traffic to the site. A stabilized construction access shall be constructed on the site at the access locations as shown on the TESCP. The minimum required BMP is: BMP C105: Stabilized Construction Entrance / Exit 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. A temporary construction stormwater infiltration facility is to be constructed as one of the first steps in grading. Assure that the facility functions properly before constructing site improvement (e.g. impervious surfaces). The permanent stormwater infiltration pond shall not used for flow control during construction, protect these facilities from siltation during the construction phase. The need for flow control is not anticipated and no flow control measures are proposed. 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. 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 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. Silt fence will be installed along the north property line to provide sediment control during construction. Storm Drain Inlet Protection will be installed in all proposed catch basins on the site as identified in the TESCP Plan. The minimum required BMP is: BMP C220: Storm Drain Inlet Protection BMP C233: Silt Fence Version Date: May 6, 2024 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. The minimum required BMP’s are: BMP C120: Temporary & Permanent Seeding BMP C121: Mulching BMP C123: Plastic Covering BMP C125: Topsoiling / Composting BMP C140: Dust Control ELEMENT 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). 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. Place check dams at regular intervals within constructed channels that are cut down a slope. Consider soil types and its potential for erosion. Stabilize soils on slopes, as specified in Element 5. Version Date: May 6, 2024 BMP combinations are the most effective method of protecting slopes with disturbed soils. Ex: Use both mulching and straw erosion control blankets. The minimum required BMP’s are: BMP C120: Temporary & Permanent Seeding BMP C121: Mulching BMP C125: Topsoiling / Composting 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. The minimum required BMP is: BMP C220: Storm Drain Inlet Protection 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. The site does not have existing channels or outlets and currently infiltrates into the soil. No outlet protection is required. 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 Version Date: May 6, 2024 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. 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. 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. 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. 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. The minimum required BMP’s are: BMP C151: Concrete handling BMP C152: Sawcutting & Surface Pollution prevention BMP C153: Material Delivery, Storage and containment BMP C154: Concrete Washout Area 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. 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. Version Date: May 6, 2024 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. No groundwater was encountered in the soils investigation. As a result, dewatering is not anticipated on this project. 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. 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 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. BMP’s will be maintained and inspected daily by the contractor / property owner. All BMP’s requiring maintenance will be fixed immediately and noted on the SWPPP. The minimum required BMP’s are: BMP C150: Materials on Hand BMP C160: Certified Erosion & Sediment Control Lead 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. 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: 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. 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 Version Date: May 6, 2024 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. The minimum required BMP’s are: BMP C150: Materials on hand BMP C160: Certified Erosion & Sediment Control Lead BMP C162: Scheduling 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. Runoff from disturbed areas on the site shall not be directed to the infiltration system until the surfaces directed to the infiltration area are fully stabilized. If silt laden runoff enters the infiltration system, the soils will become plugged and the infiltration system could fail prematurely. A note has been added to the construction drawings indicating that the catch basins and infiltration area shall be protected from silt until the site has achieved full stabilization. ___________________________________________ _____________________ Applicant Signature Date Version Date: May 6, 2024 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 following construction site source control BMP’s have been selected as requirements on this project: The minimum required BMP’s are: o BMP C105: Stabilized Construction Entrance / Exit o BMP C120: Temporary & Permanent Seeding o BMP C121: Mulching o BMP C125: Topsoiling / Composting o BMP C140: Dust Control o BMP C151: Concrete handling Additional required source control BMP’s for the project site are listed in Volume 4, Section 2.1 of the Ecology Manual, “Applicable (Mandatory) Operational Source Control BMP’s.” Upon completion of construction the following pollutant source control BMPs are recommended for implementation associated with the management and maintenance of the development, obtained from the Ecology Manual, Volume 4: o S410: BMP’s for Illicit Connections to Storm Drains o S411: BMP’s for Landscaping and Lawn / Vegetation Management o S417: BMP’s for Maintenance of