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STORMWATER POLLUTION PREVENTION PLAN (SWPPP): A PORTION OF THE S 1/2 OF SECTION 1 &THE N 1/2 OF SECTION 12,T 28 N, R 4 E,WM
<br /> THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING THE EROSION CONTROL MEASURES ; NND r I_
<br /> SHOWN OR DESCRIBED IN THE CONTRACT DOCUMENTS AND ANY ADDITIONAL MEASURES 1.ALL TEMPCRARY• •ON-SIZE CONVEYANCE CHANNELS SHALL BE DESIGNED,CONSTRUCTED AND _ NOTES •
<br /> THAT MAY BE REQUIRED O BYR THE ADCONTRACTORSMEANS AND METHODSUOF CONSTRUCTION STABILIZED TO PREVENT EROSION FROM THE EXPECTED PEAK 10 MINUTE VELOCITY OF FLOW FROM 1.Size the Below Inlet Grate Device BIGD for the storm water structure it will
<br /> AS NEEDED TO CONTROL EROSION AND SEDIMENTQUALI ,GROUND TND CAERRQUAON,OR SAED TEO A TYPE 1A,10-YR,24-HR REQUENCY STORM FOR THE DEVELOPED CONDITION.ALTERNATIVELY, service. ( )
<br /> MANAGE VIOLATION OF SURFACE EROSIONWNTCO OLL M SUR WATER QUAINT,OR SEDIMENT THE 10-YR,1-HR FLOW RATE INDICATED BY AN APPROVED CONTINUOUS RUNOFF MODEL, 2.The RIGID shall have a built-in high-flow relief system(overflow bypass).
<br /> THROUGHOUT
<br /> OUT THE COURSERF CONTROL AND UNTIL SHALL BE BEDMAIEARTHINED INCREASED BY A FACTOR OF 1.6,MAY.BE USED.THROUGHOUT THE OF CONSTRUCTOR UNTIL ALL DISTURBED EARTH IS 2,STABILIZATION,INCLUDING ARMORING MATERIAL,ADEQUATE TO PREVENT EROSION OF 3.The retrieval system must allow removal cite BIGD without spilling the
<br /> STABILIZED IN FINISH GRADES. OUTLETS,ADJACENT STREAM BANKS,SLOPES,AND DOWNSTREAM REACHES SHALL BE PROVIDED collected material
<br /> THE FOLLOWING DESCRIBES HOW THE CONSTRUCTOR SWPPP ADDRESSES EACH OF THE 12
<br /> AT THE OUTLETS OF ALL CONVEYANCE SYSTEMS. 4.Perform maintenance in accordance with Standard Specification 8-01.3(15).
<br /> REQUIRED ELEMENTS. REFER TO THESE PLANS FOR DRAWINGS OF THE PROJECT,VICINITY dl
<br /> MAP,SITE MAP,EROSION AND SEDIMENT CONTROL MEASURES,AND EROSION AND SUGGESTED BMPs/BMPs TO BE USED: --y 5"MAX �/
<br /> SEDIMENT CONTROL DETAILS. NOT APPLICABLE • DRAINAGE GRATE f TRIM �`t�' ,A0�/
<br /> Fl FMFNT 91: PRESERVE VFYFTATON/MARK CLEARING LIMITS_ • 1 i `5. „CP �'9'y 4P/..:p.q�'�'�
<br /> 1.PRIOR TO BEGINNING LAND DISTURBING ACTIVITIES(INCLUDING CLEARING AND GRADING M-� `�• rr IEC r 46 m N V� �``" e
<br /> ) 1.ALL POLLUTANTS,INCLUDING WASTE MATERIALS AND DEMOLITION DEBRIS, THAT OCCUR ...GRATE FRAME j �,■. Y >'9".&,..42,
<br /> y a' q'
<br /> CLEARLY MARK ALL CLEARING UNITS AND TREES THAT ARE TO BE PRESERVED'WITHIN THE ►' '�2
<br /> CONSTRUCTION AREA AS SHOWN ON THE DRAWINGS. ONSITE SHALL BE HANDLED AND DISPOSED OF.IN A MANNER THAT DOES NOT CAUSE / �0L0 ►,i Q"4.•'•`-4.4-.C2'.2,,
<br /> 2.
<br /> 2.SILT FENCE,GEOTEXTILE ENCASED BARRIERS,CONSTRUCTOR FENCE,ORANGE PLASTIC CONTAMINATION. COVEN.CONT INMENT.AND PROTECTION ROM VANDALISM SHALL BE PROVIDED FOR ALL IIIIII111I1II1j• '"e..._
<br /> FENCE,OR OTHER APPROVED MEASURES MAY BE USED TO MARK THE CLEARING LIMITS AT II II0
<br /> -
<br /> THE
<br /> THE CONTRACTOR'SF OPTION.
