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Home My WebLink AboutR-3742031 ®- -V9 lJLSkJO l VJ9 u o LS IJ uVO9 uuo V ISO uu.uvu0 C711 GRAPHIC SCALE EROSION AND SEDIMENT CONTROL PLAN -30 U 15 30 so SCALE: 1"=30' ( IN FEET (i) 3 ) 1 inch - 90 ft BY: BY: BY: BY: SET REBAR AND CAP IN ASPHA� AT THE CENTER OF COL -D SAC PSOITION FOR THE LAT OF L' O7 SILT FENCE PER COR STD PLAN 214.00/CO.3 O2 CONSTRUCTION ENTRANCE AT EXISTING PAVED DRIVEWAY 03 CATCH BASIN PROTECTION PER CDR STD PLAN 216.30/CO.3 ffiC,10AIdL490M GONSTRU MV MQLaCE S7AW.4W ESCPLANNOTE& 1. PRE - CONSTRUCTION MEETING. 1. APPROVAL OF THIS EROSION AND SEDIMENTATION CONTROL (ESC) PLAN DOES NOT CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR DRAINAGE DESIGN (E.G. SIZE AND LOCATION OF ROADS, PIPES, RESTRICTORS, CHANNELS, RETENTION 2 POST SIGN WITH NAME AND PHONE NUMBER OF ESC SUPERVISOR (MAY BE CONSOUDATED WITH THE REWIRED r ,qr de rr GCVE /WM.MY FACILITIES, UTILITIES, ETC.) !f NOTICE OF CONSTRUCTION SIGN). 2 THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE APPLICANTASC SUPERVISOR UNTIL ALL CONSTRUCTION IS 3. FLAG OR FENCE CLEARING LIMITS. ' APPROVED. 4. INSTALL CATCH BASIN PROTECTION IF REWIRED. 3. THE BOUNDARIES OF THE CLEARING UNITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED BY SURVEY TAPE OR FENCING, IF REWIRED, PRIOR TO CONSTRUCTION (SWAM APPENDIX D). DURING THE CONSTRUCTION PERIOD, NO 5. 6. GRADE AND INSTALL CONSTRUCTION ENTRANCE(S). INSTALL PERIMETER PROTECTION (SILT FENCE, BRUSH BARRIER, ETC.). DISTURBANCE BEYOND THE CLEARING UNITS SHALL BE PERMITTED. THE CLEARING UNITS SHALL BE MAINTAINED BY THE APPUCANTASC SUPERVISOR FOR THE DURATION OF CONSTRUCTION. 7' 5 4. STABIUZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES, SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH 8• GRaa j PADS, MAY BE REWIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN AND TRACK OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. 9. CONSTRUCT SURFACE WATER CONTROLS (INTERCEPTOR DIKES, PIPE SLOPE DRAINS, ETC.) SIMULTANEOUSLY 5. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING SO AS TO ENSURE THAT THE TRANSPORT OF SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEMS, AND a+xR9wRWRwnna � ADJACENT PROPERTIES IS MINIMIZED. WITH CLEARING AND GRADING FOR PROJECT DEVELOPMENT. COORDINATE WITH WALL CONSTRUCTION AND FILL 6. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS PLACEMENT AND ADJUST SWALES AND SEDIMENT TRAPS AS NECESSARY. AND MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITIONS (E.G. ADDITIONAL COVER MEASURES, ADDITIONAL SUMP PUMPS, RELOCATION OF DITCHES AND SILT FENCES PERIMETER PROTECTION ETC.). 10. MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH KING COUNTY STANDARDS AND 7, THE ESC FACIUTIES SHALL BE INSPECTED DAILY BY THE APPUCANT/ESC SUPERVISOR AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING. WRITTEN RECORDS SHALL BE KEPT OF WEEKLY REVIEWS OF THE ESC FACILITIES. MANUFACTURER'S RECOMMENDATIONS. 8. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON OR SEVEN DAYS DURING THE DRY SEASON SHALL BE IMMEDIATELY STABIUZED WITH THE 11. RELOCATE EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO THAT AS SITE CONDITIONS CHANGE APPROVED ESC COVER METHODS (E.G., SEEDING, MULCHING, PLASTIC COVERING, ETC.). THE EROSION AND SEDIMENT CONTROL IS ALWAYS IN ACCORDANCE WITH THE KING COUNTY EROSION AND g. ANY AREA VIEWING ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN 7 DAYS. 12 SEDIMENT CONTROL STANDARDS. COVER ALL AREAS THAT WILL BE UNWORI(ED FOR MORE THAN SEVEN DAYS DURING THE DRY SEASON OR TWO 10. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WTHIN 24 HOURS FOLLOWING A STORM EVENT. DAYS WRING THE NET SEASON WITH STRAW, WOOD FIBER MULCH, COMPOST, PLASTIC SHEETING OR 11. AT NO TIME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT EQUIVALENT. FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 13. STABILIZE ALL AREAS THAT REACH FINAL GRADE WITHIN SEVEN DAYS 12. ANY PERMANENT RETENTION/DETENTION FACILITY USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE PERMANENT 14. SEED OR SOD ANY AREAS TO REMAIN UNWORKED FOR MORE THAN 30 DAYS. FACILITY IS TO FUNCTION ULTIMATELY AS AN INFILTRATION SYSTEM, THE TEMPORARY FACILITY MUST BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILITY. 15. UPON COMPLETION OF THE PROJECT, ALL DISTURBED AREAS MUST BE STABILIZED AND BMPS REMOVED IF 13. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN MANUAL APPROPRIATE 14. PRIOR TO THE BEGINNING OF THE WET SEASON (OCT. 1), ALL DISTURBED AREAS SHALL BE RENEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. A SKETCH MAP OF THOSE AREAS TO BE SEEDED AND THOSE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE DOES INSPECTOR FOR REVIEW. . . . . . . . . . . . . . . . . . . . . -ORE Y CAJJ- BET 0V DIG . . . . . . . . . . . . . . . . . . . . , REVISION on Cum mmmv • WOCY NM, IglmaNw: NNr ,wa�%iw, 1 =30' �� DATUM R NL 8.1,F naR,Fi r ,qr de rr GCVE /WM.MY � Q r R- 314203 YIXq N RLIENGGC Y W LYYIYL MIOq.IYFIMw'.ARK4PI i' Goerawewr.Gaua ': IOGFYIE LIYINLIF6, xnu�rw RFr.a.R�so 6ROloxrRar m > °o naR,Fi u 3 � Q r !f i m CD m m ° p ar ' D 0 J 3 = C n m •... rrNa,lgol - i 5 FIE..,Irl6r a 3 1 GRaa j T \ , a+xR9wRWRwnna � INGGLGwRarYY L WaIIdPYE e 1.'I. fiLTFB10E WYEIgE0WlYwlIE OFNLPGRREDMFIB. 1]. GLT F91LGgM] IMGILrTOTIaTLOLWIMIr�pyLxdrwlLloomnEVUlwRluFdanLdawwowaa N!!lOYL11MTC0 FIQMMdfE WIfIGYiC1NROWNTK dRIN1rMIwITOAOWf11W dpY L YY.IMGG/TMlAlaq'NlEngli s,. 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