20140957 Ver 2_Tower_Sheet_ACP_ERM_NC_signed_2017.08.04_20170920

PRELIMINARYApproxɸFencing: 8' anti-climb, anti-cut fence with 1' of outward facing barbwire andfence sensing technology providing delay, deterrence and detection againstintrusionEROSION & SEDIMENT CONTROL PLANCOMMUNICATION TOWER (TYPICAL)ATLANTIC COAST PIPELINE PROJECTSITE PLAN1" = 10'WHEN PRINTED FULL SIZE11GENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.SEALAPP. FOR CONST.:SCALE:APP. FOR BID:CHECKED:DRAWN:DIR/FILE:DISTRICT:TITLE:COUNTY:DWG. NO.GROUPREV.STATE:925 White Oaks Blvd. Bridgeport, West Virginia 26330 / 681-842-8000Atlantic Coast Pipeline, LLC15720 Brixham Hill Ave, Suite 120License #F-1223ERM NC, INC.ERMCharlotte, NC 28277 [phone]AS NOTED--05/18/17WTS0--ACP\COMMUNICATION TOWER--COMMUNICATION TOWER ESC PLAN - TYPICALATLANTIC COAST PIPELINE---ISSUED FOR REVIEWWTS03/07/170EROSION & SEDIMENT CONTROL PLAN NARRATIVETHE FOLLOWING EROSION AND SEDIMENT CONTROL PLAN SHALL PROVIDE A TYPICALSTANDARD FOR BEST MANAGEMENT PRACTICES FOR THE ATLANTIC COAST PIPELINECOMMUNICATION TOWER SITES. THE COMMUNICATION TOWER SITE LAYOUT MAY NOT HAVEALL EQUIPMENT AND COMPONENTS DEPICTED, BUT THE SITE FOOTPRINT SHALL BECONSISTENT. COLLECTIVELY, THERE ARE 3 SITES IN WEST VIRGINIA, 19 SITES IN VIRGINIA, AND10 SITES IN NORTH CAROLINA. THE EROSION AND SEDIMENT (E&S) CONTROL MEASURES FORTHE COMMUNICATION TOWER CONSTRUCTION ACTIVITIES PRIMARILY CONSIST OF BUT ARENOT LIMITED TO ROCK CONSTRUCTION ENTRANCE, COMPOST FILTER SOCK, SILT FENCE, ANDTEMPORARY AND PERMANENT SEEDING AND MULCHING. BEST MANAGEMENT PRACTICES(BMP) SPECIFICATIONS FOR THE E&S CONTROL PLAN (E&SCP) ARE TO BE UTILIZED BY THECONSTRUCTION CONTRACTOR ACCORDING TO THE PROVIDED PLAN.GENERAL CONSTRUCTION NOTES:1.DISCHARGES ORIGINATING FROM OFF-SITE SOURCES, WHICH FLOW THROUGH OR ACROSSTHE AREAS DISTURBED BY CONSTRUCTION, MAY BE DIVERTED AROUND THE ACTIVECONSTRUCTION AREA WHENEVER POSSIBLE.2.PERFORM PERMANENT OR TEMPORARY SOIL STABILIZATION WITHIN 7 DAYS WHEN SITE ISAT FINAL GRADE AND ON SITES THAT ARE NOT AT FINAL GRADE, BUT WILL REMAINDORMANT FOR MORE THAN 14 DAYS.3.DUE TO VARYING SITE CONDITIONS, ADDITIONAL SEDIMENT CONTROL BMPS MAY BENECESSARY BEYOND THE MEASURES SHOWN ON THE E&S CONTROL PLAN.4.AT MINIMUM, ALL BMPS ARE TO BE INSPECTED ONCE EVERY SEVEN CALENDAR DAYS ANDWITHIN 24 HOURS AFTER ANY STORM EVENT GREATER THAN 0.5-INCH PER 24-HOURPERIOD DURING THE ENTIRE PROJECT. ALL REQUIRED PERMITS MUST BE OBTAINED PRIORTO STARTING WORK.5.DURING CONSTRUCTION, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONSTRUCTION,STABILIZATION AND MAINTENANCE OF ALL EXISTING AND PROPOSED SITE EROSION &SEDIMENTATION CONTROL DEVICES AND FACILITIES.6.AS SITE SPECIFIC CONDITIONS MAY WARRANT, THE E&SC PLAN MAY