<br /> NATIVE TOPSOIL,AND NATURAL VEGETATION SHALL BE RETAINED IN POTENTIAL TOCHEMICALS, QPOSE AUID OTHREAT TO HUMAN HEADUCTS.PETROLEUM RTH OR THE ENVIUCTS,AND ERONMENT.ON-SITE FUELING THER MATERIALS THAT HAVE SEDIMENT ANO DEBRIS ` 1010 IIIhI1j °�'
<br /> TANKS SHALL INCLUDE SECONDARY CONTAINMENT. OVERFLOW BYPASS I1 ■.>• Z
<br /> SUGGEAN DISTURBED STATE TO THE STED BMPs/BMPs TO BE USED:MUM DEGREE PRACTICABLE. CONDUCTED USING SPILL3. MAINTENANCE, RG,AND REPAIR OF HEAVY PREVFJHTION AND CONTROL MQEASURES. ONTAMiT AND VEHICLES
<br /> NATER SURFACES111 s R=25'MIN. 12•MIN. 11IO�IIII ■■ r�V���EO - Q O
<br /> SHALL BE CLEANED IMMEDIATELY FOLLOWING ANY SPILL INCIDENT. _ ' 41 1t$011II J U O
<br /> BMP C103:HIGH VISIBILITY PLASTIC FENCE 4. WHEEL WASH OR TIRE BATH WASTEWATER SHALL BE DISCHARGED TOA SEPARATE ON-SITE `'' 4'-6'QUARRY SPALLS 1jI1�I) (n CO
<br /> ``kms BELOW INLET GRATE DEVICE PLACE GEOTEXTLE UNDER SPALLS y Rt` J ("�J
<br /> TREATMENT SYSTEM OR TO THE SANITARY SEWER WITH LOCAL SEWER DISTRICT APPROVAL. dt.46>y\
<br /> Fl FMENT V. FSTABI LOH CONSTRI ICTION ACCESS, 5. 'APPLICATION OF FERTILIZERS AND PESTICIDES,SHALL BE CONDUCTED IN A MANNER AND AT d 4 GEOTEXTILE SHALL MEET THE FOLLOWING STANDARDS 46y. - -7C N
<br /> 1. CONSTRUCTION VEHICLE ACCESS AND EXIT SHALL BE LIMITED TO ONE ROUTE.REFER - �o'�R� LL a
<br /> APPLICATION RATES THAT WILL NOT RESULT IN LOSS OF CHEMICAL TO STORMWATER RUNOFF. .! GRAB TENSILE STRENGTH(ASTM D-4751) =200 PSI MIN 5'" W
<br /> TO SWOP PLAN OF THESE PLANS FOR THE CONSTRUCTION ENTRANCE LOCATOR.ALL MANUFACTURERS'LABEL REQUIREMENTS FOR APPLICATION RATES AND PROCEDURES SHALL BE FILTERED GRAB TENSILE ELONGATION(ASTM D-4632) =30R MIN '.-
<br /> ACCESS/EXIT POINTS SHALL BE STABILIZED WITH QUARRY SPALLS,CRUSHED.ROCK OR FOLLOWED.
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<br /> WATER MULLEN BURST STRENGTH (ASTM D-3766-baa)=400 PS MIN10 CO W
<br /> OTHER EQUIVALENT BMP,TO MINIMIZE THE TRACKING OF SDIMENT ONTO PUBLIC ROADS. 6. BMPs SHALL BE USED TO PREVENT OR TREAT CONTAMINATION OF STORMWATER RUNOFF .AOS(ACTIN D-4751) =20-45(U.S.Sm SIEVE SIZE) p (n Z
<br /> 2. IF THE STABILIZED CONSTRUCTION ENTRANCE IS NOT EFFECTIVE IN PREVENTING BY pH MODIFYING SOURCES. THESE SOURCES INCLUDE,BUT ARE NOT LIMITED TO:BULK CEMENT, t Z v
<br /> SHALLSEDIMENT BE LOCATED OMNG TRACKED ONTO PUBUC ROADS,WHEEL WASH OR TIRE BATHS CEMENT KILN DUST,FLY ASH,NEW CONCRETE WASHING AND WRING WATERS,WASTE STREAMS -
<br /> MI
<br /> DETAIL-STABILIZED CONSTRUCTION ENTRANCE Q 0 Z W
<br /> TE. GENERATED FROM CONCRETE GRINDING ABS SAWING,EXPOSED AGGREGATE PROCESSES,AND
<br /> 3. IF SEDIMENT IS TRACKED OFF SITE,PUBUC OR PRIVATE ROADS SHALL BE CLEANED - CONCRETE PUMPING AND MIXER WASHOUT WATERS. PERMITTEES SHALL ADJUST THE pH OF REF: C.O.E.STD DETAIL 201 VO J
<br /> THOROUGHLY AT THE END OF EACH DAY.OR MORE FREQUENTLY DURING WET WEATHER. STORMWATER IF NECESSARY TO PREVENT VIOLATIONS OF WATER QUALITY STANDARDS. 'A 'A - NO SCALE I- 0 0 CO
<br /> SEDIMENT SHALL BE REMOVED FROM ROADS BY SHOVELING OR PICKUP SWEEPING AND 7. PERMITTEES SHALL OBTAIN WRITTEN APPROVAL FROM ECOLOGY PRIOR TO USING CHEMICALI- CO
<br /> SHALL BE TRANSPORTED TO A CONTROLLED SEDIMENT DISPOSAL AREA. TREATMENT,OTHER THAN CARBON DIOXIDE OR DRY ICE TO ADJUST pH.
