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APPROVED PLN ENG STM RESUB 3-BLD2023-0168+Civil_Plan+10.12.2023_1.42.38_PM+3838122BOLOTINADDITION COVER SHEET REFERENCE: 9/21/2023 TARGETED STORMWATER DRAINAGE REPORT WESI LAND USE CONSULTANTS 8/15/2023 GEOTECHNICAL EVALUATION COBALT GEOSCIENCES APPROVED BY PLANNING Oct 18 2023 ENGINEERING APPROVED. DIVISION 10/17/2023 BLD2023-0168 COMPLIES WITH APPLICABLE CITY STORMWATER CODE 10/20/2023 RESUB Oct 12 2023 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT COPYRIGHT © 2023 SHEETINDEX SHEET 1 OF 5......... COVER SHEET SHEET 2 OF 5......... SWPPP PLAN SHEET 3 OF 5......... GRADING & DRAINAGE PLAN SHEET 4 OF 5......... DRAINAGE NOTES & DETAILS SHEET 5 OF 5......... SWPPP NOTES & DETAILS 0.3 N OF LINE z I - - - - _ 49'W FROM 10'CED o -----___ PROP COR O SET REBAR/CAP APPROX. LOC. DISTRIBUTION 0 ON L E EASEMENT PER REC. NO. `" 200010250356 CONSTRUCTION SEQUENCE / „G FOUND REBAR/CAP I o N 83 ` , LS# 35978 1. Schedule Pre -Con through MyBuildingPermit.com and email "' ��� ,., +G . 0 38 " 40'CED 0.33'N OF LINE & I engineeringpermits@edmondswa.gov 2 days in advance of date requested. I "' e ° 23 w 117. ' vi o FOU D 1.5" IP D �' , �� ° 9 8 D 017' 01 O 0.22XW OF PROP COR 01 2. REVIEW TEMPORARY EROSION AND SEDIMENT CONTROL NOTES. - �c, / DEED) \ / 0.45' OF LINE / - - '�' 32' ED J. CALL FOR UTILITY LOCATES. a - / FACE ENDS 0.5'N 4. INSTALL TESC MEASURES AND MAINTAIN DUST CONTROL WHILE PREVENTING 6.59'W OF PROP CORD Q; - / - o / OF\ LINE & 5.1'W 1 // DISTURBANCE OF ANY AREAS OF VEGETATION OUTSIDE THE CONSTRUCTION ZONE. •8 / O�L�E F ROP COR 5. HAVE EROSION CONTROL MEASURES INSPECTED BY CITY OF EDMONDS ENGINEERING INSPECTOR. ALL TEMPORARY SEDIMENTATION AND EROSION CONTROL MEASURES MUST BE IN PLACE AND INSPECTED PRIOR TO ANY CONSTRUCTION OR SITE CLEARING. QR, ��' / / _ _- - - - I l EROSION AND SEDIMENTATION CONTROL PRACTICES AND/OR DEVICES SHALL BE ,�� / GRAVEL / - FOUN 1" IP / MAINTAINED UNTIL PERMANENT VEGETATION IS ESTABLISHED. - / DRIVE 1.48'S F LINE 1 ) 6. DEMOLISH EXISTING STRUCTURES / / 4.70'1 FROM 7. ROUGH GRADE SITE AS REQUIRED TO INSTALL DRAINAGE FEATURES. ��` 40'CED - - / Ile PROP COR 8. CLEAR, GRUB & ROUGH GRADE SITE. COMPOST AMEND AND REVEGETATE DISTURBED / / - . / AREAS NOT SUBJECT TO ADDITIONAL SURFACE DISTURBANCE IMMEDIATELY AFTER cQ / - - (FOUND 1.5" IP ROUGH GRADING. OTHER EXPOSED AREAS SHALL BE STABILIZED PER EROSION �'' / / - - - - INGRES EGRESS-. & CONTROL NOTES BELOW RF / / / / �.5�6'S OF LINE / S D ! f TaES AEEMENT PER 1 4�8'W FROM,4 / 9. INSTALL UTILITIES AND OTHER SITE IMPROVEMENTS, INCLUDING FRONTAGE �v 15PROX. LOC. C. NO.26� - _ POP/C6R IMPROVEMENTS. �O� / \ G / hry/ / LECTRIC EASEMENT / 1 10. STABILIZE AND COMPOST AMEND ALL EXPOSED SOILS PRIOR TO REVEGETATION OF �� / N/ / PER REC. NO. 992937 ENTIRE SITE. / 12'HLY` 11. ESTABLISH LANDSCAPING AND PERMANENT VEGETATION. ALL TEMPORARY EROSION CONTROL MEASURES SHALL BE REMOVED UPON FINAL SITE STABILIZATION AND APPROVAL BY CITY INSPECTOR. �� 12. INSTALL INFILTRATION TRENCH. EXCAVATION OF INFILTRATION AREAS SHALL NOT BE 9, \\zo / G / VEG \ \\ I ALLOWED DURING WET OR SATURATED CONDITIONS. THE BMP SHALL NOT BE MADE 5 CEI� 01 I OPERATIONAL UNTIL ALL EROSION -CAUSING PROJECT IMPROVEMENTS ARE COMPLETED ` AND ALL EXPOSED GROUND SURFACES ARE STABILIZED. ''' 1 14 ED 72'CED / �L4j/ / \\ I O'CEDO 12 ED I / / 14"CED \ / WOOD RICK h / 1 STAIR / �hro 4 4' D / A�� RI / / O .O G 36'CEO D / \ VE SF04 GARAGE O WIRE I / FENCE 45.8'. I I / :;/� 0Ld I a /�g�' • \ �PJF/ / ROAD EASEMENT PtR REC. I N NO., •809468 k 989780 I I I 00 0 �� a / 48'CEId' GP I / 90.7 / V /PLANTER PL HOUSE NO. 18230 FOOTPRINT=1,128 SF \ +I I / �30450 FOUND AR/CAP APPROX. SIDE SEWERI / / / PER AS-B L / I L I 0\79'E OF LINE WIRE {I FENCE / / c� / I // 1 I L -� HIMNEY 40 ,16 CED SET REBA /CAP " F D REBAR/CAP yeti / / _ /� ^ WIRE / 0�1�0o Q F , / / I 1 I O 30 C�D SSMH FENCE 2969 / / \ \ / / �0 / (TBR) � �5 / VEG 1 ' I � I EI(N)20.8' CONC 0 / 6'° D 0.74' E OF LINE& // / ry// , PG IE(S,E) 6"CONC APPROX. SEWER LINE / W00 / / I ro 30 CED/ PER CITY GIS MAP CAL 'D COf / O I I 1 1=257.17'(C.C.) 25r VEG M� ./ I \\ 10"1ED O I I ) I / I I 6'CED / / \ // 34'CED O I I i 44'CED / Ql I I / // / I I • I EL CTRIC AEEMENT PER v tiZ SHED / / / / / I w w 1 I R C. N� 199910250185 1 Q Y. / �cl I / � 1 ry / SHED ANTICIPATED WATER SERVICE / �� M LOCATION. CONTRACTOR TO CALL / / I I / 8" 00 LOCATE SERIVCES AND VERIFY / VEG I I LR� PRIOR TO WORK ON -SITE 00 I END FENC0.4'S >� IV/ (METE N 184TH ST SW) VE do G Existing O F CE END 1 .2'S OF LI / i / I I I ELECTRIC EASEMENT PER N I / / I I I I REC. NO. 199910250186 co LRL oCID / I I. RT. BM c 8',6 L/RL // I. I y SITE TBM I N 6 0 8'L L ELEV=269.11' 0 / � / wooD %8 OQ g 278 0 10 LRO / G WIRE I 4 C) 7 la FENCE \ / I SANITARY/STORM EASEMENT (PER TITLE) PER REC. NO. 1964433 ENCE / N LINE I / ALL DISTURBED SOILS SHALL BE / I I / OMPOST AIMENDED PER CITY OF a EDMONDS STAINDARD DETAIL SD-642 OR c APPF,OVED EQUAL. i I 1.2� RESUB I ° I Oct 12 2023 I OWNER/CONTRACTOR IS RESPONSIBLE FOR 72'cED I CITY OFLOPM EDMONDS TSERVI 0I • '. / / SET DEVELOPMENT SERVICES EROSION CONTROL AND DRAINAGE I - I REBAR/CAP DEPARTMENT 1 GVL.I-em ENGINEERING DIVISION APPROVED AS NOTED 10/17/2023 Know what's below. Call 811 two business days before you dig. COPYRIGHT © 2023 SCALE. 