REQUIRE MINORMODIFICATIONS TO ENSURE PROPER PROTECTION OF RECEIVING WATERS. THERESPECTIVE PROJECT ENVIRONMENTAL INSPECTOR (EI) WILL IDENTIFY SITE SPECIFICAREAS WHERE A CERTAIN BMP MODIFICATION(S) IS NECESSARY TO EITHER OMIT ORENHANCE BMPS IN SUCH AREAS. THIS PROCESS ENTAILS THE EI TO IDENTIFY LOCATIONSWHERE BMPS WILL NEED TO BE ALTERED, SUBSTITUTED OR OMITTED AND CONTACT THEDOMINION COMPLIANCE SPECIALIST TO REVIEW PROPOSED CHANGES. UPON REVIEWAND APPROVAL BY THE DOMINION COMPLIANCE SPECIALIST, THE EI WILL REDLINE, DATE,AND SIGN THE E&SCP DRAWING(S) DEPICTING THE REDLINE CHANGE(S). ONCE THISPROCESS IS COMPLETED, THE EI WILL NOTIFY THE DEP OF SUCH MINOR MODIFICATIONREDLINE AMENDMENTS AS REQUIRED BY THE GENERAL PERMIT.BMP INSTALLATION AND REMOVAL SEQUENCETHE STAGING OF EARTHMOVING ACTIVITIES FOR THIS PROJECT IS A GENERAL DESCRIPTION OFTHE WORK REQUIRED. ALL WORK SHALL BE COMPLETED IN ACCORDANCE WITH COMPANYSTANDARDS, THE STATE DEPARTMENT OF ENVIRONMENTAL QUALITY REGULATIONS AND ALLOTHER APPLICABLE FEDERAL, STATE OR LOCAL REQUIREMENTS.THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN INCLUDING THE SOIL EROSIONCONTROL DRAWINGS AND NARRATIVE SHALL BE AVAILABLE ON SITE AT ALL TIMES DURINGEARTH DISTURBANCE.1.STAKE/FLAG ALL LIMITS OF DISTURBANCE FOR CONSTRUCTION ACTIVITIES, CLEARLYIDENTIFYING WETLAND AND STREAM EDGES. INSTALL SIGNS TO DESIGNATE THE AREA TOIDENTIFY IMPORTANT PROJECT ATTRIBUTES SUCH AS WETLAND/STREAM BOUNDS,EXCLUSION AREAS ETC.2.INSTALL ROCK CONSTRUCTION ENTRANCES IMMEDIATELY BEFORE INITIAL DISTURBANCES.THE ROCK CONSTRUCTION ENTRANCES TO BE UNDERLAIN BY FILTER FABRIC. ALLCONSTRUCTION TRAFFIC SHOULD USE ONLY ROCK CONSTRUCTION ENTRANCE FORINGRESS AND EGRESS. ALL MUD OR SEDIMENT TRACKED ONTO THE EXISTING ROADWAYSHALL BE REMOVED BY THE CONTRACTOR AS NECESSARY.3.INSTALL SILT FENCE AND COMPOST FILTER SOCKS AS NECESSARY ALONG THE ACCESSROADS TO PREVENT SEDIMENT LADEN RUNOFF FROM ENTERING DOWNSTREAM WATERBODIES. MAINTAIN THE ACCESS ROADS AS REQUIRED, ASSOCIATED DITCHES, ANDNECESSARY OUTLET PROTECTION.4.PRIOR TO AND SIMULTANEOUS WITH GRADING AND EXCAVATION, INSTALL REMAININGEROSION CONTROL DEVICES (ECD) SHOWN ON THE PLANS.5.COMMENCE GRADING AND ASSOCIATED CUT AND FILL SLOPES. THE EARTH MOVINGACTIVITY SHALL BEGIN IN AREA OF CUT SO THAT THE CUTS CAN BE PLACED IN AREAS OFFILL.6.FINALIZE UTILITY INSTALLATION AND PLACE TOPSOIL ON THE CUT AND FILL AREAS.STABILIZE CUT AND FILL SLOPES, AFTER PLACEMENT OF STOCKPILED TOPSOIL ONEXCAVATED SLOPES, AND AS DIRECTED.7.RE-DISTRIBUTION OF WET SEDIMENT FROM DEVICES AND FACILITIES SHALL ONLY BEPERMITTED UPHILL OF AN EFFECTIVE SEDIMENT CONTROL DEVICE OR FACILITY.SEDIMENT LADEN RUNOFF SHALL NOT BE ALLOWED TO FLOW DIRECTLY INTO WATERBODIES.8.ANY EXPOSED TOPSOIL PILES