Stormwater Drainage and Treatment Systems Version Date: May 6, 2024 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. The natural drainage systems and outfalls on the project site have been maintained. All runoff from the site is directed to an infiltration trench. Runoff is anticipated to fully infiltrate into the on-site native soils. See the WWHM model reports in Appendix 8. Version Date: May 6, 2024 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 (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). If surface water runoff occurs, which is unlikely, the runoff from the project site will be conveyed through manmade conveyance elements from the site directly to Fidalgo Bay, an exempt receiving water. Per Figure I-2.5.1 Flow Chart for Determining LID MR #5 Requirements, the following BMP’s should be implemented when feasible: o BMP T5.13: Post Construction Soil Quality and depth o BMP T5.10A, B, or C: Downspout Full Infiltration, Downspout Dispersion, or Perforated Stub- out Connections Although an infiltration facility is proposed, it is not required to achieve the LID Performance Standard or to apply other BMP’s in List #1 and list #2. The following summarizes BMP’s: 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. Feasibility shall be determined by evaluation against: 1. Design criteria, limitations and infeasibility 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) 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 below for the “Model Soil Management Plan for BMP T5.13” to be submitted with Drainage Report and Application Material. The contractor shall submit a test report from a soils supplier that identifies the soils meet the specifications established by Department of Ecology. Version Date: May 6, 2024 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) ___ 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 AREA # (should match Area # on Site Plan) PLANTING TYPE ___ Turf ___ Undisturbed native vegetation ___ Planting Beds ___ Other: _______________________________ SQUARE FOOTAGE OF THIS AREA: _______ square feet SCARIFICATION ___ Subsoil will be scarified ___ inches (depth) of scarification needed to achieve finished total 12” loosened depth. PRE-APPROVED AMENDMENT METHOD: ___ Topsoil import ___ Amend with compost ___ Stockpile and amend ( ____ cu. yds. stockpiled) ____inches of compost or imported topsoil applied X 3.1 (conversion factor, inches to cubic yards) _____= cu. yards per 1,000 sq. ft. X ___ ,000s sq.ft. in this area ____ = cubic yards of amendment → → → → → (needed to cover this area to designated depth) PRODUCT:_________________________ __________________________________ QUANTITY:________CU. YDS. CUSTOM AMENDMENT ___ Topsoil import ___ Topsoil & compost lift ___ Amend ___ Stockpile and amend (____ cu. yds. stockpiled) Attach test results and calculations. ____ inches organic matter or topsoil import X 3.1 _____= cu. yards / 1,000 sq. ft. X ___ ,000s sq.ft. in this area ____ = cubic yards of amendment → → → → → PRODUCT:_________________________ __________________________________ QUANTITY:________CU. YDS. MULCH ___ ,000 sq.ft. X 6.2 (conversion, to give 2 inch mulch depth) ____ = cubic yards of mulch → → → → → → PRODUCT:_________________________ 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: Date: Inspector: Approved: Revisions Required: Version Date: May 6, 2024 Roofs: (Provide feasible detail and maintenance and operations specifications in the report) 1. BMP T5.10A: Downspout Full Infiltration System Feasible\Infeasible If infeasible, explain the criteria: The geotechnical report prepared by GeoTest discusses the site soils and infiltration potential in Section 4.8 Stormwater Considerations. In summary, the geotechnical report concludes the soils on the project site are suitable for infiltration based on the conditions encountered in the soil explorations and the guidance for infiltration facilities provided in the Washington State Department of Ecology’s Stormwater Management Manual for Western Washington (DOE Manual). An infiltration system is proposed. Other Hard Surfaces: (Provide feasible detail and maintenance and operations specifications in the report) 1. BMP T5.12 Sheet Flow Dispersion or BMP T5.11: Concentrated Flow Dispersion Feasible\Infeasible. If infeasible, explain the criteria: The geotechnical report prepared by GeoTest discusses the site soils and infiltration potential in Section 4.8 Stormwater Considerations. In summary, the geotechnical report concludes the soils on the project site are suitable for infiltration based on the conditions encountered in the soil explorations and the guidance for infiltration facilities provided in the Washington State Department of Ecology’s Stormwater Management Manual for Western Washington (DOE Manual). An infiltration system is proposed. If all BMP’s have been declared infeasible to the project site, then the site is subject to Adjustments (Section 5) and Exceptions/Variances (Section 6) per the City’s Phase II Municipal Stormwater Permit and the Anacortes Municipal Code, Section 19.76.040 – Stormwater Management Manual, Item G – Adjustments and Exceptions. The review type is considered a Type 2 – Administrative Decision, requiring a 14-day comment period, per Table 19.20.030-1 – Review Classification and Process Matrix. See attached document. ___________________________________________ _____________________ Applicant Signature Date City of Anacortes Engineering Department Attention: Steven Lange 904 6th Street Anacortes, WA 98221 www.anacorteswa.gov Version Date: May 6, 2024 Request for Adjustments and Exceptions/Variance To the Stormwater Management Manual If all BMP’s have been declared infeasible to the project