1" = 10' 0 10 20 LE_ EXISTING BUILDING EXISTING GRAVEL "' EXISTING PROPERTY BOUNDARY EXISTING EDGE OF ASPHALT - - - - - - - - EXISTING EASEMENT SS EXISTING SANITARY SEWER LINE SWPPP LEGEND CLEARING LIMITS SF SILT FENCE PL PLASTIC COVERING MU MULCH OR STRAW MATTING VEG RETAIN NATIVE VEGETATION CERTIFIED EROSION CONTROL SPECIALIST. WESTERN ENGINEERS, INC. TIMOTHY SARKELA, P.E. 9740 EVERGREEN WAY EVERETT, WA 98204 (425) 356-2700 NOTES. 1. THIS COMPANY (OR EQUAL) MUST BE SEPARATELY CONTRACTED, BY THE LAND OWNER OR CONTRACTOR, TO PERFORM EROSION CONTROL INSPECTIONS AND RECOMMENDATIONS TO SITE EROSION MANAGEMENTT, 2. WESTERN ENGINEERS, INC. TEMPORARY EROSION AND SEDIMENTATION CONTROL PLANS MAY BE MODIFIED BY THE EROSION CONTROL SPECIALIST DURING CONSTRUCTION BASED ON SITE CONDITIONS. 3. WESTERN ENGINEERS, INC. HAS NO DIRECT RESPONSIBILITY TO PERFORM THESE SERVICES UNLESS A CONTRACTURAL OBLIGATION HAS BEEN ESTABLISHED. 4. CONTRACTOR/DEVELOPER SHALL PROVIDE SNOHOMISH COUNTY DESIGNATED PROJECT C.E.S.C.L. INFORMATION PRIOR TO START OF CONSTRUCTION. 5. PROJECT C.E.S.C.L. SHALL ATTEND PRE -CONSTRUCTION MEETING. NW 1/4, NW 1/4, SEC.18, T.27N, R.04E, W.M. CITY OF EDMONDS, WASHINGTON CLEAN (<59' FINES) 1-1/2" - 3/4" WASHED DRAIN ROCK ' +G FOUND REBAR/CAP II N 83'38,23„ LS# 35978 w 11 40"CED 0.33'N OF LINE & o FOUIJID 1.5" IP - IkG� , �� °�� / 8' C (117' DEED) 01' 0.2 �OF PROP COR I // 0.45' OF LINE a` / - - +6' 32' ED / O FL10E ENDS 0.5'N 6.59'W OF IPROP COR �; - - rr Io / NS ON/LNE I. FFI OMPROPCOR I 0R' GRAVEL / FOUNT 1" IP / VEGETATED FILTER STRIP , / / / DRIVE o 1.48'S QF LINE I ) 4.70' FROM 2' MIN.`S / 40"CED 0/ PROP COR DRIVEWAY / e / - ---- ��I`FOUND 1.5" IP / S/D / INGRESS, EGRESS;. & .4 8'OFFLINE / \ �v �PROX. LOG o TREC. NOE_2� PER / + °��� e + - ///�/ I/ OR FILTER FABRIC w�� / \ l h`V/ LECTRIC EASEMENT F - OP/r BOTTOM & SIDES 12'HL / . PER REC. N0. 992937 � / A_ I / 6" MIN. AMENDED SOIL %K TRANSITION ZONE DETAIL WIRE / FENCE �,< \ SET I REBAIj/CAP h / o' APPRf"' PE \ SS U) W V) V) 0 03, h 'co/ / / F VE TED 14 ED / 72'CED / N IPA/ / O'CEDO \\ : I 12 ED �14'CE1 SROODRICK // h(O 2GRAVEL I l SITION ZONE lv ��_0 44' D / / ROUTE SPLASH BLOCK TO SHEET l , / �,. OVER BRICK INTO VEGETATION / O NV REMOVE BRICK VIDE . EGETATED� / oO // / 36'CED) j \ ��0� / FLOW PATH /..V) I Obtain Side Sewer Permit / / Prior to SS work. I/ / Clean out is required at the / ROFIT/TRADE-OFF I / q / GARAGE CATCHMENT AREA / WIRE wall and at the house. This / /� 3 ��p \ / = 1,369 SF FENCE / provides access to section / Install / 8' / / of pipe that will be under the / f'ean o'ut <>'� / new wall.Lj DECK . MODULAR BLOCK // ADDITIO / ��� / \ F� ROAD EASEMENT PtR RE I I N v ii t NO. �809468 & 989780 CD o WALL PER DETAIL / / ' ��, j / THIS SHEET / / / detail on this 8 EL=259.90 I II LLB CEd 2' GRAVEL TR4NSITION ZONE Install % 026 /EL=262.00 ) / clean out f ROOF j F / 2' GRAVEL F/ TRANSITION ZONE 9 L I<_ 10, <-/ 4 2' GRAVEL / I Z LANTER� �/ COMPOS TRANSITION ZON / I \ VEGEtATED EMDED 4 HOUSE NO. 18230 SI TRIEP FOOTPRINT=1,128 SF / F 'I I FOUND REBAR/CAP APPROX. SIDE SEWED/ \ / / F I / 0\S# 3045OLINE PER AS_ i \ SPLASH BLOCK I F�� 9 .4 `W I I \ / EL=259.75 4 dii 2S 82 F I // / �00� HIMNEY / / DR�VEWA� Q ��'03�� / I I I / A. 40 ,16 CED � _ ', G 2 I I / 10' I 30'Ci F D REBAR/CAP ��ti / _ / i ^ WIRE 4 4 EL =260'p9 0��� Q F l / GETATE I I O I SSMH / ° 0.62' E OF LIN & // \ ,�� / ( ) Fa LS LTEP I EI(N)28'CONC TBR O 6 G � / / 1 W00 i / b Li 30'CED/ o I - - - - IE(S,E) 6 CONC / 6 D 0.74' E OF / G my _ I " 5MA�LL ►C� �l / / SPLASH BLOCK F\ o / O F F o I I I=257.17'(C.C.) I Cr M / 6'CED / / GARAGE ) / 34'CED O m�o • . I I 4'CED o RY d � / ADDITION / / ) 4'EVG 0' OWP HJ s� / No / I EL��}}6RIC EASEMENT PER MODULAR 8 CK WALL F I I R�C. N0. 