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A PC�RTION OF THE SE 1 /4 C�F SECTiC�N 11 , T 28 N , R 4 E, VI/M .
<br /> STQRMW/�TER P4LLUT10►N PREVENTIt�N PLAN SWPPP : �� � :.�� ��
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<br /> THE CONIRAC70R IS RESPONSIBLE FOR PROYIDING THE EROSION CONTR4L MEASURES ��EMENT �7: PROTEC7 DRAIN INLETS ��IENT #12: MANAGE THE PRO��C�j (C4NTINUEQ) FACI�fTIES DEPARTMENT
<br /> SHOWN QR DESCRIBED IN THE CONTRACT DOCUMENTS AND ANY ADDITIONAL MEASURES 1. ALL STORF� DRAIN INLETS OPERABLE DURING CCNVSTRUCIIQN AND ALL INLETS WITHIN THE FOLLOWING ACTIVITIES ARE EKEMPT fROM THE SEASONAL CLEARING AND GRADING 2320 CAUFORNlA S7REET
<br /> THAT MAY BE REQUIRED SY THE C�ITRACTORS MEANS AND METHODS OF COI�iSTRUCTION 200' DOWNSTREAM OF THE PR4JEGT SITE SHALL BE PROTECTED WIl}i CATCH BAStN LIMIiAl10NS: EVERETT,WA 98201
<br /> AS NEEDED TO CONTROL ERUSION AND SEDIMENT A7 THE CflNS7RUCT14N SITE AND TO FI�TERS SO THAT STORMWAIER RUNOFF DOES NOT ENTER THE CONVEYANCE SYSTEM a} ROUIINE MAINTENANGE AND NECESSARY REPAIR OF EROSION AND SEDIMENT CONTROL pF�c�az5�5��s��
<br /> PREVENT VIOLA�iQN OF SURFACE WATER QUALITY, C�tOU�iD WATER QUAI.fTY, OR SEDIMENT WITN4UT FlRST BEING FlI.TERED OR TREATED TQ REMOVE SEDIMENT. CATCN BASIN FILTERS BMPs;
<br /> MANAGEMENT STANDARDS. EROSION G4NTROL MEASURES SHALL BE MAINTAINED IN THE ROADWAY 1MLL BE OIL/SEQIMENT FILTERS AND CATCH BASlN FILTERS OUTSIDE b) ROUTINE MAINTENANCE OF PUBtJC FACIUIIES OR EXISTING UTILITY STRUCTURES THAT
<br /> THRtJUGHQUT THE COURSE 4F CONSTRtJCTION AND UNTiL ALL DISTURBED EARTH lS 4F THE ROADWAY WILI BE SEQIMENT FlLTERS. DO NOT EXPOSE THE SOIL OR RESULT IN Tl-!E REMOVAL OF THE VEGETATiVE COVER T4
<br /> STABIUZED IN FiNISH GRApES. 2. APPROAGH ROADS SHALt BE KEPT CLEAN. SEDIMENT AND STREET WASH WATER SOIL; AND � DAVI
<br /> SHALL NOT BE Al10WED TD ENTER STORM DRAINS WITHOUT PRI� AND ADEQUATE c) ACTIVIIIES WHERE THERE IS ONE HUNDRED PERCENT INFlLTRAl10N OF SURFACE WATER �w°F w�������J
<br /> THE FOLLOWING DESCRIBES HOW THE CONSTRUCTION SWP'PP ADDRESSES EACH OF THE 12 TREATMENT. RUNOFF WITHIN THE SITE IN APPROVED AND INSTALLED EROSION AND SEDIMENT
<br /> REQUIRED ELEMENTS. REFER TO THESE PLANS FOR DRAWINGS OF THE PR4JECT, ViCINITY 3. (NLET PR07EC110N DEIACES SHOUl.O BE CLEANED OR REMOVED AND REPLACED WNEN GQNTR4L FACIUIIES.