<br /> 4.STREET WASHING IS ALLOWED ONLY AFTER SEDIMENT IS REMOVED AS DESCRIBED Z 7 M7
<br /> ABOVE.STREET WASH WASTEWATER SHALL BE CONTROLLED BY PUMPING BACK ON SITE SUGGESTED BMPs/BMPs TO BE USED: :0 C LZ TL M
<br /> OR OTHERWISE BE PREVENTED FROM DISCHARGING INTO SYSTEMS TRIBUTARY TO WATERS 8MP C150:MATERIAL ON HAND 1
<br /> OF THE STATE. - L"O m
<br /> s' - 6 LL
<br /> SUGGESTED BMPs/BMPs TO BE USED: FlF ENT 910: CONTROL DEWATERING - • • . `D.O.E. w
<br /> . BMP C105,D.O.E.BMP C140.. DEWATERING TO TAKE PLACE PRIOR TO PLACEMENT OF GEOTEXTILE MATERIAL ALL - `''7s; ! j- j- r. i 7 N Q
<br /> r4 "L F LW R 1 DEWATERING WILL BE CONDUCTED IN ACCORDANCE WITH D.O.E STANDARDS.ALL SECTION VIEW • �-Y 24' d
<br /> 1. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE STORMWATER THAT LEAVES THE PROJECT SITE WILL COMPLY WITH DISCHARGE :-'E-• I Z
<br /> PROTECTED FROM EROSON DUE TO INCREASES IN THE VELOCITY AND PEAK VOLUMETRIC REQUIREMENTS. _ - E L
<br /> FLOW RATE OF STORMWATER RUNOFF FROM THE PROJECT SITE. RETRIEVAL SYSTEM �'`�%D'�
<br /> DRAINAGE GRATE , IYp) 2'-4'ROCK
<br /> SUGGESTED BMPs/BMPs TO BE USED: • FI FMENT All: MAINTAIN BMPs -RECTANGULAR GRATE SHOWN
<br /> NOT APPLICABLE 1. INSPECT EROSION CONTROL DEVICES ON A WEEKLY BASIS AND AFTER EACH RUNOFF EVENT. 011101110111...-
<br /> - - ���.,
<br /> MAKE NECESSARY REPAIRS AND MAINTENANCE TO ENSURE CONTINUED PERFORMANCE OF EROSION i ?
<br /> Fl FMFNT 94: INSTAL' SEDIMENT CONTROLS AND SEDIMENT CONTROLS. (( r (( FLOW 00('P (g moi►7 24"
<br /> 1.THE DUFF LAYER.NATIVE SOIL,AND NATURAL VEGETATION SHALL BE RETAINED IN AN - �� 1 , � -,...re _
<br /> UNDISTURBED STATE TO THE MAXIMUM EXTENT PRACTICABLE. 2. WHEN SEDIMENT ACCUMULATION IN SEDIMENTATION STRUCTURES,OTHER THAN INLET - �Tfw��.�_� ;�!
<br /> 2. SEDIMENT CONTROL BMPs SHALL BE CONSTRUCTED AS ONE OF THE FIRST STEPS IN PROTECTION DEVICES,HAS REACHED A POINT ONE-THIRD DEPTH OF SEDIMENT STRUCTURE OR �. ,... „ '�rq'�-"'' - _„YG
<br /> GRADING. THESE BMPs SHALL BE FUNCTIONAL BEFORE OTHER LAND DISTURBING DEVICE,OR IF FLOW THROUGH THE DEVICE IS REDUCED BY MORE THAN ONE-THIRD CAPACITY,THE f
<br /> ACTIVITIES TAKE PLACE. CONTRACTOR SHALL REMOVE AND REPLACE DISPOSABLE DEVICES OR CLEAN AND DISPOSE OF - ROCK CHECK DAM SECTIONS '"
<br /> 3. PRIOR TO LEAVING THE CONSTRUCTION SITE,STORMWATER RUNOFF FROM DISTURBED SEDIMENT. - _ a.
