NC ACP - PCSW RFAI#2 documents

Attachment #1
Access Road Figures

Service Layer Credits: Sources: Esri, HERE,DeLorme, Intermap, increment P Corp.,GEBCO, USGS, FAO, NPS, NRCAN,GeoBase, IGN, Kadaster NL, OrdnanceSurvey, Esri Japan, METI, Esri China (HongKong), s wisstopo, MapmyIndia, ©OpenStreetMap contributors, and the GISUser C ommunitySources: Esri, HERE, DeLorme, USGS,Intermap, IN CREMENT P, NRCan, EsriJapan, METI, Esri China (Hong Kong), EsriKorea, Esri (Thailand), MapmyIndia, NGCC, ©OpenStreetMap contributors, and the GISUser C ommunitySource: Esri, DigitalGlobe, GeoEye, EarthstarGeographics, CNES/Airbus DS, USDA,USGS, AeroGRID, IGN, and the GIS User
64.3
64.2
Simms025488
002215
019904
027560
027549
027560-999
This information is for environmental review purposes only.
0 50 100
Feet1:1,200
Atl an tic Coa st PipelineValve Site 27Raleigh, North CarolinaPage 1 of 4
Milepost
Pipeline Centerline
Ac cess Road Centerline
Ac cess Road LOD (30 feet)
Ac cess Road G ravel Surface
Valve Site
M:\C lients\D -F \DO M\S RP P\_ArcGIS\2018\01 \10_AR _Figures_for _Tiffini\AR_figures_Raleigh.mxd | REVISED: 01/11/2018 | SCALE: 1:1,200 when printed at 11x17 DRAWN B Y: JML
Valve Site 271. Valve Site is located on parcel 027560.2. Size of valve site is approximately 50ft x 50ft.3. Valve site will be constructed during pipeline installation. Total disturbedarea is wit hin the pipeline RO W. ROW will be restored to existingconditions.4. Built-upon area will be 0.06 acres . Net increase in BUA is 0.06 acres.
Service Layer Credits: Sources: Esri, HERE,DeLorme, Intermap, increment P Corp.,GEBCO, USGS, FAO, NPS, NRCAN,GeoBase, IGN, Kadaster NL, OrdnanceSurvey, Esri Japan, METI, Esri China (HongKong), s wisstopo, MapmyIndia, ©OpenStreetMap contributors, and the GISUser C ommunitySources: Esri, HERE, DeLorme, USGS,Intermap, IN CREMENT P, NRCan, EsriJapan, METI, Esri China (Hong Kong), EsriKorea, Esri (Thailand), MapmyIndia, NGCC, ©OpenStreetMap contributors, and the GISUser C ommunitySource: Esri, DigitalGlobe, GeoEye, EarthstarGeographics, CNES/Airbus DS, USDA,USGS, AeroGRID, IGN, and the GIS UserRed OakWollett Mill
025124
024112
025119
048727
037973
037974
This information is for environmental review purposes only.
0 50 100
Feet1:1,200
Atl an tic Coa st PipelineAccess Road 18-047-AR 1Raleigh, North CarolinaPage 2 of 4
Milepost
Pipeline Centerline
Ac cess Road Centerline
Ac cess Road LOD (30 feet)
Ac cess Road G ravel Surface
Valve Site
M:\C lients\D -F \DO M\S RP P\_ArcGIS\2018\01 \10_AR _Figures_for _Tiffini\AR_figures_Raleigh.mxd | REVISED: 01/11/2018 | SCALE: 1:1,200 when printed at 11x17 DRAWN B Y: JML
Access Road 18-047-AR 11. Access road is located on parcels 037973, 037974, 048727, 025126.2. Length of road is approximately 0.43 miles long.3. Total disturbed area within the 30 foot ROW is 1.55 acres.4. Existing road is approximately 8 f eet wide and will be widened to 16 feet.5. Built-upon area will be 0.83 acres. N et increase in BUA is 0.42 acres.
Service Layer Credits: Sources: Esri, HERE,DeLorme, Intermap, increment P Corp.,GEBCO, USGS, FAO, NPS, NRCAN,GeoBase, IGN, Kadaster NL, OrdnanceSurvey, Esri Japan, METI, Esri China (HongKong), s wisstopo, MapmyIndia, ©OpenStreetMap contributors, and the GISUser C ommunitySources: Esri, HERE, DeLorme, USGS,Intermap, IN CREMENT P, NRCan, EsriJapan, METI, Esri China (Hong Kong), EsriKorea, Esri (Thailand), MapmyIndia, NGCC, ©OpenStreetMap contributors, and the GISUser C ommunitySource: Esri, DigitalGlobe, GeoEye, EarthstarGeographics, CNES/Airbus DS, USDA,USGS, AeroGRID, IGN, and the GIS User
41.6
41.5
025124024112
025126
102620
025119
048727
037974
This information is for environmental review purposes only.
0 50 100
Feet1:1,200
Atl an tic Coa st PipelineAccess Road 18-047-AR 1Raleigh, North CarolinaPage 3 of 4
Milepost
Pipeline Centerline
Ac cess Road Centerline
Ac cess Road LOD (30 feet)
Ac cess Road G ravel Surface
Valve Site
M:\C lients\D -F \DO M\S RP P\_ArcGIS\2018\01 \10_AR _Figures_for _Tiffini\AR_figures_Raleigh.mxd | REVISED: 01/11/2018 | SCALE: 1:1,200 when printed at 11x17 DRAWN B Y: JML
Access Road 18-047-AR 11. Access road is located on parcels 037973, 037974, 048727, 025126.2. Length of road is approximately 0.43 miles long.3. Total disturbed area within the 30 foot ROW is 1.55 acres.4. Existing road is approximately 8 f eet wide and will be widened to 16 feet.5. Built-upon area will be 0.83 acres. N et increase in BUA is 0.42 acres.
Service Layer Credits: Sources: Esri, HERE,DeLorme, Intermap, increment P Corp.,GEBCO, USGS, FAO, NPS, NRCAN,GeoBase, IGN, Kadaster NL, OrdnanceSurvey, Esri Japan, METI, Esri China (HongKong), s wisstopo, MapmyIndia, ©OpenStreetMap contributors, and the GISUser C ommunitySources: Esri, HERE, DeLorme, USGS,Intermap, IN CREMENT P, NRCan, EsriJapan, METI, Esri China (Hong Kong), EsriKorea, Esri (Thailand), MapmyIndia, NGCC, ©OpenStreetMap contributors, and the GISUser C ommunitySource: Esri, DigitalGlobe, GeoEye, EarthstarGeographics, CNES/Airbus DS, USDA,USGS, AeroGRID, IGN, and the GIS User
64.3
64.2
SheldonSimms025488
002215
019904
027560
027549 027560-999
This information is for environmental review purposes only.
0 50 100
Feet1:1,200
Atl an tic Coa st PipelineAccess Road 18-235-AR 1Raleigh, North CarolinaPage 4 of 4
Milepost
Pipeline Centerline
Ac cess Road Centerline
Ac cess Road LOD (30 feet)
Ac cess Road G ravel Surface
Valve Site
M:\C lients\D -F \DO M\S RP P\_ArcGIS\2018\01 \10_AR _Figures_for _Tiffini\AR_figures_Raleigh.mxd | REVISED: 01/11/2018 | SCALE: 1:1,200 when printed at 11x17 DRAWN B Y: JML
Access Road 18-235-AR 11. Access road is located on parcesl 027560, 025488.2. Length of road is approximately 0.18 miles long.3. Total disturbed area within the 30 foot ROW is 0.65 acres.4. Existing road is approximately 8 f eet wide and will be widened to 16 feet.5. Built-upon area will be 0.35 acres. N et increase in BUA is 0.18 acres.

Attachment #2
Valve Site #27

Attachment #3
NC Detail Sheets

6" SILT-SAVERPRIORITY 2 FABRIC26"22"24"6' MAX O.C.Black BandTRENCHFRONT ELEVATION4' LONG WOOD POST (OAK)SPACED AT 6'-0"26"22"24"8"4"10' TO TOEOF SLOPEFABRIC TO BE 24" ABOVE GROUNDWITH "J" IN TRENCHFLOW4" x 8"TrenchSIDE VIEWTOE IN AND COMPACT BACKFILL4 STAPLES(1" x 134")BONDING STRIP(1" x 38" x 24")POST (OAK)(1 18" x 1 18" x 48")(OR EQUAL DENSITY)GROUND LINEBOTTOM OFTRENCH LINEREPAIR DETAILATTACHING TWO SILT FENCESWHEN TRENCHING IS USEDPLAN VIEW1-1011-1021-1031-1041-1051-1061-107GENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.--ISSUED FOR PERMITTINGJR03/09./20170APP. 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, LLCAS SHOWN1/19/2018SR1/9/2018CM61 OF 10ACP\North Carolina\DetailsEROSION AND SEDIMENT CONTROL DETAILSATLANTIC COAST PIPELINENCSEAL--ISSUED IN RESPONSE to NCDEQ COMMENTSEB08/01/171--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017CM09/21/172--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM SEPTEMBER 21, 2017)CM10/06/20173--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 06, 2017)CM10/20/20174--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON NOVEMBER 6, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 20, 2017)CM12/15/201758"4" x 8"Trench24"26"22"1-106--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON JANUARY 4, 2018 (SUPERCEEDS REVISIONS FROM DECEMBER 15, 2017)CM1/19/20186
”“”2-1012-1022-1032-1042-1052-1063 INCHESGENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.--ISSUED FOR PERMITTINGJR03/09./20170APP. 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, LLCAS SHOWN1/19/2018SR1/9/2018CM62 OF 10ACP\North Carolina\DetailsEROSION AND SEDIMENT CONTROL DETAILSATLANTIC COAST PIPELINENCSEAL--ISSUED IN RESPONSE to NCDEQ COMMENTSEB08/01/171--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017CM09/21/172--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM SEPTEMBER 21, 2017)CM10/06/20173--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 06, 2017)CM10/20/20174--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON NOVEMBER 6, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 20, 2017)CM12/15/20175--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON JANUARY 4, 2018 (SUPERCEEDS REVISIONS FROM DECEMBER 15, 2017)CM1/19/20186
-1033-1023-1013-10450' PERMANENT EASEMENT50' TEMPORARY EASEMENT10'TEMPORARYEASEMENT2-103GENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.--ISSUED FOR PERMITTINGJR03/09./20170APP. 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, LLCAS SHOWN1/19/2018SR1/9/2018CM63 OF 10ACP\North Carolina\DetailsEROSION AND SEDIMENT CONTROL DETAILSATLANTIC COAST PIPELINENCSEAL--ISSUED IN RESPONSE to NCDEQ COMMENTSEB08/01/171--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017CM09/21/172--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM SEPTEMBER 21, 2017)CM10/06/20173--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 06, 2017)CM10/20/20174--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON NOVEMBER 6, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 20, 2017)CM12/15/20175--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON JANUARY 4, 2018 (SUPERCEEDS REVISIONS FROM DECEMBER 15, 2017)CM1/19/20186
AINTENANCE NOTES:1.THE DEVELOPER/OWNER SHALL BE RESPONSIBLE FOR MAINTENANCE OF THE FILTER CURTAINFOR THE DURATION OF THE PROJECT IN ORDER TO ENSURE THE CONTINUOUS PROTECTION OFTHE WATERCOURSE.2.SHOULD REPAIRS TO THE GEOTEXTILE FABRIC BECOME NECESSARY, THERE ARE NORMALLYREPAIR KITS AVAILABLE FROM THE MANUFACTURERS; MANUFACTURER'S INSTRUCTIONS MUSTBE FOLLOWED TO ENSURE THE ADEQUACY OF THE REPAIR.3.WHEN THE CURTAIN IS NO LONGER REQUIRED AS DETERMINED BY THE INSPECTOR, THECURTAIN AND RELATED COMPONENTS SHALL BE REMOVED IN SUCH A MANNER TO MINIMIZETURBIDITY. REMAINING SEDIMENT SHALL BE SUFFICIENTLY SETTLED BEFORE REMOVING THECURTIAN. SEDIMENT MAY BE REMOVED AND THE ORIGINAL DEPTH (OR PLAN ELEVATION)RESTORED. AND SPOILS MUST BE TAKEN TO UPLAND AREA AND BE STABILIZED.CONSTRUCTION SPECIFICATIONS1.BARRIERS SHOULD BE A BRIGHT COLOR (YELLOW OR 'INTERNATIONAL" ORANGE ARERECOMMENDED) THAT WILL ATTRACT THE ATTENTION OF NEARBY BOATERS.2.THE CURTAIN FABRIC MUST MEET THE MINIMUM REQUIREMENTS NOTED IN THE TABLE BELOW.3.SEAMS IN THE FABRIC SHALL BE EITHER VULCANIZED WELDED OR SEWN, AND SHALL DEVELOPTHE FULL STRENGTH OF THE FABRIC.4.FLOATATION DEVICES SHALL BE FLEXIBLE, BUOYANT UNITS CONTAINED IN AN INDIVIDUALFLOATATION SLEEVE OR COLLAR ATTACHED TO THE CURTAIN. BUOYANCY PROVIDED BY THEFLOATATION UNITS SHALL BE SUFFICIENT TO SUPPORT THE WEIGHT OF THE CURTAIN ANDMAINTAIN A FREEBOARD OF AT LEAST 3 INCHES ABOVE THE WATER SURFACE LEVEL.4-1034-101NOTES:1.CONTRACTOR RESPONSIBLE FOR FIELD VERIFYING FLOW CONDITIONS TO DETERMINE WHICHTYPE OF TURBIDITY CURTAIN IS TO BE INSTALLED AT EACH SPECIFIED LOCATION.2.FLOW CRITERIA:TYPE 1: NO CURRENTTYPE 2: 0-3.5 FT/S TYPE 3: 3.5-5 FT/SGENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.--ISSUED FOR PERMITTINGJR03/09./20170APP. 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, LLCAS SHOWN1/19/2018SR1/9/2018CM64 OF 10ACP\North Carolina\DetailsEROSION AND SEDIMENT CONTROL DETAILSATLANTIC COAST PIPELINENCSEAL--ISSUED IN RESPONSE to NCDEQ COMMENTSEB08/01/171--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017CM09/21/172--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM SEPTEMBER 21, 2017)CM10/06/20173--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 06, 2017)CM10/20/20174--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON NOVEMBER 6, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 20, 2017)CM12/15/20175--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON JANUARY 4, 2018 (SUPERCEEDS REVISIONS FROM DECEMBER 15, 2017)CM1/19/20186MAINTENANCE NOTES:1.INSPECT ON A REGULAR BASIS AND AFTER SIGNIFICANT RAINFALL.2.REPAIR AND REPLACE DAMAGED MATERIAL AS SOON AS POSSIBLE.4-102BSRF (AROUND WORKSPACE ASSHOWN ON PLANS)BSRF (AROUND WORKSPACEAS SHOWN ON PLANS)BOLTED STEEL PANELSNOTES:1.APPROXIMATE 190' DIA. x 15' HIGH BOLTED STEEL STRUCTURE,POLY LINED FOR WATER STORATE. MANUFACTURER TO BEMODUTANK OR APPROVED EQUAL.MAINTENANCE NOTES:1.INSPECT ESC MEASURES ON A REGULAR BASIS.2.REPAIR AND REPLACE DAMAGED MATERIAL AS SOON AS POSSIBLE.
