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HomeMy WebLinkAboutR-366310EROSION CONTROL NOTES 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE CONSTRUCTION MEE7ING MUST BE HELD WITH 774E CITY OF RENTON DEPARTMENT OF PUBLIC WORKS, DESIGN ENGINEERS. 2. ALL LIMITS OF CLEARING AND AREAS OF VEGETATION PRESERVATION AS PRESCRIBED ON THE PLAN SHALL BE CLEARLY FLAGGED IN THE FIELD AND OBSERVED DURING CONSTRUCTION. 3. ALL REQUIRED SEDIMENTATION/EROSION CONTROL FACILITIES MUST BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND /OR OTHER CONSTRUCTION TO INSURE THAT SEDIMENT LADEN WATER DOES NOT ENTER THE NATURAL DRAINAGE SYSTEM. ALL EROSION AND SEDIMENT FACILITIES SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING AND /OR CONSTRUCTION IS COMPLETED AND POTENTIAL FOR ON -SITE EROSION HAS PASSED. THE IMPLEMENTATION, MAINTENANCE, REPLACEMENT AND ADDITIONS TO EROSION /SEDIMENTATION CONTROL SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMITTEE. 4. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE PERMITTEE SHALL ANTICIPATE THAT MORE EROSION AND SEDIMENTATION CONTROL FACILITIES WILL BE NECESSARY TO INSURE COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE PERMITTEE TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY HIS ACTIVITIES AND TO PROVIDE ADDITIONAL FACILITIES, OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY BE NEEDED TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. 5. APPROVAL OF THE PLAN IS FOR EROSION /SEDIMENTATION CONTROL ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION FACILITIES. 6. DURING THE TIME PERIOD OF NOVEMBER 1 THROUGH MARCH 31, ALL PROJECT DISTURBED SOIL AREAS GREATER THEN 5,000 SQUARE FEET, THAT ARE TO BE LEFT UNWORKED FOR MORE THAN TWELVE (12) HOURS, SHALL BE COVERED BY MULCH, SODDING, OR PLASTIC COVERING. 7. IN ANY AREA WHICH HAS BEEN STRIPPED OF VEGETATION AND WHERE NO FURTHER WORK IS ANTICIPATED FOR A PERIOD OF 30 DAYS OR MORE, ALL DISTURBED AREAS MUST BE IMMEDIATELY STABILIZED WITH MULCHING, GRASS PLANTING OR OTHER APPROVED EROSION CONTROL TREATMENT APPLICABLE TO THE TIME OF YEAR IN QUESTION. GRASS SEEDING ALONG WILL BE ACCEPTABLE ONLY DURING THE MONTHS OF APRIL THROUGH SEPTEMBER INCLUSIVE. SEEDING MAY PROCEED, HOWEVER, WHENEVER IT IS IN THE INTEREST OF THE PERMITTEE, BUT MUST BE AUGMENTED WITH MULCHING, NETTING, OR OTHER TREATMENT APPROVED BY THE CITY OF RENTON, OUTSIDE THE SPECIFIED TIME PERIOD. 8. FOR ALL EROSION /SEDIMENTATION CONTROL PONDS WHERE THE DEAD STORAGE DEPTH EXCEEDS 6 INCHES, A FENCE, A MINIMUM OF 3 FEET HIGH IS REQUIRED, WITH 3:1 SIDE SLOPES. 