<br /> MAP, SITE MAP, EROSIflN AND SEDIMENT CONTROL MEASURES, AND EROSION AND SEpIMENT HAS FIl.LED ONE-THIRD QF THE AVAILABIE STQRAGE (OR WHEN FlLLED WITH � �"' �
<br /> SEDlMENT CONTROL QETAILS. ..o
<br /> SIX-INCHES OF SEDIMENT). 3. COORDINATE WITW U1IUTIES AND QTHER Ct?NTRACTORS �A aesza �`�
<br /> THE PRIMARY PROJEC7 PRUPONENT SHALL EVALUATE WITH INPUT FROM UTIUTIES AND °�' ���rsr�R�� �'
<br /> ELEMENT #1: PRESERVE VEGETAT10N�t++�ARK CLEARING LIMITS ' �'s �A� �,U�"
<br /> 1. PRlaR TO BEGINN►NG LRND DISTURBING ACIIVITIES iNCLUDING C�EARING AND GRADING BMPs TO BE USED: OTHER GONTRACTORS, THE STORMWATER MANAGEMENT REQUIREMENTS FOR THE ENTIRE �'I
<br /> � ) t� ��A��-- PROJECT, INCLUDfNG THE UTilJ11ES, WHEN PREPARiNG THE CQNSTRUCTI4N SWPPP. ,�°� ��
<br /> CLEARLY tuIARK ALL CLEARING LIMITS AND TFiEES THAT ARE TQ BE PRESERVED WITHIN 1HE �-�N,,p �Z-�.��, ��,2.r� t�r�,� ��J�-�r� �K-c�'�-�-T�D�
<br /> CON�TRUCTION AREA AS SHOWN ON THE DRAWIMGS. 4. INSPECTIQN AND MONlTORING:
<br /> 2. SILT FENCE, GEOTEXTILE ENCASEQ BARRiERS, GONSTRUCTIOhI FENCE, ORANGE PLASTIC ELEMENT #8: STABlLIZE CHANNEL� AND Ou�TS
<br /> FENCE, OR OTHER APPRQVED MEASURES MAY BE USED TO MARK THE CLEARING LIMITS AT 1, AL.L TEMPORARY ON-SITE CONVEYANCE CHAIdNELS SHALL BE DESiGNEO, COMSTRU�TED SITE INSPECTI4N SHALL BE CONDUCTEO BY A PERSON WHO IS KNOYYLEDGEABLE IN THE
<br /> THE CONTRACTOR'S OP110N. ANQ STABILIZED TO PREVENT ERQSION FRC�uI THE EXPECTED PEAK 10 MlNUTE VEL�CIN t}F PRiNCIPLES ANd PRACTICES OF EROSION AND SEDlMENT CONTROL AT LEAST ONCE
<br /> 3. THE DUFF LAYER, NATIVE TOPSOIL, AND NATURAL YEGETATION SHALL BE RETAINED !N FLOW FROM A 7YPE 1A, 10-YR, 24-HR FREQUENCY �TORM fOR 1HE DEVELOPED EYERY CALENDAR WEEK AND WITHIN 24 HOURS OF ANY RAlNFALL EVENT. THIS PERSON
<br /> AN UNDISTURBED STATE TO THE MAXIMUi� DEGREE PRACTICABI.E. CCINDITIOM. ALIERNAT11tELY, THE 10-YR, 1-HR FLOW RATE INDICATED BY AN APPROVED HAS THE SKILLS T0:
<br /> CONTlNUQUS RUM4FF MdDEL, INCREASED BY A FACTQR OF 1.6, MAY BE USEQ. a) ASSESS 1HE SITE CONDITIQNS AND CONSTRUCTION ACT1VITIES THAT C(klLD IMPACT THE
<br /> SUGGESTED BMPs/Bt�Ps 74 8E USED: 2. STABIUZATION, INCLUDING ARMORING MATERIAL, ADEQUATE T4 PREVENT EROSiON 4F QUALJTY Of STQRMWATER, AND
<br /> COE ST� DETAiL #214: TEMPORARY SILT FENCE QUTLETS, ADJACENT STREAM BANKS, SLOPES, AND DflWNSTREAM REACHES SHALL BE b) AS5ESS THE EFFECTIVENESS QF EROSION AND SEDiMENT C�VTROL MEASIlRES USED TO
<br /> 03�^P �i��j �Rr�-s�.riv��� ��v,R-�- �J���r�Pr��v+^-� PROVIQED AT THE OUTLETS OF ALL CONVEYANCE SYSTEMS.
<br /> FI FIuiFN7 #2: ESTABUSF�,�(}NSTR1�C�f,�N ACCESS CONIROL TNE QUALITY OF ST(7RA�WATER DISCNARGES.