AINTENANCE NOTES:1.INSPECT CHECK DAMS AND CHANNELS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (0.5INCH OR GREATER) RAINFALL EVENT AND REPAIR IMMEDIATELY. CLEAN OUT SEDIMENT, STRAW,LIMBS, OR OTHER DEBRIS THAT COULD CLOG THE CHANNEL WHEN NEEDED.2.ANTICIPATE SUBMERGENCE AND DEPOSITION ABOVE THE CHECK DAM AND EROSION FROMHIGH FLOWS AROUND THE EDGES OF THE DAM. CORRECT ALL DAMAGE IMMDIATELY. IFSIGNIFICANT EROSION OCCURS BETWEEN DAMS, ADDITIONAL MEASURES CAN BE TAKEN, SUCHAS INSTALLING A PROTECTIVE RIPRAP LINER IN THAT PORTION OF THE CHANNEL.3.REMOVE SEDIMENT ACCUMULATED BEHIND THE DAMS AS NEEDED TO PREVENT DAMAGE TOCHANNEL VEGETATION, ALLOW THE CHANNEL TO DRAIN THROUGH THE STONE CHECK DAM,AND PREVENT LARGE FLOWS FROM CARRYING SEDIMENT OVER THE DAM. ADD STONE TO DAMSAS NEEDED TO MAINTAIN DESIGN HEIGHT AND CROSS SECTION.CONSTRUCTION SPECIFICATIONS1.PLACE STONE TO THE LINES AND DIMENSIONS SHOWN IN THE PLAN ON A FILTER FABRICFOUNDATION2.KEEP THE CENTER STONE SECTION AT LEAST 9 INCHES BELOW NATURAL GROUND LEVEL WHERETHE DAM ABUTS THE CHANNEL BANKS.3.EXTEND STONE AT LEAST 1.5 FEET BEYOND THE DITCH BANK TO KEEP WATER FROM CUTTINGAROUND THE ENDS OF THE CHECK DAM.4.SET SPACING BETWEEN THE DAMS TO ASSURE THAT THE ELEVATION AT THE TOP OF THE LOWERDAM IS THE SAME AS THE TOE ELEVATION OF THE UPPER DAM.5.PROTECT THE CHANNEL AFTER THE LOWEST CHECK DAM FROM HEAVY FLOW THAT COULDCAUSE EROSION.6.MAKE SURE THAT THE CHANNEL REACH ABOVE THE MOST UPSTREAM DAM IS STABLE.7.ENSURE THAT OTHER AREAS OF THE CHANNEL, SUCH AS CULVERT ENTRANCES BELOW THECHECK DAMS, ARE NOT SUBJECT TO DAMAGE OR BLOCKAGE FROM THE DISPLACED STONES.5-101NOTES:1.WATER PUMPED OUT OF TRENCH SHALL NOT BE DISCHARGED INTO WATERWAYS. WATER SHALLBE DISCHARGED INTO A FILTER BAG OR DEWATERING STRUCTURE.2.PUMP SHALL BE CONTROLLED SO THAT DISCHARGE DOES NOT OVERFLOW DEWATERINGSTRUCTURE.3.PUMP SUCTION HOSE MUST NOT BE ALLOWED TO COME IN CONTACT WITH TRENCH BOTTOM.PROVISIONS MUST BE MADE TO ELEVATE THE SUCTION HOSE TO AT LEAST ONE FOOT ABOVETHE BOTTOM OF THE PIPE TRENCH UNTIL BOTTOM DEWATERING IS NECESSARY.4.DEWATERING SHALL NOT OCCUR DURING TIMES OF HEAVY RAINFALL EXCEPT AS REQUIRED TOPREVENT FLOODING OF CONSTRUCTION EQUIPMENT LOCATED IN BORE PITS AND TRENCHES.5.PUMPS UTILIZED DURING DEWATERING SHALL BE PLACED WITHIN SECONDARY CONTAINMENT IFPOSITIONED WITHIN 100 FEET OF A WETLAND OR WATERBODY.5-102MAINTENANCE NOTES:1.INSPECT TRENCH DEWATERING EQUIPMENT REGULARLY DURING OPERATION.2.REPAIR OR REPLACE DAMAGED EQUIPMENT AS SOON AS POSSIBLE.5-103NOTES:1.CARRIER PIPE IS TO BE COATED WITH APPROVED EXTERNAL PROTECTIVE COATING.2.PIPELINE MAKER TO BE INSTALLED.3.CROSSING SHALL BE INSTALLED BY OPEN CUTTING4.CROSSING TO BE AS NEAR TO 90° TO THE CENTERLINE OF ROADWAY AS PRACTICAL.48" MIN.36" MIN.MAINTENANCE NOTES:1.MAINTAIN ESC MEASURES (AS SHOWN ON ALIGNMENT DRAWINGS).2.KEEP ROAD SURFACE CLEAR OF DEBRIS/SEDIMENT.GENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.--ISSUED FOR PERMITTINGJR03/09./20170APP. 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, LLCAS SHOWN1/19/2018SR1/9/2018CM65 OF 10ACP\North Carolina\DetailsEROSION AND SEDIMENT CONTROL DETAILSATLANTIC COAST PIPELINENCSEAL--ISSUED IN RESPONSE to NCDEQ COMMENTSEB08/01/171--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017CM09/21/172--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM SEPTEMBER 21, 2017)CM10/06/20173--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 06, 2017)CM10/20/20174--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON NOVEMBER 6, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 20, 2017)CM12/15/20175--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON JANUARY 4, 2018 (SUPERCEEDS REVISIONS FROM DECEMBER 15, 2017)CM1/19/20186NOTES:1.REFER TO DETAIL SHEET 9 FOR ADDITIONAL INFORMATION ON THEDIRECTIONAL DRILL METHOD.2.EROSION AND SEDIMENT CONTROL MEASURES TO BE INSTALLEDAROUND WORKSPACE AS SHOWN ON PLAN SHEET.5-104MAINTENANCE NOTES:1.INSPECT ON A REGULAR BASIS AND AFTER SIGNIFICANT RAINFALL.2.REPAIR AND REPLACE DAMAGED MATERIAL AS SOON AS POSSIBLE.WORKSPACEBSRFBSRFBSRFBSRF5-105USFWS STREAM CROSSING·ATLANTIC WILL ALERT THE USFWS AND THE APPROPRIATE STATE AGENCIES WHEN WORK BEGINS IN THE ESA SENSITIVE WATERBODIES.·INSTALL EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON THE PLANS. ALL MEASURES TO BE INSTALLED WITHIN THE LIMITS OF DISTURBANCE.·ENGINEERING INSPECTORS (EIS) WILL BE ONSITE DURING CONSTRUCTION ACTIVITIES AND WILL HAVE STOP WORK AUTHORITY. FERC THIRD-PARTY COMPLIANCE MONITORS WILL ALSO BE ONSITE DURING CONSTRUCTION, AND IF COMPLIANCE ISSUES ARE IDENTIFIED, THE MONITORS WILL HAVETHE AUTHORITY TO STOP WORK IN THE AREA UNTIL THE COMPLIANCE ISSUES ARE RESOLVED. ATLANTIC WILL UTILIZE SPECIES EXPERTS TO CONDUCT ALL REQUIRED BIOLOGICAL MONITORING (E.G., SPECIES RELOCATIONS) AND WILL DOCUMENT AND REPORT ON THESE ACTIVITIES AS THEYARE CONDUCTED.·THERE WILL BE AN INCREASED BUFFER BETWEEN REFUELING/OVERNIGHT EQUIPMENT AND VEHICLE PARKING AREAS AT ESA SENSITIVE WATERBODIES (I.E., MINIMUM OF 300-FOOT SEPARATION).·ANY SPILLS WITHIN 100 FEET UPSLOPE OF ESA SENSITIVE WATERBODIES WILL BE REPORTED TO THE APPROPRIATE FWS OFFICE WITHIN 24 HOURS OF IDENTIFICATION FOR INPUT ON SPECIES-SPECIFIC MITIGATION.·ATLANTIC WILL INSTALL TEMPORARY EQUIPMENT CROSSINGS TO REDUCE THE POTENTIAL FOR INCREASED EROSION AND SEDIMENTATION RESULTING FROM CONSTRUCTION EQUIPMENT AND VEHICULAR TRAFFIC CROSSING WATERBODIES. THESE TEMPORARY CROSSINGS WILL BE REMOVEDFOLLOWING CONSTRUCTION. AT ESA SENSITIVE WATERBODIES EQUIPMENT WILL MOVE AROUND OR PASS OVER INSTALLED BRIDGES TO MINIMIZE IN-STREAM IMPACTS.·ANY LOSS OF CIRCULATION OR INADVERTENT RETURNS AT HDDS OCCURRING AT ESA SENSITIVE WATERBODIES WILL BE REPORTED TO THE APPROPRIATE FWS FIELD OFFICE WITHIN 24 HOURS OF IDENTIFICATION FOR INPUT ON SPECIES-SPECIFIC REMEDIATION GUIDANCE.·IF AN ESA SENSITIVE WATERBODY MUST BE ISOLATED FOR INADVERTENT RETURN CLEAN-UP EFFORTS, PUMPS OF SUFFICIENT CAPACITY WILL BE USED TO MAINTAIN FLOWS DOWNSTREAM AT THE SITE. THE APPROPRIATE FWS FIELD OFFICE WILL BE CONSULTED TO DETERMINE IF ANYADDITIONAL REMEDIATION MEASURES ARE APPROPRIATE TO MINIMIZE IMPACTS ON THE CANDY DARTER. IN THE CASE OF AN INADVERTENT RETURN, ADDITIONAL COMMENTS FROM THE APPROPRIATE FWS OFFICE WILL BE OBTAINED BEFORE DRILLING RESUMES.·NO GRUBBING WILL OCCUR WITHIN 50 FEET OF ESA SENSITIVE WATERBODIES BETWEEN NOVEMBER 15 AND APRIL 1. FOR WATERBODIES REQUIRING BRIDGE INSTALLATION DURING THIS TIMEFRAME, GRUBBING OR GRADING WITHIN AN APPROXIMATELY 25-FOOT AREA MAY BE REQUIREDTHROUGH THE RIPARIAN BUFFER TO ACCOMMODATE BRIDGE INSTALLATION; HOWEVER, ADDITIONAL E&SC MEASURES WILL BE INSTALLED TO PROTECT THE ESA SENSITIVE WATERBODY. NO GRUBBING WILL TAKE PLACE WITHIN 50 FEET OF THE WATERBODY BETWEEN NOVEMBER 15 AND APRIL 1AT WATERBODIES THAT ARE NOT CROSSED BY THE TRENCHLINE, BUT WITHIN THE CONSTRUCTION WORKSPACE.·ATLANTIC WILL CONDUCT INSTALLATION AND DAILY INSPECTION AND MAINTENANCE OF THE EROSION CONTROL MEASURES IN ACCORDANCE WITH THE SITE-SPECIFIC CONSTRUCTION ALIGNMENT SHEETS PRIOR TO AND DURING TRENCHING OPERATIONS, STOCKPILING OF SATURATED TRENCHMATERIAL, LOWERING-IN OR FLOATING THE PIPELINE INTO THE TRENCH, AND DURING BACKFILLING OF THE TRENCH TO CONTAIN TRENCH SPOILS AND TURBIDITY WITHIN THE CONFINES OF THE CONSTRUCTION RIGHT-OF-WAY.·CONTRACTOR SHALL MAINTAIN ALL EROSION AND SEDIMENT CONTROL MEASURE AND STRUCTURES TO MINIMIZE EROSION. INSPECT AND REPAIR MEASURES AFTER EACH RAINFALL AND AS NEEDED THROUGHOUT THE PROJECT.·ATLANTIC WILL UTILIZE E&SC BMPS ON ACCESS ROADS IDENTIFIED IN THE FIELD AS HAVING SIGNIFICANT EROSION POTENTIAL WITHIN 0.25 MILE OF ESA SENSITIVE WATERBODIES. IF AN ACCESS ROAD CROSSES A WATERBODY WITH POTENTIALLY SUITABLE HABITAT FOR ESA-LISTED, PROPOSED,OR UNDER REVIEW SPECIES AND THE ACCESS ROAD REQUIRES IN-STREAM ACTIVITIES FOR IMPROVEMENTS, ATLANTIC WILL CONDUCT SURVEYS PRIOR TO ANY PROJECT ACTIVITIES. IF ATLANTIC DOCUMENT ESA-LISTED, PROPOSED, OR UNDER REVIEW SPECIES IN THE WATERBODY, THEY WILLNOT USE THE ACCESS ROAD UNLESS IN-STREAM ACTIVITIES COULD BE AVOIDED SUCH AS THROUGH USE OF AN EXISTING BRIDGE.·ATLANTIC PROPOSES TO COMPLETE WATERBODY CROSSINGS DURING LOW FLOW TIMES OF THE YEAR AND WHEN WEATHER FORECASTS DO NOT PREDICT STORM EVENTS. IN ESA SENSITIVE WATERBODIES, ATLANTIC WILL INSTALL IN-STREAM SILT/TURBIDITY CURTAINS OR SILT FENCING ATNON-HDD WATERBODY CROSSING LOCATIONS ON THE DOWNSTREAM SIDE OF THE WORK AREA AS APPROPRIATE BASED ON CONDITIONS AT TIME OF CROSSING.·TO AVOID OFF HIGHWAY VEHICLE (OHV) ACCESS ALONG THE PIPELINE RIGHTS-OF WAY AND ACCESS ROADS, ATLANTIC HAS COMMITTED TO IMPLEMENTING MEASURES SUCH AS INSTALLATION OF OHV BARRIERS (E.G., SIGNS, FENCES, VEGETATION, OR BOULDERS). BARRIERS WILL BESTRATEGICALLY PLACED TO PRESENT PHYSICAL BARRIERS AND TO ERASE VISUAL CUES SIGNALING THE PRESENCE OF THE RIGHT-OF-WAY FROM THE ACCESS POINT. ATLANTIC WILL COORDINATE WITH THE APPROPRIATE LANDOWNERS AND/OR LAND MANAGING AGENCIES TO IDENTIFYLOCATIONS WHERE UNAUTHORIZED OHV ACCESS IS MOST LIKELY TO OCCUR, AND TO DEVELOP THE APPROPRIATE OHV BLOCKING MEASURES. AT KEY CROSSING LOCATIONS, SUCH AS ESA SENSITIVE WATERBODIES, SITE-SPECIFIC OHV BLOCKING MEASURES WILL BE DEVELOPED INCONSULTATION WITH THE LAND-MANAGING AGENCIES AND ADJACENT PRIVATE LANDOWNERS, AS APPROPRIATE.·ATLANTIC PROPOSES TO USE MUNICIPAL WATER SOURCES FOR ALL WATER WITHDRAWALS PREVIOUSLY PLANNED AT ESA SENSITIVE WATERBODIES EXCEPT FOR TAR RIVER AND CONTENTNEA CREEK ON ACP. WATER USED FOR DUST CONTROL WILL ALSO BE APPROPRIATED FROM MUNICIPALSOURCES. TO MINIMIZE POTENTIAL IMPACTS OF WATER WITHDRAWALS ON THE SENSITIVE SPECIES, ATLANTIC WILL IMPLEMENT THE FOLLOWING MEASURES AT ESA SENSITIVE WATERBODIES:·USE 1 MM OR SMALLER SCREENS TO MINIMIZE IMPINGEMENT/ENTRAINMENT OF MUSSEL HOST FISH SPECIES AND ESA-LISTED, PROPOSED AND UNDER REVIEW SPECIES;·LIMIT WATER WITHDRAWAL TO NOT EXCEED 25 PERCENT OF INSTANTANEOUS FLOW;·ENSURE THAT INTAKE VELOCITY DOES NOT EXCEED 0.25 F/S;·USE FLOATING INTAKE STRUCTURES TO AVOID IMPACTS ON THE STREAM BED; AND·IMPLEMENT APPLICABLE TOYRS.·FOR WATER DISCHARGE:OATLANTIC WILL NOT DISCHARGE INTO ESA SENSITIVE WATERBODIES; AND·ATLANTIC WILL DISCHARGE IN UPLAND AREAS A MINIMUM OF 300 FEET FROM ESA SENSITIVE WATERBODIES·CONTRACTOR TO REMOVE EROSION AND SEDIMENT CONTROL MEASURES AT THE CONCLUSION OF THIS CONTRACT UPON APPROVAL BY NCDEQ-DEMLR.
IPE OUTLET TO FLAT AREA - NO WELL DEFINED CHANNELPIPE OUTLET TO WELL DEFINED CHANNELMAINTENANCE1.INSPECT RIPRAP OUTLET STRUCTURES WEEKLY AND AFTER SIGNIFICANT (0.5INCH OR GREATER) RAINFALL EVENTS TO SEE IF ANY EROSION AROUND ORBELOW THE RIPRAP HAS TAKEN PLACE, OR IF STONES HAVE BEEN DISLODGED.IMMEDIATELY MAKE ALL NEEDED REPAIRS TO PREVENT FURTHER DAMAGE.CONSTRUCTION SPECIFICATIONS1.ENSURE THAT THE SUBGRADE FOR THE FILTER AND RIPRAP FOLLOWS THEREQUIRED LINES AND GRADES SHOWN IN THE PLAN. COMPACT ANY FILLREQUIRED IN THE SUBGRADE TO THE DENSITY OF THE SURROUNDINGUNDISTURBED MATERIAL. LOW AREAS IN THE SUBGRADE ON UNDISTURBEDSOIL MAY ALSO BE FILLED BY INCREASING THE RIPRAP THICKNESS.2.THE RIPRAP AND GRAVEL FILTER MUST CONFORM TO THE SPECIFIED GRADINGLIMITS SHOWN ON THE PLANS.3.FILTER FABRIC (MIRAFI 500X OR APPROVED EQUAL), WHEN USED, MUST MEETDESIGN REQUIREMENTS AND BE PROPERLY PROTECTED FROM PUNCHING ORTEARING DURING INSTALLATION. REPAIR ANY DAMAGE BY REMOVING THERIPRAP AND PLACING ANOTHER PIECE OF FILTER CLOTH OVER THE DAMAGEDAREA. ALL CONNECTING JOINTS SHOULD OVERLAP SO THE TOP LAYER IS ABOVETHE DOWNSTREAM LAYER A MINIMUM OF 1 FOOT. IF THE DAMAGE IS EXTENSIVE,REPLACE THE ENTIRE FILTER CLOTH.4.RIPRAP MAY BE PLACED BY EQUIPMENT, BUT TAKE CARE TO AVOID DAMAGINGTHE FILTER.5.THE MINIMUM THICKNESS OF THE RIPRAP SHOULD BE 1.5 TIMES THE MAX.STONE DIAMETER.6.RIPRAP MAY BE FILED STONE OR ROUGH QUARRY STONE. IT SHOULD BE HARD,ANGULAR, HIGHLY WEATHER-RESISTANT AND WELL GRADED.7.CONSTRUCT THE APRON ON ZERO GRAD WITH NO OVERFILL AT THE END. MAKETHE TOP OF THE RIPRAP AT THE DOWNSTREAM END LEVEL WITH THERECEIVING AREA OR SLIGHTLY BELOW IT.8.ENSURE THAT THE APRON IS PROPERLY ALIGNED WITH THE RECIEVING STREAMAND PREFERABLY STRAIGHT THROUGHOUT ITS LENGTH. IF A CURVE IS NEEDEDTO FIT THE SITE CONDITIONS, PLACE IT IN THE UPPER SECTION OF THE APRON.9.IMMEDIATELY AFTER CONSTRUCTION, STABILIZE ALL DISTURBED AREAS WITHVEGETATION.MAINTENANCE1.INSPECT ROCK PIPE INLET PROTECTION AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (0.5INCH OR GREATER) RAINFALL EVENT AND REPAIR IMMEDIATELY. REMOVE SEDIMENT ANDRESTORE THE SEDIMENT STORAGE AREA TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENTHAS ACCUMULATED TO ONE-HALF THE DESIGN DEPTH OF THE TRAP. PLACE THE SEDIMENTTHAT IS REMOVED IN THE DESIGNATED DISPOSAL AREA AND REPLACE THE CONTAMINATEDPART OF THE GRAVEL FACING.2.CHECK THE STRUCTURE FOR DAMAGE. ANY RIPRAP DISPLACED FROM THE STONE HORSESHOEMUST BE REPLACED IMMEDIATELY.3.AFTER ALL THE SEDIMENT-PRODUCING AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVETHE STRUCTURE AND ALL THE UNSTABLE SEDIMENT. SMOOTH THE AREA TO BLEND WITHADJOINING AREAS AND PROVIDE PERMANENT GROUND COVER.CONSTRUCTION SPECIFICATIONS1.CLEAR THE AREA OF ALL DEBRIS THAT MIGHT HINDER THE EXCAVATION AND DISPOSAL OFSPOILS.2.INSTALL THE CLASS B OR CLASS I RIPRAP IN A SEMI-CIRCLE AROUND THE PIPE INLET. THE STONESHOULD BE BUILT UP HIGHER ON EACH END WHERE IT TIES INTO THE EMBANKMENT. THEMINIMUM CREST WIDTH OF THE RIPRAP SHOULD BE 3 FEET, WITH A MINIMUM BOTTOM WIDTH OF11 FEET. THE MINIMUM HEIGHT SHOULD BE 2 FEET, BUT ALSO 1 FOOT LOWER THAN THESHOULDER OF THE EMBANKMENT OR DIVERSIONS.3.A 1 FOOT THICK LAYER OF NC DOT #5 OR #57 STONE SHOULD BE PLACED ON THE OUTSIDE SLOPEOF THE RIPRAP.4.THE SEDIMENT STORAGE AREA SHOULD BE EXCAVATED AROUND THE OUTSIDE OF THE STONEHORSESHOE 18 INCHES BELOW NATURAL GRADE.5.WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, FILL DEPRESSION ANDESTABLISH FINAL GRADING ELEVATIONS, COMPACT AREA PROPERLY, AND