site, then the site is subject to Adjustments (Section 5) and Exceptions/Variances (Section 6) per the City’s Phase II Municipal Stormwater Permit and the Anacortes Municipal Code, Section 19.76.040 – Stormwater Management Manual, Item G – Adjustments and Exceptions. The review type is considered a Type 2 – Administrative Decision, requiring a 14-day comment period, per Table 19.20.030-1 – Review Classification and Process Matrix. The application will be considered a written request that covers the specifics below, as well as any additional information requested by the Planning Director. The deviation describes the process for exception to the Nine Minimum Requirements of the City of Anacortes Stormwater Management Manual. These requirements area as follows: Minimum Requirement 1 – Stormwater Site Plan Minimum Requirement 2 – Construction Stormwater Pollution Prevention Plan Minimum Requirement 3 – Source Control of Pollution Minimum Requirement 4 – Preservation of Natural Drainage Systems Minimum Requirement 5 – On-site Stormwater Management Minimum Requirement 6 – Runoff Treatment Minimum Requirement 7 – Flow Control Minimum Requirement 8 – Wetland Protection Minimum Requirement 9 – Operation and Maintenance Adjustments: Adjustments to the Minimum Requirements may be granted by the Planning Director provided that a written finding of fact is prepared that addresses the following: The adjustment provides substantially equivalent environmental protection. Based on sound Engineering practices, the objective of safety, function environmental protection and facility maintenance, are met. Exception/Variances Exceptions/variances (Exceptions) to the Minimum Requirements may be granted by the Planning Director following a legal public notice of an application for an exception or variance, legal public notice of the Planning Director’s decision on the application and written findings of fact that documents the Planning Director’s determination to grant an exception. The Planning Director shall keep records, including the written finding of fact of all local exceptions to the Minimum Requirements. Project specific design exceptions based on site specific conditions do not require prior approval of Ecology. The Planning Director must see, prior approval by Ecology for any jurisdiction wide exception. The Planning Director may grant an exception to the Minimum Requirements if such application imposes a severe and unexpected economic hardship. To determine whether the application imposes a severe and unexpected economic hardship on the project applicant, the Planning Director must consider and document with written findings of fact the following: • The current (pre-project) use of the site, and • How the application of the Minimum Requirement(s) restricts the proposed use of the site compared to the restrictions that existed prior to the adoption of the Minimum Requirement; and Version Date: May 6, 2024 • The possible remaining uses of the site if the exception were not granted; and • The uses of the site that would have been allowed prior to the adoption of the Minimum Requirements; and • A comparison of the estimated amount and percentage of value loss as a result of the Minimum Requirements versus the estimated amount and percentage of value loss as a result of requirements that existed prior to adoption of the Minimum Requirements; and • The feasibility for the owner to alter the project to apply the Minimum Requirements. In addition, any exception must meet the following criteria: • The exception will not increase risk to the public health and welfare, nor be injurious to other properties in the vicinity and/or downstream, and to the quality of water of the state; and • The exception is the least possible exception that could be granted to comply with the intent of the Minimum Requirements. Version Date: May 6, 2024 TAB 6 – (MINUMUM REQUIREMENT 6 - RUNOFF TREATMENT) The project does not create more than 5,000 square feet of new/replaced pollution generating hard surfaces. Therefore, treatment requirements for runoff generated from pollution generating impervious surface areas is not required. Version Date: May 6, 2024 TAB 7 – (MINUMUM REQUIREMENT 7 – FLOW CONTROL) The project plans to fully infiltrate all runoff from new/replaced hard surfaces. As a result, flow control is met with this project. Version Date: May 6, 2024 TAB 8 – (MINUMUM REQUIREMENT 8 – WETLAND PROTECTION) There are no wetlands affected by this project, wetland protection does not apply. Version Date: May 6, 2024 TAB 9 – (MINUMUM REQUIREMENT 9 – OPERATION AND MAINTENANCE) Attached to this section are the Ecology Maintenance standards and for maintenance of stormwater systems incorporated into this project. The attached maintenance guidelines cover the following onsite elements: • Infiltration Trench • Catch Basins The above listed elements shall be inspected and maintained in accordance with the attached documents by the facility owners. The project is required to record a Drainage BMP Facilities Maintenance Covenant for the Permanent Storm Water Facilities. These maintenance and operations documents shall be included in the recorded document. The City of Anacortes Public Works Engineering Department will draft agreement prior to recording. Version Date: May 6, 2024 APPENDIX 1 – Survey performed by a Professional Land Surveyor %8 6 + 5 2 ( ' + , 7 & + , 1 * 6 , 1 & 0 , 1 2 5 $ 9 ( ( $ 6 7 6( $ 7 7 / ( : D V K L Q J W R Q /$ 1 ' 6 8 5 9 ( < 2 5 6 & , 9 , / ( 1 * , 1 ( ( 5 6 )$ ; %2 8 1 ' $ 5 < 7 2 3 2 * 5 $ 3 + , & 6 8 5 9 ( < / 2 1 * 9 , ( : $ 9 ( .