199910250185 SHED TO INCLUDE ONE (1) ADS/ i > > I / EV-READY STALL PER Q / ECDC 17.115.040 N SHED f / cL� / ANTICIPATED WATER SERVICE LOLION CONTRACTOR CALL OCATE SERIVCES AND �ERIFY FENCE END 0.4'S COMPOST AMENDED VEGETATED FILTER STRIP 2' MIN. a DRIVEWAY 1-2% 6" COMPOST TILLED INTO�� _ /� 44f.x�. FILTER FABRIC NATIVE SOIL FOR CAFVS / \\/ BOTTOM & SIDES CLEAN <59 FINES \ 6" MIN. AMENDED SOIL 1-1/2" - 3/4" WASHED DRAIN ROCKTRANSITION ZONE W/ COMPOST AMENDED VEGETATED FILTER STRIP DETAIL N. T. S. See standard detail SD-635 Typical Sheet Flow Dispersion OWNER/CONTRACTOR RESPONSIBLE FOR LOCATING ENGINEERING DIVISION ALL ON SITE UTILITIES. RELOCATION/REVISION TO ANY APPROVED AS NOTED UTILITIES MAY REQUIRE A SEPERATE PERMIT. Know what's below. ALL EXPOSED SURFACES TO .10/17/2023 Call 811 two business days y BE COVERED WITHIN 2 DAYS before you dig. PRIOR TO WORK ON -SITE. / F F (METER ON 184TH ST SW�I- S� fY,oq O EXISTING alb � F CE END / .2'S OF LI SPLA BLOCK / o= I I ELECTRIC EASEMENT PER J 'LRL // VEGETA' REC. NO. 199910250186 0 ° 8-,6-,AL / FLOW PATH I VERT. BM 6 0 8'L Lo � �, / E � I � / BM ELEV SITE T269.11' S \ WOOD / I 00' tv Cq�C BOj� 10"LRL O tk / �,o ��% I I WIRE / �/ FENCE / I I I SANITARY/STORM EASEMENT (PER F F I I TITLE) PER REC. NO. 1964433 ENCE N LINE / F F o •I • 40 F I I o 1.2'I 72'CED0 / SET I REBAR/CAP 1 . GVL. 8- 'qS a\ • I � a a 02-08-2023 PROPOSED NEW ROOFTOP = 1,586 SF PROPOSED CONCRETE DRIVEWAY = 983 SF - - PROPOSED DECK = 372 SF EXISTING ROOFTOP = 2,061 SF EXISTING BRICK WALK = 807 SF EXISTING GRAVEL DRIVE = 3,417 SF EXISTING SHED ROOF = 150 SF EXISTING ASPHALT = 374 SF TOTAL EXISTING IMPERVIOUS AREA = 6.809 SF 0.25 RETRO => 1.702.5 SF MITIGATED IMPERVIOUS TOTAL = 6,157 SF IMPERVIOUS AREA EXHIBIT 8" Min. Well Draining Soil Keystone Cap Unit /Keystone Compac Unit Unit Drainage Fill 1" - 1 1/4" 1-j" Washed 8" Finished Grade `t d Rouned Rock) N Filter Fabric top, side, & bottom i Unreinforced Concrete or 6" Perforated PVC Crushed Stone Leveling Pad Drainage with holes up. MODULAR BLOCK (KEYSTONE) WALL N. T.S. RESUB Oct 12 2023 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT SCALE: 1" = 10' 0 10 20 LE_ EXISTING BUILDING EXISTING GRAVEL EXISTING PROPERTY BOUNDARY EXISTING EDGE OF ASPHALT - - - - - - - - EXISTING EASEMENT EXISTING SANITARY SEWER LINE SS PROPOSED BUILDING W/ ROOF OVERHANG d' PROPOSED DRIVEWAY TAX ACCOUNT NO. (S): SITE ADDRESS: 27041800200300 18230 91ST AVENUE W EDMONDS, WA 98026 COPYRIGHT © 2023 JWESI (425) GRADING, DRAINAGE AND LANDSCAPE PLAN FOR: LAND USE BOLOTIN ADDITION CONSULTANTS 356-2 700 NW 114, NW 114, SEC 18, T.27N, R.04E, W.M. CITY OF EDMONDS, WASHINGTON PLANNI NG o ENGI NEERI NG 0 SURVEYI NG DRAWN BY DATE REV. BY DATE PROJECT MANAGER SCALE * 9740 EVERGREEN WAY * EVERETT * WA * 98204 * TAS 02/07/23 T. SARKELA DRAWING FILE NAME CHECKED BY F.B. NO. JOB NUMBER SHEET NO. VISIT OUR WEBSITEAT WWW.WESLCO 220801ABASE.DWG TAS - 22-0801-A 3 OF5 GENERAL NOTES: STORM DRAINAGE NOTES: 1. ALL MATERIALS AND WORK SHOWN ON THESE PLANS SHALL CONFORM TO THE CITY OF EDMONDS STANDARD PLANS AND DETAILS, THE FOLLOWING SPECIFICATIONS AND CODES, AND ALL OTHER APPLICABLE LOCAL MUNICIPAL, STATE, AND FEDERAL CODES, RULES AND REGULATIONS: - CURRENT INTERNATIONAL BUILDING CODE (IBC) - ;2022 WSDOT/APWA STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION - WASHINGTON STATE DEPARTMENT OF ECOLOGY STORMWATER MANAGEMENT MANUAL FOR THE PUGET SOUND BASIN (CURRENT EDITION) 2019 2. STANDARD PLAN AND TYPE NUMBERS INDICATED ON THESE DRAWINGS REFER TO CITY OF EDMONDS STANDARD DETAILS, UNLESS NOTED OTHERWISE 3. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOBSITE WHENEVER CONSTRUCTION IS IN PROGRESS. 4. DEVIATIONS FROM THESE PLANS MUST BE APPROVED BY THE ENGINEER OF RECORD AND THE LOCAL GOVERNING AUTHORITY. 5. CONTRACTOR SHALL RECORD ALL APPROVED DEVIATIONS FROM THESE PLANS ON A SET OF ';AS -BUILT" DRAWINGS AND SHALL SUMMARIZE ALL ASBUILT CONDITIONS ON ONE SET OF REPRODUCIBLE DRAWINGS FOR SUBMITTAL TO THE OWNER PRIOR PROJECT COMPLETION AND ACCEPTANCE. A SET OF AS -BUILT DRAWINGS SHALL BE SUBMITTED TO THE CITY OF EDMONDS PRIOR TO FINAL APPROVAL OF THE BUILDING OCCUPANCY/FINAL PROJECT APPROVAL. 6. ELEVATIONS SHOWN ARE IN FEET. SEE SURVEY FOR BENCHMARK INFORMATION. 7. THE LOCATIONS OF EXISTING UTILITIES AND SITE FEATURES SHOWN HEREON HAVE BEEN FURNISHED BY OTHERS BY FIELD SURVEY OR OBTAINED FROM AVAILABLE RECORDS AND SHOULD THEREFORE BE CONSIDERED APPROXIMATE ONLY AND NOT NECESSARILY COMPLETE. IT IS THE SOLE RESPONSIBILITY OF THE CONTRACTOR TO INDEPENDENTLY VERIFY THE ACCURACY OF ALL UTILITY LOCATIONS SHOWN AND TO FURTHER DISCOVER AND PROTECT ANY OTHER UTILITIES NOT SHOWN HEREON WHICH MAY BE AFFECTED BY THE IMPLEMENTATION OF THIS PLAN. CONTRACTOR SHALL VERIFY LOCATION, DEPTH, SIZE, TYPE AND CONDITION OF EXISTING UTILITY LINES AT CONNECTION OR CROSSING POINTS BEFORE TRENCHING FOR NEW UTILITIES. ENGINEER ASSUMES NO RESPONSIBILITY FOR THE COMPLETENESS OR ACCURACY OF THE EXISTING UTILITIES AND SITE FEATURES PRESENTED ON THESE DRAWINGS. ENGINEER SHALL BE NOTIFIED IMMEDIATELY OF CONFLICTS THAT ARISE. 8. CONTRACTOR SHALL LOCATE AND PROTECT ALL UTILITIES DURING CONSTRUCTION AND SHALL CONTACT THE UNDERGROUND UTILITIES Revised 05.15.2017 LOCATION SERVICE (1-800-424-5555) AT LEAST 48 HOURS PRIOR TO CONSTRUCTION. 9. CONTRACTOR SHALL VERIFY ALL CONDITIONS AND DIMENSIONS AT THE PROJECT SITE BEFORE STARTING WORK AND SHALL NOTIFY OWNERS REPRESENTATIVE OF ANY DISCREPANCIES. 10. PIPE LENGTHS WHERE SHOWN ARE APPROXIMATE AND MAY CHANGE DUE TO FIELD CONDITIONS. 