STABILIZE WITHGROUND COVER.6-1016-1022"-5"(5-12.5cm)62412"(30cm)6"(15cm)6"(15cm)4"-6"(10-15cm)86"(15cm)574"(10cm)314"(10cm)6"(15cm)ABCABC CRITICAL POINTSA. OVERLAPS AND SEAMSB. PROJECTED WATER LINEC. CHANNEL BOTTOM/SIDE SLOPEVERTICES NOTES:1.HORIZONTAL STAPLE SPACING SHOULD BE ALTERED IFNECESSARY TO ALLOW STAPLES TO SECURE THE CRITICALPOINTS ALONG THE CHANNEL SURFACE.2.IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE OR STAKELENGTHS GREATER THAN 6"(15CM) MAY BE NECESSARY TOPROPERLY SECURE THE RECP'S.INSTALLATION NOTES:1.PREPARE SOIL BEFORE INSTALLING ROLLED EROSION CONTROL PRODUCTS (RECPS), INCLUDING ANYNECESSARY APPLICATION OF LIME, FERTILIZER, AND SEED.2.EROSION CONTROL MATTING TO BE NORTH AMERICAN GREEN OR APPROVED EQUAL.3.BEGIN AT THE TOP OF THE CHANNEL BY ANCHORING THE RECPS IN A 6"(15CM) DEEP X 6"(15CM) WIDETRENCH WITH APPROXIMATELY 12"(30CM) OF RECPS EXTENDED BEYOND THE UP-SLOPE PORTION OFTHE TRENCH. USE SHOREMAX MAT AT THE CHANNEL/CULVERT OUTLET AS SUPPLEMENTAL SCOURPROTECTION AS NEEDED. ANCHOR THE RECPS WITH A ROW OF STAPLES/STAKES APPROXIMATELY12"(30CM) APART IN THE BOTTOM OF THE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTERSTAPLING. APPLY SEED TO THE COMPACTED SOIL AND FOLD THE REMAINING 12"(30CM) PORTION OFRECPS BACK OVER THE SEED AND COMPACTED SOIL. SECURE RECPS OVER COMPACTED SOIL WITHA ROW OF STAPLES/STAKES SPACED APPROXIMATELY 12" APART ACROSS THE WIDTH OF THE RECPS.4.ROLL CENTER RECPS IN DIRECTION OF WATER FLOW IN BOTTOM OF CHANNEL. RECPS WILL UNROLLWITH APPROPRIATE SIDE AGAINST THE SOIL SURFACE. ALL RECPS MUST BE SECURELY FASTENED TOSOIL SURFACE BY PLACING STAPLES/STAKES IN APPROPRIATE LOCATIONS AS SHOWN IN THE STAPLEPATTERN GUIDE.5.PLACE CONSECUTIVE RECPS END-OVER-END (SHINGLE STYLE) WITH A 4"-6" OVERLAP. USE A DOUBLEROW OF STAPLES STAGGERED 4" APART AND 4" ON CENTER TO SECURE RECPS.6.FULL LENGTH EDGE OF RECPS AT TOP OF SIDE SLOPES MUST BE ANCHORED WITH A ROW OFSTAPLES/STAKES APPROXIMATELY 12"(30CM) APART IN A 6"(15CM) DEEP X 6"(15CM) WIDE TRENCH.BACKFILL AND COMPACT THE TRENCH AFTER STAPLING.7.ADJACENT RECPS MUST BE OVERLAPPED APPROXIMATELY 2"-5" (5-12.5CM) (DEPENDING ON RECPSTYPE) AND STAPLED.8.IN HIGH FLOW CHANNEL APPLICATIONS A STAPLE CHECK SLOT IS RECOMMENDED AT 30 TO 40 FOOT(9 -12M) INTERVALS. USE A DOUBLE ROW OF STAPLES STAGGERED 4"(10CM) APART AND 4"(10CM) ONCENTER OVER ENTIRE WIDTH OF THE CHANNEL.9.THE TERMINAL END OF THE RECPS MUST BE ANCHORED WITH A ROW OF STAPLES/STAKESAPPROXIMATELY 12" (30CM) APART IN A 6"(15CM) DEEP X 6"(15CM) WIDE TRENCH. BACKFILL ANDCOMPACT THE TRENCH AFTER STAPLING.6-103GENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.--ISSUED FOR PERMITTINGJR03/09./20170APP. 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, LLCAS SHOWN1/19/2018SR1/9/2018CM66 OF 10ACP\North Carolina\DetailsEROSION AND SEDIMENT CONTROL DETAILSATLANTIC COAST PIPELINENCSEAL--ISSUED IN RESPONSE to NCDEQ COMMENTSEB08/01/171--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017CM09/21/172--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM SEPTEMBER 21, 2017)CM10/06/20173--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 06, 2017)CM10/20/20174--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON NOVEMBER 6, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 20, 2017)CM12/15/20175--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON JANUARY 4, 2018 (SUPERCEEDS REVISIONS FROM DECEMBER 15, 2017)CM1/19/20186FOR REFERENCE ONLY
AINTENANCE1.MANY OF THE RECOMMENDED PERMANENT GRASS SPECIES MAY REQUIRE TWO YEARS FORESTABLISHMENT, DEPENDING ON THE SITE CONDITIONS. INSPECT SEEDED AREAS FOR FAILUREAND MAKE NECESSARY REPAIRS, SOIL AMENDMENTS, AND RESEEDINGS. IF WEEDY EXOTICSPECIES HAVE OVERTAKEN THE AREA AFTER THE FIRST GROWING SEASON, THE INVADINGSPECIES MUST BE ERADICATED TO ALLOW NATIVE SPECIES TO GROW. NATIVE VEGETATIONSARE DIFFICULT TO MANAGE AND TAKE LONGER TO ESTABLISH. MONITOR THE SITE UNTIL LONGTERM STABILITY HAS BEEN ESTABLISHED.RIPARIAN SEEDBED PREPARATION1.Disturbed soils within riparian areas must be amended to provide an optimum environment for seedgermination and seedling growth. The surface soil must be loose enough for water infiltration and rootpenetration. The pH of the soil must be such that it is not toxic and nutrients are available. Riparian areas aregenerally considered rich in nutrients due to flooding and deposition, however, these areas can be highlyvariable (i.e., narrow steep corridors in the mountains, artificial fill material on top of alluvial floodplains in thePiedmont). Soil analysis should be performed to determine nutrient and lime needs of each site. Appropriatelevels of phosphorus and potassium are critical for permanent seed establishment. Appropriate pH levels arebetween 5.5 and 7. Riparian buffers regulated for nutrient management may be limited to a single applicationof fertilizer. Construction activities within the riparian area can greatly compact soils. Suitable mechanicalmeans such as disking, raking, or harrowing must be employed to loosen the compacted soil prior toseeding.SEEDING AND MULCHINGSEE SEED MIXES, SOIL AMENDMENTS, AND MULCHSPECIFICATIONS SPECIFIED IN THE ACPRESTORATION AND REHABILITATION PLAN.1.SEEDBED PREPARATION: AREAS TO BE SEEDEDSHALL BE DISKED TO A DEPTH OF 4-IN TO 6-INWHENEVER FEASIBLE, AND SMOOTHLY GRADED.2.IN TOPSOILED AREAS, SOIL TO BEREDISTRIBUTED EVENLY AND STABILIZED PRIORTO SEEDING.3.STABILIZATION MEASURES SHALL BE INITIATEDAS SOON AS PRACTICABLE IN PORTIONS OF THESITE WHERE CONSTRUCTION ACTIVITIES HAVETEMPORARILY OR PERMANENTLY CEASED, BUTIN NO CASE MORE THAN 21 DAYS AFTER THECONSTRUCTION ACTIVITY IN THAT PORTION OFTHE SITE HAS PERMANENTLY CEASED.4.WHERE THE INITIATION OF STABILIZATIONMEASURES WITHIN 7 DAYS AFTERCONSTRUCTION ACTIVITY TEMPORARILY ORPERMANENTLY CEASES IS PRECLUDED BYSNOW COVER, STABILIZATION MEASURES SHALLBE INITIATED AS SOON AS CONDITIONS ALLOW.5.WHERE CONSTRUCTION ACTIVITY WILL RESUMEON A PORTION OF THE SITE WITHIN 21 DAYSFROM WHEN ACTIVITIES CEASED (E.G., THETOTAL TIME PERIOD THAT CONSTRUCTIONACTIVITY IS TEMPORARILY HALTED IS LESS THAN14 DAYS), THEN STABILIZATION MEASURES DONOT HAVE TO BE INITIATED ON THAT PORTIONOF THE SITE BY THE SEVENTH DAY AFTERCONSTRUCTION ACTIVITIES HAVE TEMPORARILYCEASED.6.AREAS WHERE THE SEED HAS FAILED TOGERMINATE ADEQUATELY (UNIFORM PERENNIALVEGETATIVE COVER WITH A DENSITY OF 80%)WITHIN 30 DAYS, SEEDING AND MULCHING MUSTBE RE-SEEDED IMMEDIATELY, OR AS SOON ASWEATHER PERMITS.7-1017-102GENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.--ISSUED FOR PERMITTINGJR03/09./20170APP. 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, LLCAS SHOWN1/19/2018SR1/9/2018CM67 OF 10ACP\North Carolina\DetailsEROSION AND SEDIMENT CONTROL DETAILSATLANTIC COAST PIPELINENCSEAL--ISSUED IN RESPONSE to NCDEQ COMMENTSEB08/01/171--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017CM09/21/172--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM SEPTEMBER 21, 2017)CM10/06/20173--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 06, 2017)CM10/20/20174--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON NOVEMBER 6, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 20, 2017)CM12/15/20175--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON JANUARY 4, 2018 (SUPERCEEDS REVISIONS FROM DECEMBER 15, 2017)CM1/19/20186
-6%2-6%EXISTINGGROUND#57 STONE OR APPROVEDEQUAL (SUITABLE TOPROVIDE A NON-ERODABLE RUNNING SURFACE)LOD PER PLANSEST. CUT/FILL LINES16' ROADWAY℄EXISTING ROADSURFACE2-6%2-6%PROPOSED SURFACELOD PER PLANSEXISTING ROAD SURFACE℄ACCESS ROADSDETI HAS IDENTIFIED ROADS WHICH WILL BE USED TO PROVIDE ACCESS TO THE PROPOSED ACP PIPELINE ROW AND OTHER FACILITIES DURING CONSTRUCTION AND OPERATION OF THEPROJECTS. IN SOME CASES, EXISTING ROADS WILL REQUIRE IMPROVEMENT (SUCH AS GRADING, GRAVELLING, REPLACING CULVERTS, MINOR WIDENING, AND/OR CLEARING OF OVERHEADVEGETATION) TO SAFELY ACCOMMODATE CONSTRUCTION EQUIPMENT AND VEHICLES. DETI ACCESS ROAD LOCATIONS ARE SHOWN ON THE CONSTRUCTION ALIGNMENT SHEETS. TRAFFICMANAGEMENT PLANS HAVE BEEN DEVELOPED FOR THE PROPOSED PROJECT AND WILL BE IMPLEMENTED AND FOLLOWED DURING CONSTRUCTION TO REDUCE IMPACT TO TRAFFIC FLOW. ITIS ANTICIPATED THE PROPOSED PROJECT WILL NOT IMPACT ROADS OR TRAFFIC DURING THE CONSTRUCTION AND OPERATION OF THE PROJECT.A CONSTRUCTION ENTRANCE WILL BE CONSTRUCTED AT ANY POINT WHERE CONSTRUCTION EQUIPMENT LEAVES THE ROW AND ENTERS A PAVED PUBLIC ROAD OR OTHER PAVED SURFACE.TYPICALLY, A CONSTRUCTION ENTRANCE IS COMPRISED OF FILTER FABRIC OVERLAIN BY 6 INCHES OF COARSE AGGREGATE EXTENDING A MINIMUM OF 100 FEET FROM THE EDGE OF THEPAVEMENT. THE AREA OF THE ENTRANCE MUST BE EXCAVATED 3-INCHES PRIOR TO LAYING THE FILTER FABRIC UNDERLINER. THE ENTRANCE MUST EXTEND THE FULL WIDTH OF THEVEHICULAR INGRESS AND EGRESS AREA AND HAVE A MINIMUM 18-FOOT WIDTH. CONVEYANCE OF SURFACE WATER THROUGH CULVERTS UNDER THE ENTRANCE WILL BE PROVIDED, ASNECESSARY.THE CONSTRUCTION ENTRANCE MUST FUNCTION TO REMOVE MUD FROM VEHICLES AND EQUIPMENT LEAVING THE ROW. AS MUD ACCUMULATES ON THE ENTRANCE, CLEAN STONE MUSTBE ADDED OR THE TIRE MATS LIFTED AND SHAKEN TO REMOVE MUD. ANY MUD THAT IS CARRIED ONTO THE PAVEMENT MUST BE THOROUGHLY REMOVED BY THE END OF THE DAY BYSHOVELING OR SWEEPING. THE MUD WILL BE RETURNED TO THE ROW. THE USE OF WATER TO REMOVE SEDIMENT TRACKED ONTO ROADWAYS IS PERMITTED ONLY AFTER SEDIMENT ISREMOVED AS STATED ABOVE.MAINTENANCE OF THE CONSTRUCTION ENTRANCE MAY REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL STONE AND CLEANOUT OF ANY STRUCTURES USED TO TRAP SEDIMENT.ADDITIONALLY, THE CONSTRUCTION ENTRANCE MAY NEED TO BE SHOVELED THEN SWEPT, FOLLOWED BY WASHING OF THE ENTRANCE TO REMOVE ANY SEDIMENT BUILD UP. IF ANYINADVERTENTLY SEDIMENT TRACKING OCCURS ON THE PUBLIC ROADWAY, THE ROAD WILL BE CLEANED THOROUGHLY BY THE END OF EACH DAY.DETI HAS IDENTIFIED BOTH PRIVATE AND PUBLIC ROADS WHICH WILL BE USED TO PROVIDE ACCESS TO THE PROPOSED ACP PIPELINE ROW AND OTHER FACILITIES DURING CONSTRUCTIONAND OPERATION OF THE PROJECT. IN SOME CASES, EXISTING ROADS WILL REQUIRE IMPROVEMENT (SUCH AS GRADING, GRAVELLING, REPLACING OR INSTALLING CULVERTS, MINORWIDENING, AND/OR CLEARING OF OVERHEAD VEGETATION) TO SAFELY ACCOMMODATE CONSTRUCTION EQUIPMENT AND VEHICLES. THE FOLLOWING CONDITIONS APPLY TO THE USE OFACCESS ROADS:1.ACCESS ROADS WILL BE USED FOR THE TRANSPORTATION OF PERSONNEL (CREW TRUCK) TO AND FROM THE CONSTRUCTION ROW. OCCASIONAL EQUIPMENT/MATERIAL DELIVERIES WILLUTILIZE THE ACCESS ROADS FOR ROW ACCESS. A TRAFFIC MANAGEMENT PLAN WILL BE IMPLEMENTED TO LIMIT TRAFFIC TO ONE DIRECTION OF TRAVEL.2.THE PROJECT WILL UTILIZE EXISTING ROADS FOR ACCESS. NO NEW ACCESS ROADS AND/OR ROADSIDE DITCHES ARE BEING CONSTRUCTED. IMPROVEMENTS TO ACCESS ROADS MAYINCLUDE PLACEMENT OF STONE FOR ALL WEATHER ACCESS AND DURABILITY. EXISTING ROADSIDE DITCHES WILL NOT BE DISTURBED.3.CONSTRUCTION ENTRANCES WILL HAVE STONE ACCESS ENTRANCE AND EXIT DRIVES AND PARKING AREAS TO REDUCE THE TRACKING OF SEDIMENT ONTO PUBLIC OR PRIVATE ROADS. ACONSTRUCTION ENTRANCE WILL BE CONSTRUCTED AT ANY POINT WHERE CONSTRUCTION EQUIPMENT LEAVES THE ROW AND ENTERS A PAVED PUBLIC ROAD OR OTHER PAVED SURFACE.4.DURING CONSTRUCTION AND RESTORATION ACTIVITIES, ACCESS TO THE ROW IS LIMITED TO THE USE OF EXISTING ACCESS ROADS IDENTIFIED ON THE CONSTRUCTION ALIGNMENTSHEETS.5.ROADSIDE GROWTH SHALL BE REMOVED TO THE GROUND SURFACE TO ALLOW FOR ROAD CONSTRUCTION. OVERHEAD OBSTRUCTIONS (TREE LIMBS, ETC.) SHALL BE REMOVED TO ALLOWFOR VEHICLE PASSAGE.6.INSTALL EROSION AND SEDIMENT CONTROL MEASURES (SILT FENCE, ROCK CHECK DAMS, ETC.) AS SHOWN ON THE ALIGNMENT SHEETS.7.ROADSIDE SIDE SLOPES SHALL BE NO STEEPER THAN 3:1 AND SWALES MUST BE VEGETATED.8.TO THE EXTENT POSSIBLE, ACCESS THROUGH WETLANDS WILL BE LIMITED TO THE CONSTRUCTION ROW AND THOSE EXISTING ROADS REQUIRING NO MODIFICATION OR IMPROVEMENTS,OTHER THAN ROUTINE REPAIR, AND POSING NO IMPACT ON THE WETLAND.9.THE CONSTRUCTION ROW MAY BE USED FOR ACCESS ACROSS WETLANDS WHEN THE WETLAND SOIL IS FIRM ENOUGH TO AVOID RUTTING OR THE CONSTRUCTION ROW HAS BEENAPPROPRIATELY STABILIZED TO AVOID RUTTING (E.G., TIMBER MATTING). HOWEVER, ACCESS IS NOT ALLOWED THROUGH WETLANDS THAT WOULD NOT OTHERWISE BE IMPACTED BYTHE PROJECT.10.IN WETLANDS THAT CANNOT BE APPROPRIATELY STABILIZED, ALL CONSTRUCTION EQUIPMENT OTHER THAN THAT NEEDED TO INSTALL THE WETLAND CROSSING WILL USE ACCESS ROADSLOCATED IN UPLAND AREAS. WHERE ACCESS ROADS IN UPLAND AREAS DO NOT PROVIDE REASONABLE ACCESS, LIMIT ALL OTHER CONSTRUCTION EQUIPMENT TO ONE PASS THROUGHTHE WETLAND USING THE CONSTRUCTION ROW.11.INSTALL CULVERTS, OUTLET STABILIZATION, PIPE INLET PROTECTION, MATTING, SEEDING AND CHECK DAMS AS INDICATED ON THE ALIGNMENT SHEETS.12.MAINTAIN SAFE AND ACCESSIBLE CONDITIONS AT ALL ROAD CROSSINGS AND ACCESS POINTS DURING CONSTRUCTION AND RESTORATION. ACCESS ROAD MAINTENANCE THROUGH THECONSTRUCTION SEQUENCE MAY INCLUDE GRADING AND THE ADDITION OF GRAVEL OR STONE WHEN NECESSARY.13.MAINTAIN ACCESS ROADS IN A STABLE MANNER TO PREVENT OFF-ROW IMPACTS, INCLUDING IMPACTS TO ADJACENT AND/OR NEARBY SENSITIVE RESOURCE AREAS, AND IMPLEMENT ALLAPPROPRIATE ESC MEASURES FOR CONSTRUCTION/IMPROVEMENT OF ACCESS ROADS.14.IF EROSION IS OBSERVED ADJACENT TO ACCESS ROADS, IMMEDIATELY REPAIR, STABILIZE, OR IMPLEMENT ADDITIONAL ESC MEASURES. ADDITIONAL MEASURES INCLUDE SILT FENCE,CHECK DAMS, OR EROSION CONTROL FABRIC. THE EI WILL IMPLEMENT THE APPROPRIATE ESC MEASURE BASED UPON OBSERVED SITE CONDITIONS. SEE DETAIL 2 ON SHEET 1-10, DETAIL1 ON SHEET 5-10 AND DETAIL 3 ON SHEET 6-10.15.MINIMIZE THE USE OF TRACKED EQUIPMENT ON PUBLIC ROADWAYS AND IN ACCORDANCE WITH REQUIREMENTS OF THE MANAGING AGENCY.16.REMOVE ANY SOIL OR GRAVEL SPILLED OR TRACKED ONTO ROADWAYS DAILY OR MORE FREQUENT AS NECESSARY TO MAINTAIN SAFE ROAD CONDITIONS.17.REPAIR ANY DAMAGES TO ROADWAY SURFACES, SHOULDERS, AND BAR DITCHES.18.IF CRUSHED STONE/ROCK ACCESS PADS ARE USED IN RESIDENTIAL OR AGRICULTURAL AREAS, STONE WILL BE PLACED ON SYNTHETIC, NONWOVEN GEOTEXTILE FABRIC TO FACILITATEREMOVAL AFTER CONSTRUCTION.19.ALL ACCESS ROADS ACROSS A WATERBODY MUST USE AN EQUIPMENT BRIDGE.20.FOR ACCESS THROUGH A SATURATED WETLAND, USE TIMBER MATS OR AN EQUIVALENT UNLESS OTHERWISE AUTHORIZED BY AGENCY PERMITS.21.LIMIT CONSTRUCTION EQUIPMENT OPERATING IN WETLAND AREAS TO THAT NEEDED TO CLEAR THE ROW, DIG THE TRENCH, FABRICATE AND INSTALL THE PIPELINE, BACKFILL THETRENCH, AND RESTORE THE CONSTRUCTION ROW. ALL OTHER CONSTRUCTION EQUIPMENT WILL USE ACCESS ROADS LOCATED IN UPLAND AREAS TO THE MAXIMUM EXTENT PRACTICAL.22.ROADS WILL BE SURFACED WITH STONE (#57 OR SIMILAR) OR ANOTHER SUITABLE MATERIAL TO PROVIDE A NON-ERODIBLE RUNNING SURFACE.23.CUT-BANKS AND FILL-SLOPES WILL BE STABILIZED ACCORDING TO THE STABILIZATION GUIDELINES ON SHEET 7 OF 10 OF THE E&SC DETAILS.24.SILT FENCE OR STONE OUTLET PROTECTION WILL BE CONSTRUCTED AT OUTLETS OF DRAINAGE STRUCTURES.25.WHEN ACCESS ROADS INTERSECT PUBLIC HIGHWAYS, THE CONTRACTOR WILL USE A COMBINATION OF GEOTEXTILE AND STONE (TEMPORARY STONE CONSTRUCTION ENTRANCE) TO HELPKEEP MUD OFF HIGHWAY ENTRANCES. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE, THE ROAD SURFACE WILL BE CLEANED THOROUGHLY AT THE ENDOF EACH DAY. SEDIMENT WILL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING WILL BEALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER.26.ROADS WILL BE MAINTAINED SO THAT WATER CAN FLOW FREELY FROM THE ROAD SURFACE.27.TEMPORARY ACCESS ROADS WILL FOLLOW EXISTING CONTOURS AS MUCH AS POSSIBLEHORIZONTAL DIRECTIONAL DRILL (HDD)THE HDD METHOD IS A PROCESS THAT ALLOWS FOR TRENCHLESS CONSTRUCTION BY DRILLING A HOLE BENEATH A SURFACE FEATURE, SUCH AS A WATERBODY OR OTHER UNIQUE RESOURCE, AND INSTALLING A PREFABRICATED SEGMENT OFPIPELINE THROUGH THE HOLE. THE METHOD AVOIDS DISTURBANCE TO THE SURFACE OF THE ROW BETWEEN THE ENTRY AND EXIT POINTS OF THE DRILL. THE METHOD IS SOMETIMES USED TO INSTALL PIPELINES UNDERNEATH SENSITIVERESOURCES OR AREAS THAT PRESENT DIFFICULTIES ASSOCIATED WITH CONSTRUCTION OR ACCESS USING TYPICAL INSTALLATION METHODS. HDDS CAN PROVIDE CERTAIN ADVANTAGES OVER TYPICAL CONSTRUCTION METHODS, SUCH ASAVOIDANCE OF SURFACE DISTURBANCE, RIPARIAN TREE CLEARING, OR IN-STREAM CONSTRUCTION.FOR EACH HDD CROSSING, ELECTRIC GRID GUIDE WIRES WILL BE LAID BY HAND ON THE GROUND ALONG THE PIPELINE CENTERLINE TO CREATE AN ELECTROMAGNETIC SENSOR GRID. THE GRID WILL BE USED BY THE HDD OPERATOR TO STEERTHE DRILL HEAD DURING DRILLING. NO GROUND OR SURFACE DISTURBING ACTIVITIES WILL BE REQUIRED FOR INSTALLATION OF THE GUIDE WIRES. IN THICKLY VEGETATED AREAS, HOWEVER, A SMALL PATHWAY MEASURING APPROXIMATELY2 TO 3 FEET IN WIDTH MAY NEED TO BE CUT WITH HAND TOOLS TO CREATE A PATH FOR THE WIRES.TO COMPLETE EACH HDD, A DRILL RIG WILL BE PLACED ON THE ENTRY SIDE OF THE CROSSING AND A SMALL-DIAMETER PILOT HOLE WILL BE DRILLED ALONG A PREDETERMINED PATH BENEATH THE WATERBODY USING A POWERED DRILL BIT.AS DRILLING PROGRESSES, ADDITIONAL SEGMENTS OF DRILL PIPE WILL BE INSERTED INTO THE PILOT HOLE TO EXTEND THE LENGTH OF THE DRILL. THE DRILL BIT WILL BE STEERED AND MONITORED THROUGHOUT THE PROCESS TO MAINTAINTHE DESIGNATED PATH OF THE PILOT HOLE. ONCE THE PILOT HOLE IS COMPLETE, THE ELECTRIC SENSOR GRID WILL BE REMOVED AND THE HOLE WILL BE ENLARGED TO ACCEPT THE PIPELINE.TO ENLARGE THE PILOT HOLE, A LARGER REAMING TOOL WILL BE ATTACHED TO THE END OF THE DRILL ON THE EXIT SIDE OF THE HOLE. THE REAMER WILL BE DRAWN BACK THROUGH THE PILOT HOLE TO THE DRILL RIG ON THE ENTRY SIDE OFTHE HOLE. DRILL PIPE SECTIONS WILL BE ADDED TO THE REAR OF THE REAMER AS IT PROGRESSES TOWARD THE RIG, ALLOWING A STRING OF DRILL PIPE TO REMAIN IN THE HOLE AT ALL TIMES. SEVERAL PASSES WITH PROGRESSIVELY LARGERREAMING TOOLS WILL BE REQUIRED TO ENLARGE THE HOLE TO A SUFFICIENT DIAMETER TO ACCOMMODATE THE PIPELINE. THE FINAL HOLE WILL BE APPROXIMATELY 12 INCHES LARGER THAN THE PIPELINE TO BE INSTALLED.THROUGHOUT THE DRILLING PROCESS, A FLUID MIXTURE CONSISTING OF WATER AND BENTONITE CLAY (A NATURALLY OCCURRING MINERAL) WILL BE PUMPED INTO THE DRILL HOLE TO LUBRICATE THE BIT, TRANSPORT CUTTINGS TO THESURFACE, AND MAINTAIN THE INTEGRITY OF THE HOLE. WATER FOR THE MIXTURE WILL BE PUMPED FROM THE WATERBODY TO THE DRILL SITE THROUGH A HOSE OR TEMPORARY NETWORK OF IRRIGATION-TYPE PIPING OR TRUCKED IN FROMANOTHER SOURCE. THE PUMP INTAKE WILL BE APPROPRIATELY SCREENED TO PREVENT ENTRAINMENT OF AQUATIC SPECIES. SMALL PITS WILL BE DUG AT OR NEAR THE ENTRY AND EXIT POINTS FOR THE HDD TO TEMPORARILY STORE THEDRILLING FLUID AND CUTTINGS. THE FLUID AND CUTTINGS WILL BE PUMPED FROM THE PITS TO AN ON-SITE RECYCLING UNIT WHERE THE FLUID WILL BE PROCESSED FOR REUSE.THE PIPELINE SEGMENT (ALSO CALLED A PULL SECTION) TO BE INSTALLED BENEATH THE SURFACE FEATURE WILL BE FABRICATED ON THE ROW OR IN THE ADDITIONAL TEMPORARY WORK SPACE (ATWS) ON THE EXIT SIDE OF THE CROSSINGWHILE THE DRILL HOLE IS REAMED TO SIZE. THE PULL SECTION WILL BE INSPECTED AND HYDROSTATICALLY TESTED PRIOR TO INSTALLATION.AS THE PIPELINE IS BEING INSTALLED, EXCESS DRILLING FLUID WILL BE COLLECTED AND INCORPORATED INTO THE SOIL IN AN UPLAND AREA OR DISPOSED OF AT AN APPROPRIATE FACILITY. IF WATER IS LEFT OVER FROM THE DRILLINGPROCESS, IT WILL BE DISCHARGED INTO A WELL-VEGETATED UPLAND AREA OR AN ENERGY DISSIPATION/SEDIMENT FILTRATION DEVICE, SUCH AS A GEOTEXTILE FILTER BAG, IN A MANNER THAT DOES NOT AFFECT FLOWING STREAMS OROFF-SITE PROPERTY.IF AN HDD CROSSING IS SUCCESSFUL, THERE ARE LITTLE TO NO IMPACTS ON THE SURFACE FEATURE BEING CROSSED. IF A NATURAL FRACTURE OR WEAK AREA IN THE GROUND IS ENCOUNTERED DURING DRILLING, HOWEVER, ANINADVERTENT RETURN OF DRILLING FLUID TO THE ENVIRONMENT COULD OCCUR. SUBSTRATE CONSISTING OF UNCONSOLIDATED GRAVEL, COARSE SAND, OR FRACTURED BEDROCK COULD PRESENT CIRCUMSTANCES THAT INCREASE THELIKELIHOOD OF AN INADVERTENT RETURN. DEPENDING ON THE ORIENTATION OF THE NATURAL FRACTURE OR SUBSTRATE, THE DRILLING FLUID MAY MOVE LATERALLY OR VERTICALLY FROM THE DRILL HOLE. IF THE DRILLING FLUID MOVESLATERALLY, THE RELEASE MAY NOT BE EVIDENT ON THE GROUND. FOR AN INADVERTENT RETURN TO BE EVIDENT ON THE SURFACE, THERE MUST BE A PREFERENTIAL PATHWAY EXTENDING VERTICALLY FROM THE DRILL HOLE TO THE SURFACEOF THE GROUND. THE VOLUME OF FLUID RELEASED IN AN INADVERTENT RETURN IS DEPENDENT ON A NUMBER OF FACTORS, INCLUDING THE SIZE OF THE PATHWAY, THE PERMEABILITY OF THE GEOLOGIC MATERIAL, THE VISCOSITY OF THEFLUID, AND THE PRESSURE OF THE HYDRAULIC DRILLING SYSTEM.DETI'S HORIZONTAL DIRECTIONAL DRILL FLUID MONITORING, OPERATIONS, AND CONTINGENCY PLAN (HDD PLAN), IDENTIFIES TYPICAL CONTINGENCY MEASURES TO BE IMPLEMENTED IN THE EVENT OF A DRILL FAILURE, SUCH AS DRILLINGALONG A NEW PATH, ABANDONING AND SEALING THE DRILL HOLE, AND IMPLEMENTING AN ALTERNATE CROSSING METHOD, AND DESCRIBES THE PROCEDURES TO BE FOLLOWED IN THE EVENT OF AN INADVERTENT RETURN OF DRILLINGFLUID. IF A RELEASE OCCURS ON LAND, INCLUDING WITHIN A WETLAND, A SMALL PIT WILL BE EXCAVATED AT THE RELEASE SITE TO CONTAIN THE SPREAD OF THE FLUID, AND A PUMP WILL BE USED TO TRANSFER THE FLUID FROM THE PITINTO A CONTAINMENT VESSEL. IF AN INADVERTENT RETURN OCCURS IN A WATERBODY, IT WILL BE MORE DIFFICULT TO CONTAIN BECAUSE THE FLUID WILL BE DISPERSED INTO THE WATER AND CARRIED DOWNSTREAM. IN THIS SITUATION,AN ATTEMPT WILL BE MADE TO PLUG THE FLOW PATH BY ADDING THICKENING AGENTS TO THE DRILLING FLUID, SUCH AS ADDITIONAL BENTONITE, COTTONSEED HULLS, OR OTHER NON-HAZARDOUS MATERIALS. DETI WILL CONSULT WITHAND OBTAIN PERMISSION FROM THE APPROPRIATE STATE REGULATORY AGENCIES REGARDING THE USE OF ADDITIVES DURING THE HDD (OR CONVENTIONAL BORE) PROCESS, AND CONFIRM THAT ADDITIVES WILL NOT VIOLATE WATERQUALITY STANDARDS.PROPOSED PIPELINEMARKER (TYP)EXISTING GROUND13PROPOSED ACP 36" DIA.AP-2 STEEP PIPELINE1111INFLUENCE LINE(TYP.)50'50'10' MIN.5' MIN.5' MIN.ROAD CENTERLINE ℄DITCH ℄DITCH ℄EXISTING EOPEXISTING EOPVARIESVARIESLEGAL R/W LINELEGAL R/W LINE10' MIN.NOTES:1.BORE PITS ARE TO BE 15'X50'AND A MINIMUM OF 10' DEEP.2.BORE PITS ARE TO BE 18"BELOW THE BOTTOM OF PIPE.3.45° INFLUENCE LINES MUST BEMAINTAINED AT ALL ROADCROSSINGS.4.BORE PIT LOCATED WITHINR.O.W.EXISTING ROADMAINTENANCE NOTES:1.MAINTAIN ESC MEASURES (ASSHOWN ON THE ALIGNMENTSHEETS)2.BORE PIT SPOIL MATERIAL TO BESURROUNDED BY BSRF AT THECOMPLETION OF EACH WORKDAY.STOCKPILESTOCKPILEBSRF (AROUND STOCKPILE)BSRF (AROUND STOCKPILE)BSRF (AROUND BORE PIT, AS NEEDED)BSRF (AROUND STOCKPILE)BSRF (AROUND STOCKPILE)BSRF (AROUND BORE PIT, AS NEEDED)8-1018-1028-103BSRF WHERE INDICATED ONALIGNMENT SHEETSBSRF WHERE INDICATED ONALIGNMENT SHEETSGENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.--ISSUED FOR PERMITTINGJR03/09./20170APP. 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, LLCAS SHOWN1/19/2018SR1/9/2018CM68 OF 10ACP\North Carolina\DetailsEROSION AND SEDIMENT CONTROL DETAILSATLANTIC COAST PIPELINENCSEAL--ISSUED IN RESPONSE to NCDEQ COMMENTSEB08/01/171--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017CM09/21/172--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM SEPTEMBER 21, 2017)CM10/06/20173--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 06, 2017)CM10/20/20174--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON NOVEMBER 6, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 20, 2017)CM12/15/20175--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON JANUARY 4, 2018 (SUPERCEEDS REVISIONS FROM DECEMBER 15, 2017)CM1/19/20186BSRFBSRFEXISTINGGROUNDSIDE SLOPES NO LESS THAN 3:1VEGETATED SWALESSIDE SLOPES NO LESS THAN 3:1VEGETATED SWALESCLEAR ROADSIDE GROWTH TOGROUND SURFACE#57 STONE OR APPROVEDEQUAL (SUITABLE TOPROVIDE A NON-ERODABLE RUNNING SURFACE)CLEAR ROADSIDE GROWTH TOGROUND SURFACE
ROSION AND SEDIMENT CONTROL PLAN NARRATIVETHE EROSION AND SEDIMENT (E&S) CONTROL MEASURES FOR THE PIPELINE CONSTRUCTION ACTIVITIES PRIMARILY CONSIST OF BUT ARENOT LIMITED TO COMPOST FILTER SOCK, BELTED SILT RETENTION FENCE, SUPER SILT FENCE, SLOPE BREAKERS, AND TEMPORARY ANDPERMANENT SEEDING AND MULCHING. BEST MANAGEMENT PRACTICES (BMP) SPECIFICATIONS FOR THE E&S CONTROL PLAN (E&SCP) ARE TOBE UTILIZED BY THE CONSTRUCTION CONTRACTOR ACCORDING TO THE PROVIDED PLAN.GENERAL CONSTRUCTION NOTES:1.DISCHARGING SEDIMENT LADEN WATER WHICH WILL CAUSE OR CONTRIBUTE TO THE DEGRADATION OF A BENEFICIAL USE OF A WATEROF THE STATE FROM THE CONSTRUCTION SITE, A DEWATERING SITE, OR SEDIMENT BASINTRAP INTO ANY SURFACE WATER WITHOUTFILTRATION OR EQUIVALENT TREATMENT IS PROHIBITED.2.THE DISCHARGER SHALL AMEND THE EROSION & SEDIMENT CONTROL PLAN WHENEVER THERE IS A CHANGE IN THE CONSTRUCTION OROPERATIONS, WHICH MAY EFFECT THE DISCHARGE OF POLLUTANTS TO SURFACE WATERS OR GROUNDWATER.3.DISCHARGES ORIGINATING FROM OFF-SITE SOURCES, WHICH FLOW THROUGH OR ACROSS THE AREAS DISTURBED BY CONSTRUCTION,MAY BE DIVERTED AROUND THE ACTIVE CONSTRUCTION AREA WHENEVER POSSIBLE.4.DUE TO VARYING SITE CONDITIONS, ADDITIONAL SEDIMENT CONTROL BMPS MAY BE NECESSARY BEYOND THE MEASURES SHOWN ONTHE E&S CONTROL PLAN.5.CONTACT THE DEMLR RALEIGH REGIONAL OFFICE (CONTACT NUMBER: [phone]) OR FAYETTEVILLE REGIONAL OFFICE (CONTACTNUMBER: [phone]) AT LEAST 48 HOURS PRIOR TO COMMENCING IN LAND DISTURBING ACTIVITY FOR EACH SECTION OF THEPROJECT. WORK SECTIONS ARE DEFINED AS WORK PERFORMED ON ANY PORTION OF OF A SINGLE ALIGNMENT SHEET ( X WORKSECTIONS).6.STAGING AREAS, ASSEMBLY AREAS, TEMPORARY EQUIPMENT AND NON-HAZARDOUS MATERIAL STORAGE AREAS SHALL BE LOCATEDOUTSIDE 100-YR FLOOD ZONES. HAZARDOUS MATERIAL STORAGE AREAS SHALL BE LOCATED AT LEAST 100 FEET BACK FROM SURFACEWATER BODIES.7.EQUIPMENT STORAGE IN CONSTRUCTION STAGING AREAS SHALL BE LOCATED A MINIMUM OF 100 FEET AWAY FROM A STREAM ORWETLAND EDGE.8.AT MINIMUM, ALL BMPS ARE TO BE INSPECTED ONCE EVERY SEVEN CALENDAR DAYS AND WITHIN 24 HOURS AFTER ANY STORM EVENTGREATER THAN 0.5-INCH PER 24-HOUR PERIOD DURING THE ENTIRE PROJECT. A WRITTEN REPORT MUST ALSO BE COMPLETED,DOCUMENTING EACH INSPECTION AND, IF NECESSARY, ANY REPAIR, REPLACEMENT OR MAINTENANCE ACTIVITY.9.THE CONTRACTOR SHALL TAKE PRECAUTIONARY MEASURES TO PROTECT ANY EXISTING FACILITY SHOWN ON THE DRAWINGS, AND ANYOTHER WHICH IS NOT ON RECORD OR NOT SHOWN ON THE DRAWINGS. THE CONTRACTOR SHALL POTHOLE EXISTING UTILITIES AT THEPOINTS OF CONNECTION AND ALL UTILITY CROSSINGS TO DETERMINE EXACT LOCATIONS PRIOR TO THE START OF WORK. ANYDISCREPANCIES BETWEEN THESE DRAWINGS AND EXISTING CONDITIONS SHALL BE REPORTED TO THE ENGINEER OF RECORDIMMEDIATELY.10.ALL WORK WITHIN A PUBLIC RIGHT-OF-WAY SHALL BE COORDINATED WITH THE AGENCY HAVING JURISDICTION.11.ALL REQUIRED PERMITS MUST BE OBTAINED PRIOR TO STARTING WORK.12.DURING CONSTRUCTION, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONSTRUCTION, STABILIZATION AND MAINTENANCE OF ALLEXISTING AND PROPOSED SITE EROSION & SEDIMENTATION CONTROL DEVICES AND FACILITIES.13.THE CONTRACTOR AGREES THAT IN ACCORDANCE WITH GENERALLY ACCEPTED CONSTRUCTION PRACTICES, THE CONTRACTOR WILLBE REQUIRED TO ASSUME SOLE AND COMPLETE RESPONSIBILITY FOR JOB SITE CONDITIONS DURING THE COURSE OF CONSTRUCTIONOF THE PROJECT, INCLUDING EROSION & SEDIMENTATION DEVICES AND SAFETY OF ALL PERSONS AND PROPERTY; THAT THISREQUIREMENT SHALL BE MADE TO APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS, AND CONSTRUCTIONCONTRACTOR FURTHER AGREES TO DEFEND, INDEMNIFY AND HOLD THE ENGINEER OF RECORD HARMLESS OF ANY AND ALL LIABILITY,REAL OR ALLEGED, IN CONNECTION WITH THE PERFORMANCE OF WORK ON THIS PROJECT, EXCEPTING LIABILITY ARISING FROM THESOLE NEGLIGENCE OF ENGINEER OF RECORD.14.AS SITE SPECIFIC CONDITIONS MAY WARRANT, THE E&SC PLAN MAY REQUIRE MINOR MODIFICATIONS TO ENSURE PROPER PROTECTIONOF RECEIVING WATERS. THE RESPECTIVE PROJECT ENVIRONMENTAL INSPECTOR (EI) WILL IDENTIFY SITE SPECIFIC AREAS WHERE ACERTAIN BMP MODIFICATION(S) IS NECESSARY TO EITHER OMIT OR ENHANCE BMPS IN SUCH AREAS. THIS PROCESS