<br /> 1. CONSTRUCTION VEHICLE ACCESS AND EXIT SHALL BE IJMiTED TO ONE ROUTE. REFER SUGGESTED B�iPs/SMPs TO BE USED: IF INSPECTIQN AND/C)R WATER MONITORiNG OF SITE RUNOF� REVEALS THAT THE BMPs
<br /> TO SWPP PLAN OF THESE PLANS FOR THE CONSTRUC11f�N ENTRANCE LOCATION. ALL NOT APPLICABLE IDENTIFtED !N THE CONSTRUCTtt?N 5WPPP ARE INADEQUATE, TNE CONTRACTOR SHALL
<br /> ACCESS/EXIT PDINTS SHALl BE STABI�{ZEQ WITN QUARRY SPALLS, CRUSHED ROCK 4R IMMEOIATELY AOD BMPs TO THE SWPPP AS NECESSARY.
<br /> OTHER EQUIVALENT BMP, TO MINIMlZE THE TRACKING OF SEDIMENT ONTO PUBUC ROADS.
<br /> 2. IF THE STABItJZED C�NSIRUCTION ENIRANCE IS NOT EFFECTIVE IN PREVENTING ELEM.EI�T �3: CONTRt�, PQLLUTANTS ���"'� e-��� ' �""4'��-a'�`'-� �"�-� ���
<br /> SEDIMENT FROM BEfNG TRACKED ONTO PUBLIC ROADS, WMEEL WASH OR T1RE BATH5 1. ALl POLLUTANTS, INCLUDING WASTE MATERIALS AND DEMOLITlON DEBRIS> THAT
<br /> SHALL BE LOCAlED �N SITE. OCCUR ONSITE SHALL BE HANDIED AND DISPOSED OF IN A MANNER THAT DOES NOT _
<br /> 3. IF SEDiMENT IS TRACKED O�F SITE, PUBUC OR PRIVATE �OADS SHALL BE CLEANED CAUSE CONTAMINATION OF STORMWATER. f�'`t-f�-w�r�-'�� � 9�' t��-o��-� �.��-' i�P� U►��--�..c��w�r�i-
<br /> THOROUGHLY AT THE END OF EACH DAY, OR MORE FREQUENTLY DURING WET WEATHER. 2. COVER, CONTAINMENT, AND PRQTECTION FRQM VANDALISM S�iALL BE PROVIDED F4F2 � � �23� , �t�-'� F�e-yz--
<br /> SEDIMENT SHALL BE REMOVED FRQM ROADS BY SHOVELING OR PICKUP SWEEPING ANQ ALL CHEMlCALS, LIQUID PRODUCTS, PETR4LEUM PRODUCTS, AND OTHER MATERIALS TNAT �
<br /> SHAI.L BE 1RANSPQRTED TO A CONTRt}LLED SEDIMENT DISPQSAL AREA. HAVE THE POTENTIAL TO POSE A THREAT TO HUMAN HEALTH OR THE ENVfRONMENT.
<br /> 4. STREET WASHING IS ALLOWED ONLY AFTER SEDtMENT !S REM01lED AS DESCRIBED ON-SITE FUELING TANKS SHALL INCLUDE SECONDARY C4NTAINMENT.
<br /> ABQYE. S7REET WASH WASTEWATER SHALL BE CONTROLLEQ BY PUMPING BACK OM SITE 3. MAINTENANCE, Fl1EUNG, AND REPAIR OF HEAVY EQUIPMENT ANp VEHICLES SHALL BE
<br /> 4R OTHERWISE BE PREVENTED FROM OISCHARGING INTQ S`fSTE�lS TRI@UTARY TO WATERS CONDUCTEO USING SPIIL PREVENTION AND CONTROL MEASURES. CONTAMIMATED
<br /> OF THE STATE. SURFACES SHALL BE CLEANED IMMEDIATELY FOLIOWIN� ANY SPILL INCIQENT. ,p�t..to !2�i-�"`�'�� �� f,�(��-=' ��� S , '��-
<br /> 4. WHEEL WASH OR T1RE BATH WASTEWATER SHALL BE DISCHARGED TQ A SEPARATE ����� �
<br /> SUGGESTED BMPs/BMPs TO BE USED: ON-SiTE TREATMENT SYSTEM OFt TO THE SANlTARY SEWER WITH LOCAL SEWER DISTRICT �
<br /> DISTRiCT WILL UTiLIZE GRAVEL POND ACCESS ROA� �OR CONSTRUCTION ACCESS AND KEEP APPROVAL.