11. CONTRACTOR SHALL OBTAIN A COPY OF THE GEOTECHNICAL REPORT (WHERE APPLICABLE) AND SHALL THOROUGHLY FAMILIARIZE HIMSELF WITH THE CONTENTS THEREOF. ALL SITE WORK SHALL BE PERFORMED IN STRICT COMPLIANCE WITH THE RECOMMENDATIONS OF THIS REPORT. 12. STRUCTURAL FILL MATERIAL AND PLACEMENT SHALL CONFORM TO THE RECOMMENDATIONS OF THE PROJECT GEOTECHNICAL REPORT. 13. SUBGRADE SOILS IN ALL AREAS WHERE RAIN GARDENS, INFILTRATION OR PERVIOUS PAVEMENT IS TO BE PLACED SHALL BE DELINEATED AND PROTECTED AT ALL TIMES FROM COMPACTIVE ACTIVITIES (i.e. HEAVY EQUIPMENT, STOCKPILING). 14. MANHOLES, CATCH BASINS, UTILITIES AND PAVEMENT SHALL BEAR ON MEDIUM DENSE TO VERY DENSE NATIVE SOIL OR COMPACTED STRUCTURAL FILL. IF SOIL IS DISTURBED, SOFT, LOOSE, WET OR IF ORGANIC MATERIAL IS PRESENT AT SUBGRADE ELEVATION, REMOVE AND REPLACE WITH COMPACTED STRUCTURAL FILL PER GEOTECHNICAL REPORT. 15. SEE SURVEY AND ARCHITECTURAL DRAWINGS FOR DIMENSIONS AND LOCATIONS OF BUILDINGS, LANDSCAPED AREAS AND OTHER PROPOSED OR EXISTING SITE FEATURES. 16. SEE ARCHITECTURAL DRAWINGS FOR PERIMETER FOUNDATION DRAINS. FOUNDATION DRAINS SHALL BE INDEPENDENT OF OTHER SITE DRAIN LINES AND SHALL BE TIGHTLINED TO THE STORM DRAIN SYSTEM WHERE INDICATED ON THE PLANS. 17. ALL REQUIRED STORMWATER FACILITIES MUST BE CONSTRUCTED AND IN OPERATION PRIOR TO INSTALLATION OF ANY PAVEMENT UNLESS OTHERWISE APPROVED BY THE ENGINEER. 18. ALL ROOF DRAINS, PERIMETER FOUNDATION DRAINS, CATCH BASINS AND OTHER EXTERNAL DRAINS SHALL BE CONNECTED TO THE STORM DRAINAGE SYSTEM, UNLESS NOTED OTHERWISE. 19. ALL FOOTING DRAINS SERVING BUILDINGS, WALLS, ROCKERIES, ETC. SHALL CONNECT TO THE DRAINAGE SYSTEM DOWNSTREAM OF THE SITE STORMWATER DETENTION SYSTEM. Revised 05.15.2017 20. CONTRACTOR SHALL OBTAIN AND PAY FOR ALL PERMITS REQUIRED FOR INSTALLATION OF ALL SITE IMPROVEMENTS INDICATED ON THESE DRAWINGS. 21. A SEPARATE IRRIGATION PERMIT MUST BE OBTAINED FROM THE CITY PUBLIC WORKS DEPARTMENT. PRIOR TO FINAL CONSTRUCTION ACCEPTANCE, PROVIDE TO THE CITY WATER QUALITY TECHNICIAN, A COPY OF THE BACKFLOW TEST REPORT. TEST REPORTS CAN BE FAXED TO 425-744-6057 OR EMAILED TO JEFF.KOBLYK@EDMONDSWA.GOV. BACKFLOW TESTING SHALL BE COMPLETED BY THE OWNER ANNUALLY THEREAFTER. 22. AS A MINIMUM REQUIREMENT, ALL DISTURBED AREAS ON AND OFF SITE SHALL BE RETURNED TO THE EQUIVALENT OF THEIR PRECONSTRUCTION CONDITION IN ACCORDANCE WITH APPROPRIATE REQUIREMENTS AND STANDARDS. 23. ALL DISTURBED SOIL AREAS SHALL BE COMPOST AMENDED AND SEEDED OR STABILIZED BY OTHER ACCEPTABLE METHODS FOR THE PREVENTION OF ONSITE EROSION AFTER THE COMPLETION OF CONSTRUCTION. SEE EROSION CONTROL PLANS FOR SPECIFIC GRADING AND EROSION CONTROL REQUIREMENTS. 24. THE CONTRACTOR SHALL KEEP OFF -SITE STREETS CLEAN AT ALL TIMES BY SWEEPING. WASHING OF THESE STREETS WILL NOT BE ALLOWED WITHOUT PRIOR APPROVAL. 25. THIS PROJECT IS NOT A BALANCED EARTHWORK PROJECT. BOTH EXPORT AND IMPORT OF SOIL AND ROCK MATERIALS ARE REQUIRED. 26. SLOPE OF FINISHED GRADE SHALL BE CONSTANT BETWEEN FINISHED CONTOURS OR SPOT ELEVATIONS SHOWN. 27. FINISHED GRADE SHALL SLOPE AWAY FROM BUILDING WALLS AT MINIMUM 59 SLOPE FOR A MINIMUM DISTANCE OF 10 FEET 28. CONTRACTOR SHALL BE RESPONSIBLE FOR AND SHALL INSTALL AND MAINTAIN SHORING AND BRACING AS NECESSARY TO PROTECT WORKERS, EXISTING BUILDINGS, STREETS, WALKWAYS, UTILITIES AND OTHER EXISTING AND PROPOSED IMPROVEMENTS AND EXCAVATIONS AGAINST LOSS OF GROUND OR CAVING EMBANKMENTS. CONTRACTOR SHALL ALSO BE RESPONSIBLE FOR REMOVAL OF SHORING AND BRACING, AS REQUIRED. 29. CONTRACTOR SHALL OBTAIN APPROVAL FROM THE CITY AND FOLLOW CITY PROCEDURES FOR ALL WATER SERVICE INTERRUPTIONS, HYDRANT SHUTOFFS, STREET CLOSURES OR OTHER ACCESS RESTRICTIONS. CONTRACTOR SHALL NOT RELOCATE OR ELIMINATE ANY HYDRANTS WITHOUT FIRST OBTAINING WRITTEN APPROVAL FROM THE FIRE MARSHAL. 30. COORDINATE AND ARRANGE FOR ALL UTILITY CONNECTIONS, UTILITY RELOCATIONS AND/OR SERVICE INTERRUPTIONS WITH THE AFFECTED OWNERS AND APPROPRIATE UTILITY COMPANIES. CONNECTIONS TO Revised 05.15.2017 EXISTING UTILITIES SHALL BE MADE ONLY WITH ADVANCE WRITTEN APPROVAL OF THE AUTHORITIES GOVERNING SAID UTILITIES. 31. ALL UTILITIES SHALL BE PLACED UNDERGROUND. 32. EXISTING UTILITY LINES IN SERVICE WHICH ARE DAMAGED DUE TO CONSTRUCTION WORK SHALL BE REPAIRED AT CONTRACTOR'S EXPENSE AND INSPECTED AND ACCEPTED BY CITY OF EDMONDS AND OWNERS REPRESENTATIVE PRIOR TO BACKFILLING. 33. NEW UTILITY LOCATIONS ARE GENERALLY SHOWN BY DIMENSION, WHERE NO DIMENSIONS ARE INDICATED, LOCATIONS MAY BE SCALED FROM DRAWINGS. FIELD ADJUSTMENTS SHALL BE APPROVED BY OWNERS REPRESENTATIVE AND CITY. 34. FIELD STAKE ALL UTILITY STUBS AT THE PROPERTY LINE. 35. TRENCH BACKFILL OF UTILITIES LOCATED WITHIN THE CITY RIGHT-OF-WAY SHALL BE COMPACTED TO 95%. COMPACTION TEST REPORTS SHALL BE PROVIDED TO THE CITY PRIOR TO PAVING. 36. WHERE NEW PIPE CLEARS AN EXISTING OR NEW UTILITY BY 6" OR LESS, PLACE Ethafoam 200 AS A CUSHION BETWEEN THE UTILITIES. 