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A PORTION OF THE NW 1/4, SECTION 12, T 28 N, R 4 E, WM
<br /> STORMWATER POLLUTION PREVENTION PLAN (SWPPP):
<br /> THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING THE EROSION CONTROL MEASURES ELEMENT/7: PROTECT DRAIN INLETS FI FMFNT MIT: MANAGF_THE PROJECT(CONTINUED) FA
<br /> SHOWN OR DESCRIBED IN THE CONTRACT DOCUMENTS AND ANY ADDITIONAL MEASURES 1.ALL STORM DRAIN INLETS OPERABLE DURING CONSTRUCTION AND ALL INLETS WITHIN THE FOLLOWING ACTIVITIES ARE EXEMPT FROM THE SEASONAL CLEARING AND GRADING
<br /> THAT MAY BE REQUIRED BY THE CONTRACTORS MEANS AND METHODS OF CONSTRUCTOR 200'DOWNSTREAM OF THE PROJECT SITE SHALL BE PROTECTED WITH CATCH BASIN LIMITATIONS:FOF /per FFMM1/I _,.
<br /> AS NEEDED TO CONTROL EROSION AND SEDIMENT AT THE CONSTRUCTION SITE AND TO FILTERS SO THAT STORMWATER RUNOFF DS NOT ENTER THE CONVEYANCE SYSTEM a)ROUTINE MAINTENANCE AND NECESSARY REPAIREROSION AND SEDIMENT CONTROL / �-
<br /> PREVENT VIOLATION OF SURFACE WATER QUALITY,GROUND WATER QUAUTY,OR SEDIMENT WITHOUT FIRST BEING FILTERED OR TREATED TO REMOVE SEDIMENT. CATCH BASIN FILTERS BMPs; �+ +y"�-.1-4-ct-�y, CD
<br /> MANAGEMENT STANDARDS. EROSION CONTROL MEASURES SHALL BE MAINTAINED IN THE ROADWAY WILL BE OIL/SEDIMENT FILTERS AND CATCH BASIN FILTERS OUTSIDE b)ROUTINE MAINTENANCE OF PUBUC FACIUTIES OR EXISTING UTIUTY STRUCTURES THAT 00
<br /> THROUGHOUT THE COURSE OF CONSTRUCTION AND UNTIL ALL DISTURBED EARTH IS OF THE ROADWAY WILL BE SEDIMENT FILTERS. DO NOT EXPOSE THE SOIL OR RESULT IN THE REMOVAL OF THE VEGETATIVE COVER TO .��' -s�T°�,@- `'�
<br /> STABILIZED IN FINISH GRADES. 2. APPROACH ROADS SHALL BE KEPT CLEAN. SEDIMENT AND STREET WASH WATER SOIL; AND LWr�•� Gh��`'3`,� 'Si'
<br /> THE FOLLOWING DESCRIBES HOW THE CONSTRUCTION SWPPP ADDRESSES EACH OF THE 12 SHALL NOT
<br /> BE ALLOWED TO ENTER STORM DRAINS WITHOUT PRIOR AND ADEQUATE c)ACTIVITIES WHERE THERE IS ONE HUNDRED PERCENT INFILTRATION OF SURFACE WATER MMQ1111111111 `Q'a CO
<br /> REQUIRED ELEMENTS. REFER TO THESE PLANS FOR DRAWINGS OF THE PROJECT,VICINITY RUNOFF WITHIN THE SITE IN APPROVED AND INSTALLED EROSION AND SEDIMENT /MM 11 �'
<br /> MAP,
<br /> MAP,EROSION AND SEDIMENT
<br /> OL
<br /> URES.
<br /> SEDIMENTTFIFMENT CONTROL DET IVFFTATION/MARKNCIFARINGASNITS. AND EROSION AND SEDIMENTLS. SIX-INCHES IAS FFISEDIMENT).CD TMIRDHOF THE LAVALAB E STORAGE(OR WHENFILLEDWITHEN TMCOORDINATE E INROJECT PROPONENTSAOTHER SHALL EVA
<br /> LUATE,ORI7H INPUT FROM UTILITIES AND 10TROL FACILITES. ," 114.