( 9 , 1 2 5 ( 0 8 6 &,7 < 2 ) $ 1 $ & 2 5 7 ( 6 6 . $ * , 7 & 2 8 1 7 < :$ 6 + , 1 * 7 2 1 6:6(&7:315*(( Version Date: May 6, 2024 APPENDIX 2 – Geotechnical Report Version Date: May 6, 2024 APPENDIX 3 – Model Soil Management Plan for BMP T5.13 Note: See plans for BMP T5.13 details and specifications. Version Date: May 6, 2024 APPENDIX 4 – Determining Construction Site Sediment Damage Potential (Appendix 7 – NPDES Phase II Permit) Note: See attached Version Date: May 6, 2024 Western Washington Phase II Stormwater Permit i. 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. ii. 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. iii. 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 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: iv. Sheet flow through a vegetated area with dense ground cover v. Flow through a wetland not included as a sensitive feature vi. 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. vii. 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. 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 B. Site Area to be cleared and/or graded: <5,000 sq. ft ................................................................................... 0 5,000 sq. ft. – 1 acre .................................................................... 30 >1 acres ....................................................................................... 50 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............................................................................................. 130 1 If no surface or groundwater enters site, give 0 points. APPENDIX 5 – Site Plan with all applicable information (Minimum Size 11x17 at a legible scale) Exhibits Include: • Civil Design Plans Including TESC Plan • Pre-Developed Basin Map • Post-Developed Basin Map In addition to the attached 11x17 exhibits, full size civil design drawings will be concurrently submitted for review. SPINK'S A D D I T I O N T O PARCEL A APPROXLIMATE LOCATION OF PARCEL B EXISTING BASIN 300 6015 G R A P H I C S C A L E ( U S S U R V E Y F E E T )PACIFIC SURVEYING & ENGINEERING, INC. 909 Squalicum Way, Suite 111 | BELLINGHAM, WA 98225 T: 360.671.7387 | F: 360.671.4685 WWW.PSESURVEY.COM | INFO@PSESURVEY.COM EXISTING BASIN MAP POST - DEVELOPED BASIN 300 6015 G R A P H I C S C A L E ( U S S U R V E Y F E E T )PACIFIC SURVEYING & ENGINEERING, INC. 909 Squalicum Way, Suite 111 | BELLINGHAM, WA 98225 T: 360.671.7387 | F: 360.671.4685 WWW.PSESURVEY.COM | INFO@PSESURVEY.COM PROPOSED BASIN MAP APPENDIX 6 – Documented Site Photos Image 1: East end of Longview Avenue, looking Northeast at subject property driveway Image 2: East end of Longview Avenue, looking Northeast APPENDIX 7 – WWHM Reports The following reports are included in the appendix: Infiltration System Sizing Calculations WWHM2012 PROJECT REPORT Oremus_Infiltration_4-17-24 5/6/2024 1:49:26 PM Page 2 General Model Information Project Name:Oremus_Infiltration_4-17-24 Site Name:Oremus Residence Site Address:602 Longview Avenue City:Anacortes Report Date:5/6/2024 Gage:Burlington Data Start:1948/10/01 Data End:2009/09/30 Timestep:15 Minute Precip Scale:0.833 Version Date:2021/08/18 Version:4.2.18 POC Thresholds Low Flow Threshold for POC1:50 Percent of the 2 Year High Flow Threshold for POC1:50 Year Oremus_Infiltration_4-17-24 5/6/2024 1:49:26 PM Page 3 Landuse Basin Data Predeveloped Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre C, Lawn, Mod 0.41 Pervious Total 0.41 Impervious Land Use acre ROOF TOPS FLAT 0.05 DRIVEWAYS MOD 0.07 Impervious Total 0.12 Basin Total 0.53 Element Flows To: Surface Interflow Groundwater Oremus_Infiltration_4-17-24 5/6/2024 1:49:26 PM Page 4 Mitigated Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROADS MOD 0.09 ROOF TOPS FLAT 0.17 Impervious Total 0.26 Basin Total 0.26 Element Flows To: Surface Interflow Groundwater Gravel Trench Bed 1 Gravel Trench Bed 1 Oremus_Infiltration_4-17-24 5/6/2024 1:49:26 PM Page 5 Basin 2 Bypass:Yes GroundWater:No Pervious Land Use acre C, Lawn, Mod 0.28 Pervious Total 0.28 Impervious Land Use acre Impervious Total 0 Basin Total 0.28 Element Flows To: Surface Interflow Groundwater Oremus_Infiltration_4-17-24 5/6/2024 1:49:26 PM Page 6 Routing Elements Predeveloped Routing Oremus_Infiltration_4-17-24 5/6/2024 1:49:26 PM Page 7 Mitigated Routing Gravel Trench Bed 1 Bottom Length:75.00 ft. Bottom Width:13.50 ft. Trench bottom slope 1:0 To 1 Trench Left side slope 0:0 To 1 Trench right side slope 2:0 To 1 Material thickness of first layer:4 Pour Space of material for first layer:0.33 Material thickness of second layer:0 Pour Space of material for second layer:0 Material thickness of third layer:0 Pour Space of material for third layer:0 Infiltration On Infiltration rate:1.9 Infiltration safety factor:1 Wetted surface area On Total Volume Infiltrated (ac-ft.):28.053 Total Volume Through Riser (ac-ft.):0 Total Volume Through Facility (ac-ft.):28.053 Percent Infiltrated:100 Total Precip Applied to Facility:0 Total Evap From Facility:0 Discharge Structure Riser Height:4 ft. Riser Diameter:10 in. Element Flows To: Outlet 1 Outlet 2 Gravel Trench Bed Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.023 0.000 0.000 0.000 0.0556 0.023 0.000 0.000 0.044 0.1111 0.023 0.000 0.000 0.044 0.1667 0.023 0.001 0.000 0.044 0.2222 0.023 0.001 0.000 0.044 0.2778 0.023 0.002 0.000 0.044 0.3333 0.023 0.002 0.000 0.044 0.3889 0.023 0.003 0.000 0.044 0.4444 0.023 0.003 0.000 0.044 0.5000 0.023 0.003 0.000 0.044 0.5556 0.023 0.004 0.000 0.044 0.6111 0.023 0.004 0.000 0.044 0.6667 0.023 0.005 0.000 0.044 0.7222 0.023 0.005 0.000 0.044 0.7778 0.023 0.006 0.000 0.044 0.8333 0.023 0.006 0.000 0.044 0.8889 0.023 0.006 0.000 0.044 0.9444 0.023 0.007 0.000 0.044 1.0000 0.023 0.007 0.000 0.044 1.0556 0.023 0.008 0.000 0.044 1.1111 0.023 0.008 0.000 0.044 1.1667 0.023 0.008 0.000 0.044 