37. SEE MECHANICAL DRAWINGS (WHERE APPLICABLE) FOR CONTINUATION OF SITE UTILITIES WITHIN THE BUILDING. 38. SEE ELECTRICAL DRAWINGS (WHERE APPLICABLE) FOR EXTERIOR ELECTRICAL WORK. 39. SEE LANDSCAPE DRAWINGS (WHERE APPLICABLE) FOR SITE IRRIGATION SYSTEM. 40. PIPE MATERIAL AND SIGNAGE SUBMITTALS SHALL BE PROVIDED TO CITY ENGINEERING DIVISION FOR APPROVAL PRIOR TO INSTALLATION. 1. PIPES A. THE ENGINEER SHALL PLACE A NOTE STATING THE MINIMUM PIPE SPECIFICATIONS ALLOWED PER THE DESIGN. (SEE BELOW) B. ALL STORM SEWER PIPE SHALL CONFORM WITH CHAPTER 5 OF THE SNOHOMISH COUNTY ENGINEERING DESIGN AND DEVELOPMENT STANDARDS (2018) AND DIVISION 7 OF THE WSDOT/APWA SPECIFICATIONS. C. ALL PIPE SHALL BE PLACED ON STABLE EARTH, OR IF IN THE OPINION OF THE COUNTY INSPECTOR, THE EXISTING FOUNDATION IS UNSATISFACTORY, THEN IT SHALL BE EXCAVATED BELOW GRADE AND BACK FILLED WITH COMPACTED GRAVEL MATERIAL TO SUPPORT THE PIPE. D. THE BACKFILL SHALL BE PLACED EQUALLY ON BOTH SIDES OF THE PIPE OR PIPE ARCH IN LAYERS WITH A LOOSE AVERAGE DEPTH OF 6" MAXIMUM DEPTH 8", THOROUGHLY TAMPING EACH LAYER. THESE COMPACTED LAYERS MUST EXTEND FOR ONE DIAMETER ON EACH SIDE OF THE PIPE OR TO THE SIDE OF THE TRENCH. MATERIALS TO COMPLETE THE FILL OVER PIPE SHALL BE THE SAME AS DESCRIBED. (REFER TO WSDOT STANDARD SPECIFICATION 7-04.3(3) AND STANDARD SPECIFICATION 2- 03.3(14)C, METHOD B & C. E DOUBLE WALLED (SMOOTH INTERIOR) CORRUGATED POLYETHYLENE PIPE, MEETING THE REQUIREMENTS OF AASHTO M252 IN 8 INCH SIZE AND AASHTO M294S IN SIZES 12" THROUGH 36" IS AN ACCEPTABLE ALTERNATIVE TO SCHEDULE A CULVERT PIPE, AS SHOWN ON WSDOT/APWA STANDARD PLAN B-17 AND FOR STORM SEWERS IN ACCORDANCE WITH SNOHOMISH COUNTY STANDARDS. F. BACKFILL AROUND PIPE MUST BE COMPACTED TO A SPECIFIED AASHTO T-99 DENSITY OF 909. USE REASONABLE CARE IN HANDLING AND INSTALLATION. 2. CATCH BASINS AND MANHOLES A. ALL CATCH BASINS SHALL BE TYPE 1 UNLESS OTHERWISE NOTED. B. ALL CATCH BASINS WITH A DEPTH OVER 5.0 FEET TO THE FLOW LINE SHALL BE A TYPE II CB OR LARGER (MANHOLE). C. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ADJUSTING ALL MANHOLE, INLET, AND CATCH BASIN FRAMES AND GRATES JUST PRIOR TO POURING OF CURBS AND PAVING. D. ALL GRATES SHALL BE DEPRESSED 0.1 FEET BELOW PAVEMENT LEVEL. E CATCH BASIN FRAME AND GRATES SHALL BE OLYMPIC FOUNDRY MODEL 5435, 5435A, OR 50503A, LOCKING TYPE OR EQUAL. MODEL 5435A IS REFERRED TO AS A "THROUGH CURB INLET" ON THE PLAN. MODEL 50503A IS REFERRED TO AS A 'ROLLED GRATE INLET" IN THE PLAN. F. ALL TYPE 11 CATCH BASIN MANHOLES, INLET, AND CATCH BASINS SHALL HAVE LOCKING LIDS. ROLLED GRATE NOT APPROVED FOR OUTSIDE OF COUNTY RIGHT OF WAY OR FOR USE WITH TYPE II MANHOLE. G. STANDARD LADDER STEPS SHALL BE PROVIDED IN ALL CATCH BASINS AND MANHOLES EXCEEDING 5 FEET IN DEPTH. 3. PRIOR TO SIDEWALK CONSTRUCTION, CONSTRUCT THE LOT DRAINAGE CONNECTIONS AND/OR STUB OUTS BEYOND SIDEWALK. STUB OUTS SHALL BE MARKED WITH A 2" X 4" AND LABELED 'STORM". LOCATIONS OF THESE INSTALLATIONS SHALL BE PLACED ON THE AS -BUILT CONSTRUCTION PLANS AND SUBMITTED TO THE COUNTY. 4. DETENTION PONDS WITH SIDE SLOPES STEEPER THAN 3:1 SHALL REQUIRE A PERIMETER FENCE PER SNOHOMISH COUNTY CODE SIDE SLOPE AVERAGING SHALL NOT BE ALLOWED. 5. STORM WATER RETENTION/DETENTION FACILITIES, STORM DRAINAGE PIPE AND CATCH BASINS SHALL BE FLUSHED AND CLEANED PRIOR TO SNOHOMISH COUNTY ACCEPTANCE. UNDISTURBED NATIVE VEGETATION UNDISTURBED NATIVE SOIL 2" ORGANIC MULCH 3" OF COMPOST INCORPORATED INTO 5" OF SITE SOIL (TOTAL AMENDED DEPTH OF 9.5", FOR A SETTLED DEPTH OF 8") SUBSOIL SCARIFIED 4" BELOW COMPOST AMENDED LAYER (12" BELOW SOIL SURFACE) 2" ORGANIC MULCH 6" IMPORTED TOPSOIL MIX (COMPACTED DEPTH) SUBSOIL IS SCARIFIED 6" BELOW IMPORTED TOPSOIL MIX UNDISTURBED PLANTS (SEE NOTE 1) UNDISTURBED TURF (LAWN) AREAS (SEE NOTE 1) OPTION 1 - NO DISTURBANCE PLANTING BEDS TURF (LAWN) AREAS UNDISTURBED TURF/LAWN/LANDSCAPE UNDISTURBED NATIVE SOIL STEEP SLOPE NOTE. AMENDED SOILS SHOULD NOT BE INSTALLED ON FINISHED SLOPES EXCEEDING 3390. AREAS EXCEEDING 33% SHALL BE STABILIZED PER THE ENGINEER/GEOTECH OF RECORD. GRASS: SEED OR SOD f.75" OF COMPOST INCORPORATED 'NTO 6.25" OF SITE SOIL (TOTAL AMENDED DEPTH OF 9.5", FOR A SETTLED DEPTH OF 8') SUBSOIL SCARIFIED 4" BELOW COMPOST AMENDED LAYER "12" BELOW SOIL SURFACE) OPTION 2 - AMEND IN PLACE OR STOCKPILE AND AMEND GENERAL NOTES: PLANTING BEDS TURF (LAWN) AREAS OPTION 3 - IMPORT TOPSOIL CITY OF EDMONDS PUBLIC WORKS DEPARTMENT PIPE SPECIFICATIONS: 1. AREAS OF NO DISTURBANCE SHALL BE FENCED AND EXISTING GRASS: SEED VEGETATION AND SOIL SHALL BE OR SOD PROTECTED FROM CONSTRUCTION IMPACTS. 