ENTAILS THE EI TOIDENTIFY LOCATIONS WHERE BMPS WILL NEED TO BE ALTERED, SUBSTITUTED OR OMITTED AND CONTACT THE DOMINION GASCOMPLIANCE SPECIALIST TO REVIEW PROPOSED CHANGES. UPON REVIEW AND APPROVAL BY THE DOMINION COMPLIANCE SPECIALIST,THE EI WILL REDLINE, DATE, AND SIGN THE E&SCP DRAWING(S) DEPICTING THE REDLINE CHANGE(S). ONCE THIS PROCESS ISCOMPLETED, THE EI WILL NOTIFY NCDEQ OF SUCH MINOR MODIFICATION REDLINE AMENDMENTS AS REQUIRED BY THE GENERALPERMIT.SEQUENCE OF CONSTRUCTION1. A PRE-CONSTRUCTION MEETING SHOULD TAKE PLACE PRIOR TO START OF CONSTRUCTION ACTIVITIES.2. BEGIN CLEARING AND GRUBBING SITE. CLEAR AND GRUB ONLY THOSE AREAS NECESSARY FOR INSTALLATION OF THE EROSION CONTROLMEASURES.3. INSTALL EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON THE PLANS. ALL MEASURES TO BE INSTALLED WITHIN THE LIMITS OFDISTURBANCE.4. ONCE EROSION CONTROL MEASURES HAVE BEEN INSTALLED AND PRIOR TO SEDIMENT REMOVAL ACTIVITIES, THE SITE IS TO BE INSPECTEDBY NCDEQ - DEMLR.5. GRADE SITE ACCORDING TO CONTRACT DOCUMENTS. MAINTAIN EROSION CONTROL DEVICES AS NEEDED.6. INSTALL STORM DRAINAGE AS INDICATED ON PLANS.7. GRASS OR OTHERWISE STABILIZE ALL AREAS AS THEY ARE BROUGHT TO FINAL GRADES.8. THE CONTRACTOR SHALL DILIGENTLY AND CONTINUOUSLY MAINTAIN ALL EROSION CONTROL DEVICES AND STRUCTURES TO MINIMIZEEROSION. INSPECT AND REPAIR MEASURES AFTER EACH RAINFALL AND AS NEEDED THROUGHOUT THE PROJECT.9. CONTRACTOR TO REMOVE EROSION CONTROL DEVICES AT THE CONCLUSION OF THIS CONTRACT UPON APPROVAL BY NCDEQ-DEMLR.CONTRACTOR IS TO CLEAN-OUT, REPAIR AND GRASS STABILIZE ALL DENUDED AREAS. ALL AREAS WILL BE RETURNED TO THE STATE OFEXISTING CONDITIONS PRIOR TO CONTRACT AS A MINIMUM.10. IT IS THE CONTRACTOR'S RESPONSIBILITY TO CONTAIN SEDIMENT ONSITE. ADDITIONAL EROSION CONTROL MEASURES MAY BE REQUIRED BYTHE ENGINEER.11. ALL EROSION CONTROL MEASURES TO BE IN ACCORDANCE WITH THE NORTH CAROLINA EROSION AND SEDIMENT CONTROL PLANNING ANDDESIGN REQUIREMENTS AND LAND DEVELOPMENT STANDARDS.MAINTENANCE SCHEDULEAFTER FULL REVEGETATION HAS BEEN ACHIEVED, ALL BMPS WILL BE REMOVED AND ANY LAND DISTURBED BY REMOVAL WILL BEPERMANENTLY STABILIZED. UNLESS OTHERWISE SPECIFIED, ALL MAINTENANCE MUST BE COMPLETED IMMEDIATELY AFTER AN INSPECTIONIDENTIFIES THAT A BMP IS NOT FUNCTIONING AS REQUIRED.·THE ROW AND ESC DEVICES WILL BE INSPECTED DAILY AT THE ACTIVE CONSTRUCTION SITE AND AT LEAST ONCE EVERY SEVENCALENDAR DAYS FOR ACTIVELY DISTURBED AREAS, 14 CALENDAR DAYS FOR RESTORED AREAS, AND WITHIN 24 HOURS AFTER ANYSTORM EVENT GREATER THAN ONE-HALF-INCH PER 24-HOUR PERIOD.·SEDIMENT MUST BE REMOVED WHERE ACCUMULATION REACHES ONE-HALF THE ABOVE GROUND HEIGHT OF THE CONTROL MEASURE.·EROSION CONTROL MEASURES, WHICH HAVE BEEN UNDERMINED OR TOPPED, SHALL BE REPAIRED IMMEDIATELY.·OTHER REQUIRED REPAIRS OR MAINTENANCE SHALL BE MADE IMMEDIATELY.·TEMPORARY AND PERMANENT E&S CONTROL BMPS SHALL BE MAINTAINED AND REPAIRED AS NEEDED TO ASSURE CONTINUEDPERFORMANCE OF THEIR INTENDED FUNCTION.·A SELF-INSPECTION AND COMPLETION OF SELF-INSPECTION FORM IS REQUIRED AFTER EACH PHASE OF CONSTRUCTION IS COMPLETED.SELF-INSPECTION FORM CAN BE FOUND HERE: http://deq.nc.gov/about/divisions/energy-mineral-land-resources/erosion-sediment-control/formsMATERIAL WASTE HANDLING AND RECYCLING1.SOLID WASTE DISPOSAL SHALL BE HANDLED THROUGH ONE OF THE LOCAL LICENSED WASTE MANAGEMENT PROVIDERS AND PERMITTEDDISPOSAL FACILITIES. THE CONTRACTOR WILL PROVIDE MOBILE AND COVERED WASTE RECEPTACLES AS NEEDED ALONG THE PROJECTLIMITS. CONTRACTOR SHALL ALSO PROVIDE A COVERED DUMPSTER FOR CONSOLIDATION OF WASTE FOR PICK UP AND DISPOSAL FORTHE DURATION OF THE PROJECT. ALL SOLID WASTE SHALL BE DISPOSED OF AT A LICENSED PERMITTED MUNICIPAL LANDFILL.2.THE CONTRACTOR WILL BE RESPONSIBLE FOR ANY PERMITS AN DOR DISPOSAL FEES. THE CONTRACTOR SHALL BE SOLELYRESPONSIBLE TO ASSURE THAT ALL MATERIALS AREA HANDLED AND DISPOSED OF IN ACCORDANCE WITH APPLICABLE LAWS, RULES,AND REGULATIONS, INCLUDING BUT NOT LIMITED TO THOSE ISSUED BY THE ENVIRONMENTAL PROTECTION AGENCY, NCDEQ, ANDOCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION.3.CONTRACTOR SHALL PRACTICE GOOD HOUSEKEEPING FOR THE DURATION OF THE PROJECT INCLUDING THE ROUTINE REMOVAL ANDDISPOSAL OF SOLID WASTE.4.CONTRACTOR SHALL KEEP RECORDS OF PROPER SOLID WASTE DISPOSAL AND PROVIDE COPIES TO THE EI.POLLUTANT CONTROLS·SPILLS OCCURRING DURING CONSTRUCTION, OPERATION, AND MAINTENANCE ARE TO BE REPORTED IMMEDIATELY TO THEMONITORING CENTER IN ACCORDANCE WITH DOMINION POLICIES, PLANS, AND PROCEDURES. DOMINION'S ENVIRONMENTALHEALTH AND SAFETY DEPARTMENT WILL BE RESPONSIBLE FOR CONTACTING THE APPROPRIATE AGENCIES, EXCEPT AS PROVIDEDFOR BELOW.·ANY FACILITY OWNER/OPERATOR WHO IS SUBJECT TO THE SPCC RULE MUST COMPLY WITH THE REPORTING REQUIREMENTSFOUND IN 40 CFR 112.4. A DISCHARGE MUST BE REPORTED TO THE EPA REGIONAL ADMINISTRATOR (RA) WHEN THERE IS ADISCHARGE OF:··MORE THAN 1,000 GALLONS OF OIL IN A SINGLE DISCHARGE TO NAVIGABLE WATERS OR ADJOINING SHORELINES,··MORE THAN 42 GALLONS OF OIL IN EACH OF TWO DISCHARGES TO NAVIGABLE WATERS OR ADJOINING SHORELINES OCCURRINGWITHIN ANY TWELVE-MONTH PERIOD.·IF A DOMINION REPRESENTATIVE CANNOT BE PROMPTLY CONTACTED AND THE SPILL HAS IMPACTED WATER, THE PERSONDISCOVERING THE SPILL OR RELEASE WILL CONTACT THE NATIONAL RESPONSE CENTER AT 1-800-424-8802 AND REPORT THERELEASE. THAT PERSON WILL CONTINUE CALLING DOMINION UNTIL A REPRESENTATIVE IS REACHED.BMP INSTALLATION AND REMOVAL SEQUENCECONSTRUCTION MUST BE IN ACCORDANCE WITH THE FOLLOWING SEQUENCE. THIS SEQUENCE IS DESIGNED TO MINIMIZE SOIL EROSIONAND SEDIMENTATION. THE CONTRACTOR MAY DEVIATE SLIGHTLY FROM THE STAGING OF PERMANENT SITE IMPROVEMENTS, BUT NODEVIATION FROM THE RELATIVE ORDER OF EROSION AND SEDIMENTATION CONTROL MEASURES WILL BE ALLOWED.THE STAGING OF EARTHMOVING ACTIVITIES FOR THIS PROJECT IS A GENERAL DESCRIPTION OF THE WORK REQUIRED. ALL WORK SHALLBE COMPLETED IN ACCORDANCE WITH COMPANY STANDARDS, THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITYREGULATIONS AND ALL OTHER APPLICABLE FEDERAL, STATE OR LOCAL REQUIREMENTS.THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN INCLUDING THE SOIL EROSION CONTROL DRAWINGS AND NARRATIVESHALL BE AVAILABLE ON SITE AT ALL TIMES DURING EARTH DISTURBANCE.1.STAKE AND/OR FLAG ALL LIMITS OF DISTURBANCE FOR CONSTRUCTION ACTIVITIES, CLEARLY IDENTIFYING WETLAND AND STREAMEDGES. INSTALL SIGNS TO DESIGNATE THE AREA TO IDENTIFY IMPORTANT PROJECT ATTRIBUTES SUCH AS WETLANDSTREAMBOUNDS, EXCLUSION AREAS ETC.2.INSTALL ROCK CONSTRUCTION ENTRANCES IMMEDIATELY BEFORE INITIAL DISTURBANCES. THE ROCK CONSTRUCTIONENTRANCES TO BE UNDERLAIN BY FILTER FABRIC. ALL CONSTRUCTION TRAFFIC SHOULD USE ONLY ROCK CONSTRUCTIONENTRANCE FOR INGRESS AND EGRESS. ALL MUD OR SEDIMENT TRACKED ONTO THE EXISTING ROADWAY SHALL BE REMOVED BYTHE CONTRACTOR AS NECESSARY.3.ESC MEASURES INSTALLED WITHIN THE FOOTPRINT OF THE PIPE INSTALLATION SHALL REMAIN IN PLACE (AS PRACTICABLE)DURING THE TRENCHING AND PIPE INSTALLATION. MEASURES SHALL BE REMOVED TO ALLOW FOR PIPE INSTALLATION ACTIVITIESAND REPLACED AS SOON AS POSSIBLE. MAINTAIN ESC MEASURES PER DETAIL REQUIREMENTS.4.INSTALL SILT FENCE AND COMPOST FILTER SOCKS AS NECESSARY ALONG THE ACCESS ROADS TO PREVENT SEDIMENT LADENRUNOFF FROM ENTERING DOWNSTREAM WATER BODIES. MAINTAIN THE ACCESS ROADS AS REQUIRED, ASSOCIATED DITCHES,AND NECESSARY OUTLET PROTECTION.5.PRIOR TO AND SIMULTANEOUS WITH GRADING AND EXCAVATION, INSTALL REMAINING EROSION CONTROL DEVICES (ECD) SHOWNON THE PLANS WITHIN THE L.O.D.6.COMMENCE GRADING AND ASSOCIATED CUT AND FILL SLOPES. THE EARTH MOVING ACTIVITY SHALL BEGIN IN AREA OF CUT SO THATTHE CUTS CAN BE PLACED IN AREAS OF FILL. REMOVE TOPSOIL FROM AREAS TO RECEIVE FILL PRIOR TO FILLING.7.FINALIZE UTILITY INSTALLATION AND ROADWAY GRADES AND PLACE TOPSOIL ON THE CUT AND FILL AREAS. STABILIZE CUT ANDFILL SLOPES, AFTER PLACEMENT OF STOCKPILED TOPSOIL ON EXCAVATED SLOPES, AND AS DIRECTED.8.RE-DISTRIBUTION OF WET SEDIMENT FROM DEVICES AND FACILITIES SHALL ONLY BE PERMITTED UPHILL OF AN EFFECTIVESEDIMENT CONTROL DEVICE OR FACILITY. SEDIMENT LADEN RUNOFF SHALL NOT BE ALLOWED TO FLOW DIRECTLY INTO WATERBODIES.9.ANY EXPOSED TOPSOIL PILES SHOULD BE STABILIZED & SEEDED PER THE PERMIT REGULATIONS, AND BY TABLES SHOWN ON THEAPPROVED EROSION CONTROL PLANS AND MULCHED AS SPECIFIED BY THE PROJECT OWNER.10.UPON MINIMUM 80% UNIFORM PERENNIAL VEGETATIVE GROWTH, REMOVE TEMPORARY SEDIMENT CONTROLS. REMOVEACCUMULATED SEDIMENTS WITHIN THE TRAPS, RE-GRADE TRAPS TO FINAL CONTOURS. STABILIZE SITE PER THE PLANS.EROSION AND SEDIMENT CONTROL DETAIL NOTES1.THE DETAILS ON EROSION AND SEDIMENT CONTROL DETAIL SHEETS 1 THROUGH 3 CORRESPOND TO E&S CONTROL MEASURESSPECIFICALLY IDENTIFIED ON THE E&SC PLAN. DETAILS ON SHEET 4 CORRESPONDS TO E&S CONTROL MEASURES THAT WHILE NOTSPECIFICALLY IDENTIFIED ON THE E&SC PLANS, COULD POTENTIALLY BE REQUIRED.·SOIL STABILIZATION SHALL BE ACHIEVED ON ANY AREA OF THE SITE WHERE LAND-DISTURBING ACTIVITIES HAVETEMPORARILY OR PERMANENTLY CEASED ACCORDING TO THE FOLLOWING SCHEDULE:··ALL PERIMETER DIKES, SWALES DITCHES, PERIMETER SLOPES AND SLOPES STEEPER THAN 3 HORIZONTAL TO 1VERTICAL (3:1) SHALL BE PROVIDED TEMPORARY OR PERMANENT STABILIZATION WITH GROUND COVER AS SOON ASPRACTICABLE BUT IN ANY EVENT WITHIN 7 CALENDAR DAYS FROM THE LAST LAND DISTURBING ACTIVITY.··ALL OTHER DISTURBED AREAS SHALL BE PROVIDED TEMPORARY OR PERMANENT STABILIZATION WITH GROUND COVERAS SOON AS PRACTICABLE BUT IN ANY EVENT WITHIN 14 CALENDAR DAYS FROM THE LAST LAND DISTURBING ACTIVITY.·CONDITIONS - IN MEETING THE STABILIZATION REQUIREMENTS ABOVE, THE FOLLOWING CONDITIONS OR EXEMPTIONSSHALL APPLY.··EXTENSIONS OF TIME MAY BE APPROVED BY THE PERMITTING AUTHORITY BASED ON WEATHER OR OTHERSITE-SPECIFIC CONDITIONS THAT MAKE COMPLIANCE IMPRACTICABLE.··ALL SLOPES 50' IN LENGTH OR GREATER SHALL APPLY THE GROUND COVER WITHIN 7 DAYS EXCEPT WHEN THE SLOPEIS FLATTER THAN 4:1. SLOPES LESS THAN 50' SHALL APPLY GROUND COVER WITHIN 14 DAYS EXCEPT WHEN SLOPESARE STEEPER THAN 3:1, THE 7-DAY REQUIREMENT APPLIES.··ANY SLOPED AREA FLATTER THAN 4:1 SHALL BE EXEMPT FROM THE 7-DAY GROUND COVER REQUIREMENT.··SLOPES 10' OR LESS SHALL BE EXEMPT FROM THE 7-DAY GROUND COVER REQUIREMENT EXCEPT WHEN THE SLOPE ISSTEEPER THAN 2:1.··ALTHOUGH STABILIZATION IS USUALLY SPECIFIED AS GROUND COVER, OTHER METHODS, SUCH AS CHEMICALSTABILIZATION, MAY BE ALLOWED ON A CASE-BY-CASE BASIS··FOR PORTIONS OF PROJECTS WITHIN THE SEDIMENT CONTROL COMMISSION-DEFINED "HIGH QUALITY WATER ZONE"(15A NCAC 04A. 0105), STABILIZATION WITH GROUND COVER SHALL BE ACHIEVED AS SOON AS PRACTICABLE BUT IN ANYEVENT ON ALL AREAS OF THE SITE WITHIN 7 CALENDAR DAYS FROM THE LAST LAND DISTURBING ACT.··PORTIONS OF THE SITE THAT ARE LOWER IN ELEVATION THAN ADJACENT DISCHARGE LOCATIONS AND ARE NOTEXPECTED TO DISCHARGE DURING CONSTRUCTION MAY BE EXEMPT FROM THE TEMPORARY GROUND COVERREQUIREMENTS IF IDENTIFIED ON THE APPROVED E&SC PLAN OR ADDED BY THE PERMITTING AUTHORITY.GENERAL PIPELINE CONSTRUCTIONPIPELINE CONSTRUCTION WORKSPACE REQUIREMENTS ARE A FUNCTION OF PIPE DIAMETER, EQUIPMENT SIZE, TOPOGRAPHY, GEOLOGICALROCK FORMATIONS, LOCATION OF CONSTRUCTION SUCH AS AT ROAD CROSSINGS OR RIVER CROSSINGS, PIPELINE CROSSOVERS, METHODS OFCONSTRUCTION SUCH AS BORING OR OPEN-CUT CONSTRUCTION, OR EXISTING SOIL CONDITIONS ENCOUNTERED DURING CONSTRUCTION. ASTHE DIAMETER OF THE PIPELINE BEING INSTALLED INCREASES, SO DOES THE DEPTH OF TRENCH, EXCAVATED SPOIL MATERIAL, EQUIPMENT SIZE,AND ULTIMATELY THE AMOUNT OF CONSTRUCTION WORK SPACE THAT WILL BE REQUIRED TO CONSTRUCT A PROJECT. ALL WORKSPACELOCATIONS FOR A GIVEN PROJECT WILL BE SHOWN ON THE CONSTRUCTION ALIGNMENT SHEETS.ADDITIONAL CONSTRUCTION RIGHT-OF-WAY (ROW) MAY BE REQUIRED AT SPECIFIC LOCATIONS INCLUDING, BUT NOT LIMITED TO, STEEP SIDEOR VERTICAL SLOPES, ROAD CROSSINGS, PIPELINE CROSSOVERS, AREAS REQUIRING SUPPLEMENTAL TOPSOIL SEGREGATION, AND STAGINGAREAS ASSOCIATED WITH WETLAND AND WATERBODY CROSSINGS.ALL CONSTRUCTION ACTIVITIES, INCLUDING STAGING AREAS AND ADDITIONAL SPOIL STORAGE AREAS, ARE RESTRICTED TO THE CONSTRUCTIONROW LIMITS IDENTIFIED ON THE CONSTRUCTION ALIGNMENT SHEETS, EXCEPT FOR SPECIFIC ACTIVITIES IN LIMITED, NON-WETLAND, ANDNON-RIPARIAN AREAS THAT ARE ALLOWED BY THE FERC PLAN AND PROCEDURES (I.E., SLOPE BREAKERS, ENERGY-DISSIPATING DEVICES,DEWATERING STRUCTURES, AND DRAIN TILE SYSTEM REPAIRS). USE OF THESE LIMITED AREAS IS SUBJECT TO LANDOWNER OR LANDMANAGEMENT AGENCY APPROVAL AND COMPLIANCE WITH ALL APPLICABLE SURVEY, PERMIT, AND REPORTING REQUIREMENTS; THEREFORE,PRIOR DOMINION ENERGY TRANSMISSION INC. (DETI) APPROVAL IS REQUIRED TO USE THESE AREAS. IN SOME CASES, FEDERAL, STATE, ANDLOCAL PERMITS AND AUTHORIZATIONS MAY REQUIRE ADDITIONAL APPROVALS.CROSS-COUNTRY PIPELINE CONSTRUCTION TYPICALLY PROCEEDS IN ASSEMBLY LINE FASHION, WITH MULTIPLE STAGES OF CONSTRUCTIONOCCURRING SIMULTANEOUSLY AT DIFFERENT LOCATIONS TO MINIMIZE THE TIME NEEDED TO COMPLETE THE PROJECT. THE STAGES OFCONSTRUCTION INCLUDE: SURVEY AND FLAGGING, CLEARING AND MOWING, GRUBBING AND GRADING, TRENCHING, PIPE ASSEMBLY(INCLUDING STRINGING, BENDING, WELDING, TESTING, COATING, AND LOWERING-IN), BACKFILLING, HYDROSTATIC TESTING, FINAL GRADING,AND RESTORATION. EROSION AND SEDIMENT CONTROL (ESC) MEASURES TO BE UTILIZED ALONG THE PIPELINE ALIGNMENT ARE DEPICTED ONTHE CONSTRUCTION ALIGNMENT SHEETS.SITE PREPARATION1.SURVEY AND FLAG THE CONSTRUCTION ROW AND MARK ENVIRONMENTALLY SENSITIVE AREAS.2.INSTALL ROCK CONSTRUCTION ENTRANCES.3.INSTALL SAFETY FENCES PRIOR TO ESC INSTALLATION.4.CONDUCT INITIAL CLEARING, LIMITED TO THAT NECESSARY TO INSTALL TEMPORARY SEDIMENT BARRIERS.5.INSTALL PERIMETER ESCS PRIOR TO ANY BULK EARTH-MOVING ACTIVITY (ROAD GRADING, ROAD USE, LOG SKIDDING, ETC.).6.CONDUCT PROGRESSIVE CLEARING WITH INSTALLATION OF TEMPORARY SEDIMENT BARRIERS AND TEMPORARY EQUIPMENT BRIDGESKEEPING PACE WITH CLEARING.7.MODIFY ACCESS ROADS BY GRADING AND INSTALLING STONE WHERE NEEDED.8.GRADE THE ROW AND SEGREGATE TOPSOIL WHERE NECESSARY.9.INSTALL TEMPORARY SLOPE BREAKERS, ALSO REFERRED TO AS TEMPORARY ROW DIVERSIONS OR WATER BARS, AS NEEDED TO REDUCERUNOFF VELOCITY AND DIVERT WATER OFF THE CONSTRUCTION ROW.10.CONSTRUCT SOIL DIVERSION BERM ON DOWNSLOPE OF ROW WHERE NOTED ON PLANS. BERM IS NECESSARY IN LOCATIONS WHEREDRAINAGE PATTERN WOULD CAUSE RUNOFF TO DRAIN ACROSS THE ROW AND WILL SERVE TO DIRECT THE RUNOFF TO THE WATERBAROUTLETS.PIPE INSTALLATION11.EXCAVATE TRENCH TO ACCOMMODATE NEW PIPELINE SEGMENT.12.STRING PIPE, BEND THE PIPE JOINTS.13.WELD THE PIPE, INSPECT WELDS.14.LOWER THE PIPE INTO THE TRENCH.15.INSTALL PERMANENT TRENCH PLUGS.16.BACKFILL THE TRENCH.17.INSTALL HYDROSTATIC TEST DEWATERING STRUCTURES.18.HYDROSTATICALLY TEST THE PIPE AND DEWATER.19.BRING THE PIPELINE TO GAS SERVICE.20.FINAL GRADE ROW AND TEMPORARY WORKSPACES TO ORIGINAL CONTOURS TO THE EXTENT PRACTICABLE.21.INSTALL PERMANENT INTERCEPTOR DIKES.22.REPLACE SEGREGATED TOPSOIL.RESTORATION23.CONDUCT ROW RESTORATION AND CLEANUP. AS SOON AS SLOPES, CHANNELS, DITCHES, AND OTHER DISTURBED AREAS REACH FINALGRADE, THEY WILL BE STABILIZED WITHIN THE TIMEFRAME SPECIFIED.24.APPLY SOIL AMENDMENTS, PERMANENT SEED, MULCH, AND/OR EROSION CONTROL FABRIC.25.RESTORE TEMPORARY ACCESS ROADS OR ANY PAVED SURFACES TO ORIGINAL CONDITION.26.REMOVE TEMPORARY SEDIMENT BARRIERS FROM AN AREA WHEN REPLACED BY PERMANENT EROSION CONTROL MEASURES OR WHENTHE AREA HAS BEEN SUCCESSFULLY RESTORED TO UNIFORM PERENNIAL VEGETATION. TEMPORARY EROSION CONTROL BMPS WILL NOT BEREMOVED UNTIL INSPECTION BY THE EI (EI) TO CONFIRM SITE STABILIZATION.27.ENGAGE A QUALIFIED DRAIN TILE SPECIALIST, AS NEEDED, TO CONDUCT OR MONITOR REPAIRS TO DRAIN TILE SYSTEMS AFFECTED BYCONSTRUCTION.GENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.