1.2222 0.023 0.009 0.000 0.044 Oremus_Infiltration_4-17-24 5/6/2024 1:49:26 PM Page 8 1.2778 0.023 0.009 0.000 0.044 1.3333 0.023 0.010 0.000 0.044 1.3889 0.023 0.010 0.000 0.044 1.4444 0.023 0.011 0.000 0.044 1.5000 0.023 0.011 0.000 0.044 1.5556 0.023 0.011 0.000 0.044 1.6111 0.023 0.012 0.000 0.044 1.6667 0.023 0.012 0.000 0.044 1.7222 0.023 0.013 0.000 0.044 1.7778 0.023 0.013 0.000 0.044 1.8333 0.023 0.014 0.000 0.044 1.8889 0.023 0.014 0.000 0.044 1.9444 0.023 0.014 0.000 0.044 2.0000 0.023 0.015 0.000 0.044 2.0556 0.023 0.015 0.000 0.044 2.1111 0.023 0.016 0.000 0.044 2.1667 0.023 0.016 0.000 0.044 2.2222 0.023 0.017 0.000 0.044 2.2778 0.023 0.017 0.000 0.044 2.3333 0.023 0.017 0.000 0.044 2.3889 0.023 0.018 0.000 0.044 2.4444 0.023 0.018 0.000 0.044 2.5000 0.023 0.019 0.000 0.044 2.5556 0.023 0.019 0.000 0.044 2.6111 0.023 0.020 0.000 0.044 2.6667 0.023 0.020 0.000 0.044 2.7222 0.023 0.020 0.000 0.044 2.7778 0.023 0.021 0.000 0.044 2.8333 0.023 0.021 0.000 0.044 2.8889 0.023 0.022 0.000 0.044 2.9444 0.023 0.022 0.000 0.044 3.0000 0.023 0.023 0.000 0.044 3.0556 0.023 0.023 0.000 0.044 3.1111 0.023 0.023 0.000 0.044 3.1667 0.023 0.024 0.000 0.044 3.2222 0.023 0.024 0.000 0.044 3.2778 0.023 0.025 0.000 0.044 3.3333 0.023 0.025 0.000 0.044 3.3889 0.023 0.026 0.000 0.044 3.4444 0.023 0.026 0.000 0.044 3.5000 0.023 0.026 0.000 0.044 3.5556 0.023 0.027 0.000 0.044 3.6111 0.023 0.027 0.000 0.044 3.6667 0.023 0.028 0.000 0.044 3.7222 0.023 0.028 0.000 0.044 3.7778 0.023 0.029 0.000 0.044 3.8333 0.023 0.029 0.000 0.044 3.8889 0.023 0.029 0.000 0.044 3.9444 0.023 0.030 0.000 0.044 4.0000 0.023 0.030 0.000 0.044 4.0556 0.023 0.032 0.115 0.044 4.1111 0.023 0.033 0.323 0.044 4.1667 0.023 0.034 0.575 0.044 4.2222 0.023 0.035 0.835 0.044 4.2778 0.023 0.037 1.067 0.044 4.3333 0.023 0.038 1.242 0.044 4.3889 0.023 0.039 1.355 0.044 4.4444 0.023 0.041 1.458 0.044 Oremus_Infiltration_4-17-24 5/6/2024 1:49:26 PM Page 9 4.5000 0.023 0.042 1.546 0.044 4.5556 0.023 0.043 1.630 0.044 4.6111 0.023 0.044 1.709 0.044 4.6667 0.023 0.046 1.785 0.044 4.7222 0.023 0.047 1.858 0.044 4.7778 0.023 0.048 1.929 0.044 4.8333 0.023 0.050 1.996 0.044 4.8889 0.023 0.051 2.062 0.044 4.9444 0.023 0.052 2.125 0.044 5.0000 0.023 0.053 2.187 0.044 Oremus_Infiltration_4-17-24 5/6/2024 1:49:26 PM Page 10 Analysis Results POC 1 + Predeveloped x Mitigated Predeveloped Landuse Totals for POC #1 Total Pervious Area:0.41 Total Impervious Area:0.12 Mitigated Landuse Totals for POC #1 Total Pervious Area:0.28 Total Impervious Area:0.26 Flow Frequency Method:Log Pearson Type III 17B Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.063791 5 year 0.102701 10 year 0.134515 25 year 0.18231 50 year 0.223894 100 year 0.271006 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0.014153 5 year 0.030334 10 year 0.045184 25 year 0.069109 50 year 0.09094 100 year 0.11641 Annual Peaks Annual Peaks for Predeveloped and Mitigated. POC #1 Year Predeveloped Mitigated 1949 0.135 0.048 1950 0.041 0.011 1951 0.132 0.047 1952 0.111 0.032 1953 0.128 0.037 1954 0.072 0.026 1955 0.037 0.007 1956 0.028 0.006 1957 0.135 0.039 1958 0.057 0.016 Oremus_Infiltration_4-17-24 5/6/2024 1:49:58 PM Page 11 1959 0.053 0.009 1960 0.079 0.021 1961 0.050 0.013 1962 0.057 0.004 1963 0.054 0.016 1964 0.041 0.007 1965 0.134 0.022 1966 0.046 0.006 1967 0.075 0.009 1968 0.090 0.020 1969 0.052 0.011 1970 0.134 0.042 1971 0.084 0.028 1972 0.033 0.006 1973 0.061 0.012 1974 0.055 0.016 1975 0.185 0.083 1976 0.170 0.061 1977 0.050 0.009 1978 0.072 0.014 1979 0.057 0.011 1980 0.079 0.023 1981 0.048 0.009 1982 0.058 0.018 1983 0.064 0.017 1984 0.081 0.033 1985 0.060 0.004 1986 0.041 0.008 1987 0.041 0.010 1988 0.132 0.048 1989 0.047 0.005 1990 0.071 0.022 1991 0.097 0.033 1992 0.055 0.008 1993 0.033 0.007 1994 0.031 0.003 1995 0.030 0.004 1996 0.125 0.043 1997 0.299 0.124 1998 0.044 0.011 1999 0.027 0.005 2000 0.060 0.006 2001 0.042 0.001 2002 0.030 0.006 2003 0.038 0.005 2004 0.222 0.044 2005 0.057 0.006 2006 0.088 0.028 2007 0.064 0.015 2008 0.066 0.026 2009 0.080 0.021 Ranked Annual Peaks Ranked Annual Peaks for Predeveloped and Mitigated. POC #1 Rank Predeveloped Mitigated 1 0.2990 0.1244 2 0.2216 0.0829 3 0.1852 0.0611 Oremus_Infiltration_4-17-24 5/6/2024 1:49:58 PM Page 12 4 0.1697 0.0482 5 0.1354 0.0479 6 0.1348 0.0474 7 0.1344 0.0435 8 0.1337 0.0435 9 0.1322 0.0423 10 0.1321 0.0394 11 0.1276 0.0370 12 0.1253 0.0334 13 0.1111 0.0326 14 0.0971 0.0320 15 0.0896 0.0277 16 0.0882 0.0277 17 0.0836 0.0261 18 0.0807 0.0259 19 0.0803 0.0231 20 0.0795 0.0222 21 0.0792 0.0216 22 0.0747 0.0215 23 0.0721 0.0212 24 0.0716 0.0201 25 0.0709 0.0176 26 0.0657 0.0167 27 0.0643 0.0164 28 0.0642 0.0160 29 0.0613 0.0159 30 0.0600 0.0154 31 0.0595 0.0137 32 0.0585 0.0126 33 0.0575 0.0117 34 0.0573 0.0112 35 0.0570 0.0111 36 0.0565 0.0111 37 0.0553 0.0107 38 0.0552 0.0095 39 0.0544 0.0095 40 0.0530 0.0094 41 0.0520 0.0093 42 0.0498 0.0086 43 0.0495 0.0085 44 0.0484 0.0077 45 0.0469 0.0073 46 0.0459 0.0067 47 0.0441 0.0067 48 0.0418 0.0062 49 0.0415 0.0062 50 0.0414 0.0059 51 0.0406 0.0059 52 0.0405 0.0057 53 0.0380 0.0057 54 0.0365 0.0054 55 0.0335 0.0052 56 0.0332 0.0051 57 0.0307 0.0042 58 0.0305 0.0038 59 0.0296 0.0035 60 0.0279 0.0026 61 0.0270 0.0014 Oremus_Infiltration_4-17-24 5/6/2024 1:49:58 PM Page 13 Oremus_Infiltration_4-17-24 5/6/2024 1:49:58 PM Page 14 Duration Flows The Facility PASSED Flow(cfs)Predev Mit Percentage Pass/Fail 0.0319 723 38 5 Pass 0.0338 577 33 5 Pass 0.0358 473 32 6 Pass 0.0377 391 27 6 Pass 0.0397 333 21 6 Pass 0.0416 273 20 7 Pass 0.0435 242 18 7 Pass 0.0455 215 15 6 Pass 0.0474 192 11 5 Pass 0.0493 174 8 4 Pass 0.0513 161 7 4 Pass 0.0532 143 5 3 Pass 0.0552 130 5 3 Pass 0.0571 116 5 4 Pass 0.0590 101 5 4 