2. TO MEASURE SETTLED DEPTH, 5" IMPORTED WATER SOIL SUFFICIENTLY TO TOPSOIL MIX FULLY SATURATE WITHOUT COMPACTED CAUSING EROSION. DEPTH) 3. COMPOST SHALL MEET SPEC. REQUIREMENTS IN THE 2017 EDMONDS STORMWATER SUBSOIL IS ADDENDUM (CHECKLIST 7). SCARIFIED 6" BELOW 4. COMPACTION OF TOPSOIL (WHERE IMPORTED REQUIRED) TO BE TO 85% (MAX) TOPSOIL MIX OF THE MAXIMUM DRY DENSITY PER MODIFIED PROCTOR TEST (ASTM D 1557). POST CONSTRUCTION SOIL QUALITY AND DEPTH APPROVED BY: R. ENGLISH PLACEMENT REQUIREMENTS FOR CULVERTS AND STORM SEWER INSTALLATION SHALL BE AS INDICATED IN THE WSDOT/APWA SPECIFICATIONS SECTIONS 7-02 AND 7.04, RESPECTIVELY, AND AASHTO SPECIFICATIONS. PIPE MATERIALS SHALL COMPLY WITH SECTION 9-05 OF THE WSDOT/APWA SPECIFICATIONS WITH THE FOLLOWING CLARIFICATIONS: 1. DOUBLE WALLED (SMOOTH INTERIOR) CORRUGATED POLYETHYLENE PIPE, MEETING THE REQUIREMENTS OF AASHTO M 252 IN 8 INCH SIZE AND AASHTO M 294S IN SIZES 12" THROUGH 36", IS AN ACCEPTABLE ALTERNATIVE FOR SCHEDULE A CULVERT PIPE, AS SHOWN ON WSDOT/APWA STANDARD PLAN B-17 AND FOR STORM SEWERS IN ACCORDANCE WITH THESE STANDARDS. THE ENDS OF THE PIPE SHALL BE BEVELED TO MATCH THE SLOPE. CORRUGATED POLYETHYLENE PIPE SHALL NOT BE USED WHEN BEVELED SLOPES ARE FLATTER THAN 4:1. FOR ANY PIPE LENGTH SECTION THAT IS TO BE BEVELED ON THE END, THE MINIMUM LENGTH OF THE UNBEVELED PORTION OF THE PIPE SHALL BE 6 FEET. THE PIPE SHALL BE INSTALLED IN A DESIGN A TRENCH AS SHOWN ON STANDARD DRAWING 9-210. FOR BURIAL DEPTHS EXCEEDING 15 FEET, THE PIPE SHALL BE INSTALLED IN ACCORDANCE WITH THE MANUFACTURERS RECOMMENDATIONS AND THESE STANDARDS. 2. IN PRIVATE DEVELOPMENTS, THE USE OF NON -SMOOTH INTERIOR CORRUGATED POLYETHYLENE (AASHTO M-294, TYPE C) IS ALLOWED, EXCEPT WHERE THESE INSTALLATIONS ARE OR CAN REASONABLY BE EXPECTED TO BECOME PART OF THE COUNTY MAINTAINED DRAINAGE SYSTEM. ACCEPTANCE ALTERNATIVES FOR STORM PIPE LABELED AS ADS N-12: -REINFORCED CONCRETE PIPE. -CORRUGATED HIGH DENSITY POLYETHYLENE PIPE (CPEP) -SMOOTH INTERIOR (SEE NOTE 1). -HIGH DENSITY POLYETHYLENE PIPE (HDPP). 3. MATERIALS AND SPECIFICATIONS ALL STEEL PIPES, CULVERTS, TANKS AND OTHER STEEL PARTS OF ANY STORM DRAINAGE SYSTEM SHALL BE GALVANIZED AND HAVE A TREATMENT 1 ASPHALT COATING OR BETTER AS SPECIFIED IN THE WSDOT STANDARD SPECIFICATIONS SECTION 9-05.4(3). NOTE. ALUMINUM AND CONCRETE PIPES AND STRUCTURES DO NOT REQUIRE A TREATMENT 1 COATING. [EDDS INT 5-06 g 2] REVISION DATE APRIL 2021 STANDARD DETAIL SD-642 GENERAL NOTES: 1. REFER TO THE 2022 CITY OF EDMONDS STORMWATER ADDENDUM FOR SETBACK (CHECKLIST 14) AND INFEASIBILITY REQUIREMENTS. NOTES: 1. MAXIMUM OF 700 SQUARE FEET OF ROOF AREA MAY DRAIN TO EACH SPLASHBLOCK. 2. SPLASHBLOCK MAY BE CONCRETE, PLASTIC, OR SIMILAR RIGID MATERIAL. 3. ROCK PAD SHALL CONSIST OF 4" STREAMBED COBBLES PER WSDOT SPEC. 9-03.1 1(2) OR WASHED DRAIN ROCK CONFORMING TO WSDOT SPEC. 9-03.12(5), GRAVEL BACKFILL FOR DRYWELLS. 4. A VEGETATED FLOW PATH MUST BE PROVIDED IN ACCORDANCE THE 2022 CITY OF EDMONDS STORMWATER ADDENDUM REQUIREMENTS. CITY OF EDMONDS PUBLIC WORKS DEPARTMENT RESUB Oct 12 2023 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT COPYRIGHT © 2023 TYPICAL DOWNSPOUT DISPERSION SPLASHBLOCK FOR ROOFS APPROVED BY: R. ENGLISH REVISION DATE FEBRUARY 2023 STANDARD DETAIL SD-633 ENGINEERING DIVISION APPROVED .10/17/2023 GRADING REQUIREMENTS AND NOTES: 1. ALL GRADING SHALL COMPLY WITH TITLE 30.63E OF THE SNOHOMISH COUNTY CODE AND CHAPTER 33 OF THE UNIFORM BUILDING CODE (CURRENT EDITION). GRADING IS SUBJECT TO INSPECTION BY THE BUILDING OFFICIAL. 2. CALL 1-800-424-5555 PRIOR TO CONSTRUCTION FOR REQUIRED UTILITY LOCATION BEFORE UNDERGROUND CONSTRUCTION. 3. ALL CUT AND FILL SLOPES SHALL BE MAXIMUM OF 2:1. 4. GRADING PLAN REQUIREMENTS DO NOT TERMINATE WITH THE EXPIRATION OF THE GRADING PERMIT, UNLESS SHOWN ON THE PLANS AS TEMPORARY. EROSION CONTROL, DRAINAGE CONTROL AND SLOPE MANAGEMENT REQUIREMENTS ARE EXPRESSLY ON -GOING REQUIREMENTS. 5. THE LIMITS SHALL BE MARKED IN THE FIELD BEFORE PERFORMING ANY GRADING OR CLEARING. ALSO MARK THE LIMITS OF ALL SENSITIVE AREAS AND THEIR BUFFERS, DRAINAGE COURSES TO BE UN -DISTURBED, AND TREES TO BE RETAINED. 6. GRADING SHALL HAVE A MINIMUM SETBACK OF 2 FEET FROM THE BOUNDARY LINE, UNLESS SPECIFICALLY SHOWN AS PERMITTED ON THE PLANS. EROSION CONTROL REQUIREMENTS AND NOTES: 1. CLEARING LIMITS SHALL BE ESTABLISHED FIRST THEN EROSION CONTROL BEST MANAGEMENT PRACTICES (BMPS) SHALL BE INSTALLED PRIOR TO ANY SITE DISTURBANCE. THE EROSION/SEDIMENTATION CONTROL FACILITIES SHALL BE CONSTRUCTED PRIOR TO ANY GRADING OR EXTENSIVE LAND CLEARING IN ACCORDANCE WITH THE APPROVED CONSTRUCTION STORM WATER POLLUTION PREVENTION PLAN (SWPPP). THESE FACILITIES MUST BE SATISFACTORILY MAINTAINED UNTIL CONSTRUCTION AND LANDSCAPING IN COMPLETED, THE PERMANENT VEGETATIVE COVER IS ESTABLISHED AND THE POTENTIAL FOR ON -SITE EROSION HAS PASSED. 