SHOULD BE STABILIZED & SEEDED PER THE PERMITREGULATIONS, AND BY TABLES SHOWN ON THE APPROVED EROSION CONTROL PLANSAND MULCHED WITH STRAW AS SPECIFIED BY THE PROJECT OWNER.9.UPON MINIMUM 70% VEGETATIVE STABILIZATION, REMOVE TEMPORARY SEDIMENTCONTROLS. REMOVE ACCUMULATED SEDIMENTS WITHIN THE TRAPS, RE-GRADE TRAPSTO FINAL CONTOURS. STABILIZE SITE PER THE PLANS.TOWER SITES - SEQUENCE OF CONSTRUCTION1.LIMITS OF CONSTRUCTION MUST BE FIELD MARKED PRIOR TO CLEARING, INSTALLATIONOF SEDIMENT CONTROL MEASURES, CONSTRUCTION, OR OTHER LAND DISTURBINGACTIVITIES.2.DETAILED SEQUENCE OF CONSTRUCTION:a.INSTALL STABILIZED CONSTRUCTION ENTRANCE.b.CLEAR AND GRADE FOR INSTALLATION OF ECDS.c.INSTALL SEDIMENT CONTROL DEVICES.d.PREPARE TEMPORARY PARKING AND STORAGE AREA(S).e.CLEAR AND GRUB THE SITE, AS REQUIRED.f.START CONSTRUCTION OF THE SITE IMPROVEMENTS.g.BEGIN GRADING THE SITE.h.INSTALL UTILITIES.i.PERFORM FINAL GRADING AND INSTALL PERMANENT SEEDING AND PLANTING.j.REMOVE ALL TEMPORARY EROSION AND SEDIMENT CONTROL DEVICES (ONLY IF SITEIS STABILIZED).MAINTENANCE SCHEDULEAFTER FULL REVEGETATION HAS BEEN ACHIEVED, ALL BMPS WILL BE REMOVED AND ANYLAND DISTURBED BY REMOVAL WILL BE PERMANENTLY STABILIZED. UNLESS OTHERWISESPECIFIED, ALL MAINTENANCE MUST BE COMPLETED IMMEDIATELY AFTER AN INSPECTIONIDENTIFIES THAT A BMP IS NOT FUNCTIONING AS REQUIRED.·SEDIMENT MUST BE REMOVED WHERE ACCUMULATION REACHES ONE-HALF THE ABOVEGROUND HEIGHT OF THE CONTROL MEASURE.·EROSION CONTROL MEASURES, WHICH HAVE BEEN UNDERMINED OR TOPPED, MUSTIMMEDIATELY BE REPAIRED.·OTHER REQUIRED REPAIRS OR MAINTENANCE SHALL BE MADE IMMEDIATELY.·TEMPORARY AND PERMANENT E&S CONTROL BMPS SHALL BE MAINTAINED AND REPAIREDAS NEEDED TO ASSURE CONTINUED PERFORMANCE OF THEIR INTENDED FUNCTION.SEEDING AND MULCHINGSEE SEED MIXES SPECIFIED IN THE ACP PROJECT RESTORATION PLAN.SEEDBED PREPARATION: AREAS TO BE SEEDED SHALL BE DISKED TO A DEPTH OF 4-IN TO 6-INWHENEVER FEASIBLE, AND SMOOTHLY GRADED.3.IN TOPSOILED AREAS, SOIL TO BE REDISTRIBUTED EVENLY AND STABILIZED PRIOR TOSEEDING.4.STABILIZATION MEASURES SHALL BE INITIATED AS SOON AS PRACTICABLE IN PORTIONS OFTHE SITE WHERE CONSTRUCTION ACTIVITIES HAVE TEMPORARILY OR PERMANENTLYCEASED, BUT IN NO CASE MORE THAN 21 DAYS AFTER THE CONSTRUCTION ACTIVITY INTHAT PORTION OF THE SITE HAS PERMANENTLY CEASED.5.WHERE THE INITIATION OF STABILIZATION MEASURES WITHIN 7 DAYS AFTERCONSTRUCTION ACTIVITY TEMPORARILY OR PERMANENTLY CEASES IS PRECLUDED BYSNOW COVER, STABILIZATION MEASURES SHALL BE INITIATED AS SOON AS CONDITIONSALLOW.6.AREAS WHERE THE SEED HAS FAILED TO GERMINATE ADEQUATELY (UNIFORM PERENNIALVEGETATIVE COVER WITH A DENSITY OF 70%) WITHIN 30 DAYS, SEEDING AND MULCHINGMUST BE RE-SEEDED IMMEDIATELY, OR AS SOON AS WEATHER CONDITIONS ALLOW.