<br /> ��' �.y
<br /> AREAS SHALL PASS THROUGH AN APPROPRIATE SEDIMENT REMOVAL BMP. RUNOFF FROM 3.,TEMPORARY EROSION AND SEDIMENT CONTROL BMPs SHALL BE REMOVED WITHIN 30 DAYS _ L THE DISTANCE SUCH THAT POINTS =a
<br /> FULL STABILIZED AREAS MAY BE DISCHARGED WITHOUT A SEDIMENT REMOVAL BMP,BUT OVERFLOW BYPASS 2
<br /> MUST MEET THE FLOW CONTROL PERFORMANCE STANDARD OF ELEMENT y3. AFTER FINAL SITE STABILIZATION IS ACHIEVED OR AFTER THE TEMPORARY BMPs ARE NO LONGER BELOW INLET GRATE DEVICE (NP) 1�" A&B ARE OF EQUAL ELEVATION "
<br /> NEEDED. TRAPPED SEDIMENT SHALL BE REMOVED OR STABIUZED ON SITE. DISTURBED SOILS
<br /> SUGGESTED BMPs/BMPs TO BE USED: • SHALL BE PERMANENTLY STABILIZED. - V♦ i' A B
<br /> BMP C233: TEMPORARY SILT FENCE y L I ''
<br /> FI FMFNT 912: MANAGE THE PROJECT 2 J_ )1
<br /> ELEMENT 95: STABILIZE SOILS 1.PHASING OF CONSTRUCTION: - �t -
<br /> 1. EXPOSED AND UNWORKED SOILS SHALL BE STABIUZED BY APPLICATION OF EFFECTIVE a)DEVELOPMENT PROJECTS SHALL BE PHASED WHERE FEASIBLE IN ORDER TO PREVENT,TO THE ISOMETRIC VIEW - 'I`.`` %YY�YJAy
<br /> AND8MPS WIND. DURING
<br /> PROTECT THE SOIL FROM EROSIVE FORCES OF RAINDROPS.FLOWING WATER, MAXIMUM DURING CONSTRNT UCTION.TICABLE,THE EVEGETATION OF EXPOS DORT FAREASENT AND AM7TMENNAE DEVELOPMENT SITE - DETAILA -STORM DRAIN INLET PROTECTION -
<br /> . SUMP
<br /> 2. TO PREVENT EROSION,NO SOILS SHALL REMAIN EXPOSED AND UNWORKED FOR MORE VEGETATION SHALL BE AN INTEGRAL PART OF THE CLEARING ACTIVITIES FOR ANY PHASE. REF: WSDOT STD PLAN I-40.20-00 -
<br /> THAN THE TIME PERIODS SET FORTH BELOW: b)CLEARING AND GRADING ACTIVITIES FOR DEVELOPMENTS SHALL BE PERMITTED ONLY IF NO SCALE
<br /> DURING THE WET SEASON(OCTOBER 1-APRIL 30):2 DAYS CONDUCTED PURSUANT TO AN APPROVED SITE DEVELOPMENT PLAN(e.g.,SUBDIVISION SPACING BETWEEN CHECK DAMS
<br /> DURING THE DRY SEASON(MAY 1-SEPT.30):7 DAYS - APPROVAL)THAT ESTABUSHES APPROVED AREAS OF CLEARING.GRADING,CUTTING AND FIWNG. V O
<br /> THIS STABIUZATION REQUIREMENT APPLIES TO ALL SOILS ON SITE,WHETHER AT FINAL WHEN ESTABLISHING THESE PERMITTED CLEARING AND GRADING AREAS CONSIDERATION SHOULD S.W.P.P.P.GENERAL NOTES z R
<br /> GRADE OR NOT. THESE TIMES MAY BE ADJUSTED BY THE LOCAL PERMITTING AUTHORITY BE GIVEN TO MINIMIZING REMOVAL OF EXISTING TREES AND MINIMIZING DISTURBANCE AND
<br /> IF IT CAN BE SHOWN THAT SITE CONDITIONS OR THE AVERAGE TIME BETWEEN STORM - COMPACTION OF NATIVE SOILS EXCEPT AS NEEDED FOR BUILDING PURPOSES.THESE PERMITTED NOTE 1: STRUCTURAL FILL DETAIL- ROCK CHECK DAM n u! --
<br /> JUSTIFIES A DIFFERENT STANDARD. CLEARING AND GRADING AREAS AND ANY OTHER AREAS REQUIRED TO PRESERVE CRITICAL OR - ALL FILL USED ON THE PROJECT SHALL BE STRUCTURAL.Fal MATERIAL NOTE 5: MONITORING AND TESTING 0),S-
<br /> EVENTS 01
<br /> STRUCTURAL FILL SHALL CONSIST OF PROPERLY MOISTURE.CONDITIONED THE OWNER WILL EMPLOY THE GEOTECHNICAL ENGINEER GEOENGNERS TO REF: C.O.E.STD DETAIL 206 Z W m rn
<br /> 3. SOILS SHALL BE STABILIZED AT THE END OF THE SHIFT BEFORE A HOLIDAY OR SENSITIVE AREAS, REQUIRED
<br /> NATIVE GROWTH PROTECTION EASEMENTS,OR TREE RETENTION ( ) i m OS
<br /> WEEKEND IF NEEDED BASED ON THE WEATHER FORECAST. AREAS AS MAY BE REOUIRD BY LOCAL JURISDICTIONS,SHALL BE DELINEATED ON THE SITE AND COMPACTED ON-SITE ALL SOILS OR IMPORTED GRANULAR MATERIAL OBSERVE EARTHWORK ACTIVITIES AND TO TEST STRUCTURAL FILL PLACED NO SCALE. - <1- .