Pass 0.0610 94 5 5 Pass 0.0629 86 4 4 Pass 0.0649 79 3 3 Pass 0.0668 75 3 4 Pass 0.0687 73 3 4 Pass 0.0707 71 3 4 Pass 0.0726 66 3 4 Pass 0.0746 63 3 4 Pass 0.0765 59 3 5 Pass 0.0784 56 3 5 Pass 0.0804 50 3 6 Pass 0.0823 49 3 6 Pass 0.0843 46 2 4 Pass 0.0862 46 2 4 Pass 0.0881 45 2 4 Pass 0.0901 41 2 4 Pass 0.0920 40 2 5 Pass 0.0940 40 2 5 Pass 0.0959 38 2 5 Pass 0.0978 35 2 5 Pass 0.0998 33 2 6 Pass 0.1017 31 2 6 Pass 0.1037 29 2 6 Pass 0.1056 29 2 6 Pass 0.1075 27 2 7 Pass 0.1095 27 2 7 Pass 0.1114 25 2 8 Pass 0.1133 25 2 8 Pass 0.1153 23 2 8 Pass 0.1172 22 2 9 Pass 0.1192 19 2 10 Pass 0.1211 18 1 5 Pass 0.1230 18 1 5 Pass 0.1250 17 0 0 Pass 0.1269 14 0 0 Pass 0.1289 13 0 0 Pass 0.1308 13 0 0 Pass 0.1327 11 0 0 Pass Oremus_Infiltration_4-17-24 5/6/2024 1:49:58 PM Page 15 0.1347 9 0 0 Pass 0.1366 7 0 0 Pass 0.1386 6 0 0 Pass 0.1405 6 0 0 Pass 0.1424 6 0 0 Pass 0.1444 6 0 0 Pass 0.1463 6 0 0 Pass 0.1483 6 0 0 Pass 0.1502 6 0 0 Pass 0.1521 5 0 0 Pass 0.1541 5 0 0 Pass 0.1560 5 0 0 Pass 0.1580 5 0 0 Pass 0.1599 5 0 0 Pass 0.1618 5 0 0 Pass 0.1638 5 0 0 Pass 0.1657 5 0 0 Pass 0.1677 5 0 0 Pass 0.1696 5 0 0 Pass 0.1715 4 0 0 Pass 0.1735 4 0 0 Pass 0.1754 4 0 0 Pass 0.1773 4 0 0 Pass 0.1793 4 0 0 Pass 0.1812 4 0 0 Pass 0.1832 4 0 0 Pass 0.1851 4 0 0 Pass 0.1870 3 0 0 Pass 0.1890 3 0 0 Pass 0.1909 3 0 0 Pass 0.1929 3 0 0 Pass 0.1948 3 0 0 Pass 0.1967 3 0 0 Pass 0.1987 3 0 0 Pass 0.2006 3 0 0 Pass 0.2026 3 0 0 Pass 0.2045 3 0 0 Pass 0.2064 3 0 0 Pass 0.2084 3 0 0 Pass 0.2103 3 0 0 Pass 0.2123 3 0 0 Pass 0.2142 3 0 0 Pass 0.2161 3 0 0 Pass 0.2181 3 0 0 Pass 0.2200 3 0 0 Pass 0.2220 2 0 0 Pass 0.2239 2 0 0 Pass Oremus_Infiltration_4-17-24 5/6/2024 1:49:58 PM Page 16 Water Quality Water Quality BMP Flow and Volume for POC #1 On-line facility volume:0 acre-feet On-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. Off-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. Oremus_Infiltration_4-17-24 5/6/2024 1:49:58 PM Page 17 LID Report Oremus_Infiltration_4-17-24 5/6/2024 1:50:20 PM Page 18 Model Default Modifications Total of 0 changes have been made. PERLND Changes No PERLND changes have been made. IMPLND Changes No IMPLND changes have been made. Oremus_Infiltration_4-17-24 5/6/2024 1:50:20 PM Page 19 Appendix Predeveloped Schematic Oremus_Infiltration_4-17-24 5/6/2024 1:50:21 PM Page 20 Mitigated Schematic Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 21 Predeveloped UCI File RUN GLOBAL WWHM4 model simulation START 1948 10 01 END 2009 09 30 RUN INTERP OUTPUT LEVEL 3 0 RESUME 0 RUN 1 UNIT SYSTEM 1 END GLOBAL FILES <File> <Un#> <-----------File Name------------------------------>*** <-ID-> *** WDM 26 Oremus_Infiltration_4-17-24.wdm MESSU 25 PreOremus_Infiltration_4-17-24.MES 27 PreOremus_Infiltration_4-17-24.L61 28 PreOremus_Infiltration_4-17-24.L62 30 POCOremus_Infiltration_4-17-241.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 PERLND 17 IMPLND 4 IMPLND 6 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Basin 1 MAX 1 2 30 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 END TIMESERIES END COPY GENER OPCODE # # OPCD *** END OPCODE PARM # # K *** END PARM END GENER PERLND GEN-INFO <PLS ><-------Name------->NBLKS Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 17 C, Lawn, Mod 1 1 1 1 27 0 END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** 17 0 0 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* 17 0 0 4 0 0 0 0 0 0 0 0 0 1 9 Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 22 END PRINT-INFO PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 17 0 0 0 0 0 0 0 0 0 0 0 END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC 17 0 4.5 0.03 400 0.1 0.5 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 17 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 17 0.1 0.25 0.25 6 0.5 0.25 END PWAT-PARM4 PWAT-STATE1 <PLS > *** Initial conditions at start of simulation ran from 1990 to end of 1992 (pat 1-11-95) RUN 21 *** # - # *** CEPS SURS UZS IFWS LZS AGWS GWVS 17 0 0 0 0 2.5 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO <PLS ><-------Name-------> Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 4 ROOF TOPS/FLAT 1 1 1 27 0 6 DRIVEWAYS/MOD 1 1 1 27 0 END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** 4 0 0 1 0 0 0 6 0 0 1 0 0 0 END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* 4 0 0 4 0 0 0 1 9 6 0 0 4 0 0 0 1 9 END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** 4 0 0 0 0 0 6 0 0 0 0 0 END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC 4 400 0.01 0.1 0.1 6 400 0.05 0.1 0.08 Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 23 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 4 0 0 6 0 0 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 4 0 0 6 0 0 END IWAT-STATE1 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** PERLND 17 0.41 COPY 501 12 PERLND 17 0.41 COPY 501 13 IMPLND 4 0.05 COPY 501 15 IMPLND 6 0.07 COPY 501 15 ******Routing****** END SCHEMATIC NETWORK <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** COPY 501 OUTPUT MEAN 1 1 48.4 DISPLY 1 INPUT TIMSER 1 <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** END NETWORK RCHRES GEN-INFO RCHRES Name Nexits Unit Systems Printer *** # - #<------------------><---> User T-series Engl Metr LKFG *** in out *** END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* END PRINT-INFO HYDR-PARM1 RCHRES Flags for each HYDR Section *** # - # VC A1 A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each FG FG FG FG possible exit *** possible exit possible exit * * * * * * * * * * * * * * *** END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** <------><--------><--------><--------><--------><--------><--------> *** END HYDR-PARM2 Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 