<br /> PAVEa PARKING LOT CLEAN BY FOLLOIMNG D.4.E. BMP14Q DUST ��N1ROL. 5. APPUCATiON OF FERIIUZERS AND PESTICIDES, SHALL BE CONDUCTED IN A MANNER
<br /> �w��p �-P��: r�o�s;�w`-�� �✓'�,�P:����c� t�-��� ��c3o�-�z��c�� AND AT APPLICATION RAIES THAT Wlll NOT RESULT IN LOSS OF CNEMICAL T(} , E I
<br /> EIEMENT ;�.3: COMTRQL FLOW RATES STOFiMWATER RUNOFF. MANUFACTURERS' i.ABEL REQUIREMENTS FOR APPLlCAl10N RATES
<br /> 1. PROPERIIES AND WATERWAYS DOWNSTREAM FROM DEIIELOPMENT SITES SHAIl BE AMd PROCEDURES SHALL BE FOU.OWED. ; NOTES
<br /> PRQTECTED FROM EROSION DUE TO INCREASES IN TNE 11ELOCITY AND PEAK V�IUMETRIC fi. BMPs SHALL BE USED TO PREVENT OR TREAT C4NTAMINATION 4F STORMWATER ATTACH IN A MANNER THAT -PO5T SE� WSDOT STANi�ARD
<br /> FLOW RATE OF STORMWATER RUNOFF FRQM THE PROJECT SITE. RUNOFF BY pH MODIFYING SOURCES. THESE SOURCES INCLUDE, BUT ARE NOT LiMIfiED T0: ASSURFS FA�3RIC IS FIRMI.Y 5�'ECIFl�ATIOfVS 8-01.3(9)A 1. INSTAtI TWE END5 C7F THE S►LT FE�lCE TO POIN1`
<br /> 6ULK CEMENT, CEMENT K1LN DUST, FLY ASH, NEW CONCRETE WASHING AND GURING NEID BY THE BACKUP SLIGHTI.Y UPSIOPE TO PREVENT SEDIM�NT FRQM
<br /> SUGGESTED BMPs/BMP$ TO BE USED: WA7ERS, WASTE STREA�IS GENERATED FROM CONCRETE GRINDING AND SAWING, EXPOSED SUPPQRT iN A WAY TNAT FLQWING ARDUN�THE ENDS t7F TH� fENCE.
<br /> NOT APPLICABIE AGGREGATE PROCESSES, AND CONCRETE PUAdPING AND MIXER WASHOUT WATERS. REpUCfS THE POTENTiAt
<br /> PERMiTTEE5 SHALL ADJUST Tt-fE pH OF STflRMWATER IF NECESSARY TO PREVENT �pR FABRIC TEARING --- 2. PERFORM MAI(VTENANCE IN ACCORDANCE WITH
<br /> ELEMENT � INSTALL SEDlMENT CONTRQL;� VIOL4110NS OF WATER QUAUTY STANDARDS. ------FASTEN GEOT�XTI�E TO t/1aSpQT STANDARD SPECIFICATIONS $-01.3{9jA
<br /> 1. THE DUFF LAYER, NATIYE SOII., AND NATURAL VEGETATION SHALL BE RETAINED IN AN 7. PERMITTEES SHALL OBTAIN WRITTEN APPROVAL FROM EC4LOGY PRIOR TO USING �" 1�-`"�J � POST EVERY 6" IN 4,C. AND 8-01.3t15).
<br /> UNDtS1URBED STATE TO THE MAXIMUM EXTENT PRACTICABLE. CHEMICAL 1REATMENT, OTNER THAN CARBC}N DIOXIDE OR DRY ICE TO ADJUST pH. '„x� -
<br /> 2. SEDIMENT CONTROL BMPs SHALL BE CONSTRUCTEQ A5 ONE OF TNE FlR�T STEPS IN ; sACKUPSUPPORT -- rx;�' ti,� I
<br /> GRADING. THESE BMPs SHALL BE FUNC1i0PfAL BEFORE OTNER LAND DISTURBING SUGGESTED BMPs/BMPs TQ 8E USED: ' �, ti�` i 3. 5PGICES SHALI NEVER BE PLACED !N LUW SPOTS
<br /> ACT1V1T1ES TAKE PLAGE. BMP C150: �tATERIAL ON HAND ' y<`� - OR SUMP LOCATIaNS. M� SPLIGES A�E LOCATED IN
<br /> 3. PRIOR TO LEAVING THE CONSIRUCTION SITE STORMWATER RUNOFF FRQM DISTURBED `;�s`�`'' "� `a � La1N Ofi SUMP AREAS, THE FEN�E MAY NEEa TO
<br /> AREAS SHAI.l. PASS THROUGN AN APPROPRIATE SEDIMENT REM4VAL BMP. RUIdOFF FROM ��� ���5� + `� ������� ���J���O° ����r� � ����mr�� ' BACKFILLEp& ��;��;�; s . ^',� SEtF-LOCKING TIE-NYIONE BE REIN5TA�.LED UNLE55�THERWISE APPROVEO.