9. A TEMPORARY GRAVEL CONSTRUCTION ENTRANCE 30' X 50' X 8" OF 4" - 6 INCH QUARRY SPALLS SHALL BE LOCATED AT ALL POINTS OF VEHICULAR INGRESS AND EGRESS TO THE CONSTRUCTION SITE. 3 EWEN 1. COMDITIOMOFMME 1.1. TIE WNOFFTNATE STMLLSEPFD TEFORAISTOTN0RN111ETS DONNbiOPEAND WTIHN 600 FEETO Ap5T1RBED OR CONB1R11CT10H AREA,INLESS NTERSTLEGTCFMASNVIML BE CONVEYED TOA8EDMENT FDIOORTRM. 12 ANY BE II6ED ANYWISE ATTTIE APPMfANI'B pIBCREfIONTO PROTECT ORANAOE SYSTEM! 1d 11E CONTRIBUTNti DRAIIAME AREAMOSTIIOTBE LAR9BtTWW 1ACRE. 2 OOIB11 MIp NRAWTIp1YNfIGlION6 21. FILTER FABRICIBOlYA3AVA: D WETS PdONO VALNDT BEATRAFFlC CONCERN AND INHERE SLOPE EROSION WILL NOT RESULT RTHE CUfIB 6OVB[TOPPEDBY POIOFD WATER 22 TIEPLACBBNIOFAFLTEM FABMC UNDER ORATESIBOBERNlY f'ROHBREO ALTO THE 115E OF FLIER FABRIO OVER GRATES IB SRUCILV lMl ®MO06COIRAOFD. a AMANIBINx'E arA1WID11 31. ANYA%MIIAATED BEDNBlT 011 OR AROIItD STET PROIECiTON 3HIML BE REMOVED xMEOIATELY .SEDYMEM SHNI NOT BE REMOVED WITH WATlRANOALLSEDIBITYUSTSE OIBPOBEDOF AS FLL ON STIE OR NAUID OFF SfTE. PUBUC WORKS FILTER PA HM PROTECTION STD' PIiN - 216.20 DEPARTMENT MARCH 2008 .IMIBNFLTEPFI81lC9MLLBE0rIID AT FOSI31gE STNIq pxE IMli4, t11 � sImMVFf@IO0u39Wra mlWr ro�renFO.3 NgFASffl 5P105FYL1H 606 (gN1YFAM6 roeNM3FeAClaonWlFn BS2y YFYY YAe BY1AOl WAEaI mWNMMC Caruaro 91RBnIXFA9eI.IxFD rwAMnA•r1Ero1 1WOP111TFfY1wTm Nnli£bti ZM'Nd.IIMSI$8IF8fElfF � FCY'le, !SIAM M FAINNFNT 1. CONOIf=W ME 1.1. SLTFENDEIMYBEUSEDOOMI6LDPE OFALLpSITRBEDAREAS. 12 SLTFENCEISNDTNTENOEO TDTREAT CONCIBIITIAIED FLONB, NORMS MENDED TO TREAT SIIBSTANINLANOKNOB OOVEfSAIp FLOW. ANY CONCBtf RATED FLOAN MDE T BE CDNVEYEp TIxtO11GH THE DRANIAOE SYSTEM TO A SFDM3IT TRAP CR FOLD. 2 DEMGx AIO NBTAUTxN BPECROAIIDNg 21. THE GEOTEMLE IISFD MOSTNETTHE STAIOARD LLSTEO BELLOW.ACOPY OF iIE YAIAIFACNRERTi FABRIC SPECIFICATIONS MOST BE AVAILABLE ON SITE. Aa IAmATNIW sImMVFf@IO0u39Wra mlWr tAAB1D1v1EHIXMWRIXI AIMd®t 5P105FYL1H 606 (gN1YFAM6 WAI9IFMTMIry pB! BS2y YFYY w"1NV1[STNiw V1ARNP1� 1016MAiO101MSRfMNfAYOi W 1016 MM. (41 STY W p SA9Nirt FAiK MY1NSMewuTNN nYIAM WIWNfMAIEIBIn1MQ 41Y AYYX 22 STANDARD STRENGT tAAB1D1v1EHIXMWRIXI AIMd®t BPACINGMAYBERE 2A MERETHEFENCEI 24. IFATYPICN.BILTFE W IS NELL BURIED AIO W FENCE 3. IIIiI1IEI11AI1fE BTAMIMR 3.1. AHY DAIAAOE SHALL 3.2 IF CONCBNMTED F 3.3. IT IS NPORTANTTO, THEN CAUSING CNA SEDIMEN STHE N. 3.5 FILTER FABII IF THE FRTEft FABItN PUBUC WORKS SILT FENCE DEPARTMENT NOG Oft CLOSER POST NCE B INCHES OF THE SILT FENCE BB OR UNDERMINE THE SILT BREAKDOWN. IT SHML M REPLACED. STD. PIAN - 214.00 LUA 07- 140 -SHP � pavEwArsswueevAV ®ror1EmIF sS � oFAawTT+nBro NFTAw1nMff TNM �,.ro mlcmiclnxelmurz.roAwo fA' / owA'atioF,xEwvnvAr RNr1WTTE B -mrM F3naviceTx cwowlAnaorlWr NNds BAYNwrIMFVM a r NSiA11 pREWAY pAVB1r i rKJE nARflAfnlf6 tlfW FpFeHl. A9 FFR OIYNOIDS(M6VVS