--ISSUED FOR PERMITTINGJR03/09./20170APP. 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, LLCAS SHOWN1/19/2018SR1/9/2018CM69 OF 10ACP\North Carolina\DetailsEROSION AND SEDIMENT CONTROL DETAILSATLANTIC COAST PIPELINENCSEAL--ISSUED IN RESPONSE to NCDEQ COMMENTSEB08/01/171--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017CM09/21/172--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM SEPTEMBER 21, 2017)CM10/06/20173--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 06, 2017)CM10/20/20174--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON NOVEMBER 6, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 20, 2017)CM12/15/20175--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON JANUARY 4, 2018 (SUPERCEEDS REVISIONS FROM DECEMBER 15, 2017)CM1/19/20186
ETLAND CROSSINGPROCEDURES USED TO INSTALL A PIPELINE ACROSS WETLANDS VARY DEPENDING ON THE LEVEL OF SOIL STABILITY AND SATURATION ENCOUNTERED DURINGCONSTRUCTION. DETI WILL COMPLY WITH USACE PERMIT TERMS AND CONDITIONS. IT WILL ASSEMBLE THE PIPELINE IN AN UPLAND AREA UNLESS THEWETLAND IS DRY ENOUGH TO ADEQUATELY SUPPORT SKIDS AND PIPE. DETI WILL USE “PUSH-PULL” OR “FLOAT” TECHNIQUES TO PLACE THE PIPE IN THE TRENCHWHERE WATER AND OTHER SITE CONDITIONS ALLOW.THE FOLLOWING BEST MANAGEMENT PRACTICES (BMPS) ARE TO BE EMPLOYED DURING STANDARD WETLAND CROSSINGS:1.ASSEMBLE THE PIPELINE IN AN UPLAND AREA UNLESS THE WETLAND IS DRY ENOUGH TO ADEQUATELY SUPPORT SKIDS AND PIPE.2.DO NOT USE ROCK, SOIL IMPORTED FROM OUTSIDE THE WETLAND, TREE STUMPS, OR BRUSH RIPRAP TO STABILIZE THE ROW.3.PERFORM TOPSOIL SEGREGATION, INCLUDING SEGREGATING THE SURFICIAL 12 INCHES OF TOPSOIL FROM THE AREA DISTURBED BY TRENCHING, EXCEPT INAREAS WHERE STANDING WATER IS PRESENT OR SOILS ARE SATURATED. IMMEDIATELY AFTER BACKFILLING IS COMPLETE, RESTORE THE SEGREGATEDTOPSOIL TO ITS ORIGINAL LOCATION.4.IF REQUIRED, DEWATERING SHOULD BE CONDUCTED AS DESCRIBED BELOW.5.MINIMIZE THE LENGTH OF TIME THAT TOPSOIL IS SEGREGATED AND THE TRENCH IS OPEN. DO NOT TRENCH THE WETLAND UNTIL THE PIPELINE IS ASSEMBLEDAND READY FOR LOWERING-IN.6.INSTALL PERMANENT TRENCH BREAKERS AT THE WETLAND BOUNDARIES AND/OR SEAL THE TRENCH BOTTOM AS NECESSARY TO MAINTAIN THE ORIGINALWETLAND HYDROLOGY AT LOCATIONS WHERE THE PIPELINE TRENCH MAY DRAIN A WETLAND.7.INSTALL A PERMANENT SLOPE BREAKER AND A TRENCH BREAKER AT THE BASE OF SLOPES NEAR THE BOUNDARY BETWEEN THE WETLAND AND ADJACENTUPLAND AREAS FOR EACH WETLAND CROSSED.8.INSTALL A PERMANENT SLOPE BREAKER ACROSS THE CONSTRUCTION ROW AT THE BASE OF SLOPES GREATER THAN 5 PERCENT WHERE THE BASE OF THESLOPE IS LESS THAN 50 FEET FROM THE WETLAND, OR AS NEEDED TO PREVENT SEDIMENT TRANSPORT INTO THE WETLAND. IN SOME AREAS, AN EARTHENBERM MAY BE SUITABLE AS A SEDIMENT BARRIER ADJACENT TO THE WETLAND.9.WHEN REQUIRED, ADDITIONAL FILL MATERIAL IMPORTED FROM OFF THE ROW MUST BE APPROVED BY THE EI.10.PRE-CONSTRUCTION WETLAND CONTOURS AND FLOW REGIMES WILL BE RESTORED TO THE EXTENT PRACTICAL.WETLAND CLEANUP AND RESTORATION11.FOR EACH WETLAND CROSSED, DETI WILL INSTALL A TRENCH BREAKER AT THE BASE OF SLOPES NEAR THE BOUNDARY BETWEEN THE WETLAND ANDADJACENT UPLAND AREAS. IT WILL INSTALL A PERMANENT SLOPE BREAKER ACROSS THE CONSTRUCTION ROW AT THE BASE OF SLOPES GREATER THAN 5PERCENT WHERE THE BASE OF THE SLOPE IS LESS THAN 50 FEET FROM THE WETLAND, OR AS NEEDED TO PREVENT SEDIMENT TRANSPORT INTO THEWETLAND. IN SOME AREAS, AN EARTHEN BERM MAY BE SUITABLE AS A SEDIMENT BARRIER ADJACENT TO THE WETLAND.12.RESTORE PRE-CONSTRUCTION WETLAND CONTOURS TO MAINTAIN THE WETLAND HYDROLOGY.13.REVEGETATION AND PERMANENT ROW MAINTENANCE PROCEDURES AS WELL AS THE USE OF LIME, MULCH, OR FERTILIZER IN WETLAND AREAS ISADDRESSED IN THE FERC RESTORATION AND REHABILITATION PLAN.14.DETI WILL NOT USE HERBICIDES OR PESTICIDES IN OR WITHIN 100 FEET OF A WETLAND, EXCEPT AS ALLOWED BY THE APPROPRIATE FEDERAL OR STATEAGENCY.15.REMOVE PROJECT-RELATED MATERIAL USED TO SUPPORT EQUIPMENT ON THE CONSTRUCTION ROW, INCLUDING TIMBER MATTING AND PREFABRICATEDEQUIPMENT MATS, UPON COMPLETION OF CONSTRUCTION.16.REMOVE TEMPORARY SEDIMENT BARRIERS LOCATED AT THE BOUNDARY BETWEEN WETLAND AND ADJACENT UPLAND AREAS AFTER UPLANDREVEGETATION AND STABILIZATION OF ADJACENT UPLAND AREAS ARE SUCCESSFUL.17.WITHIN 3 YEARS AFTER CONSTRUCTION, FILE A REPORT WITH FERC IDENTIFYING THE STATUS OF THE WETLAND REVEGETATION EFFORTS ANDDOCUMENTING SUCCESS.STREAM CROSSING18.THE TEMPORARY WATERWAY CROSSING WILL BE AT RIGHT ANGLES TO THE STREAM. WHERE APPROACH CONDITIONS DICTATE, THE CROSSING MAY VARY15 DEGREES FROM A LINE DRAWN PERPENDICULAR TO THE CENTER LINE OF THE STREAM AT THE INTENDED CROSSING LOCATION.19.EQUIPMENT BRIDGES MAY BE INSTALLED AND USED WHERE NEEDED TO ALLOW EQUIPMENT ACCESS ACROSS WATERBODIES. EQUIPMENT BRIDGES WILLBE ABLE TO WITHSTAND THE ANTICIPATED LOADING OF THE CONSTRUCTION TRAFFIC, HAVE ONE TRAFFIC LANE, AND HAVE THE MINIMUM WIDTH OF 12 FEETWITH A MAXIMUM WIDTH OF 20 FEET.20.PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN 7 DAYS AFTER FINAL GRADE IS REACHED ON ANYPORTION OF THE SITE. THE AREAS DISTURBED DURING INSTALLATION WILL BE STABILIZED WITHIN 7 DAYS OF THAT DISTURBANCE IN ACCORDANCE WITH NCDEQ REQUIREMENTS.21.INTERMITTENT AND PERENNIAL STREAMS WILL BE CROSSED USING PROPERLY DESIGNED AND CONSTRUCTED STRUCTURES INSTALLED AT RIGHT ANGLESTO THE ACCESS ROAD.22.STRUCTURES WILL NOT IMPEDE FISH PASSAGE OR STREAM FLOW.23.APPROACHES TO STREAM CROSSINGS WILL BE STABILIZED WITH GRAVEL, MULCH OR OTHER SUITABLE MATERIAL FOR A MINIMUM DISTANCE OF 50 FEETON EACH SIDE OF THE CROSSING, OR TO THE TOP OF THE GRADE THAT IS CONTRIBUTING SEDIMENT TO THE STREAM CROSSING.24.UNTIL THE EQUIPMENT BRIDGE IS INSTALLED, ONLY CLEARING EQUIPMENT AND EQUIPMENT NECESSARY FOR INSTALLATION OF EQUIPMENT BRIDGESMAY CROSS THE WATERBODY, AND THE NUMBER OF CROSSINGS WILL BE LIMITED TO ONE CROSSING PER PIECE OF EQUIPMENT, UNLESS OTHERWISEAUTHORIZED BY THE APPROPRIATE PERMITTING AGENCY. EI APPROVAL IS REQUIRED PRIOR TO EQUIPMENT CROSSING A WATERBODY WITHOUT ANEQUIPMENT BRIDGE.25.CONSTRUCT AND MAINTAIN EQUIPMENT BRIDGES THAT ALLOW UNRESTRICTED FLOW AND PREVENT SEDIMENT FROM ENTERING THE WATERBODY.26.DO NOT USE SOIL TO CONSTRUCT OR STABILIZE EQUIPMENT BRIDGES.27.DESIGN AND MAINTAIN EQUIPMENT BRIDGES TO PREVENT SEDIMENT FROM ENTERING THE WATERBODY.28.REMOVE TEMPORARY EQUIPMENT BRIDGES AS SOON AS PRACTICABLE AFTER SEEDING.29.IF THERE WILL BE MORE THAN 1 MONTH BETWEEN FINAL CLEANUP AND THE BEGINNING OF PERMANENT SEEDING AND REASONABLE ALTERNATIVEACCESS TO THE ROW IS AVAILABLE, REMOVE TEMPORARY EQUIPMENT BRIDGES AS SOON AS PRACTICABLE AFTER FINAL CLEANUP.SITE INSPECTION FREQUENCY FOR SENSITIVE AREASEROSION AND SEDIMENT CONTROL INSPECTIONS WILL BE IN ACCORDANCE WITH NC GUIDELINES. INSPECTIONS WILL BE PERFORMED AT LEAST ONCE PER 7CALENDAR DAYS AND WITHIN 24 HOURS OF A RAINFALL EVENT GREATER THAN 0.5 INCHES PER 24 HOUR PERIOD. THE DEPARTMENT OF ENERGY, MINING, ANDLAND RESOURCES (DEMLR) MONITORING FORM WILL BE USED TO DOCUMENT INSPECTIONS.TIMBER MATSDETI UTILIZES CONSTRUCTION TIMBER MATS TO PROVIDE ACCESS THROUGH AREAS SUCH AS WETLANDS AND WATERBODIES, SOME AGRICULTURAL FIELDS,STEEP SLOPES, AND OTHER AREAS AS DETERMINED BY THE CONSTRUCTION SUPERVISOR. THIS PRACTICE REDUCES SOIL COMPACTION AND PROVIDES A STABLETRAVEL LANE FOR CONTRACTORS ALONG THE PROJECT ROW, THUS MINIMIZING LAND DISTURBANCE. THE MATERIALS USED TO CONSTRUCT THE TIMBERMATTING WILL BE ABLE TO WITHSTAND THE ANTICIPATED LOADING OF THE CONSTRUCTION TRAFFIC. THE TIMBER MATS OVER WATERBODY CROSSINGS WILLBE CLEANED AT THE END OF EACH DAY AND WHERE EXCESS ACCUMULATION OF SEDIMENT THE TIMBER MATS WILL BE CLEANED OFF THROUGHOUT EACH DAY.THE USE OF CONSTRUCTION TIMBER MAY GENERALLY NOT CONSTITUTE SOIL DISTURBANCE OR A CHANGE IN HYDROLOGY. THEREFORE, THE INSTALLATION OFTIMBER MAT ACCESS ROADS AND WORK PADS IS NOT CONSIDERED A REGULATED LAND-DISTURBING ACTIVITY.TRENCH PLUGS/BREAKERSTRENCH PLUGS WILL BE USED AT ALL STREAM, RIVER, WETLAND OR OTHER WATERBODY CROSSINGS, AS NECESSARY, TO PREVENT DIVERSION OF WATER INTOUPLAND PORTIONS OF THE PIPELINE TRENCH AND TO KEEP ANY ACCUMULATED TRENCH WATER OUT OF THE WATERBODY. TOPSOIL WILL NOT BE USED TO FILLSACKS FOR TRENCH PLUGS. TRENCH PLUGS WILL BE OF SUFFICIENT SIZE TO WITHSTAND UPSLOPE WATER PRESSURE.30.PERMANENT SACKS OF SUBSOIL OR SAND, POLYURETHANE FOAM, BENTONITE CLAY, OR POSSIBLY CEMENT (IN AREAS OF STEEP TERRAIN) BAGS INSTALLEDAROUND THE PIPE WILL REMAIN IN THE TRENCH TO PREVENT SUBSURFACE CHANNELING OF WATER ALONG THE TRENCH. TOPSOIL WILL NOT BE USED INTRENCH BREAKERS. TRENCH BREAKERS ARE NOT EMPLOYED IN TRENCHLESS PIPELINE CONSTRUCTION SUCH AS HORIZONTAL DIRECTIONAL DRILL (HDD) ORFOR NON-LINEAR FACILITIES (E.G., COMPRESSOR STATIONS, M&R STATIONS).31.THE NEED FOR AND SPACING OF TRENCH BREAKERS WILL BE INDICATED ON THE CONSTRUCTION ALIGNMENT SHEETS. TRENCH BREAKERS WILL BEINSTALLED AT THE SAME SPACING AS AND UPSLOPE OF PERMANENT SLOPE BREAKERS UNLESS DETERMINED OTHERWISE BY THE CERTIFYING PROFESSIONALENGINEER.32.IN AGRICULTURAL FIELDS AND RESIDENTIAL AREAS WHERE SLOPE BREAKERS ARE NOT TYPICALLY REQUIRED, TRENCH BREAKERS WILL BE INSTALLED ATTHE SAME SPACING AS IF PERMANENT SLOPE BREAKERS WERE REQUIRED. IN AGRICULTURAL LANDS, TRENCH BREAKERS WILL BE INSTALLED TO A DEPTHTHAT DOES NOT ENCROACH INTO THE TYPICAL PLOW ZONE.PERMANENT TRENCH BREAKERS WILL BE INSTALLED AT THE BASE OF SLOPES GREATER THAN 5 PERCENT WHERE THE BASE OF THE SLOPE IS LESS THAN 50 FEETFROM A WATERBODY OR WETLAND AND WHERE NEEDED TO AVOID DRAINING A WATERBODY OR WETLAND.TURBIDITY CURTAINSTURBIDITY CURTAINS WILL BE INSTALLED DOWNSTREAM OF THE STREAM CROSSING AS NECESSARY TO MINIMIZE SUSPENDED SOLIDS IN THE WATER.1.A TYPE I OR II CURTAIN WILL BE SELECTED BASED ON THE FLOW CONDITION. IN MOST SITUATIONS, TURBIDITY CURTAINS SHOULD NOT BE INSTALLEDACROSS CHANNEL FLOWS.2.TURBIDITY CURTAINS WILL EXTEND THE ENTIRE DEPTH OF THE WATERCOURSE WHEN THE WATERCOURSE IS NOT SUBJECT TO TIDAL ACTION AND/ORSIGNIFICANT WIND AND WAVE FORCES.3.IN TIDAL AND/OR WIND AND WAVE ACTION SITUATIONS, THE CURTAIN WILL NEVER TOUCH THE BOTTOM. THE CURTAIN WILL HAVE A MINIMUM 1-FOOTGAP BETWEEN THE WEIGHTED LOWER END OF THE SKIRT AND THE BOTTOM AT “MEAN” LOW WATER.4.IN TIDAL AND/OR WIND AND WAVE ACTION SITUATIONS, THE CURTAIN DEPTH WILL NOT BE LOWER THAN 10 TO12 FEET BELOW THE SURFACE.5.TURBIDITY CURTAINS WILL BE LOCATED PARALLEL TO THE DIRECTION OF FLOW OF A MOVING WATERBODY.6.A MINIMUM CONTINUOUS SPAN OF 50 FEET BETWEEN JOINTS AND A MAXIMUM SPAN OF 100 FEET BETWEEN JOINTS (ANCHOR OR STAKE LOCATIONS) IS AGOOD RULE OF THUMB.7.THE ENDS OF THE CURTAIN SHOULD EXTEND WELL UP TO THE SHORELINE AND SECURED FIRMLY TO THE SHORELINE, PREFERABLY TO RIGID BODIES SUCHAS TREES OR PILES.8.WHEN THERE IS SPECIFIC NEED TO EXTEND THE CURTAIN TO THE BOTTOM OF THE WATERCOURSE IN TIDAL OR MOVING WATER CONDITIONS, A HEAVYWOVEN PERVIOUS FILTER FABRIC MAY BE SUBSTITUTED FOR THE NORMALLY RECOMMENDED IMPERVIOUS GEOTEXTILE.9.BARRIERS WILL BE OF BRIGHT COLORS TO ATTRACT THE ATTENTION OF NEARBY BOATERS.10.SEAMS IN THE FABRIC WILL BE EITHER VULCANIZED WELDED OR SEWN AND WILL DEVELOP THE FULL STRENGTH OF THE FABRIC.11.THE LOAD LINES WILL BE FABRICATED INTO THE BOTTOM OF ALL FLOATING CURTAINS. TYPE-II AND III MUST HAVE LOAD LINES ALSO FABRICATED INTO THETOP OF THE FABRIC.12.EXTERNAL ANCHORS MAY CONSIST OF WOODEN OR METAL STAKES FOR TYPE I CURTAINS; TYPE-II AND III SHOULD USE BOTTOM ANCHORS.13.ONCE THE CURTAIN IS NO LONGER REQUIRED, AS DETERMINED BY THE EI, THE CURTAIN AND RELATED COMPONENTS WILL BE REMOVED IN SUCH AMANNER AS TO MINIMIZE TURBIDITY. SEDIMENT MAY BE REMOVED AND THE ORIGINAL DEPTH RESTORED. ANY SPOILS WILL BE TAKEN TO AN UPLANDAREA AND STABILIZED.TRENCH DEWATERINGDETI UTILIZES GEOTEXTILE BAGS FOR DEWATERING AND VELOCITY REDUCTION ON A MAJORITY OF PIPELINE CONSTRUCTION PROJECTS. THE PURPOSE,DEFINITION, CONDITIONS OF APPLICATION AND PLANNING CONSIDERATIONS ARE IDENTICAL. DESIGN CRITERIA AND SPECIFICATIONS VARY BY DEWATERINGBAG MANUFACTURER; A VARIETY OF GEOTEXTILE DEWATERING BAG PRODUCTS ARE AVAILABLE ON THE MARKET. THE