<br /> FULL STABIUZED AREAS MAY BE DISCHARGED 1A+ITHOUT A SE[�IMENT REMOVAL BMP, BUT ELEMENT �10: CONTRQL DEWATERING I CCIMPACTEQ ;<``< _ ` � " 6/C (MiN GRADEJ
<br /> MUST MEET TNE FLflW CQNTROL PERFORMANCE STANDARD OF ELEMENT 3. NO DEWATERING IS PROPQSED QR AMTtCIPATEQ F(�2 THIS PR�JEGT, BUT IF DEWATERING � NATIVE S�tL --- �EpTFXTII F : ""�� i -' 4. INSTAII SII.T�ENCING PARALLEL TO MAPPED �
<br /> � OF TRENCHES AND/OR EXCAVA110NS IS NEEDED, IT NALL BE C�NQUCTED IN � , ;y i2C1# MIN TENSItE �STRENGTH, C4NTOUR lfNES.
<br /> ACCORDANCE WITH D.Q.E STANDAROS. AI1 STORMWATER THAT LEAVES T#-IE PROJECT i �" �� � � UV STAB��a2�D :
<br /> SUGGESIED BMPs/6�1Ps TO BE USED: i F�p � �< ,;� � ? �
<br /> COE STD DETAIL �214: TEMPQRARY SIL1' FENCE SITE WILL COMPLY WlTH QISCHARGE REQuIREMENTS. �y� ��- ��,i:; t�,4, � 5. DURING ExCAVATION, MiNinn�zE Q�SruR��NG i p
<br /> �V�v��° �°�33; 50�� ����_ ��;,.,�yk_.- '�".4�,t'.< T'FiE GRQUiUD ARC}UNp TRENCN AS MtJCH AS IS � t�
<br /> ELEMENT �5: STABiLIZE SQILS F�� NT �1: MAlNTA1N BMPs �:, '�,� , '��; __ ---- FEAStBLE,AND SMQ�TH SURFACE FOCIOWING
<br /> �. EXPQSE� AND UNWORKED SOILS SHALL BE STABILIZED BY APPLICATIOM OF EFFECI1VE 1, iNSPECT EROSiON CONTROL DEVICES 4N A WEEKLY SASIS AND AFTER EACN RUNOfF � '��'�.,��_ ;. n,<�-- '.�.._ EXCAVATION TO AVOID CQNCENTRATING Fl.QWS. � �
<br /> BMPs THAT PRO7ECT 1NE SOIL FORM EROSIYE FORCES OF RAINDROPS. FLOWING WATER, EVEMT. MAKE NECESSARY REPAIRS AND MAINTENANCE TO ENSURE CON?1NUED x��, {`�fir {` s
<br /> �____ _ COi�tIPA�710N MUST BE ADEQUATE TO PREUENT 3
<br /> AND WIND. PERFORMANCE OF EROSION AND SEDIMENT CONTROLS. BURY GEO7EXTILE ', � UNDEaCUT�iNG FLQWS. 3
<br /> 2. TO PREVENT EROSION, NO SOILS SHALI REMAIN EXPOSED AND UNWORKED FflR MORE fN TRENCH � �s ;
<br /> THAN il-IE TIME PERIODS SET FORTH BELOW: 2. WHEN SEDIMENT ACCUMULATION IN SEDIMENTATIOP! STRUCTURE5, OTHER THAN INIET � -BACKUP SUPPORT `
<br /> DURING THE WET SEAS4N (OCTOBER 1 - APRiL 30 : 2 DAYS PROTECTION QEYICES, HAS REACHED A POlNT ONE-THIRD DEPTH OF SEDIMENT STRUCTURE i sF �
<br /> GEtaTE?(Ti�E fOR SILT FEN�E '� F W
<br /> DURING THE DRY SEASON (MAY 1 - SEPT. 30): 7 DAYS OR DEVICE, OR IF FLOW THROUGH THE DEVICE IS REDUCED BY MORE THAN QNE-THIRD � � SEE STAt�DARD SPECIFECATioN . �a STEEL POST �TYP1CAl) I �
<br /> THIS STABILIZATION REQUIREMENT APPLIES TO ALL SOILS Ohl �ITE, WHETHER AT FINAL CAPACITY, 1HE CONTRACTOR SHALL REMOVE AND REPlACE DISPOSABLE DEViCES OR � �+ � � '*F' {TYPlCAL) --------. i �
<br /> GRAQE QR NOT. THESE 11MES A�AY BE ADJUSTED BY THE LOCAL PERMlTTING AUTHORITY CLEAN AND DISPOSE OF SEDtME�l7. p 1 SECTION 9-33.2 (1j,TABI� 6 -, 1 ;
<br /> IF IT CAN BE SNOWN THAT SITE CONDITIONS OR THE AVERAGE T1ME BETWEEN STORM . �j ! } �� !� '�`` E 0
<br /> EVENTS JUSTIFlES A DIFFERENT STANDARD. 3. TEMP4RARY EROSION AND SEDIMENT CONTROL BNIPs SHALL BE REM�VED WlTHlN 30 � ; ` t
<br /> 3. SOILS SHALL BE STABILIZEQ AT THE END 4F THE SHIFT BEFORE A Ht�LIDAY OR DAYS A�TER FlNAL SITE S7ABWZATION IS ACH►EVED OR AFTER THE IEMPORARY BMPs ARE `�'._ ___�- r''`'�c�'',� �I :���r I Z
<br /> WEEKEND iF NEEQED SASED ON THE WEATNER FORECAST. N4 LONGER NEEDED. TRAPPED SEDIMENT SHALL BE REINdYED aR STABILIZED C}N SITE. ��-*-'r����L� 11 -- "�� �� `
<br /> 4. SOIL STOCKPILES SHALL BE STABILIZED FR�+,1 ERflSION, PROTECTED WITH SEDIMENT DISTURBED S�IIS SHALL BE PERMANENTLY STABIUZm. ,. '
<br /> : ; ,
<br /> ; ;
<br /> TRAPPING MEASURES, AND WhIERE POSSIBIE, BE LOCATED AWAY FROM STORM DRAIN ��5�✓> c..��� � ,r►o►,q�.,,�e--� v�-s o►�-> � � TYPICAL IN�TALI.ATlC�N DETAIL �-�`' ' = ��.��� `�'�; i
<br /> INLE7S, WATERWAYS, AND DRAINAGE CHANNELS. � _ _ _. __ .. .___. _ � ;4,� � ,: �,��G FABR�C �,�ti s, � �
<br /> F NT 2: �AANAGE TNE PROJECT �- ��� Q� (GEDTEXT(�E " t#� '
<br /> 5. APP�ICAB�E BMPs INCLUDE, BUT ARE N4T LIMITEQ T0: TEMPORARY AND PERMANENT �J�d�-�1 �,,,�,,�;$ �.; � �,f,[' ; �
<br /> SEEDING, SODDlNG, , 1. PNASING OF CONSTRUCTION: � �'���: ' {TYPICAL �' �� : ;
<br /> MULCH{NG PLASTIC COVERING, EROSION CONTROL FABRICS AND -�. ) �r K��;
<br /> MATTING, SOIL APPLICATiON OF PaLYACRYLAMIDE (PAM), THE EARLY APPIlCAT10N OF a) DEVELOPMENT PROJECTS SHALL 8E PHASEQ WHERE �EASIBLE IN 4RDER TO PREVENT, � INSTALL BACKUF SUPPt7RT FQR �{»''= � � +�s,., +
<br /> GRAVEL BASE ON AREAS TO BE PAVED AND DUST CONTRQL. SELECT SOIL STABIlJZATION 70 TFiE MAXIMUM E?(TENT PRACTiCABLE, THE TRANSPORT QF SEDIMENT FR4M 1HE � THE GEOTEXTfLE SEE STANDARD � `,',`�`� �
<br /> MEASURES SHALL BE APPROPRIATE FOR THE TIME QF YEAR, SITE C4NDITIONS, ESTIMATED DEVELOPMENT SITE DURING CONSTRUCTION. REVEGETATION OF EXPOSED AREAS AND � ����,r�� �
<br /> � DURATtON 4F USE, AND THE POTENTIAL WAIER QUALITY IMPACTS. MAINTENANCE OF THAT VEGETATION SHALL BE AN INTEGRAL PART OF THE CLEARING ` } ` SPECI�ICATEON SECTI�QN 8.01.3(9)A --, �y�, � ; � � �
<br /> p 6. REMOVE ALL TESC MEASURES AS SOON AS PRACIICAL AFTER ESTABLISHMENT OF ACTlVITtES FQR ANY PHASE. � �' � � � t'r')