<br /> 4. SOIL STOCKPILES SHALL BE STABILIZED FROM EROSION,PROTECTED WITH SEDIMENT PLANS AND THE DEVELOPMENT SITE SUCH AS PIT RUN.SAND AND GRAVEL THAT IS FREE OF DEBRIS,ORGANIC ON THE SITE.THE CONTRACTOR SHALL FACILITATE OBSERVATIONS AND >< CL 9 4�O
<br /> TRAPPING MEASURES,AND WHERE POSSIBLE,BE LOCATED AWAY FROM STORM DRAIN - _ CONTAMINANTS,OR ROCK FRAGMENTS LARGER THAN 6 INCHES. TESTING BY THE OWNERS REPRESENTATIVES AS NEEDED. W- RI '
<br /> INLETS,WATERWAYS.AND DRAINAGE CHANNELS. 2.SEASONAL WORK LIMITATIONS: COMPACTION SHALL BE ACHIEVED BY MECHANICAL MEANS AND A m L u1
<br /> SEEDING.SODDING,MULCHING,PLASTIC 5. APPLICABLE BMPs INCLUDE,BUT RCOVERING,EROSION CONTROL E NOT LIMITED TO: RFABRICS ANY AND PERMANENT FROM
<br /> SHALL ONLY BE PERMITTED IUGH APRIL 30,F SHOWN TOEARING, R TiHE SATISFACTION OF THE LOCAL PERMITTING VIBRATORYNG,AND OTHER SOIL DISTURBING O RTOLLR.ALL ROLLER SFILL CSHALL BED COMIN PACTED TO THE DITION TO A REQ REDRUM nCONRACTOR TO PROVIDE ALL WASHINGTON STATE DEPARTMENT OF a.-� of - 3 i
<br /> MATTING,SOIL APPLICATION OF POLYACRYLAMIDE(PAM),THE EARLY APPUCATION OF AUTHORITY THAT THE TRANSPORT OF SEDIMENT FROM THE CONSTRUCTION SITE TO RECEIVING PERCENTAGE OF THE MAXIMUM DRY DENSITY(MOD)PER AMERICAN SOCIETY ECO OGYY CESCLECSERVICES INCLUDING STORMWATER MONITORING.RECORDING xEvnsdwrsn�w \ F - m a
<br /> GRAVEL BASE ON AREAS TO BE PAVED AND DUST CONTROL SELECT SOIL STABILIZATION WATERS WALL BE PREVENTED THROUGH A COMBINATION OF THE FOLLOWING: FOR TESTING AND MATERIALS(ASTM)D 1557. - as.usssosor } a
<br /> MEASURES SHALL BE APPROPRIATE FOR THE TIME OF YEAR,SITE CONDITIONS,ESTIMATED a)SITE CONDITIONS INCLUDING EXISTING VEGETATIVE COVERAGE.SLOPE.SOIL TYPE,AND PROXIMITY w + Q N >
<br /> DURATION OF USE,AND THE POTENTIAL WATER QUALITY IMPACTS. TO RECEIVING WATERS;AND NOTE 2: SITE GRADING NOTE 7: OVERFLOW NOTE: - I L O a 2AR W
<br /> ALL OVERFLOWS AND OTHER DISCHARGE OF CONSTRUCTIONr#1£9°H.6. REMOVE ALL TESL MEASURES AS SOON AS PRACTICAL AFTER ESTABLISHMENT OF b).UMITATONS ON ACTIVITIES AND THE EXTEND OF DISTURBED AREAS;AND ALL ALL AND BACKFILL SHALL BE PLACED IN THIN LIFTS(APPROXIMATELY 6THRESHOLDS. - M1w2,,wA. O O o
<br /> UNIFORM GRASS GROWTH OR INSTALLATION OF OTHER PERMANENT STABILIZATION INCHES)SO THAT UNIFORM COMPACTION CAN BE ACHIEVED THROUGHOUT STORMWATER MUST COMPLY WITH TURBIDITY I ] Z a
<br /> c)PROPOSED EROSION AND SEDIMENT CONTROL MEASURES. �� $ Q 'c
<br /> MEASURES. REPAIR ANY DAMAGE TO STABIUZED SURFACES AFTER REMOVAL OF TESL THE ENTIRE UFT THICKNESS.ALL PLACED WITHIN 24 INCHES OF ROUGH I Q
<br /> MEASURES. - BASED ON THE INFORMATION PROVIDED AND LOCAL WEATHER CONDITIONS,THE PROJECT LEAD MAY GRADE SHALL BE COMPACTED TO AT LEAST 95 PERCENT MOD PER ASTM D NOTE 8: STABILIZATION NOTE:
<br /> EXPAND OR RESTRICT THE SEASONAL LIMITATION ON SITE DISTURBANCE.THE PROJECT LEAD SHALL 1557.ALL AND BACKFILL MORE THAN 24 INCHES BELOW ROUGH GRADE PARKING AREA STABILIZATION IS THE PREFERRED BMP FOR ANY
<br /> v SUGGESTED BMPs/BMPs TO BE USED: - TAKE ENFORCEMENT ACTION-SUCH AS NOTICE OF VIOIATION,ADMINISTRATIVE ORDER,PENALTY, SHALL BE COMPACTED TO AT LEAST 92 PERCENT MDD PER ASTM D 1557. EXPOSED SOIL WITHIN THE PARKING LOT.TO PREVENT EROSION.NO I P d
<br /> >< BMP CI20: TEMPORARY AND PERMANENT SEEDING OR STOP-WORK ORDER UNDER THE FOLLOWING CIRCUMSTANCES: IF CUTS ARE REQUIRED ACROSS TH SITE TO ACHIEVE GRADE,THEN THE SOILS SHALL REMAIN EXPOSED AND UNWORKED FOR MORE THAN 2 I
<br /> BMP 0140:DUST CONTROL - EXISTING SOILS SHALL BE CUT T0'2 FEET BELOW ROUGH GRADE, DAYS DURING THE WET SEASON AND 7 DAYS DURING THE DRY _ ,.,, ,�.