<br /> MIN. 12-MN1111j1j11j0p�1 � 4 W LLI
<br /> 1.PRIOR TO BEGINNING LAND DISTURBING ACTIVITIES(INCLUDING CLEARING AND GRADING) BMPs TO BE USED: OTHER CONTRACTORS,THE STORMWATER MANAGEMENT REQUIREMENTS FOR THE ENTIRE 11•1104,4,*
<br /> Wi�./A1 \ (y 0
<br /> CLEARLY MARK ALL CLEARINGGLAN UNITS AND TREES THAT ARE BE PRESERVED WITHIN TE BMP C220: STORM DRAIN INLET PROTECTION(WSDOT STD PLAN 1-40.20-00) PROJECT,INCLUDING THE UTILITIES,WHEN PREPARING THE CONSTRUCTION SWPPP. 4--8-QUARRY SPALLS ' 11111 x/11 . / w Z_
<br /> TOBMP C233: SILT FENCE 1A '
<br /> CONSTRUCTION AREA AS SHOWN ON THE DRAWINGS. PLACE GEOTEXALL UNDER SPALLS ,�, •cr J
<br /> 2.SILT FENCE,GEOTEXTILE ENCASED BARRIERS,CONSTRUCTION FENCE,ORANGE PLASTIC4. INSPECTION AND MONITORING: 1,W-AW., \ Z X=
<br /> GEOTEI(TILL SHALL MEET THE FOLLOWING STANDARDS:
<br /> FENCE.OR OTHER APPROVED MEASURES MAY BE USED TO MARK THE CLEARING UNITS AT 1..ALL MP: ARY OH- CHANNELS AND OUTLETS ' En - Z W fn
<br /> THE CONTRACTOR'S OPTION. 1.ALL TEMPORARY ON-SITE CONVEYANCE CHANNELS SHALL BE DESIGNED, E VELOCITY SITE INSPECTION SHALL BE CONDUCTED BY A PERSON WHO IS KNOWLEDGEABLE IN THE GRAB TENSILE STRENGTH(ASTM D-4751) =200 PSI MIN 8 J W .,Q
<br /> AND STABILIZED TO PREVENT EROSION FROM THE EXPECTED PEAK 10 MINUTE VELOCITY OF PRINCIPLES AND PRACTICES OF EROSION AND SEDIMENT CONTROL AT LEAST ONCE GRAB TENSILE ELONGATION(ASIA D-4632) =30%MIN e,
<br /> 3.THE DUFF LAYER,NATIVE TOPSOIL,AND NATURAL VEGETATION SHALL BE RETAINED IN FLOW FROM A TYPE 1A,10-T3,24-HR FREQUENCY STORM FOR THE DEVELOPED EVERY CALENDAR WEEK AND WITHIN 24 HOURS OF ANY RAINFALL EVENT.THIS PERSON MULLEN BURST STRENGTH (ASTM D-3786-800)-400 PSI MIN Q W
<br /> AN UNDISTURBED STATE TO THE MAXIMUM DEGREE PRACTICABLE. CONDITION.ALTERNATIVELY,THE 10-YR,1-HR FLOW RATE INDICATED BY AN APPROVED HAS THE SKILLS TO: AOS(ASTM D-4751) =20-45(U.S.SID SIEVE SZE) L J I- 0 U
<br /> CONTINUOUS RUNOFF SUGGESTED BMPs/BMPs TO BE USED: 2.STABI ZATION,IN INCLUDING FACTORL INCREASED BY A E USED.
