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974 <br />57 <br />5 <br />oG <br />v, <br />00, '•o n <br />DRAWING NOTES: <br />1O INSTALL SILT FENCE. <br />O INSTALL HIGH VISIBILITY FENCE. <br />03 ATTACH SILT FENCE TO EXISTING CHAINLINK FENCE WITH ZIP TIES <br />® INSTALL RUMBLE GRATES. <br />O APPLY HYDROSEED TO STABILIZE ALL EXPOSED AND UNWORKED SOILS. <br />© LIMITS OF CONSTRUCTION. <br />7O INSTALL BELOW GRATE INLET DEVICE (BGID). <br />® PAVED ENTRY SWEPT DAILY. <br />EXISTING <br />---- 567 _ <br />SUBSTATION <br />SECURITY <br />SUBSTATION <br />�./-ROCK SURFACING <br />�9D <br />FENCE <br />DRIVE <br />GATE <br />h <br />IIj� <br />I <br />L6� <br />.. <br />TBM <br />ONTAIWE �CNPIf <br />SLAB <br />'TOC (5n'9.09) <br />-_ <br />l <br />�� <br />�d <br />d 0 <br />- <br />r <br />£i <br />0 <br />'a <br />Q <br />0 <br />i <br />�pc g <br />STREET•• <br />I <br />lg <br />�SsSf, r36�. ;s5: <br />.? , _,' <br />& <br />— <br />Vl <br />m' C <br />4„ SD <br />�.ti61 <br />GA?EDRIVE <br />EXIST(NG 6' <br />CHAINL INK <br />FENCE <br />' CATE CA7E1 <br />1 <br />r \ i WV ... <br />NORTH <br />q�4- TYP 2 C <br />.COS <br />K4 •c w�� 6" <br />ABANDON '•, <br />7 \ <br />VAULT <br />VAULT LANDSCAPED`o \�� -" 563' , <br />AREA <br />4 TYP <br />VAULT ;' Q•,. K4 <br />— <br />h <br />•'., VAULT <br />CBI`'. <br />FENCE <br />—x x — <br />• • <br />LFlNDSCAPED AREA r --- . <br />/�CONG GUTTER. TYP -�' ..__- ..__._.... <br />\ <br />ELEMENT *1 - PRESERVE VEGETATION/MARK CLEARING LIMITS <br />VEGETATION WHICH MAY BE LEFT IN PLACE WILL BE, THE CLEARING LIMITS WILL BE IDENTIFIED BY USING A COMBINATION <br />OF HIGH VISIBILITY FENCING AND SILT FENCE. <br />ELEMENT *2 - ESTABLISH CONSTRUCTION ACCESS <br />THE SITE WILL BE ACCESSED IN A SINGLE LOCATION AS DEPICTED UPON THE SWPPP. THE ACCESS WILL BE STABILIZED <br />BY USE OF RUMBLE STRIPS. ANY TRACKING THAT HAPPENS WILL BE SWEPT DAILY OR MORE OFTEN IF REQUIRED. <br />ELEMENT *3 - CONTROL FLOW RATES <br />NOT APPLICABLE. WE DO NOT EXPECT ANY PROPERTIES DOWNSTREAM TO BE AFFECTED BY THE EXPANSION OF 20TH <br />AVENUE SUBSTATION. <br />ELEMENT *4 - INSTALL SEDIMENT CONTROLS <br />S'Alp pp SEDIMENT CONTROL WILL BE ESTABLISHED THROUGH THE USE OF SILT FENCE. <br />99YY ff�- fI�-11�- ELEMENT •5 - STABILIZE SOILS <br />V - 20' SOILS WILL BE STABILIZED TEMPORARILY BY APPLICATION OF COVER MEASURES SUCH AS STRAW OR PLASTICS WHERE <br />COVER MEASURES ARE NEEDED FOR UNWORKED SOILS,7 DAYS DURING THE DRY SEASON,2 DAYS DURING THE WET <br />SEASON. <br />THE DISTURBED ARE TO BE