<br /> si�,
<br /> tJ.1 y ` �: $a t i
<br /> UNIFORM GRASS GROWTH 4R iNSTALLATION OF OTHER PERMANENT STABILIZATION b) CLEARING AND GRADING ACTtVi11ES FQR DEVELOPMENTS SHALL BE RERMITTED ONLY IF `�G. ��, ( �} �► E.-- N
<br /> � MEASURES. REPAIR ANY DAMAGE TO STABILIZED SURFACES AFTER REMOVAL �F IESC CONDUC1ED PURSUANT TO AN APPROVED SITE DEVELOPMENT RLAN (e.g., SUBDIVISION x � � " � 5�P��P i � � W
<br /> a MEASURES. APPROVAL) THAT E5TABl1SHES APPROVED AREAS OF CLEARING, GRADING, CUTTING AND � ; �� �p."�.�,�P SP�ICED FENCE SECTIC►NS SHALL gE CL05E ENdUGN TOGETNER � � W OQ
<br /> � FlLLING. WHEN ESTABLlSHINC THESE PERMITTED CLEARING AND GRADfNG AREAS, ? � p ,,-�,��,"� TO PREVENT SILT LA[7EN WA7ER FRQM ESCAF'IMG THRQUGH THE � O � �
<br /> �;�. �
<br /> � SUGGESTED BMPs/B�IPs TO BE USED: CONSfDERAl10N SHOULD BE GIYEN T4 MINIMIZING REMOVAL OF EXISTING TREES AND ? ` -Qp.p FENCE AT THE OVERLAP. � � � � Q
<br /> � BMP C120; TEMP�2ARY /tN0 PERMANEN7 SEEDING MINIMIZING DISTIlRBANCE AND Gt�MPACTION OF NATIVE SQILS EXCEPT AS NEEDED FOR � � F � SPLICE DETAIL � � U� '�j
<br /> � BMP C140: DUS7 CONTRO� BUILOING PURPOSES. THESE PERhAiTTED CLEARING AND GRADING AREAS AND ANY � � !
<br /> � OTHER AREAS REQUIRED TO PRESERVE CRITICAL OR SENSITIVE AREAS, BUFFERS, NATIVE ' � � �_=- � � ; � �
<br /> � ELEA�ENT �6: PROTECT SLOPES GROWTH PROTECTION EASE�AENTS QR TREE RETENTION AREAS AS MAY BE REQ111RED ? _ - TYPICAL Sil.T FENCE tiNS�C?T 5�'D pLAN I-30.10-D�ACCEPTABIE S�E�STITUTE � ` Q` _ �
<br /> a 1. DESIGN, CQNSIRUCT, AND PHASE CUT AND FlL.L SLOPES IN A MANNER THAT WIIL ' �-; j _ :- r 1 EXCEPT STEEL FOST REQUIRED � � �-
<br /> BY LOCAL JURISDICTIQNS SHAtL BE DELINEATE(} ON THE SITE PLANS AND 1NE WITH BACKUP SUPPOR7 ; �-
<br /> Z MINII�IZE EROSION. APPUCABLE PRAC7ICES INCLUDE, BUT ARE NOT LIMITED T0, REDUCIIdG � . _'l. - _ ` � - ' � �
<br /> bEVEIOPMENT SITE. � - �.P � �j,�
<br /> o CONTINUOUS LENGTH OF SLOPE WiTH TERRACING AND QIVERSIDNS, REDUCiNG SLOPE � _ � �� � �Q P� i � � r'` �
<br /> q� STEEPNESS, AND ROUGHENlNG SLOPE SURFACES {e.g., 1RAC1� WALKING). 2. SEASONAL WORK LIMITAl10NS; ;;; �"j� �,'� ISC7METRIC CITY CIF EVERETT : w 1�., N
<br /> � 2. O�F-SITE STOR�IWATER RUN-ON OR GROUNOWATER SliAtl BE DiVERTED AWAY FROM FROM OCTQBER 1 THROUGH APRIL 3d, CLEARING, GRADING, AND OTHER SOIL DiSTUR8ING �� '�F� '� �� , . q�a�� �v�' � PUBLIC WORKS DEPARTMENT ; W � � W