<br /> G ARMORING MATERIAL ADEQUATE TO PREVENT EROSION OF a)AQUAAUUTY OF STORMWSS THE SITE A
<br /> TER,O
<br /> ATER,CONDITIONS CONSTRUCTION ACTIVITIES THAT COULD IMPACT THE DETAIL-STABILIZED CONSTRUCTION ENTRANCE aZ (n LU
<br /> BMP C103: HIGH VISIBILITY PLASTIC FENCE OUTLETS.ADJACENT STREAM BANKS,SLOPES,AND DOWNSTREAM REACHES SHALL BE b)ASSESS THE EFFECTIVENESS OF EROSION AND SEDIMENT CONTROL MEASURES USED TO . . - . . - ._ d wPROVIDED AT THE OUTLETS OF ALL CONVEYANCE SYSTEMS. CONTROL THE QUALITY OF STORMWATER DISCHARGES. REF: C.O.E.STD DETAIL 201 W
<br /> ,.a. : .. I: I E. NO SCALE d Ui O w W
<br /> 1. CONSTRUCTION VEHICLE ACCESS AND EXIT SHALL BE UNITED TO ONE ROUTE.REFER SUGGESTED BMPs/BMPs TO BE USED: IF INSPECTION AND/OR WATER MONITORING OF SITE RUNOFF REVEALS THAT THE BMPs d
<br /> TO SWPP PLAN OF THESE PLANS FOR THE CONSTRUCTON ENTRANCE LOCATION.ALL NOT APPUCABLE IDENTIFIED IN THE CONSTRUCTION SWPPP ARE INADEQUATE.THE CONTRACTOR SHALL
<br /> ACCESS/EXIT POINTS SHALL BE STABIUZED WITH QUARRY SPALLS,CRUSHED ROCK OR IMMEDIATELY ADD BMPs TO THE SWPPP AS NECESSARY.
<br /> OTHER EQUIVALENT BMP.TO MINIMIZE THE TRACKING OF _SEDIMENT ONTO PUBLIC ROADS. )r^
<br /> 2. IF THE STABIUZED CONSTRUCTION ENTRANCE IS NOT EFFECTIVE IN PREVENTING ELEMENT IN, CONTROL PO LUTANTS Co V
<br /> SEDIMENT FROM BEING TRACKED ONTO PUBUC ROADS,WHEEL WASH OR TIRE BATHS 1.ALL POLLUTANTS,INCLUDING WASTE MATERIALS AND DEMOLITION DEBRIS, THAT 6"
<br /> SHALL BE LOCATED ON SITE. OCCUR ONSITE SHALL BE HANDLED AND DISPOSED OF IN A MANNER THAT DOES NOT ELEMENT 113: PROTECT LOW IMPACT DEVELOPMENT BMPs
<br /> 3. IF SEDIMENT IS TRACKED OFF SITE,PUBUC OR PRIVATE ROADS SHALL BE CLEANED CAUSE CONTAMINATOR OF STORMWATER. 1.AREAS ON-SITE WHICH UTIUZE STORMWATEER MANAGEMENT BMPs SHALL BE S'�...y�
<br /> THOROUGHLY AT THE END OF EACH DAY,OR MORE FREQUENTLY DURING WET WEATHER. 2. COVER,CONTAINMENT,AND PROTECTOR FROM VANDALISM SHALL BE PROVIDED FOR PROTECTED FROM SILTATION AND COMPACTION DURING THE CONSTRUCTION PROCESS. ��.�'j>;=•?-0 :42,r'7m
<br /> SEDIMENT SHALL BE REMOVED FROM ROADS BY SHOVELING OR PICKUP SWEEPING AND ALL CHEMICALS,LIQUID PRODUCTS,PETROLEUM PRODUCTS,AND OTHER MATERIALS THAT a)DO NOT ALLOW MUDDY CONSTRUCTION EQUIPMENT ON BASE MATERIAL OR PAVEMENT. J• Aj--= � ''� 24-
<br /> SHALL BE TRANSPORTED TO A CONTROLLED SEDIMENT DISPOSAL AREA. HAVE THE POTENTIAL TO POSE A THREAT TO HUMAN HEALTH OR THE ENVIRONMENT. DO NOT ALLOW SEDIMENT-LADEN RUNOFF ONTO PERMEABLE PAVEMENTS OR BASE •'l'A7a ie---:‘
<br /> -` i
<br /> 4.STREET WASHING IS ALLOWED ONLY AFTER SEDIMENT IS REMOVED AS DESCRIBED ON-SITE FUEUNG TANKS SHALL INCLUDE SECONDARY CONTAINMENT. MATERIALS. ���-