<br /> OI -IF,DURING THE COURSE OF ANY CONSTRUCTION ACTIVITY OR SOIL DISTURBANCE DURING THE SEASON.CONTRACTOR TO UTILIZE OTHER COVER PRACTICES AS M""'I''"HP
<br /> SEASONAL LIMITATION PERIOD,SEDIMENT LEAVES THE CONSTRUCTION SITE CAUSING A VIOLATION PROOF-ROLLED,AND THEN THE UPPER 2 FEET SHALL BE REPLACED'NTH
<br /> Fl FMFNT 9fi: PROTECT SI APES STRUCTURAL FILL COMPACTED TO AT LEAST 95 PERCENT OF THE MAXIMUM NECESSARY TO COMPLY WITH SEASONAL GRADING CONSTRAINTS. .waM�nn _. REVISIONS: APPD.
<br /> w 1. DESIGN,CONSTRUCT,AND PHASE CUT AND FILL SLOPES IN A MANNER THAT WILL OF THE SURFACE WATER QUALITY STANDARD;ORY --- --' - -
<br /> -IF CLEARING AND GRADING OMITS OR EROSION AND SEDIMENT CONTROLS MEASURES SHOWN IN DRY DENSITY.
<br /> MINIMIZE EROSION. APPLICABLE PRACTICES INCLUDE,BUT ARE NOT LIMITED TO,REDUCING7T{ V
<br /> PRIOR TO PLACING NEW ALL THE EXPOSED SUBGRADE ACROSS THE SITE 1 I
<br /> L6:- CONTINUOUS LENGTH OF SLOPE WITH TRRACING AND DIVERSIONS,REDUCING SLOPE THE APPROVED PLAN ARE NOT MAINTAINED. - : e, - -
<br /> o SHALL BE EVALUATED BY PROOF-ROVING USING A PIECE OF HEAVY - •+-y I
<br /> STEEPNESS.AND ROUGHENING SLOPE SURFACES (e.g..TRACK WALKING). FI FMFNT 917: MANAGE THE PROJECT(CONTINUED) TIRE-MOUNTED EQUIPMENT OR A LOADED DUMP TRUCK. ALL SOFT AREAS I E
<br /> •
<br /> 2. OFF-SITE STORMWATER RUN-ON OR GROUNDWATER SHALL BE DIVERTED AWAY FROM THE PROOF-ROLL SHALL 8E REMOVED AND REPLACED U f..