PdWMNV SEMIS OWT:AE IS WI rltl0F2S � 9� AOV®EFLLLYOIIIOF i. IMOIY INfiREBgE(x£%NFA I . CONDITION OF USE 1.1. CONSTRUCTION ENIRWCE SHALL BE STABILIZED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AND TRAVELING ON PAVED ROADS OR OTHER PAVED AREAS WITHIN 1,000 FEET OF THE SITE. 2 DESIGN AND INSTALLATION SPEC /iCAmous 2.1. NOG FUEL(WODDBASEDMIILCH) MAYBESUBSTITUTED FORORCOMBNIED WITH WARRYSPALLS W ARESTHATWILL BOTSEUSED FOR PERMANENT ROADS. HOG FUEL IS NOT RECOMMENDED FOR ENTRANCE STABILIZATION IN URBAN ARE A& THE INSPECTOR MAY ATANYTMEREOURETHEUSEOFOUMMSPALLS FTHE HOG FUEL IS NOT PREVENTING SEONEt1TFRlMI BENIGTRACKEDDONTO PAVEMENT OR IF THE HOG FUEL IS BEING CARRIED ONTO PAVEMENT. 22. FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE. 23. WHENEVER POSSIBLE. THE ENTRANCE SHAL BE CONSTRUCTED ONAFIRM. COMPACTED SUBGRAOE. THIS CAN SUBSTANTIALLY INCREASE THE EFFECINENESS OFTHE PAD AND REMCE THE NEED FOR MANIEWWCE. 1 MAINTENANCE STANDARDS 3.1. QUARRY SPATS SWILL BE ADDED IF THE PAD IS NO LONGER IN ACCORDANCE WITH THE SPECIFICATIONS. 32. IF THE ENTRANCE IS NOT PREVENTN(S SEDIMENT BEING TRACI(:D ONTO PAVEMENT, THEN ALTERNATIVE MEASURES TO IIT•EP THE STREETS FREE OF SEDIENT SHALL BE USED. THIS MAY INCLUDE STREET SWEEPING. M INCREASE N THE DNEN310NS OFTHE ENTRANCE, OR THE INSTALLATION OF THE WHEEL WISH. R WASHING IS USED, IT SHALL BE DONE ON AN AREA COVERED WITH CRUSHED RDCIL AND WASHED WATER SHALT. DRAM! TO A SEDIMENT TRAP OR POND. 3.3. ANY SEDIMENT THAT IS TRACIMO ONTO PAVEMENT SHALL. BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE REMOVED OR STABILIZED ON SITE THE PAVEMENT WALL NOT BE CLEANED BY WASTING OOLAN THE STREET, EXCEPT WHEN SWEEPING IS INEFFECTIVE AND THERE IS ATHREAT TO PUBLIC SAFETY. IF IT NECESSARY TO WASH THE STREETS, A SMALL SUMP MUST BE CONDUCTED. THE SEDIMENT WOULD THEN BE WASHED INTO THE SUMP MERE IT CAN BE CONTROLLED AND DISCHARGED APPROPRIATELY. 3A. ANY QUARRY SPALLS THAT ARE LOOSENED FROM THE PAD AND END UP ON THE ROADWAY SHALL BE REMOVED IIEDIATELY. 3.5. IF VEHICLES ARE ENTERING OR EXITING THE SITES AT POINTS OTHER THAN T CONSTRUCTION ENTRANCE(S). FENCING SHALL BE INSTALLED TO CONTROLTRAFFIO. ®PUBUC WORKS STABILIZED STD. PIAN - 215.10 �.� DEPARTMENT CONSTRICTION BNT'RANCE MARCH 2008 i GIIIBTENVIESTPFDNNDH A51M ]BDP3I MN. tAAB1D1v1EHIXMWRIXI AIMd®t 3N MA[. MA{EN WASTSfRTNGR1 A31MD3' M mP51 MN. Rat AmA A6 us. sTANaum LEVty R- 366310 RECOMMENDED FOR APPROVAL BY BY BY BY BY DATE DATE DATE DATE DATE 3 to NE P1 y A gWL W� 3' W W) W W z� Lij � O O N H W NE P1 ry 0 0 I n rn y A gWL C Tm.-I z G m � z� Lij � rl/ W c O O Z Q N N Ld W S G Q of Z 0^^ EL W ry 0 0 I n rn /}6,: 2 -3�(a y A C Tm.-I z G m � z� 1 � rl/ W /}6,: 2 -3�(a