<br /> ABOVE.STREET WASH WASTEWATER SHALL BE CONTROLLED BY PUMPING BACK ON SITE 3. MAINTENANCE,FUEUNG,AND REPAIR OF HEAVY EQUIPMENT AND VEHICLES SHALL BE b)PAVEMENT FOULED WITH SEDIMENTS OR NO LONGER PASSING AN INITIAL INFILTRATION �,,w
<br /> OR OTHERWISE BE PREVENTED FROM DISCHARGING INTO SYSTEMS TRIBUTARY TO WATERS CONDUCTED USING SPILL PREVENTION AND CONTROL MEASURES. CONTAMINATED TEST MUST BE CLEANED USING PROCEDURES IN ACCORDANCE WITH THE CURRENT DOE
<br /> OF THE STATE. SURFACES SHALL BE CLEANED IMMEDIATELY FOLLOWING ANY SPILL INCIDENT. MANUAL OR MANUFACTURERS PROCEDURES. 2'-4-ROCK
<br /> 4. WHEEL WASH OR TIRE BATH WASTEWATER SHALL BE DISCHARGED TO A SEPARATE c)KEEP ALL HEAVY EQUIPMENT OFF EXISTING SOILS UNDER UD FACILITIES THAT HAVE \�
<br /> SUGGESTED BMPs/BMPs TO BE USED: ON-SITE TREATMENT SYSTEM OR TO THE SANITARY SEWER WITH LOCAL SEWER DISTRICT BEEN EXCAVATED TO FINAL GRADE TO RETAIN THE INFILTRATION RATE OF THE SOILS. ••• ��
<br /> CONTRACTOR SHALL UTIUZE GRAVEL POND ACCESS ROAD FOR CONSTRUCTION ACCESS APPROVAL. Thi*� ��-Z7 - `� 0'
<br /> FLOW C 24' •aT
<br /> AND KEEP PAVED PARKING LOT CLEAN BY FOLLOWING D.O.E.BMP140 DUST CONTROL 5. APPUCATON OF FERTILIZERS AND PESTICIDES,SHALL BE CONDUCTED IN A MANNER SUGGESTED BMPs/BMPs TO BE USED: \'-
<br /> AND AT APPUCATION RATES THAT WILL NOT RESULT IN LOSS OF CHEMICAL TO BMP C103: HIGH VISIBIUTY FENCE A&t t•i:t�`4.* V•• ( , ..W
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<br /> ELEMENT 63: CONTROL FLOW RATES STORMWATER RUNOFF. MANUFACTURERS'LABEL REQUIREMENTS FOR APPUCATION RATES BMP C233: SILT FENCE -•Appy -1. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE AND PROCEDURES SHALL BE FOLLOWED.PROTECTED FROM EROSION DUE TO INCREASES IN THE VELOCITY AND PEAK VOLUMETRIC 6. BMPs SHALL BE USED TO PREVENT OR TREAT CONTAMINATION F STORMWATER ROCK CHECK DAM SECTIONS 2FLOW RATE OF STORMWATER RUNOFF FROM THE PROJECT SITE. RUNOFF BY pH MODIFYING SOURCES. THESE SOURCES INCLUDE.BUT ARE NOT LIMITED TO: , '
<br /> BULK CEMENT,CEMENT KILN DUST,FLY ASH,NEW CONCRETE WASHING AND CURING
<br /> SUGGESTED BMPs/BMPs TO BE USED: WATERS,WASTE STREAMS GENERATED FROM CONCRETE GRINDING AND SAWING,EXPOSED NOTES 2 L=THE DISTANCE SUCH THAT POINTS '4111411111i.-
<br /> NOT APPUCABLE AGGREGATE PROCESSES,AND CONCRETE PUMPING AND MIXER WASHOUT WATERS. 1.Size the Below Inlet Grate Device(BIGD)for the storm water structure it will 1 "�-';. A&B ARE OF EQUAL ELEVAION
<br /> PERMITTEES SHALL ADJUST THE pH OF STORMWATER IF NECESSARY TO PREVENT
<br /> a.„ . s I:.,. VIOLATIONS OF WATER QUALITY STANDARDS. service. .1.-N.