<br /> w THE FOLLOWING ACTIVITIES ARE EXEMPT FROM THE SEASONAL CLEARING AND GRADING IMITATIONS. IDENTIFIED DURING
<br /> SLOPES AND DISTURBED AREAS WITH INTERCEPTOR DIKES,PIPES, AND/OR SHALES a)ROUTINE MAINTENANCE AND NECESSARY REPAIR OF EROSION AND SEDIMENT CONTROL BMPs; VATH STRUCTURAL FILL AFTER PROOROWNG,THE SUBGRADE AREAS SHALL -
<br /> OFF-SITE STORMWATER SHOULD BE MANAGED SEPARATELY FROM STORMWATER BE THOROUGHLY COMPACTED TO A FIRM AND UNYIELDING CONDITION. - secnoN Am
<br /> S GENERATED ON THE SITE.i ,.;_. b)ROUTINE MAINTENANCE OF PUBLIC FACILITIES OR EXISTING UTILITY STRUCTURES THAT DO NOT
<br /> 0 EXPOSE THE SOIL OR RESULT IN THE REMOVAL OF THE VEGETATIVE COVER TO SOIL;AND
<br /> 3. DO NOT CLEAR AND GRUB SLOPES GREATEN THAN 4(HORIZONTAL):1(VERTICAL) NOTE 3: .REGRADED SLOPES e11FRIO.10.O MAMMAL
<br /> UNLESS FURTHER WORK RESULTING IN STABILIZATION OF THE SLOPES TO BE CLEARED AND c)ACTIVITIES WHERE THERE IS ONE HUNDRED PERCENT INFILTRATION OF SURFACE WATER RUNOFF ALL REGARDED SLOPES SHALL BE NO STEEPER THAN 2H:1V.THE OUTER 10 �rr' rOa T..411
<br /> GRUBBED IS SCHEDULED. WITHIN THE SITE IN APPROVED AND INSTALLED EROSION AND SEDIMENT CONTROL FACILITES exmr Nr vrreaarW ,....2 4 rscwea
<br /> i 4. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES, FEET(HORIZONTAL DISTANCE)FROM FINISHED GRADE OF ALL REGRADED /M�T,,m,1�, wn :Aw
<br /> r3 3.COORDINATE WITH UTILITIES AND OTHER CONTRACTORS SLOPES SHALL BE REMOVED AND CENTREPLACED FWITH STRUCTURAL ALL \ n cavo s
<br /> CONSISTENT WIT'SAFETY AND SPACE CONSIDERATIONS COMPACTED TO AT LEAST 90 PERCENT THE MDD PER ASTM D 1557. I .;p I
<br /> 5. CHECK DAMS SHALL BE PLACED AT REGULAR INTERVALS WITHIN CONSTRUCTED THE PRIMARY PROJECT PROPONENT SHALL EVALUATE,WITH INPUT FROM UTILITIES AND OTHER STRUCTURAL ALL SHALL BE PLACED IN APPRO%IMAIELY 6 RICH LOOSE ■ y
<br /> CONTRACTORS,THE STORMWATER MANAGEMENT REQUIREMENTS FOR THE ENTIRE PROJECT,INCLUDING ,�''I®■®■��
<br /> CHANNELS THAT ARE WT DOWN ASLOPE.- LIFTS PRIOR TO COMPACTION. ALL REGRADED SLOPES SHALL BE OVERBUILT
<br /> 0 -
<br /> THE UTILITIES,WHEN PREPARING THE CONSTRUCTION SWPPP. '7J g2 DATE: APRIL 18,2017
<br /> BY CTS LEAST 2 FEET AND ERCUT BACK TO DESIGN GRADEILLPRIOR TO I 1IEI®■■®1A
<br /> SUGGESTED BMPs/BMPs TO BE USED: PLACING LANDSCAPING MATERIALS.THE BOTTOM OF THE FILL ZONE SHALL 1
<br /> 4. INSPECTION AND MONITORINGDESIGN: JNM
<br /> BMP C120: TEMPORARY AND PERMANENT SEEDING - BE KEYED INTO THE EXISTING SOILS BY AT LEAST 3 FEET BELOW ADJACENTfa
<br /> ■r■
<br /> SITE INSPECTION SHALL BE CONDUCTED BY A PERSON WHO IS KNOWLEDGEABLE IN THE PRINCIPLES GRADE. THE STRUCTURAL ALL MATERIALS SHALL BE BENCHED INTO THE r ■ 1�1®.®®1� DRAWN: CO
<br /> o „ N • P:C CT I L:N IN AND PRACTICES OF EROSION AND SEDIMENT CONTROL AT LEAST ONCE EVERY CALENDAR WEEK TEMPORARY CUT SLOPE AT LEAST 4 FEET HORIZONTALLY FOR EVERY 2 I - CHECKED:
<br /> 1.ALL STORM DRAIN INLETS OPERABLE DURING CONSTRUCTION AND ALL INLETS WITHIN AND WITHIN 24 HOURS OF ANY RAINFALL EVENT.THIS PERSON HAS THE SKILLS T0: FEET VERTICAL THE SLOPES SHALL BE TRACK WALKED PRIOR TO PLACING I I �,��■®�, REVISION
<br /> '' 200'DOWNSTREAM OF THE PROJECT SITE SHALL BE PROTECTED WITH CATCH BASINLANDSCAPE MATERIALS AND HYDROSEEDINGI 1
<br /> Es'
<br /> a)ASSESS THE SITE CONDITIONS AND CONSTRUCTION ACTIVITIES THAT COULD IMPACT THE QUAINT �. I '�-®I� NUMBER:
<br /> FILTERS SO THAT STORMWATER RUNOFF DOES NOT ENTER THE CONVEYANCE SYSTEM OF STORMWATER,AND NOTE 4: FILL SLOPES 1 4
<br /> -- WITHOUT FIRST BENG ALTERED OR TREATED TO REMOVE SEDIMENT. CATCH BASIN FILTERS b)ASSESS THE EFFECTIVENESS OF EROSION AND SEDIMENT CONTROL MEASURES USED TO CONTROL AIL NEW SLOPES SHALL BE NO STEEPEN THAN 2H:IV.IF EXISTING FILL IS d Y II SCALE:
<br /> IN THE ROADWAY WILL BE OIL/SEDIMENT ALTERS AND CATCH BASIN ALTERS OUTSIDE THE QUAUTY OF STORMWATER DISCHARGES.