MANUFACTURERS' GUIDANCE ON THEUSE, DESIGN, SIZING, MAINTENANCE, AND APPLICATION OF THE GEOTEXTILE DEWATERING BAG WILL BE FOLLOWED.14.CONDUCT DEWATERING (ON OR OFF THE CONSTRUCTION ROW) IN SUCH A MANNER THAT DOES NOT CAUSE EROSION AND DOES NOT RESULT INSILT-LADEN WATER FLOWING INTO ANY WATERBODY, WETLAND, OR OFF-SITE PROPERTY.15.ELEVATE AND SCREEN THE INTAKE OF EACH HOSE USED TO WITHDRAW THE WATER FROM THE TRENCH TO MINIMIZE PUMPING OF DEPOSITED SEDIMENTS.16.A DEWATERING BAG MAY NOT BE NEEDED IF THERE IS A WELL-STABILIZED, VEGETATED AREA ON SITE TO WHICH WATER CAN BE DISCHARGED. THE AREAMUST BE STABILIZED SO THAT IT CAN FILTER SEDIMENT AND AT THE SAME TIME WITHSTAND THE VELOCITY OF THE DISCHARGED WATER WITHOUTERODING. A MINIMUM FILTERING LENGTH OF 75 FEET MUST BE AVAILABLE IN ORDER FOR SUCH A METHOD TO BE FEASIBLE.17.REMOVE DEWATERING STRUCTURES AS SOON AS PRACTICABLE AFTER THE COMPLETION OF DEWATERING ACTIVITIES, IF SEDIMENT BUILD-UP PREVENTSTHE BAG FROM FUNCTIONING PROPERLY, OR THE BAG BECOMES HALF FULL OF SEDIMENT, DISCARD AND REPLACE WITH A NEW BAG.18.FILTER BAG WILL BE DISPOSED OF AS SOLID WASTE.WATERBARS (TEMPORARY/PERMANENT)19.TEMPORARY WATERBARS WILL BE INSTALLED PRIOR TO PIPELINE INSTALLATION.20.PERMANENT WATERBARS WILL BE INSTALLED AT THE COMPLETION OF PIPELINE INSTALLATION.21.WATERBARS WILL BE INSTALLED IN ACCORDANCE WITH NC EROSION AND SEDIMENT CONTROL SPECIFICATIONS.STREAM BANK STABILIZATION AT PIPE COMPLETION22.EROSION CONTROL MATTING SHALL BE PLACED ON THE BANKS OF THE FLOWING STREAMS WHERE VEGETATION HAS BEEN REMOVED OR AS DIRECTED BYTHE EI.23.EROSION CONTROL MATTING SHALL MEET THE REQUIREMENTS SPECIFIED IN THE PLAN.24.STAPLES SHALL BE MADE OF AT LEAST 11 GAUGE WIRE, U-SHAPED WITH 6” LEGS AND A 1” CROWN. STAPLES SHALL BE DRIVEN INTO THE GROUND FOR THEFULL EFFECT OF THE STAPLE LEGS. ALTERNATIVELY, 1” DIA. WOODEN PEGS 6” LONG AND BEVELED MAY BE USED TO SECURE MATTING.25.MATTING SHALL BE INSTALLED PER MANUFACTURERS SPECIFICATIONS OR AS STATED BELOW:26.EXTEND TOP OF BLANKET 2 FEET PAST THE UPPER EDGE OF THE HIGH WATER MARK. IF A SLOPE BREAKER IS PRESENT, ON THE APPROACH SLOPE, BEGIN THEBLANKET ON THE UPHILL SIDE OF THE SLOPE BREAKER.27.INSTALL BLANKETS ACROSS THE SLOPE IN THE DIRECTION OF THE WATER FLOW.28.ANCHOR THE UPSTREAM EDGE OF THE BLANKET INTO THE SLOPE USING A 6” DEEP TRENCH, DOUBLE STAPLE EVERY 12” BEFORE BACKFILLING ANDCOMPACTING TRENCH.29.OVERLAP THE EDGES OF PARALLEL BLANKETS A MINIMUM OF 6”. PLACE THE UPPER BLANKET OVER THE LOWER BLANKET (SHINGLE STYLE) AND STAPLEEVERY 12” ALONG THE LENGTH OF THE EDGE. WHEN BLANKETS ENDS ARE ADJOINED, PLACE THE UPSTREAM BLANKET OVER THE DOWNSTREAM BLANKET(SHINGLE STYLE) AND STAPLE EVERY 12” ALONG THE LENGTH OF THE EDGE30.STAPLE DOWN THE CENTER OF THE BLANKET, THREE STAPLES IN EVERY SQUARE YARD.31.IN LIVESTOCK AREAS WHERE EROSION CONTROL MATTING IS APPLIED TO THE STREAMBANKS, FENCING WILL BE USED IF NECESSARY TO EXCLUDEDLIVESTOCK, WITH PERMISSION OF THE LANDOWNER.32.MONITOR WASHOUTS, STAPLE INTEGRITY OR MAT MOVEMENT, REPLACE OR REPAIR AS NECESSARY.33.INSTALLATION MAY BE USED AT THE DISCRETION OF THE EI AT SEVERELY SLOPING ROAD BANKS, BUT MAY ONLY BE INSTALLED A MAXIMUM OF ONEBLANKET WIDTH.DAM-AND-PUMP CROSSINGTHE DAM-AND-PUMP CROSSING METHOD IS PRESENTED AS AN ALTERNATIVE DRY CROSSING PROCEDURE TO THE FLUME CROSSING (IN LIMITEDCASES, IT MAY BE USED IN COMBINATION WITH A FLUME CROSSING). THE DAM-AND-PUMP METHOD IS ACCOMPLISHED BY UTILIZING PUMPS TOTRANSPORT STREAM FLOW ACROSS THE DISTURBED AREA. THIS METHOD INVOLVES PLACING SANDBAGS OR EQUIVALENT ACROSS THEEXISTING STREAM CHANNEL UPSTREAM FROM THE PROPOSED CROSSING TO STOP WATER FLOW AND DOWNSTREAM FROM THE CROSSING TOISOLATE THE WORK AREA. PUMPS ARE USED TO PUMP THE WATER ACROSS THE DISTURBED AREA AND BACK INTO THE STREAM FURTHERDOWNSTREAM.THE DAM-AND-PUMP PROCEDURE ALLOWS FOR MORE SPACE AND FLEXIBILITY DURING TRENCHING AND PIPE INSTALLATION, WHICH SHORTENSTHE DURATION OF TIME SPENT AT THE WATERBODY. THE DAM-AND-PUMP METHOD MAY BE USED FOR CROSSINGS OF WATERBODIES WHEREPUMPS CAN ADEQUATELY TRANSFER STREAM FLOW VOLUMES AROUND THE WORK AREA, AND WHERE THERE ARE NO CONCERNS ABOUTSENSITIVE SPECIES PASSAGE.1.THE DAM-AND-PUMP CROSSING METHOD WILL BE INSTALLED AS FOLLOWS:2.INSTALL AND PROPERLY SEAL SANDBAGS AT THE UPSTREAM AND DOWNSTREAM LOCATION OF THE CROSSING.3.CREATE AN IN-STREAM SUMP USING SANDBAGS IF A NATURAL SUMP IS UNAVAILABLE FOR THE INTAKE HOSE.4.INITIATE PUMPING OF THE STREAM AROUND THE WORK AREA PRIOR TO EXCAVATING THE TRENCH.5.MONITOR DAMS AND PUMPS AT ALL TIMES TO ENSURE PROPER OPERATION UNTIL THE WATERBODY CROSSING IS COMPLETED.6.REMOVE THE SANDBAG DAMS, PUMPS, AND HOSES AND RETURN NORMAL FLOW BACK TO THE WATERBODY FOLLOWING INSTALLATIONAND RESTORATION OF THE STREAMBED.7.IMPLEMENTATION OF THE DAM-AND-PUMP CROSSING METHOD WILL MEET THE FOLLOWING PERFORMANCE CRITERIA:8.USE SUFFICIENT PUMPS, INCLUDING ON-SITE BACKUP PUMPS, TO MAINTAIN DOWNSTREAM FLOWS.9.CONSTRUCT DAMS WITH MATERIALS THAT PREVENT SEDIMENT AND OTHER POLLUTANTS FROM ENTERING THE WATERBODY (E.G.,SANDBAGS OR CLEAN GRAVEL WITH PLASTIC LINER).10.SCREEN ALL INTAKE HOSES TO MINIMIZE THE ENTRAINMENT OF FISH AND OTHER AQUATIC LIFE.11.PREVENT STREAMBED SCOUR AT PUMP DISCHARGE.12.CONTINUOUSLY MONITOR THE DAM AND PUMPS TO ENSURE PROPER OPERATION THROUGHOUT THE WATERBODY CROSSING.WATER IMPOUNDMENTSDETI WILL UTILIZE ABOVEGROUND WATER IMPOUNDMENT STRUCTURES TO TEMPORARILY STORE WATER NEEDED FOR HYDROSTATIC TESTING.WATER FOR HYDROSTATIC TESTING WILL BE WITHDRAWN FROM ADJACENT SURFACE WATERS AND/OR MUNICIPAL SOURCES AND WILL BEPUMPED TO THE WATER IMPOUNDMENTS GRADUALLY OVER A 30- TO 90-DAY PERIOD WITHOUT IMPACTING DOWNSTREAM USERS OF WATER OREXCEEDING ALLOWABLE WATER WITHDRAWAL RATES. THE WATER IMPOUNDMENTS WILL BE CONSTRUCTED IN ATWS AND WILL BE CIRCULAR INCONFIGURATION WITH A DIAMETER OF APPROXIMATELY 190 FEET AND A HEIGHT OF APPROXIMATELY 15 FEET.OPEN-CUTTHE OPEN-CUT OR WET TRENCH CROSSING METHOD WILL INVOLVE TRENCHING THROUGH THE WATERBODY WHILE WATER CONTINUES TO FLOW THROUGH THE TRENCHING AREA.PRIOR TO INITIATING CONSTRUCTION ACROSS THE WATERBODY, THE CROSSING SECTION OF PIPELINE WILL BE FABRICATED (I.E., BENT, WELDED, AND COATED) IN ADJACENT ATWSAREAS. BACKHOE-TYPE EXCAVATORS WILL THEN BE USED TO EXCAVATE A TRENCH IN THE FLOWING WATERBODY FROM ONE OR BOTH BANKS OF THE WATERBODY. WHERE THEWATERBODY IS TOO WIDE TO EXCAVATE THE TRENCH FROM THE BANKS, EQUIPMENT MAY OPERATE FROM WITHIN THE WATERBODY WITH APPROVAL FROM THE APPROPRIATEREGULATORY AGENCIES. EQUIPMENT OPERATING WITHIN THE WATERBODY WILL BE LIMITED TO THAT NEEDED TO CONSTRUCT THE CROSSING. DURING THESE OPERATIONS, FLOWWILL BE MAINTAINED AT THE CROSSING AS SPECIFIED IN THE FERC PROCEDURES. TURBIDITY CURTAINS WILL BE INSTALLED DOWNSTREAM OF THE CROSSING AS NECESSARY TOMINIMIZE SUSPENDED SOLIDS IN THE WATER.1.DETI WILL ADHERE TO THE FOLLOWING CRITERIA FOR THE USE OF TURBIDITY CURTAIN:2.A TYPE I, II, OR III CURTAIN WILL BE SELECTED BASED ON THE FLOW CONDITION AT THE TIME OF THE CROSSING. IN MOST SITUATIONS, TURBIDITY CURTAINS SHOULD NOT BEINSTALLED ACROSS CHANNEL FLOWS.3.TURBIDITY CURTAINS WILL EXTEND THE ENTIRE DEPTH OF THE WATERCOURSE WHEN THE WATERCOURSE IS NOT SUBJECT TO TIDAL ACTION AND/OR SIGNIFICANT WIND ANDWAVE FORCES.4.IN TIDAL AND/OR WIND AND WAVE ACTION SITUATIONS, THE CURTAIN WILL NEVER TOUCH THE BOTTOM. THE CURTAIN WILL HAVE A MINIMUM 1-FOOT GAP BETWEEN THEWEIGHTED LOWER END OF THE SKIRT AND THE BOTTOM AT “MEAN” LOW WATER.5.IN TIDAL AND/OR WIND AND WAVE ACTION SITUATIONS, THE CURTAIN DEPTH WILL NOT BE LOWER THAN 10 TO12 FEET BELOW THE SURFACE.6.TURBIDITY CURTAINS WILL BE LOCATED PARALLEL TO THE DIRECTION OF FLOW OF A MOVING WATERBODY.7.A MINIMUM CONTINUOUS SPAN OF 50 FEET BETWEEN JOINTS AND A MAXIMUM SPAN OF 100 FEET BETWEEN JOINTS (ANCHOR OR STAKE LOCATIONS) IS A GOOD RULE OFTHUMB.8.THE ENDS OF THE CURTAIN SHOULD EXTEND WELL UP TO THE SHORELINE AND SECURED FIRMLY TO THE SHORELINE, PREFERABLY TO RIGID BODIES SUCH AS TREES ORPILES.9.WHEN THERE IS SPECIFIC NEED TO EXTEND THE CURTAIN TO THE BOTTOM OF THE WATERCOURSE IN TIDAL OR MOVING WATER CONDITIONS, A HEAVY WOVEN PERVIOUSFILTER FABRIC MAY BE SUBSTITUTED FOR THE NORMALLY RECOMMENDED IMPERVIOUS GEOTEXTILE.10.BARRIERS WILL BE OF BRIGHT COLORS TO ATTRACT THE ATTENTION OF NEARBY BOATERS.11.SEAMS IN THE FABRIC WILL BE EITHER VULCANIZED WELDED OR SEWN AND WILL DEVELOP THE FULL STRENGTH OF THE FABRIC.12.THE LOAD LINES WILL BE FABRICATED INTO THE BOTTOM OF ALL FLOATING CURTAINS. TYPE-II AND III MUST HAVE LOAD LINES ALSO FABRICATED INTO THE TOP OF THEFABRIC.13.EXTERNAL ANCHORS MAY CONSIST OF WOODEN OR METAL STAKES FOR TYPE I CURTAINS; TYPE-II AND III SHOULD USE BOTTOM ANCHORS.14.ONCE THE CURTAIN IS NO LONGER REQUIRED, AS DETERMINED BY THE EI, THE CURTAIN AND RELATED COMPONENTS WILL BE REMOVED IN SUCH A MANNER AS TO MINIMIZETURBIDITY. SEDIMENT MAY BE REMOVED AND THE ORIGINAL DEPTH RESTORED. ANY SPOILS WILL BE TAKEN TO AN UPLAND AREA AND STABILIZED.SPOIL EXCAVATED FROM THE TRENCH WILL BE PLACED ON THE BANK ABOVE THE HIGH WATER MARK (AT LEAST 10 FEET FROM THE EDGE OF THE WATER) OR PLACED ADJACENT TOTHE TRENCH IN THE STREAM (MAJOR WATERBODIES ONLY, IN ACCORDANCE WITH THE FERC PROCEDURES) FOR USE AS BACKFILL. A PREFABRICATED SEGMENT OF PIPELINE WILLTHEN BE PLACED INTO THE TRENCH USING SIDE-BOOM TRACTORS. CONCRETE COATING (INSTALLED IN UPLANDS IN PROJECT WORKSPACE) OR PIPELINE WEIGHTS WILL BEUTILIZED, AS NECESSARY, TO PROVIDE NEGATIVE BUOYANCY FOR THE PIPELINE. ONCE THE TRENCH IS BACKFILLED, THE BANKS WILL BE RESTORED AS NEAR AS PRACTICABLE TOPRE-CONSTRUCTION CONTOURS AND STABILIZED AS DESCRIBED ABOVE.THROUGHOUT THE CONSTRUCTION PROCESS, DETI WILL FOLLOW THE FERC PROCEDURES TO AVOID OR MINIMIZE IMPACTS ON WATER QUALITY. CONSTRUCTION ACTIVITIES WILLBE SCHEDULED SO THAT THE TRENCH IS NOT EXCAVATED ACROSS THE WATERBODY UNTIL IMMEDIATELY PRIOR TO PIPE LAYING ACTIVITIES. THE DURATION OF IN-STREAMCONSTRUCTION ACTIVITIES (EXCLUDING BLASTING, IF REQUIRED) WILL BE LIMITED TO 24-HOURS ACROSS MINOR WATERBODIES (THOSE 10 FEET IN WIDTH OR LESS) AND 48 HOURSACROSS INTERMEDIATE WATERBODIES (THOSE BETWEEN 10 AND 100 FEET IN WIDTH). SITE-SPECIFIC CROSSING DRAWINGS HAVE BEEN DEVELOPED FOR MAJOR WATERBODYCROSSINGS.FLUME CROSSINGTHE FLUME CROSSING METHOD UTILIZES A FLUME PIPE(S) TO TRANSPORT STREAM FLOW ACROSS THE DISTURBED AREA AND ALLOWS TRENCHING TO BE DONE INDRIER CONDITIONS. THE FLUME PIPE(S) INSTALLED ACROSS THE TRENCH WILL BE SIZED TO ACCOMMODATE ANTICIPATED STREAM FLOWS. FLUMES AREGENERALLY NOT RECOMMENDED FOR USE ON A WATERBODY WITH A BROAD UNCONFINED CHANNEL, UNSTABLE BANKS, A PERMEABLE SUBSTRATE, EXCESSIVESTREAM FLOW, OR WHERE THE INSTALLATION AND CONSTRUCTION OF THE FLUME CROSSING WILL ADVERSELY AFFECT THE BED OR BANKS OF THE STREAM.DETI IS REQUESTING A REVIEW OF A CASE BY CASE BASIS WITH THE DEQ FOR THE ABILITY TO UTILIZE THE DRY-DITCH STREAM CROSSING METHOD (FLUMECROSSING) FOR STREAMS THAT EXCEED THE 10 FEET WIDTH. UNDER CERTAIN FIELD CONDITIONS, FLUME CROSSING PROCEDURES ARE PREFERRED OVER DAMAND PUMP METHODS. THE FOLLOWING SCENARIOS TYPICALLY ENCOUNTERED DURING CONSTRUCTION MAKE THE FLUME METHOD A BETTER OPTION ANDREDUCE THE OVERALL POTENTIAL ENVIRONMENTAL IMPACT TO THE STREAM ITSELF: STREAMS WITH HIGH FLOW RATES, AND TERRAIN CONSTRAINTS.STREAMS WITH HIGHER FLOW RATES REQUIRE MORE AND LARGER PUMPS IN ORDER TO MAINTAIN ADEQUATE UPSTREAM TO DOWNSTREAM FLOW DURINGCONSTRUCTION. DUE TO LIMITATIONS PLACED ON PIPELINE CONSTRUCTION “LIMITS OF DISTURBANCE” VIA FERC REQUIREMENTS, MANY TIMES THERE IS NOTADEQUATE SPACE IN ORDER TO INSTALL MULTIPLE PUMPS AND BACKUP PUMPS IN CASE OF A POTENTIAL PRIMARY PUMP FAILURE. ADDITIONALLY, WHEN PUMPSARE UTILIZED, CREWS ARE REQUIRED TO MAINTAIN (FUEL, MONITOR) DAY AND NIGHT. BY INSTALLING A FLUME, THE CONSTRUCTION CREW IS ABLE TO MAINTAINADEQUATE FLOW RATES OF THE STREAM WHILE CONDUCTING THE CROSSING AND ELIMINATE THE NEED TO REFUEL AND MAINTAIN PUMPS OVERNIGHT.TERRAIN CAN BE A FACTOR ESPECIALLY WHEN THE AREA LEADING INTO AND GOING AWAY FROM THE STREAM CHANNEL IS STEEP. DEPENDING ON THE OVERALLGRADE OF THE SLOPE, INSTALLING PUMPS ON SLOPED TERRAIN SHOULD BE AVOIDED OR MAY NOT BE FEASIBLE. DURING THESE SITUATIONS, THE FLUMECROSSING METHOD IS PREFERRED. A FLUME CROSSING TYPICAL IS PROVIDED.THE FLUME WATERBODY CROSSING WILL BE INSTALLED AS FOLLOWS:1.INSTALL FLUME PIPE(S) AFTER BLASTING AND OTHER ROCK BREAKING MEASURES (IF REQUIRED), BUT BEFORE TRENCHING. THE FLUME PIPE CROSSINGWILL BE MADE OPERATIONAL PRIOR TO THE START OF CONSTRUCTION IN THE STREAM.2.PROPERLY ALIGN FLUME PIPE(S) TO PREVENT BANK EROSION AND STREAMBED SCOUR.3.A LARGE FLUME PIPE (OR CULVERT) OF AN ADEQUATE SIZE TO SUPPORT NORMAL WATER CHANNEL FLOW WILL THEN BE INSTALLED IN THE STREAM BEDACROSS THE PROPOSED PIPELINE TRENCH CENTERLINE.4.SAND BAGS, COARSE AGGREGATE (MINIMUM SIZE), OR RIPRAP WILL BE PLACED CLOSE TO EACH END OF THE FLUME PIPE SO AS TO DAM OFF THE CREEKFORCING THE WATER TO FLOW THROUGH THE FLUME PIPE (SOME MODIFICATIONS TO THE STREAM BOTTOM MAY BE REQUIRED TO ACHIEVE AN EFFECTIVESEAL).5.THE ENTRAPPED WATER CAN THEN BE PUMPED FROM THE CREEK WITHIN THE DAMMED-OFF AREA AND IN THE PROPOSED TRENCH CENTERLINE INTO ADEWATERING STRUCTURE. THE TRENCH CAN THEN BE DUG UNDER THE FLUME PIPE. THE PIPE SECTIONS WILL THEN BE INSTALLED TO THE PROPER DEPTHUNDER THE FLUME PIPE. AFTER PIPE SECTIONS ARE INSTALLED, THE DITCH WILL BE BACKFILLED AND RE-STABILIZATION WILL THEN BE CARRIED OUT.6.THE FLUME PIPE WILL NOT BE REMOVED DURING TRENCHING, PIPE LAYING (THREAD PIPE UNDERNEATH THE FLUME PIPE. FOR EACH WETLAND CROSSED,DETI WILL INSTALL A TRENCH BREAKER AT THE BASE OF SLOPES NEAR THE BOUNDARY BETWEEN THE WETLAND AND ADJACENT UPLAND AREAS. IT WILLINSTALL A PERMANENT SLOPE BREAKER ACROSS THE CONSTRUCTION ROW AT THE BASE OF SLOPES GREATER THAN 5 PERCENT WHERE THE BASE OF THESLOPE IS LESS THAN 50 FEET FROM THE WETLAND, OR AS NEEDED TO PREVENT SEDIMENT TRANSPORT INTO THE WETLAND. IN SOME AREAS, WITH THEAPPROVAL OF THE EI, AN EARTHEN BERM MAYBE SUITABLE AS A SEDIMENT BARRIER ADJACENT TO THE WETLAND.7.THE USE OF THE FLUME PIPE CROSSING METHOD WILL LAST LESS THAN 72 HOURS. HOWEVER, DETI IS REQUESTING A REVIEW OF A CASE BY CASE BASISWITH THE DEQ IN AREAS WHERE ROCK IS ENCOUNTERED WHICH REQUIRES BLASTING/ROCK HAMMERING THAT COULD SIGNIFICANTLY INCREASE THE AMOUNTOF TIME NEEDED TO COMPLETE THE CROSSING OR FAILURE IN CROSSING METHOD REQUIRES ADDITIONAL TIME TO EITHER MITIGATE OR CHANGE.8.RESTORE PRE-CONSTRUCTION WETLAND CONTOURS TO MAINTAIN THE WETLAND HYDROLOGY.9.REVEGETATION AND PERMANENT ROW MAINTENANCE PROCEDURES AS WELL AS THE USE OF LIME, MULCH OR FERTILIZER IN WETLAND AREAS ISADDRESSED IN THE RESTORATION AND REHABILITATION PLAN PROVIDED IN APPENDIX R.10.DETI WILL NOT USE HERBICIDES OR PESTICIDES IN OR WITHIN 100 FEET OF A WETLAND, EXCEPT AS ALLOWED BY THE APPROPRIATE FEDERAL OR STATEAGENCY.11.REMOVE PROJECT-RELATED MATERIAL USED TO SUPPORT EQUIPMENT ON THE CONSTRUCTION ROW, INCLUDING TIMBER MATTING AND PREFABRICATEDEQUIPMENT MATS, UPON COMPLETION OF CONSTRUCTION.12.REMOVE TEMPORARY SEDIMENT BARRIERS LOCATED AT THE BOUNDARY BETWEEN WETLAND AND ADJACENT UPLAND AREAS AFTER UPLANDREVEGETATION AND STABILIZATION OF ADJACENT UPLAND AREAS ARE SUCCESSFUL.13.WITHIN 3 YEARS AFTER CONSTRUCTION, FILE A REPORT WITH FERC IDENTIFYING THE STATUS OF THE WETLAND REVEGETATION EFFORTS ANDDOCUMENTING SUCCESS.GENERAL NOTES AND COMMENTS:SYM.DATEBYREVISION INFORMATIONPROJECT/TASKAPP.