2. A TEMPORARY CONSTRUCTION ENTRANCE SHALL BE ESTABLISHED TO THE SITE. THE STANDARDS AND MAINTENANCE REQUIREMENTS ARE AS FOLLOWS: A) INSTALLATION: THE PLANS PROVIDE THE LOCATION AND DIMENSIONS OF THE CONSTRUCTION ENTRANCE. THE AREA OF THE ENTRANCE SHALL BE ON COMPACTED BEARING GROUND, CLEARED OF ALL VEGETATION, ROOTS AND OTHER ORGANIC MATERIAL. A GRAVEL CONSTRUCTION ENTRANCE OR WHEEL WASH (OR BOTH) CAN BE SPECIFIED DEPENDING ON THE EROSION CONTROL PLAN. INCLUDE THE NOTES APPROPRIATE TO THE PLAN. B) GRAVEL CONSTRUCTION ENTRANCE SHALL BE 4" TO 8" QUARRY SPALLS OVER FILTER FABRIC CONSTRUCTED AT LEAST 12 INCHES THICK. IT MUST EXTEND THE FULL WIDTH OF THE VEHICULAR INGRESS AND EGRESS AREA AND THE MINIMUM LENGTH IS 100 FEET. C) WHEEL WASH SHALL BE CONSTRUCTED ACCORDING TO SPECIFICATIONS IN THE PLAN. THE DRAINAGE FACILITIES FOR THE WHEEL WASH MUST CARRY THE WASH WATER AWAY FROM THE ENTRANCE TO A SETTING AREA TO REMOVE SEDIMENT. THEY MUST CONTAIN ALL WASH WATER ON SITE WITH NO RELEASE. A WHEEL WASH SHOULD BE USED WHEN MUD IS NOT REMOVED FROM VEHICLE TIRES BY CONTACT WITH THE GRAVEL. A WASH RACK MAY ALSO BE USED TO MAKE WASHING MORE CONVENIENT AND EFFECTIVE. D) MAINTENANCE: THE PERFORMANCE STANDARD IS THAT THE CONSTRUCTION ENTRANCE MUST PREVENT TRACKING OF SEDIMENT, MUD OR DIRT OFF OF THE SITE. IT SHALL BE MAINTAINED AS NECESSARY TO MEET THIS STANDARD. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH NEW QUARRY SPALLS, AS CONDITIONS DEMAND, AND REPAIR AND/OR CLEAN OUT ANY STRUCTURES USED TO TRAP SEDIMENT. ALL MATERIALS SPILLED, DROPPED, WASHED OR TRACKED FROM VEHICLES ONTO ROADWAY OR INTO STORM DRAINS MUST BE REMOVED IMMEDIATELY. 3. PUBLIC STREETS ARE TO BE KEPT CLEAR OF DIRT AND DEBRIS DURING CONSTRUCTION EXCAVATION AND FILL OPERATIONS. MATERIAL SHALL BE REMOVED FROM THE STREETS BY SWEEPING. PAVED SURFACES MUST BE CLEANED AT THE END OF EACH DAY. 4. SEDIMENT CONTROL FACILITIES SHOWN ON THESE PLANS SHALL BE INSTALLED AS PART OF THE PLAN TO REMOVE SEDIMENT FROM THE WATER BEFORE CLEARING AND GRADING IS ALLOWED. THIS MAY INCLUDE SEDIMENT PONDS, SILT FENCES, SWALES, CHANNELS, BERMS, BARRIERS AND OTHER MEASURES. SEE THE CONSTRUCTION SEQUENCE FOR ORDER OF INSTALLATION. 5. THE CONSTRUCTION PLANS INDICATE INSTALLATION OF BEST MANAGEMENT PRACTICES (BMPS) TO RETAIN ALL SEDIMENT ON SITE. ADDITIONAL MEASURES ARE NORMALLY NEEDED TO REMOVE TURBIDITY AND MEET WATER QUALITY STANDARDS. DURING CONSTRUCTION, THE CONTRACTOR MAY REQUIRE ADDITIONAL MEASURES TO PREVENT SEDIMENT OR TURBID WATER FROM LEAVING THE SITE. CONTACT THE DESIGN ENGINEER (OR DESIGNATED EROSION CONTROL PERSON) FOR GUIDANCE ON ADDITIONAL MEASURES. 6. STABILIZE ALL EXPOSED AND NON -WORKED SOIL. A) FROM MAY 1 TO SEPTEMBER 30 NO UN -WORKED SOIL MAY REMAIN EXPOSED FOR MORE THAN 7 DAYS. B) IF PERMITTED, FROM OCTOBER 1 TO APRIL 30, NO SOIL MAY REMIAN EXPOSED FOR MORE THAN 2 DAYS. C) COVER DENUDED AREAS AS SPECIFIED IN ON THE PLANS BY APPROPRIATE COVER BMPS (SUCH AS MULCH, SOD, PLASTIC, & STRAW). D) COVER MATERIAL SHALL BE STOCKPILED ON SITE. E) SOIL STOCKPILES SHALL BE STABILIZED AND PROTECTED WITH SEDIMENT RETENTION BMPS WITHIN 24 HOURS. F) GRADING AND CONSTRUCTION SHALL BE TIMED AND CONSTRUCTED IN STAGES TO MINIMIZE SOIL EXPOSURE. CONSTRUCTION SHALL BE TIMED TO RECOGNIZE CONDITIONS CREATED BY THE WEATHER. 7. BEFORE CONSTRUCTION ACCEPTANCE BY THE COUNTY, THE APPLICANT SHALL ESTABLISH A PERMANENT VEGATATIVE GROUND COVER OR OTHERWISE CONTROL SOIL EROSION ON ALL AREAS OF LAND DISTURBANCE NOT COVERED BY IMPERVIOUS SURFACES. CONTRACTOR REPONSIBILITY FOR EROSION/SILTATION CONTROL: 1. IT IS THE INTENT OF THIS TEMPORARY EROSION AND SILTATION CONTROL PLAN THAT STORM WATER RUNOFF BE CONTROLLED AT ALL TIMES TO PREVENT SOIL EROSION AND TO MAINTAIN WATER QUALITY. ANY AND ALL MEASURES NECESSARY TO DO SO SHALL BE EMPLOYED BY THE CONTRACTOR. CONTRACTOR IS RESPONSIBLE FOR ONSITE CERTIFIED EROSION CONTROL SPECIALIST WHO WILL MONITOR THE SITE ON A REGULAR BASIS OR WHO IS "ON -CALL". 2. REGARDLESS OF SITE, WEATHER, SOIL OR OTHER CONDITIONS, THE CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR ENSURING THAT EROSION DOES NOT OCCUR ON THE SITE AND THAT POLLUTED OR SILT -LADEN RUNOFF DOES NOT LEAVE THE SITE OR ENTER INTO ANY CREEK, STREAM, WETLAND OR WATER BODY ON THE SITE. 3. BEYOND THE MINIMUM REQUIREMENTS SHOWN ON THIS PLAN, THE CONTRACTOR SHALL BE RESPONSIBLE FOR SELECTING AND IMPLEMENTING APPROPRIATE METHODS, 'BEST MANAGEMENT PRACTICES" (BMPS), FOR STORM WATER TREATMENT AND CONTROL THAT MEETS THE REQUIREMENTS OF BOTH THE WASHINGTON STATE DEPARTMENT OF ECOLOGY AND SNOHOMISH COUNTY. 4. THE OWNER IS RESPONSIBLE FOR ENSURING WATER QUALITY ON THE JOBSITE. PRIOR TO COMMENCEMENT OF SITE WORK, THE OWNER SHALL PROVIDE PDS DOCUMENTATION THAT A QUALIFIED WATER QUALITY SPECIALIST HAD BEEN RETAINED FOR THE PURPOSE OF PROVIDING WATER QUALITY MONITORING DURING CONSTRUCTION. A CONTACT PERSON, ON CALL 24 HOURS A DAY, SHALL BE IDENTIFIED FOR RAPID RESPONSE TO WATER QUALITY EMERGENCIES PRIOR TO CONSTRUCTION. 5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MONITORING WEATHER FORECASTS AND STORM ACTIVITY AND SHALL SCHEDULE ALL PROJECT ACTIVITIES IN ANTICIPATION OF THE WEATHER. 