ENCLOSED WITHIN THE SUBSTATION FENCE WILL BE COVERED WITH GRAVEL BASE (CSBC) AS <br />SOON AS POSSIBLE TO FURTHER PROTECT THE UNDERLYING SOILS. <br />ELEMENT *6 - PROTECT SLOPES <br />THE SLOPES ARE DESIGNED TO BE AT A 3:1SLOPE AND A SHORT LENGTH, TRACK WALKING WILL BE IMPLEMENTED TO <br />ROUGHEN THE SLOPE AND PREVENT RILLING. IN THE UNLIKELY EVENT THAT EROSION BECOMES A PROBLEM WATTLES WILL <br />LEGEND. BE IMPLEMENT TO FURTHER CONTROL THE RUNOFF. <br />ELEMENT *7 - PROTECT DRAIN INLETS <br />- - — PROPERTY LINE BELOW GRADE INLET DEVICES WILL BE INSTALLED WITHIN THE CATCH BASINS WHICH COULD SEE RUNOFF FROM THE SITE. <br />EASEMENT LINE ELEMENT *8 - STABILIZE CHANNELS AND OUTLETS <br />THE SWALE TO THE NORTH OF THE SUBSTATION WILL HAVE SEED APPLIED TO PROVIDE PERMANENT STABILIZATION FOR <br />-------4 8-------- EXISTING CONTOUR THE MINIMAL ABOUT OF RUNOFF IT SEES. <br />x — EXISTING FENCE ELEMENT *9 - CONTROL POLLUTANTS <br />SPILL PREVENTION AND CONTROL MEASURES WILL BE USED IF CONSTRUCTION EQUIPMENT REQUIRES ON SITE FUELING. <br />—� SILT FENCE WASHOUT OF CONCRETE TRUCKS WILL BE PERFORMED IN A DESIGNATED WASH OUT AREAS. <br />—x— HIGH VISIBILITY FENCE ELEMENT *10 - CONTROL DE -WATERING <br />SHOULD IT BE NECESSARY TO DEWATER AN EXCAVATION,A SEDIMENT CONTROL BAG WILL BE USED AT THE DISCHARGING <br />END OF THE HOSE AND THE RESULTING RUNOFF WILL PERCOLATE INTO THE EXISTING SUBSTATION ROCK AND SLOWLY <br />CONSTRUCTION ENTRANCE INFILTRATE. <br />ELEMENT *11 - MAINTAIN BMPs <br />ALL BMPs WILL BE MAINTAINED THROUGHOUT THE PROJECT AS REQUIRED TO ENSURE THEIR CONTINUED FUNCTIONING. <br />ELEMENT *12 - MANAGE THE PROJECT <br />CALL 48 HOURS THE PROJECT IS LESS THAN ONE ACRE, THEREFORE THE CONSTRUCTION STORMWATER GENERAL PERMIT IS NOT REQUIRED. <br />BEFORE YOU DIG 20 10 0 2p THE SITE WILL BE INSPECTED FOR CONDITIONS WHICH COULD IMPACT THE QUALITY OF THE STORMWATER AS WELL AND <br />THE EFFECTIVENESS OF THE EROSION AND SEDIMENT CONTROL MEASURES. <br />1-800-424-5555 <br />P' = 20' SCALE IN FEET ELEMENT *13 - PROTECT LOW IMPACT DEVELOPMENT BMPs <br />NOT APPLICABLE. - <br />L <br />.L. <br />f <br />a <br />o <br />3 <br />2 N o <br />J 2 <br />m a <br />(L <br />Of m <br />wto <br />U <br />WN JN <br />0.0 <br />wo <br />NNp O wo <br />33 33 <br />45418 <br />FCfSTEt"' <br />�fONAL E� <br />ORDER 100026553 <br />OPERATION <br />SCALE NOTED <br />DFTR DPA <br />CHKR <br />ENGR <br />APVD <br />DATE <br />TWENTIETH <br />AVENUE <br />SUBSTATION W <br />SWPP � <br />o <br />3� <br />REV DRAWING <br />1 S-76-0 W <br />