24 HYDR-INIT RCHRES Initial conditions for each HYDR section *** # - # *** VOL Initial value of COLIND Initial value of OUTDGT *** ac-ft for each possible exit for each possible exit <------><--------> <---><---><---><---><---> *** <---><---><---><---><---> END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS FTABLES END FTABLES EXT SOURCES <-Volume-> <Member> SsysSgap<--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # tem strg<-factor->strg <Name> # # <Name> # # *** WDM 2 PREC ENGL 0.833 PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 0.833 IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** COPY 501 OUTPUT MEAN 1 1 48.4 WDM 501 FLOW ENGL REPL END EXT TARGETS MASS-LINK <Volume> <-Grp> <-Member-><--Mult--> <Target> <-Grp> <-Member->*** <Name> <Name> # #<-factor-> <Name> <Name> # #*** MASS-LINK 12 PERLND PWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 12 MASS-LINK 13 PERLND PWATER IFWO 0.083333 COPY INPUT MEAN END MASS-LINK 13 MASS-LINK 15 IMPLND IWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 15 END MASS-LINK END RUN Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 25 Mitigated UCI File RUN GLOBAL WWHM4 model simulation START 1948 10 01 END 2009 09 30 RUN INTERP OUTPUT LEVEL 3 0 RESUME 0 RUN 1 UNIT SYSTEM 1 END GLOBAL FILES <File> <Un#> <-----------File Name------------------------------>*** <-ID-> *** WDM 26 Oremus_Infiltration_4-17-24.wdm MESSU 25 MitOremus_Infiltration_4-17-24.MES 27 MitOremus_Infiltration_4-17-24.L61 28 MitOremus_Infiltration_4-17-24.L62 30 POCOremus_Infiltration_4-17-241.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 IMPLND 2 IMPLND 4 PERLND 17 RCHRES 1 COPY 1 COPY 501 COPY 601 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Gravel Trench Bed 1 MAX 1 2 30 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 601 1 1 END TIMESERIES END COPY GENER OPCODE # # OPCD *** END OPCODE PARM # # K *** END PARM END GENER PERLND GEN-INFO <PLS ><-------Name------->NBLKS Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 17 C, Lawn, Mod 1 1 1 1 27 0 END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** 17 0 0 1 0 0 0 0 0 0 0 0 0 END ACTIVITY Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 26 PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* 17 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 17 0 0 0 0 0 0 0 0 0 0 0 END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC 17 0 4.5 0.03 400 0.1 0.5 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 17 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 17 0.1 0.25 0.25 6 0.5 0.25 END PWAT-PARM4 PWAT-STATE1 <PLS > *** Initial conditions at start of simulation ran from 1990 to end of 1992 (pat 1-11-95) RUN 21 *** # - # *** CEPS SURS UZS IFWS LZS AGWS GWVS 17 0 0 0 0 2.5 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO <PLS ><-------Name-------> Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 2 ROADS/MOD 1 1 1 27 0 4 ROOF TOPS/FLAT 1 1 1 27 0 END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** 2 0 0 1 0 0 0 4 0 0 1 0 0 0 END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* 2 0 0 4 0 0 0 1 9 4 0 0 4 0 0 0 1 9 END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** 2 0 0 0 0 0 4 0 0 0 0 0 END IWAT-PARM1 IWAT-PARM2 Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 27 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC 2 400 0.05 0.1 0.08 4 400 0.01 0.1 0.1 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 2 0 0 4 0 0 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 2 0 0 4 0 0 END IWAT-STATE1 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** IMPLND 2 0.09 RCHRES 1 5 IMPLND 4 0.17 RCHRES 1 5 Basin 2*** PERLND 17 0.28 COPY 501 12 PERLND 17 0.28 COPY 601 12 PERLND 17 0.28 COPY 501 13 PERLND 17 0.28 COPY 601 13 ******Routing****** IMPLND 2 0.09 COPY 1 15 IMPLND 4 0.17 COPY 1 15 RCHRES 1 1 COPY 501 17 END SCHEMATIC NETWORK <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** COPY 501 OUTPUT MEAN 1 1 48.4 DISPLY 1 INPUT TIMSER 1 <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** END NETWORK RCHRES GEN-INFO RCHRES Name Nexits Unit Systems Printer *** # - #<------------------><---> User T-series Engl Metr LKFG *** in out *** 1 Gravel Trench Be-006 2 1 1 1 28 0 1 END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** 1 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* 1 4 0 0 0 0 0 0 0 0 0 1 9 Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 28 END PRINT-INFO HYDR-PARM1 RCHRES Flags for each HYDR Section *** # - # VC A1 A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each FG FG FG FG possible exit *** possible exit possible exit * * * * * * * * * * * * * * *** 1 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** <------><--------><--------><--------><--------><--------><--------> *** 1 1 0.01 0.0 0.0 0.5 0.0 END HYDR-PARM2 HYDR-INIT RCHRES Initial conditions for each HYDR section *** # - # *** VOL Initial value of COLIND Initial value of OUTDGT *** ac-ft for each possible exit for each possible exit <------><--------> <---><---><---><---><---> *** <---><---><---><---><---> 1 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS FTABLES FTABLE 1 92 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.023244 0.000000 0.000000 0.000000 0.055556 0.023244 0.000426 0.000000 0.044531 0.111111 0.023244 0.000852 0.000000 0.044531 0.166667 0.023244 0.001278 0.000000 0.044531 0.222222 0.023244 0.001705 0.000000 0.044531 0.277778 0.023244 0.002131 0.000000 0.044531 0.333333 0.023244 0.002557 0.000000 0.044531 0.388889 0.023244 0.002983 0.000000 0.044531 0.444444 0.023244 0.003409 0.000000 0.044531 0.500000 0.023244 0.003835 0.000000 0.044531 0.555556 0.023244 0.004261 0.000000 0.044531 0.611111 0.023244 0.004688 0.000000 0.044531 