6. ALL SUPPLIES AND MATERIALS NECESSARY FOR IMPLEMENTING BMPs SHALL BE STORED ON SITE AND SHALL BE IMMEDIATELY AVAILABLE FOR USE. SUCH SUPPLIES AND MATERIALS SHALL INCLUDE, BUT NOT BE LIMITED TO, STRAW BALES OR OTHER MULCHING MATERIAL, SILT FENCING AND STAKES, FILTER FABRIC, ETC. 7. DURING AND AFTER RUNOFF PRODUCING STORM EVENTS, CONTRACTOR SHALL MONITOR ALL EROSION CONTROL MEASURES AND SHALL PRIORITIZE IMPLEMENTATION AND MAINTENANCE OF EROSION AND SILTATION CONTROL MEASURES ABOVE ALL OTHERS. 8. CONTRACTOR SHALL USE ASSIGNED STOCKPILE AREAS WITHIN THE PLAT DEVELOPEMENT FOR STORAGE AND HANDLING EXCAVATED SOILS. MAINTENANCE OF SILTATION BARRIERS: CITY OF EDMONDS PUBLIC WORKS DEPARTMENT GRATE R OVER FLOW HOLES CATCH BASIN 8 / NOTES: CATCH SON 1. CONTRACTORAEVELOPER SHALL AWNraN THIS APPLICA71ON AT ALL TIMES DURING CONSTRUCTION PERIOD. 2. ANY SEDIMENT IN CATCH BASIN INSERT SHALL BE REMOVED WHEN INSERT IS ONE-THIRD FULL. 3: CITY INSPECTION REQUIRED ON ALL EROSION CONTROL METHODS swow OTHER WORK CAN BBGYN. TEMPORARY SEDIMENT TRAP FOR CATCH BASINS APPROVED BYt R. ENSIM REVISION WE JANUARY 2018 STANDARD DETAIL ER-902 25' MIN RADIUS QLPJ?RY SPALLS 2-4' MIN DIA 12' MIN DEPTH 15' MIN PROVIDE FULL WIDTH OF INGRESS/EGRESS DETAIL NOTES: O THE MINIMUM LENGTH SHALL BE EXTENDED AS NECESSARY TO ENSURE MATERIAL IS NOT TRACKED OFF SITE AND/OR INTO THE PUBLIC RIGHT-OF-WAY. O2 ATB DRNEWAY RAMP AND/OR SITE ACCESS ROAD 15' WIDE MIN. SEE TABLE BELOW FOR REQUIRED LENGTH. N In TrC`. 1. SURFACE WATER - ALL SURFACE WATER FLOWING OR DIVERTED TOWARD CONSTRUCTION ENTRANCES SHALL BE PIPED ACROSS THE ENTRANM IF PIPING IS IMPRACTICAL A MOUNTABLE BERM WITH &I SLOPES WILL BE PERMITTED. 2. AWNTENANCE - THE ENTRANCE SHALL BE AAINTAINED IN A CONDRION WHICH WILL PREVENT TRACKING OR FLAWING OF SEDIMENT OFF SITE AND/OR ONTO PUBLIC RK#IT-OF-WAY. THIS MAY REQUIRE PERIODIC TOP DRESSING WRM ADDIITONAL QUARRY SPALLS AS CONDITIONS DEMAND AND REPAIR AND/OR CL6VM T OF ANY MEASUW USED TO TRAP SEDU/EWT. ALL SEDIMENT SPILLED, DROPPED, MASHED OR TRACK OFF SITE AND/OR ONTO PUBLIC RIGHT-OF-WAY MUST BE REMOVED IMMEDIATELY. 3. WHEELS SMALL BE CLEANED TO REM01 E SEDIMENT PRIOR TO LEAVING THE SITE WHEN WASHING IS USED, IT SHALL BE E ON AN AREA STABILIZED WITH QUARRY SPALLS AND WHICH DRAINS INTO AN APPROVED SEDIMENT TRAPPING DEVICE 4.1NSPEOWN AND NEEDED AWNTEWANCE SHALL BE PROVIDED AFTER EACH RAIN. PROJECT SLZE MIN LENGTH OF (FWo QUARRY SPALLS* < 1/4 ACRE 30 < 1 ACRE 50 < 3 ACRE 100 > 3 ACRE 100 *PROVIDE ATS OR ASPHALT TRANSITION WHERE FRONTAGE ROAD IS AN ARTERIAL LENGTH TO BE DETERMINED BY CITY INSPECTOIL CITY INSPECTION REQUIRED ON ALL EROSION CONTROL METHODS BEFORE OTHER WORK CAN BEGIN CITY OF EDMONDS STABILIZED CONSTRUCTION MMMMM PUBLIC WORKS ENTRANCE DEPARTMENT APPROVED Bit R. ENGLISH REVISION m JANUARY 2018 STANDARD DETAIL ER-901 2' x 2' WOOD/STEEL FILTER FABRIC SECURED TO 2" x 2" 14 GA WIRE FABRIC EQUAL '-o# 12# NATIVE LL MATEWL 8 FILTER FABRIC AATERAL IN CONTINOUS ROLLS USE STAPLE'S OR WRE RINGS TO ATTACH FABRIC TO WIRE 2' x 2' WOOD/STEEL POST51 �� 3.� 7 F m■o■■ , / ■■s■■ � i. 2-6' `BURY BOTTOM OF FILTER AATERAL 8' TO 12' 6MAX ►ar.wrmoSe oil fill Is `Sf 1B9 CITY OF EDMONDS PUBLIC WORKS DEPARTMENT SILTATION BARRIERS SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. CLOSE ATTENTION SHALL BE PAID TO THE REPAIR OF DAMAGED BALES, END RUNS AND UNDERCUTTING BENEATH BALES. NECESSARY REPAIRS TO BARRIERS OR REPLACEMENT OF BALES SHALL BE ACCOMPLISHED PROMPTLY. SEDIMENT DEPOSITS SHOULD BE REMOVED AFTER EACH RAINFALL. THEY MUST BE REMOVED WHEN THE LEVEL OF DEPOSITION REACHES APPROXIMATELY ONE-HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE STRAW BALE BARRIER IS NO LONGER REQUIRED SHALL BE DRESSED TO CONFORM TO THE EXISTING GRADE, PREPARED AND SEEDED. R E S U B Oct 12 2023 HANDLING OF SILT LADEN WATER: CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT 1. DURING GRADING OPERATIONS, EXTRA CARE SHALL BE EXERCISED TO AVOID RELEASE OF SILTY WATER FROM THE CONSTRUCTION SITE. RELEASES SHALL NOT INCREASE THE TURBIDITY OF SITE RUNOFF MORE THAN 5 NTU'S ABOVE BACKGROUND. 2. THE TEMPORARY SEDIMENT POND SHALL BE SAMPLED FOR TURBIDITY PRIOR TO DISCHARGE TO THE DOWNSTREAM CORRIDOR. PONDS WITH PERSISTENT TURBIDITY LEVELS EXCEEDING THE BACKGROUND BY MORE THAN 5 NTU'S SHALL BE PUMPED OUT AND SPRAYED INTO THICK NATIVE VEGETATION WITHIN THE PROPERTY OR TRUCKED OFF SITE FOR APPROVED DISPOSAL. ALL DISCHARGES MUST MEET CODE REQUIREMENTS OF SNOHOMISH COUNTY AND THE WASHINGTON STATE WATER QUALITY STANDARDS FOR TURBIDITY. 3. DISCHARGES NEAR SENSITIVE AREAS WILL NOT BE PERMITTED. IF SILTY WATER CANNOT BE SETTLED PRIOR TO DISCHARGE IT MUST BE TRUCKED TO A SAFE DISPOSAL AREA. COPYRIGHT © 2023 CITY INSPECTION REQUIRED ON ALL EROSION CONTROL METHODS BEFORE OTHER WORK CAN BEGIN FILTER FABRIC FENCE FILTRATION SYSTEMS AP rAM BY4 R. ENOLISH REVISION WE JANUARY 2018 STANDARD DETAIL ER-900 ENGINEERING DIVISION APPROVED. .10/17/2023