<br /> 1 ="5;".i.7"-7, -_;,..1
<br /> 1.THE DUFF LAYER,NATIVE SOIL,AND NATURAL VEGETATION SHALL BE RETAINED IN AN 7. PERMITTEES SHALL OBTAIN WRITTEN APPROVAL FROM ECOLOGY PRIOR TO USING 2.The BIGD shall have a built-in high-flow relief system(overflow bypass). � A B
<br /> V b' L
<br /> UNDISTURBED STATE TO THE MAXIMUM EXTENT PRACTICABLE. CHEMICAL TREATMENT,OTHER THAN CARBON DIOXIDE OR DRY ICE TO ADJUST pH. 3.The retrieval system must allow removal of the BIGD without spilling the 2 -I-- _ :_�
<br /> I 2. SEDIMENT CONTROL BMPs SHALL BE CONSTRUCTED AS ONE OF THE FIRST STEPS IN collected material. -IIGRADING. THESE BMPs SHALL BE FUNCTIONAL BEFORE OTHER LAND DISTURBING SUGGESTED BMPs/BMPs TO BE USED: 4.Perform maintenance in accordance with Standard Specification&-01.3(15). �•� :!�. o
<br /> ACTIVITIES TAKE PLACE. BMP C150: MATERIAL ON HAND V q y) N\'8.: Z N
<br /> oI 3. PRIOR TO LEAVING THE CONSTRUCTION SITE,STORMWATER RUNOFF FROM DISTURBED
<br /> AREAS SHALL PASS THROUGH AN APPROPRIATE SEDIMENT REMOVAL BMP. RUNOFF FROM 5'MAX 1'SUMP N N c
<br /> FULL STABIUZED AREAS MAY BE DISCHARGED WITHOUT A SEDIMENT REMOVAL BMP,BUT ELEMENT 110: CONTROL DEWATERING �{
<br /> L MUST MEET THE FLOW CONTROL PERFORMANCE STANDARD OF ELEMENT/3. DEWATERING TO TAKE PLACE PRIOR TO PLACEMENT OF GEOTEXTILE MATERIAL ALL DRAINAGE GRATE I TRIM Z W m Q'
<br /> DEWATERING WILL BE CONDUCTED IN ACCORDANCE WITH D.O.E STANDARDS.ALL I SPACING BETWEEN CHECK DAMS <I- .1 .v,
<br /> 9 SUGGESTED BMPs/BMPs TO BE USED: STORMWATER THAT LEAVES THE PROJECT SITE WILL COMPLY WITH DISCHARGE \4 >Q 0 o n
<br /> w / REQUIREMENTS. GRATE FRAME 1a
<br /> BMP C233: TEMPORARY SILT FENCE ,4 A W- ."'