0.666667 0.023244 0.005114 0.000000 0.044531 0.722222 0.023244 0.005540 0.000000 0.044531 0.777778 0.023244 0.005966 0.000000 0.044531 0.833333 0.023244 0.006392 0.000000 0.044531 0.888889 0.023244 0.006818 0.000000 0.044531 0.944444 0.023244 0.007244 0.000000 0.044531 1.000000 0.023244 0.007670 0.000000 0.044531 1.055556 0.023244 0.008097 0.000000 0.044531 1.111111 0.023244 0.008523 0.000000 0.044531 1.166667 0.023244 0.008949 0.000000 0.044531 1.222222 0.023244 0.009375 0.000000 0.044531 1.277778 0.023244 0.009801 0.000000 0.044531 1.333333 0.023244 0.010227 0.000000 0.044531 1.388889 0.023244 0.010653 0.000000 0.044531 1.444444 0.023244 0.011080 0.000000 0.044531 1.500000 0.023244 0.011506 0.000000 0.044531 1.555556 0.023244 0.011932 0.000000 0.044531 1.611111 0.023244 0.012358 0.000000 0.044531 1.666667 0.023244 0.012784 0.000000 0.044531 1.722222 0.023244 0.013210 0.000000 0.044531 1.777778 0.023244 0.013636 0.000000 0.044531 1.833333 0.023244 0.014063 0.000000 0.044531 1.888889 0.023244 0.014489 0.000000 0.044531 1.944444 0.023244 0.014915 0.000000 0.044531 2.000000 0.023244 0.015341 0.000000 0.044531 2.055556 0.023244 0.015767 0.000000 0.044531 2.111111 0.023244 0.016193 0.000000 0.044531 Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 29 2.166667 0.023244 0.016619 0.000000 0.044531 2.222222 0.023244 0.017045 0.000000 0.044531 2.277778 0.023244 0.017472 0.000000 0.044531 2.333333 0.023244 0.017898 0.000000 0.044531 2.388889 0.023244 0.018324 0.000000 0.044531 2.444444 0.023244 0.018750 0.000000 0.044531 2.500000 0.023244 0.019176 0.000000 0.044531 2.555556 0.023244 0.019602 0.000000 0.044531 2.611111 0.023244 0.020028 0.000000 0.044531 2.666667 0.023244 0.020455 0.000000 0.044531 2.722222 0.023244 0.020881 0.000000 0.044531 2.777778 0.023244 0.021307 0.000000 0.044531 2.833333 0.023244 0.021733 0.000000 0.044531 2.888889 0.023244 0.022159 0.000000 0.044531 2.944444 0.023244 0.022585 0.000000 0.044531 3.000000 0.023244 0.023011 0.000000 0.044531 3.055556 0.023244 0.023438 0.000000 0.044531 3.111111 0.023244 0.023864 0.000000 0.044531 3.166667 0.023244 0.024290 0.000000 0.044531 3.222222 0.023244 0.024716 0.000000 0.044531 3.277778 0.023244 0.025142 0.000000 0.044531 3.333333 0.023244 0.025568 0.000000 0.044531 3.388889 0.023244 0.025994 0.000000 0.044531 3.444444 0.023244 0.026420 0.000000 0.044531 3.500000 0.023244 0.026847 0.000000 0.044531 3.555556 0.023244 0.027273 0.000000 0.044531 3.611111 0.023244 0.027699 0.000000 0.044531 3.666667 0.023244 0.028125 0.000000 0.044531 3.722222 0.023244 0.028551 0.000000 0.044531 3.777778 0.023244 0.028977 0.000000 0.044531 3.833333 0.023244 0.029403 0.000000 0.044531 3.888889 0.023244 0.029830 0.000000 0.044531 3.944444 0.023244 0.030256 0.000000 0.044531 4.000000 0.023244 0.030682 0.000000 0.044531 4.055556 0.023244 0.031973 0.115525 0.044531 4.111111 0.023244 0.033264 0.323094 0.044531 4.166667 0.023244 0.034556 0.575411 0.044531 4.222222 0.023244 0.035847 0.835581 0.044531 4.277778 0.023244 0.037138 1.067215 0.044531 4.333333 0.023244 0.038430 1.242541 0.044531 4.388889 0.023244 0.039721 1.355566 0.044531 4.444444 0.023244 0.041012 1.458162 0.044531 4.500000 0.023244 0.042304 1.546614 0.044531 4.555556 0.023244 0.043595 1.630275 0.044531 4.611111 0.023244 0.044886 1.709847 0.044531 4.666667 0.023244 0.046178 1.785876 0.044531 4.722222 0.023244 0.047469 1.858799 0.044531 4.777778 0.023244 0.048760 1.928967 0.044531 4.833333 0.023244 0.050052 1.996671 0.044531 4.888889 0.023244 0.051343 2.062153 0.044531 4.944444 0.023244 0.052634 2.125618 0.044531 5.000000 0.023244 0.053926 2.187243 0.044531 5.055556 0.023244 0.055217 2.247179 0.044531 END FTABLE 1 END FTABLES EXT SOURCES <-Volume-> <Member> SsysSgap<--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # tem strg<-factor->strg <Name> # # <Name> # # *** WDM 2 PREC ENGL 0.833 PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 0.833 IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** RCHRES 1 HYDR RO 1 1 1 WDM 1000 FLOW ENGL REPL Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 30 RCHRES 1 HYDR O 1 1 1 WDM 1001 FLOW ENGL REPL RCHRES 1 HYDR O 2 1 1 WDM 1002 FLOW ENGL REPL RCHRES 1 HYDR STAGE 1 1 1 WDM 1003 STAG ENGL REPL COPY 1 OUTPUT MEAN 1 1 48.4 WDM 701 FLOW ENGL REPL COPY 501 OUTPUT MEAN 1 1 48.4 WDM 801 FLOW ENGL REPL COPY 601 OUTPUT MEAN 1 1 48.4 WDM 901 FLOW ENGL REPL END EXT TARGETS MASS-LINK <Volume> <-Grp> <-Member-><--Mult--> <Target> <-Grp> <-Member->*** <Name> <Name> # #<-factor-> <Name> <Name> # #*** MASS-LINK 5 IMPLND IWATER SURO 0.083333 RCHRES INFLOW IVOL END MASS-LINK 5 MASS-LINK 12 PERLND PWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 12 MASS-LINK 13 PERLND PWATER IFWO 0.083333 COPY INPUT MEAN END MASS-LINK 13 MASS-LINK 15 IMPLND IWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 15 MASS-LINK 17 RCHRES OFLOW OVOL 1 COPY INPUT MEAN END MASS-LINK 17 END MASS-LINK END RUN Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 31 Predeveloped HSPF Message File Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 32 Mitigated HSPF Message File Oremus_Infiltration_4-17-24 5/6/2024 1:50:22 PM Page 33 Disclaimer Legal Notice This program and accompanying documentation are provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by End User. Clear Creek Solutions Inc. and the governmental licensee or sublicensees disclaim all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions Inc. or their authorized representatives have been advised of the possibility of such damages. Software Copyright © by : Clear Creek Solutions, Inc. 2005-2024; All Rights Reserved. Clear Creek Solutions, Inc. 6200 Capitol Blvd. Ste F Olympia, WA. 98501 Toll Free 1(866)943-0304 Local (360)943-0304 www.clearcreeksolutions.com