<br /> a SLOPES AND DISTURBED AREAS WITH INTERCEPTOR DlKES, PIPE�, AND/OR SWALES. ACTlW11ES SHALL ONLY BE PERMITTED IF SHQWN Tfl THE SAl1SFACTIQN OF THE LOGAL 1 r'� �'' " ' � -� �
<br /> _ � �, _ ; _ , ---_-_
<br /> W OFF-SITE STORMWATER SHOULD BE MANAGED SEPARATELY FROM STdRMWATER PERMITI1NG AUTHORITY THAT THE TRANSPORT OF SEDIMENT FRQM THE CONSTRUCTiON SITE � .: _ 20 ��-� �. - • a 0 � t� W
<br /> '-t-'J4.�5� HE=�' .ft+::RFr�V E4:._SSiWt...t '- E<y 3 �
<br /> �' GENERATED �N TH E SITE. T O R E C E I V I N G W A T E R S W{L L B E P R E V E N T E D T H R d U G H A C O M 8 1 N A T i 0 N G 1 F T H E F O L L O W I N G: '-� F `�_.-�' � 03j17/2017; a
<br /> a 3. Q4 NOT CLEAR AND GRUB SLOPES GREATER THAN 4 (H�RIZONTAL):t (VERTICAL) a} SITE CONDITIONS IMCLUDING EXISIING VEGETATIVE COVERAGE, SLOPE, S41L TYPE, AND '�"' �' ! � SHEET TITLE:
<br /> � UNLESS FURTliER WORK RESULTING IN STABILlZAl10N OF THE SLOPES TO BE CI.EARED AND pROXIMITY T(7 RECEIVING WATERS: AND " = ; TE M PO RARY S I LT F E N C E ; Z�� :
<br /> QGRUBBED IS SCHEDULEO. b} LIMlTATIONS ON ACTIVITIES ANQ THE EXTEND {�' Q15Ti1RBED AREAS; AND K : �
<br /> �_ ______. _. __.___ �_!___._._____ ._.__.____.______�___ _--
<br /> 4. EXCAWATE MATE IAL SHALL BE PLACED ON THE UPWILL SIDE 0�' TRENCHES, c) PROPdSED EROSION AND SEDIMENT CONTROL �IEASURES. '`� -- �
<br /> _,._ __._._____._____�,. _- ___ --,
<br /> __----------------_------�._.. _ ___.
<br /> o CONSISTENT WITH SAFETY AND SPACE CONSIDERATiflNS. �
<br /> Z`� 5. CHECK DAMS SHALL BE PLACED AT REGULAR INTERVALS WITHIN CONSTi2UCTED BASED ON THE INFORMATION PROVIDED AND LOCAL WEATHER CONDITIONS, THE PROJECT
<br /> CHANNELS THAT ARE CUT D4WN A SL(}PE. LEAD MAY EXPAND OR RESTRICT THE SEASONAL LIMITATION ON SIlE DISTIlRBANCE. THE
<br /> - PROJECT LEAD SHALL TAKE ENFQRCEMENT ACTION - 5UCH AS NOTICE OF VIOLATION,
<br /> p SUGGESTED BMPs/BMPs TO BE USED: ADMINISIRATIVE ORDER, PENALTY, OR ST4P-WORK OROER UNOER THE FOl.LOWING --
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<br /> BMP C120: TEMPORARY AND PERMANENT SEEDING CIRCUMSTANCES: ��+a� BEN DAVIS
<br /> � - IF, DURING THE COURSE OF ANY CONSTRUC710N ACTIVtTY QR SOIL DISTURBANCE DRAFTER:
<br /> g DURING THE SEASONAL UMITATIC?N PERiOD, SEDIMENT LEAVES THE CONSTRUCTION SITE
<br /> � CAUSING A VIOLAT{ON OF THE SURFACE WATER QUAL.ITY STANDARD; QR DATE: Q5IO3IZO')S
<br /> � - IF CLEARING ANp GRADING UMITS 4R EROSION AND 5EDIMENT C4NTRQLS t�EASURES
<br /> � 5HOWN IN THE APPROVED PLAN ARE NOT MAINTAINED. ��E�'
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