<br /> AELEMENT 15: STABIUZE SOILS FI FMFNT Ill: MAINTAIN BMPsli DETAIL- ROC K C H EC K DAM ° 2 3 v
<br /> uT 1. EXPOSED AND UNWORKED SOILS SHALL BE STABIUZED BY APPLICATION OF EFFECTIVE 1. INSPECT EROSION CONTROL DEVICES ON A WEEKLY BASIS AND AFTER EACH RUNOFF SEDIMENT AND DEBRIS4, REF: C.O.E.SID DETAIL 206 (o 'W>r c
<br /> W BMPs THAT PROTECT THE SOIL FROM EROSIVE FORCES OF RAINDROPS.FLOWING WATER, EVENT. MAKE NECESSARY REPAIRS AND MAINTENANCE TO ENSURE CONTINUED NO SCALE >°r
<br /> 0, AND WIND. PERFORMANCE OF EROSION AND SEDIMENT CONTROLS. IIIOVERFLOW BYPASS Q N O a
<br /> 2. TO PREVENT EROSION,NO SOILS SHALL REMAIN EXPOSED AND UNWORKED FOR MORE 0 C)Q 3 W
<br /> Li THAN THE TIME PERIODS SET FORTH BELOW: 2. WHEN SEDIMENT ACCUMULATION IN SEDIMENTATION STRUCTURES,OTHER THAN INLET O
<br /> DURING THE WET SEASON(OCTOBER 1 -APRIL 30): 2 DAYS PROTECTION DEVICES,HAS REACHED A POINT ONE-THIRD DEPTH OF SEDIMENT STRUCTUREv G Ilt2
<br /> m DURING THE DRY SEASON(MAY 1-SEPT.30): 7 DAYS OR DEVICE,OR IF FLOW THROUGH THE DEVICE IS REDUCED BY MORE THAN ONE-THIRD „ rili 1Q
<br /> THIS STABILIZATION REQUIREMENT APPLIES TO ALL SOILS ON SITE,WHETHER AT FINAL CAPACITY,THE CONTRACTOR SHALL REMOVE AND REPLACE DISPOSABLE DEVICES OR ' BELOW INLET GRATE DEVICE vne r.as1�\
<br /> 4 Q a
<br /> M GRADE OR NOT. THESE TIMES MAY BE ADJUSTED BY THE LOCAL PERMITTING AUTHORITY CLEAN AND DISPOSE OF SEDIMENT. • WWI WAND
<br /> IF IT CAN BE SHOWN THAT SITE CONDITIONS OR THE AVERAGE TIME BETWEEN STORM a0soe
<br /> u mnsuEVENTS JUSTIFIES A DIFFERENT STANDARD. 3. TEMPORARY EROSION AND SEDIMENT CONTROL BMPs SHALL BE REMOVED WITHIN 30 ' FILTERED a
<br /> 3. SOILS SHALL BE STABILIZED AT THE END OF THE SHIFT BEFORE A HOLIDAY OR DAYS AFTER FINAL SITE STABILIZATION IS ACHIEVED OR AFTER THE TEMPORARY BMPs ARE 11111 WATER RT.FAH.
<br /> RIE WEEKEND IF NEEDED BASED ON THE WEATHER FORECAST. NO LONGER NEEDED. TRAPPED SEDIMENT SHALL BE REMOVED OR STABILIZED ON SITE. "" -,,,,..N. REVISIONS: APPD.
<br /> 4. SOIL STOCKPILES SHALL BE STABILIZED FROM EROSION,PROTECTED WITH SEDIMENT DISTURBED SOILS SHALL BE PERMANENTLY STABILIZED.
<br /> TRAPPING MEASURES,AND WHERE POSSIBLE,BE LOCATED AWAY FROM STORM DRAIN
<br /> > INLETS,WATERWAYS,AND DRAINAGE CHANNELS.
<br /> FI 5. APPLICABLE BMPs INCLUDE,BUT ARE NOT UNITED TO: TEMPORARY AND PERMANENT Fl FMFNT 112: MANAGE THE PROJECT
<br /> - SEEDING,SODDING,MULCHING,PLASTIC COVERING,EROSION CONTROL FABRICS AND 1.PHASING OF CONSTRUCTION: • • I ,
<br /> LLE MATTING,SOIL APPUCATION OF POLYACRYLAMIDE(PAM),THE EARLY APPUCATION OF a)DEVELOPMENT PROJECTS SHALL BE PHASED WHERE FEASIBLE IN ORDER TO PREVENT, •A •C _..