<br /> OF THE ROADWAY WILL BE SEDIMENT FILTERS. THE OUTER 10 FEET(HORIZONTAL DISTANCE)FROM FINISHED GRADE
<br /> H v 2 APPROACH ROADS SHALL BE KENT CLEAN. SEDIMENT AND STREET WASH WATER OF ALL SLOPES,THEN EXISTING FILL SHALL BE REMOVED TOA DISTANCE - I.I I I I' I.I I I .
<br /> SHALL NOT BE ALLOWED TO ENTER STORM DRAINS WITHOUT PRIOR AND ADEQUATE IF INSPECTION AND/OR WATER MONITORING OF SITE RUNOFF REVEALS THAT THE BMPs IDENTIFIED IN OF AT LEAST 10 FEET FROM 1/1E SLOPE FACE AND BE REPLACED WITH - PROJECT NUMBER:
<br /> RILL
<br /> m TREATMENT. - THE CONSTRUCTION SWPPP ARE INADEQUATE.THE CONTRACTOR SHALL IMMEDIATELY ADD BMPs TO STRUCTURAL ALL COMPACTED TO AT LEAST 90 P1557. STRUCTURAL FILL SHALL BE PLACED IN APPROXIMATELY 6PERCENT OF THE MOD PER I�'\u ` I I a'�-J I I I I -
<br /> THE SWPPP AS NECESSARY. ASTM D
<br /> (NO 3. INLET PROTECTOR DEVICES SHOULDBE CLEANED OR REMOVED AND REPLACED WHEN �L ULi UGDX0003
<br /> SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE STORAGE(OR WHEN FILLED WITH ELEMENT#13: PROTECT LOW IMPACT DEVELOPMENT BMPs INCH LOOSE'FTS PRIOR TO COMPACTION. ALL FILL SLOPES SHALL BE =vans
<br /> m SIX-INCHES OF SEDIMENT). - 1.AREAS ON-SITE WHICH UTIUZE STORMWATEER MANAGEMENT BMPs SHALL BE PROTECTED FROMOVERBUILT BY AT LEAST 2 FEET AND THEN CUT BACK TO DESIGN GRADE
<br /> ELEVATION DRAWING FILE:
<br /> SILTATION AND COMPACTION DURING THE CONSTRUCTION PROCESS. PRIOR TO PLACING LANDSCAPING MATERIALS.THE BOTTOM OF THE ALL
<br /> m BMPs TO BE USED: a)DO NOT ALLOW MUDDY CONSTRUCTION EQUIPMENT ON BASE MATERIAL OR PAVEMENT.DO NOT ZONE SHALL BE KEYED INTO THE EXISTING SOILS BY AT LEAST 3 FEET .::/CITY OF EVERETT TEMPORARY SILT FENCE 5�i1 f2D11 EC-004-EC-UGDX0003�EDEX.dwg
<br /> mBELOW ADJACENT GRADE THE STRUCTURAL FILL MATEF1ALS SHALL BE
<br /> BMP C220: STORM DRAIN INLET PROTECTION WSDOT STD PLAN 1-40.20-00 'ALLOW SEDIMENT-LADEN RUNOFF ONTO PERMEABLE PAVEMENTS OR BASE MATERIALS. Al DEPARTMENTu2-14
<br /> ( ) BENCHED INTO THE TEMPORARY CUT SLOPE AT LEAST 4 FEET
<br /> BMP C233: SILT FENCE b)PAVEMENT FOULED WITH SEDIMENTS CR NO LONGER PASSING AN INITIAL INFILTRATION TEST HORIZONTALLY FOR EVERY 2 FEET VERTICAL THE SLOPES SHALL BE • :OF 14 Oaa.
<br /> - MUST BE CLEANED USING PROCEDURES IN ACCORDANCE WITH THE CURRENT DOE MANUAL OR TRACK WALKED PRIOR TO PLACING LANDSCAPE MATERIALS AND - - - SHEET NO.
<br /> $ CALLKENPFACTURERS PROCEDURES. HYDROSEEDING. • - /'\ 0 1
<br /> • c)KEEP ALL HEAVY EQUIPMENT OFF EXISTING SOILS UNDER UD FACILITIES THAT HAVE BEEN
<br /> <3 2 BUSINESS DAYS EXCAVATED.TO ANAL GRADE TO RETAIN THE INFILTRATION RATE OF THE SOILS. /V"
<br /> BEFORE YOU DIG -
<br /> el FOR UTILITY LOCATE SUGGESTED BMPs/BMPs TO BE USED:
<br /> O
<br /> N 1-800-424-5555 BMP C103: HIGH VISIBILITY FENCE
<br /> 8MP C233: SILT FENCE _ OF 12
<br />
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