<br /> = GRAVEL BASE ON AREAS TO BE PAVED AND DUST CONTROL SELECT SOIL STABILIZATION TO THE MAXIMUM EXTENT PRACTICABLE,THE TRANSPORT OF SEDIMENT FROM THE «u ARO t I
<br /> MEASURES SHALL BE APPROPRIATE FOR THE TIME OF YEAR,SITE CONDITIONS,ESTIMATED DEVELOPMENT SITE DURING CONSTRUCTION.REVEGETATION OF EXPOSED AREAS AND ONNAARFO 1
<br /> DURATION OF USE,AND THE POTENTIAL WATER QUAUTY IMPACTS. MAINTENANCE OF THAT VEGETATION SHALL BE AN INTEGRAL PART OF THE CLEARING I i
<br /> i OF 8. REMOVE ALL TESC MEASURES AS SOON AS PRACTICAL AFTER ESTABUSHMENTACTIVITIES FOR ANY PHASE. •• Yr •• A II H
<br /> el UNIFORM GRASS GROWTH OR INSTALLATION OF OTHER PERMANENT STABILIZATION b)CLEARING AND GRADING ACTIVITIES FOR DEVELOPMENTS SHALL BE PERMITTED ONLY IF • •
<br /> MEASURES. REPAIR ANY DAMAGE TO STABIUZED SURFACES AFTER REMOVAL OF TESL CONDUCTED PURSUANT TO AN APPROVED SITE DEVELOPMENT PLAN(e.g.,SUBDIVISION D D D e.1
<br /> MEASURES. APPROVAL)THAT ESTABLISHES APPROVED AREAS OF CLEARING,GRADING,CUTTING AND
<br /> FIWNG.WHEN ESTABLISHING THESE PERMITTED CLEARING AND GRADING AREAS, U
<br /> SUGGESTED BMPs/BMPs TO BE USED: CONSIDERATION SHOULD BE GIVEN TO MINIMIZING REMOVAL OF EXISTING TREES AND SECTION AA
<br /> BMP C120: TEMPORARY AND PERMANENT SEEDING MINIMIZING DISTURBANCE AND COMPACTION OF NATIVE SOILS EXCEPT AS NEEDED FOR SECTION VIEW DATE: APRIL,2017
<br /> BMP C140: DUST CONTROL BUILDING PURPOSES.THESE PERMITTED CLEARING AND GRADING AREAS AND ANY rarsernawc MATERIAL
<br /> OTHER AREAS REQUIRED TO PRESERVE CRITICAL OR SENSITIVE AREAS,BUFFERS,NATIVE WAFl r00x OR DESIGN: ,RWM
<br /> ELEMENT/6: PROTECT SLOPES GROWTH PROTECTION EASEMENTS,OR TREE RETENTION AREAS AS MAY BE REWIRED RETRIEVAL SYSTEM ,vueonnr _ A
<br /> 1. DESIGN,CONSTRUCT,AND PHASE CUT AND FILL SLOPES IN A MANNER THAT WILLDRAINAGE GRATE p '�
<br /> ME was WM:A..r� DRAWN: CU(
<br /> BY LOCAL JURISDICTIONS,SHALL BE DELINEATED ON THE SITE PLANS AND THE LTY ) mncAu
<br /> MIMMIZE EROSION. APPLICABLE PRACTICES INCLUDE,BUT ARE NOT UNITED TO,REDUCING DEVELOPMENT SITE. -RECTANGULAR GRATE SHOWN ascarw CHECKED: JNS
<br /> CONTINUOUS LENGTH OF SLOPE WITH TERRACING AND DIVERSIONS,REDUCING SLOPE __=_(- 1 I ' it p REVISION
<br /> STEEPNESS,AND ROUGHENING SLOPE SURFACES (e.g.,TRACK WALKING). 2.SEASONAL WORK LIMITATIONS: (� _ 111111111.11 NUMBER:
<br /> m 2. OFF-SITE STORMWATER RUN-ON OR GROUNDWATER SHALL BE DIVERTED AWAY FROM FROM OCTOBER 1 THROUGH APRIL 30,CLEARING,GRADING,AND OTHER SOIL DISTURBING t A r��-�'•
<br /> SLOPES AND DISTURBED AREAS WITH INTERCEPTOR DIKES,PIPES. AND/OR SWALES. ACTIVITIES SHALL ONLY BE PERMITTED IF SHOWN TO THE SATISFACTION OF THE LOCAL \'--all SCALE:
<br /> a OFF-SITE STORMWATER SHOULD BE MANAGED SEPARATELY FROM STORMWATER PERMITTING AUTHORITY THAT THE TRANSPORT OF SEDIMENT FROM THE CONSTRUCTION SITE
<br /> i¢ GENERATED ON THE SITE. TO RECEIVING WATERS WILL BE PREVENTED THROUGH A COMBINATION OF THE FOLLOWING:
<br /> - _
<br /> 8 3. DO NOT CLEAR AND GRUB SLOPES GREATER THAN 4(HORIZONTAL):1(VERTICAL) a)SITE CONDITIONS INCLUDING EXISTING VEGETATIVE COVERAGE.SLOPE,SOIL TYPE,AND `� -��_ �I■■■.II PROJECT NUMBER:
<br /> UNLESS FURTHER WORK RESULTING IN STABILIZATION OF THE SLOPES TO BE CLEARED AND PROXIMITY TO RECEIVING WATERS; AND • .�
<br /> te GRUBBED IS SCHEDULED. b)LIMITATIONS ON ACTIVITIES AND THE EXTEND OF DISTURBED AREAS; AND `"� II �1■==:i� CEMX00000005
<br /> 4. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES, c)PROPOSED EROSION AND SEDIMENT CONTROL MEASURES. `OVERFLOW BYPASS I
<br /> �•5• CONSISTENT WITH SAFETY AND SPACE CONSIDERATIONS.
<br /> 5. CHECK DAMS SHALL BE PLACED AT REGULAR INTERVALS WITHIN CONSTRUCTED BASED ON THE INFORMATION PROVIDED AND LOCAL WEATHER CONDITIONS,THE PROJECT BELOW INLET GRATE DEVICE (TYP) .t-i®_'_W��TTIT�I! DRAWING FILE:
<br /> CHANNELS THAT ARE CUT DOWN A SLOPE. LEAD MAY EXPAND OR RESTRICT THE SEASONAL LIMITATION ON SITE DISTURBANCE.THE EC-004-EC-CEMXD005_Div9.dwg
<br /> PROJECT LEAD SHALL TAKE ENFORCEMENT ACTION-SUCH AS NOTICE OF VIOLATION, iw I I I I I I I I
<br /> H. SUGGESTED BMPs/BMPs TO BE USED: ADMINISTRATIVE ORDER,PENALTY,OR STOP-WORK ORDER UNDER THE FOLLOWING ,
<br /> g( BMP C120: TEMPORARY AND PERMANENT SEEDING CIRCUMSTANCES: 11\ I I A I I I I SHEET NO.
<br /> if 6 -IF,DURING THE COURSE OF ANY CONSTRUCTION ACTIVITY OR SOIL DISTURBANCE ISOMETRIC VIEW I' • STEEL POSTE
<br /> DURING THE SEASONAL LIMITATION PERIOD,SEDIMENT LEAVES THE CONSTRUCTION SITE U cos. UU US P4
<br /> too NO SCALE
<br /> CAUSING A VIOLATION OF THE SURFACE WATER QUAUTY STANDARD; OR
<br /> P -IF CLEARING AND GRADING UNITS OR EROSION AND SEDIMENT CONTROLS MEASURES DETAIL-STORM DRAIN INLET PROTECTION ELEVATION
<br /> �
<br /> SHOWN IN THE APPROVED PLAN ARE NOT MAINTAINED. REF: WSDOT STD PLAN 1-40.20-00 ,.CITY OF EVERETT TEMPORARY SILT FENCE 5/11/2011
<br /> • PUBLIC WORKS Dote, OF 9
<br /> o- ille.r' DEPARTMENT 2'I 4
<br /> St�i "OE St)0.:
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