--ISSUED FOR PERMITTINGJR03/09./20170APP. 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, LLCAS SHOWN1/19/2018SR1/9/2018CM610 OF 10ACP\North Carolina\DetailsEROSION AND SEDIMENT CONTROL DETAILSATLANTIC COAST PIPELINENCSEAL--ISSUED IN RESPONSE to NCDEQ COMMENTSEB08/01/171--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017CM09/21/172--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM SEPTEMBER 21, 2017)CM10/06/20173--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON SEPTEMBER 15, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 06, 2017)CM10/20/20174--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON NOVEMBER 6, 2017 (SUPERCEEDS REVISIONS FROM OCTOBER 20, 2017)CM12/15/20175--ISSUED IN RESPONSE to NCDEQ COMMENTS RECIEVED ON JANUARY 4, 2018 (SUPERCEEDS REVISIONS FROM DECEMBER 15, 2017)CM1/19/20186

Attachment #4
Alignment Sheets
R3-1023-101TYP.OR3-1023-1011-1021-1071-1052-1012-1068-1018-103TYP.TYP.1-101OR3-1023-101TYP.1-107TYP.TYP.TYP.TYP.TYP.TYP.TYP.TYP.OR3-1023-101TYP.OR3-1023-1011-1021-1071-1052-1012-1068-1018-103TYP.TYP.1-101OR3-1023-101TYP.1-107TYP.TYP.TYP.TYP.TYP.TYP.TYP.TYP.gai consultants© 2018 GAI Consultants, Inc.1. COORDINATE SYSTEM USED FOR MAPPING AND TOPOGRAPHY - UTM WITH NAD83 DATUM, ZONE 17, US SURVEY FOOT, CENTRAL MERIDAN 81° W2.CONTOURS AND TOPOGRAPHIC FEATURES WERE DERIVED BY AN ON THE GROUND SURVEY PERFORMED BYTHE THRASHER GROUP, INC. ON 06-25-2014 THRU 08-26-2014 GPS SUB-METER ACCURACY.3.AERIAL IMAGERY IS TAKEN FROM A SPRING 2015 FLIGHT BY KUCERA INTERNATIONAL INC.4.THE PROPERTY LINES SHOWN ARE BASED ON GIS & TAX ASSEMENT RECORDS (PROVIDED BY OTHERS). GAI &THE THRASHER GROUP MAKE NO GUARANTEE EITHER EXPRESSED OR IMPLIED AS TO THE ACCURACY OF THERECORDS AS SHOWN ON THESE DRAWINGS.5.WETLAND DATA SHOWN ON THE DRAWINGS WAS PROVIDED BY NRG.6.THESE DRAWINGS ARE NOT INTENDED TO PROVIDE EROSION AND SEDIMENTATION CONTROL REQUIREMENTS.SEE EROSION AND SEDIMENTATION CONTROL PLANS FOR COMPLETE REQUIREMENTS AND BMP LOCATIONS.7.ALL STATIONING SHOWN IS SLOPE STATIONING.EXTRA WORK SPACEPROPOSED TEMPORARY R.O.W.TOPSOIL SEGREGATION AREAWETLAND(COLOR SHOWN TO PROVIDE CLARITY ONLY)PROPERTY LINEFENCESTREAMEXISTING GAS PIPELINEOVERHEAD UTILITY LINESPROPOSED GAS PIPELINESTORM SEWERWATER LINESANITARY SEWEREDGE OF GRAVELPROPOSED PERMANENT EASEMENTUTILITY POLEPROPOSED GAS PIPELINE (NO GROUND SURVEY)PROPOSED ACCESS ROADgai consultants - NC, inc.PROPERTY LINEFENCESTREAMEXISTING GAS PIPELINEOVERHEAD UTILITY LINESPROPOSED GAS PIPELINESTORM SEWERWATER LINESANITARY SEWEREDGE OF GRAVELPROPOSED PERMANENT EASEMENTPROPOSED GAS PIPELINE (NO GROUND SURVEY)ACCESS ROADUNDERGROUND ELECTRICSTREAM CROSSINGCONSTRUCTION ENTRANCE WITH DITCHCULVERT AS NEEDED PERMANENT WATERBAR/SLOPE BREAKERTRENCH BREAKER/PLUG TEMPORARY WATERBAR/SLOPE BREAKERUSFWS STREAM CROSSING WITH ENHANCEDCONTROLS (COMPOST FILTER SOCK TO BE USEDAT THE UPLAND/WATERBODY BOUNDARYIN PLACE OF BSRF)CULVERT/ACCESS ROAD WATERBARSBELTED SILT RETENTIONFENCE (BSRF)LIMIT OF DISTURBANCESOIL TYPEORANGE SAFETY FENCEROADSIDE DITCHCOIR LOGCOMPOST FILTER SOCKGENERALIZED SURFACE WATER FLOWSURFACE WATER FLOW WITHIN ROWWATERBAR (PLAN VIEW)WATERBAR OUTLET (PLAN VIEW)TURBIDITY CURTAIN (PLAN VIEW)50' TURBIDITY SAMPLING LOCATION (PLAN VIEW)50' TURBIDITY AND TDS SAMPLING LOCATION (PLAN VIEW)TCINLET/OUTLET PROTECTIONNOTE: THE PE SEAL AND SIGNATURE APPLIES ONLY TO THEE&S CONTROL DESIGN COMPLETED BY ERM (SEE NOTE 10).UTILITY POLEEXTRA WORK SPACEWETLANDTOPSOIL SEGREGATION AREAPROPOSED TEMPORARY R.O.W.(COLOR SHOWN TO PROVIDE CLARITY ONLY)BORE PITDETAIL CALLOUT11-10STREAM BUFFER7 DAY STABILIZATION AREAWATER IMPOUNDMENT SITE(SHEETS 15, 66 & 94)1. COORDINATE SYSTEM USED FOR MAPPING AND TOPOGRAPHY - UTM WITH NAD83 DATUM, ZONE 17, US SURVEY FOOT, CENTRAL MERIDIAN 81° W.2.CONTOURS AND TOPOGRAPHIC FEATURES WERE DERIVED FROM LIDAR DATA AND GPS SUB-METER GROUND SURVEY PERFORMED BY GAI CONSULTANTS, INC FROM 11-03-2014 THRU 11-07-2014.3.IMAGERY TAKEN FROM GOOGLE EARTH.4.THE PROPERTY LINES SHOWN ARE BASED ON GIS & TAX ASSESSMENT RECORDS (PROVIDED BY OTHERS). GAI CONSULTANTS MAKE NO GUARANTEE EITHER EXPRESSED OR IMPLIED AS TO THEACCURACY OF THE RECORDS AS SHOWN ON THESE DRAWINGS.5.STREAM AND WETLAND DATA SHOWN ON THE DRAWINGS WAS PROVIDED BY ERM.6.EROSION AND SEDIMENTATION CONTROL ELEMENTS MAY BE SHOWN OUTSIDE OF THE WORK AREAS FOR CLARITY ONLY. ACTUAL INSTALLATION SHALL BE WITHIN THE WORK AREAS.7.ALL STATIONING SHOWN IS SLOPE STATIONING.8.SILT FENCE AND FILTER SOCK SHALL BE INSTALLED PARALLEL TO CONTOUR TO EXTENT PRACTICABLE IN ACCORDANCE WITH STANDARD DETAIL9.ACCESS ROADS HAVE BEEN GROUPED INTO TWO CATEGORIES - 1) EXISTING ROADS MINOR UPGRADE AND 2) EXISTING ROADS MAJOR UPGRADE. APPROPRIATE EROSION AND SEDIMENT CONTROLSWILL BE PROVIDED FOR BOTH ROAD CATEGORIES.10.*ERM IS SOLELY RESPONSIBLE FOR THE NATURE AND LOCATION OF THE DEPICTED BMPS AS OF THE DATE SIGNED AND SEALED BASED ON THE SOURCE DATA PROVIDED AND AS DESCRIBED IN THENOTES SECTION OF THE INDEX SHEET OF THIS PLAN SET.11.WATERBAR CONFIGURATION IS DEPICTED IN PLAN VIEW BASED ON INFORMATION CURRENTLY AVAILABLE. WATERBAR CONFIGURATION MAY BE FIELD ADJUSTED AS NEEDED BASED ON CONDITIONSOBSERVED AT THE TIME OF CONSTRUCTION. THE CONFIGURATION DEPICTED IN PLAN VIEW APPLIES TO BOTH TEMPORARY AND PERMANENT WATERBARS, AS APPROPRIATE.12.THE MAPPING SYMBOLOGY USED TO REPRESENT THE E&S CONTROLS IN THE PLAN VIEW ARE NOT TO SCALE SO THAT THEY ARE MORE VISIBLE ON THE DRAWINGS. E&S CONTROLS MAY BE SHOWNOUTSIDE OF THE LIMIT OF DISTURBANCE (LOD) FOR CLARITY ONLY. E&S CONTROLS SHALL BE PLACED WITHIN THE LOD.WOOD MATSNMATCH LINESHEET 46MATCH LINESHEET 48MATCH LINESHEET 106-11
a Ra Ra
Ra
Ra
Ra
Ra
Ra
NoB NoB NoA
GoA
NoB
BoB
BbRa OR3-1023-1011-1021-1052-1012-1068-102TYP.TYP.TYP.TYP.TYP.TYP.8-103TYP.1-101TYP.gai consultants© 2018 GAI Consultants, Inc.1. COORDINATE SYSTEM USED FOR MAPPING AND TOPOGRAPHY - UTM WITH NAD83 DATUM, ZONE 17, US SURVEY FOOT, CENTRAL MERIDAN 81° W2.CONTOURS AND TOPOGRAPHIC FEATURES WERE DERIVED BY AN ON THE GROUND SURVEY PERFORMED BYTHE THRASHER GROUP, INC. ON 06-25-2014 THRU 08-26-2014 GPS SUB-METER ACCURACY.3.AERIAL IMAGERY IS TAKEN FROM A SPRING 2015 FLIGHT BY KUCERA INTERNATIONAL INC.4.THE PROPERTY LINES SHOWN ARE BASED ON GIS & TAX ASSEMENT RECORDS (PROVIDED BY OTHERS). GAI &THE THRASHER GROUP MAKE NO GUARANTEE EITHER EXPRESSED OR IMPLIED AS TO THE ACCURACY OF THERECORDS AS SHOWN ON THESE DRAWINGS.5.WETLAND DATA SHOWN ON THE DRAWINGS WAS PROVIDED BY NRG.6.THESE DRAWINGS ARE NOT INTENDED TO PROVIDE EROSION AND SEDIMENTATION CONTROL REQUIREMENTS.SEE EROSION AND SEDIMENTATION CONTROL PLANS FOR COMPLETE REQUIREMENTS AND BMP LOCATIONS.7.ALL STATIONING SHOWN IS SLOPE STATIONING.EXTRA WORK SPACEPROPOSED TEMPORARY R.O.W.TOPSOIL SEGREGATION AREAWETLAND(COLOR SHOWN TO PROVIDE CLARITY ONLY)PROPERTY LINEFENCESTREAMEXISTING GAS PIPELINEOVERHEAD UTILITY LINESPROPOSED GAS PIPELINESTORM SEWERWATER LINESANITARY SEWEREDGE OF GRAVELPROPOSED PERMANENT EASEMENTUTILITY POLEPROPOSED GAS PIPELINE (NO GROUND SURVEY)PROPOSED ACCESS ROADgai consultants - NC, inc.PROPERTY LINEFENCESTREAMEXISTING GAS PIPELINEOVERHEAD UTILITY LINESPROPOSED GAS PIPELINESTORM SEWERWATER LINESANITARY SEWEREDGE OF GRAVELPROPOSED PERMANENT EASEMENTPROPOSED GAS PIPELINE (NO GROUND SURVEY)ACCESS ROADUNDERGROUND ELECTRICSTREAM CROSSINGCONSTRUCTION ENTRANCE WITH DITCHCULVERT AS NEEDED PERMANENT WATERBAR/SLOPE BREAKERTRENCH BREAKER/PLUG TEMPORARY WATERBAR/SLOPE BREAKERUSFWS STREAM CROSSING WITH ENHANCEDCONTROLS (COMPOST FILTER SOCK TO BE USEDAT THE UPLAND/WATERBODY BOUNDARYIN PLACE OF BSRF)CULVERT/ACCESS ROAD WATERBARSBELTED SILT RETENTIONFENCE (BSRF)LIMIT OF DISTURBANCESOIL TYPEORANGE SAFETY FENCEROADSIDE DITCHCOIR LOGCOMPOST FILTER SOCKGENERALIZED SURFACE WATER FLOWSURFACE WATER FLOW WITHIN ROWWATERBAR (PLAN VIEW)WATERBAR OUTLET (PLAN VIEW)TURBIDITY CURTAIN (PLAN VIEW)50' TURBIDITY SAMPLING LOCATION (PLAN VIEW)50' TURBIDITY AND TDS SAMPLING LOCATION (PLAN VIEW)TCINLET/OUTLET PROTECTIONNOTE: THE PE SEAL AND SIGNATURE APPLIES ONLY TO THEE&S CONTROL DESIGN COMPLETED BY ERM (SEE NOTE 10).UTILITY POLEEXTRA WORK SPACEWETLANDTOPSOIL SEGREGATION AREAPROPOSED TEMPORARY R.O.W.(COLOR SHOWN TO PROVIDE CLARITY ONLY)BORE PITDETAIL CALLOUT11-10STREAM BUFFER7 DAY STABILIZATION AREAWATER IMPOUNDMENT SITE(SHEETS 15, 66 & 94)1. COORDINATE SYSTEM USED FOR MAPPING AND TOPOGRAPHY - UTM WITH NAD83 DATUM, ZONE 17, US SURVEY FOOT, CENTRAL MERIDIAN 81° W.2.CONTOURS AND TOPOGRAPHIC FEATURES WERE DERIVED FROM LIDAR DATA AND GPS SUB-METER GROUND SURVEY PERFORMED BY GAI CONSULTANTS, INC FROM 11-03-2014 THRU 11-07-2014.3.IMAGERY TAKEN FROM GOOGLE EARTH.4.THE PROPERTY LINES SHOWN ARE BASED ON GIS & TAX ASSESSMENT RECORDS (PROVIDED BY OTHERS). GAI CONSULTANTS MAKE NO GUARANTEE EITHER EXPRESSED OR IMPLIED AS TO THEACCURACY OF THE RECORDS AS SHOWN ON THESE DRAWINGS.5.STREAM AND WETLAND DATA SHOWN ON THE DRAWINGS WAS PROVIDED BY ERM.6.EROSION AND SEDIMENTATION CONTROL ELEMENTS MAY BE SHOWN OUTSIDE OF THE WORK AREAS FOR CLARITY ONLY. ACTUAL INSTALLATION SHALL BE WITHIN THE WORK AREAS.7.ALL STATIONING SHOWN IS SLOPE STATIONING.8.SILT FENCE AND FILTER SOCK SHALL BE INSTALLED PARALLEL TO CONTOUR TO EXTENT PRACTICABLE IN ACCORDANCE WITH STANDARD DETAIL9.ACCESS ROADS HAVE BEEN GROUPED INTO TWO CATEGORIES - 1) EXISTING ROADS MINOR UPGRADE AND 2) EXISTING ROADS MAJOR UPGRADE. APPROPRIATE EROSION AND SEDIMENT CONTROLSWILL BE PROVIDED FOR BOTH ROAD CATEGORIES.10.*ERM IS SOLELY RESPONSIBLE FOR THE NATURE AND LOCATION OF THE DEPICTED BMPS AS OF THE DATE SIGNED AND SEALED BASED ON THE SOURCE DATA PROVIDED AND AS DESCRIBED IN THENOTES SECTION OF THE INDEX SHEET OF THIS PLAN SET.11.WATERBAR CONFIGURATION IS DEPICTED IN PLAN VIEW BASED ON INFORMATION CURRENTLY AVAILABLE. WATERBAR CONFIGURATION MAY BE FIELD ADJUSTED AS NEEDED BASED ON CONDITIONSOBSERVED AT THE TIME OF CONSTRUCTION. THE CONFIGURATION DEPICTED IN PLAN VIEW APPLIES TO BOTH TEMPORARY AND PERMANENT WATERBARS, AS APPROPRIATE.12.THE MAPPING SYMBOLOGY USED TO REPRESENT THE E&S CONTROLS IN THE PLAN VIEW ARE NOT TO SCALE SO THAT THEY ARE MORE VISIBLE ON THE DRAWINGS. E&S CONTROLS MAY BE SHOWNOUTSIDE OF THE LIMIT OF DISTURBANCE (LOD) FOR CLARITY ONLY. E&S CONTROLS SHALL BE PLACED WITHIN THE LOD.WOOD MATSMATCH LINESHEET 72MATCH LINESHEET 70MATCH LINESHEET 109-17
-106TYP.1-1018-101TYP.TYP.TYP.1-1018-101TYP.NMATCH LINESHEET 47© 2018 GAI Consultants, Inc.1. COORDINATE SYSTEM USED FOR MAPPING AND TOPOGRAPHY - UTM WITH NAD83 DATUM, ZONE 17, US SURVEY FOOT, CENTRAL MERIDAN 81° W2.CONTOURS AND TOPOGRAPHIC FEATURES WERE DERIVED BY AN ON THE GROUND SURVEY PERFORMED BYTHE THRASHER GROUP, INC. ON 06-25-2014 THRU 08-26-2014 GPS SUB-METER ACCURACY.3.AERIAL IMAGERY IS TAKEN FROM A SPRING 2015 FLIGHT BY KUCERA INTERNATIONAL INC.4.THE PROPERTY LINES SHOWN ARE BASED ON GIS & TAX ASSEMENT RECORDS (PROVIDED BY OTHERS). GAI &THE THRASHER GROUP MAKE NO GUARANTEE EITHER EXPRESSED OR IMPLIED AS TO THE ACCURACY OF THERECORDS AS SHOWN ON THESE DRAWINGS.5.WETLAND DATA SHOWN ON THE DRAWINGS WAS PROVIDED BY NRG.6.THESE DRAWINGS ARE NOT INTENDED TO PROVIDE EROSION AND SEDIMENTATION CONTROL REQUIREMENTS.SEE EROSION AND SEDIMENTATION CONTROL PLANS FOR COMPLETE REQUIREMENTS AND BMP LOCATIONS.7.ALL STATIONING SHOWN IS SLOPE STATIONING.EXTRA WORK SPACEAREA OF NO DISTURBANCEPROPOSED TEMPORARY R.O.W.WETLANDTOPSOIL SEGREGATION AREAPROPERTY LINEFENCESTREAMEXISTING GAS PIPELINEOVERHEAD UTILITY LINESPROPOSED GAS PIPELINESTORM SEWERWATER LINESANITARY SEWEREDGE OF GRAVELPROPOSED PERMANENT EASEMENTUTILITY POLEPROPOSED GAS PIPELINE (NO GROUND SURVEY)gai consultants - NC, inc.PROPERTY LINEFENCESTREAMEXISTING GAS PIPELINEOVERHEAD UTILITY LINESPROPOSED GAS PIPELINESTORM SEWERWATER LINESANITARY SEWEREDGE OF GRAVELPROPOSED PERMANENT EASEMENTPROPOSED GAS PIPELINE (NO GROUND SURVEY)ACCESS ROADUNDERGROUND ELECTRICSTREAM CROSSINGCONSTRUCTION ENTRANCE WITH DITCHCULVERT AS NEEDED PERMANENT WATERBAR/SLOPE BREAKERTRENCH BREAKER/PLUG TEMPORARY WATERBAR/SLOPE BREAKERUSFWS STREAM CROSSING WITH ENHANCEDCONTROLS (COMPOST FILTER SOCK TO BE USEDAT THE UPLAND/WATERBODY BOUNDARYIN PLACE OF BSRF)CULVERT/ACCESS ROAD WATERBARSBELTED SILT RETENTIONFENCE (BSRF)LIMIT OF DISTURBANCESOIL TYPEORANGE SAFETY FENCEROADSIDE DITCHCOIR LOGCOMPOST FILTER SOCKGENERALIZED SURFACE WATER FLOWSURFACE WATER FLOW WITHIN ROWWATERBAR (PLAN VIEW)WATERBAR OUTLET (PLAN VIEW)TURBIDITY CURTAIN (PLAN VIEW)50' TURBIDITY SAMPLING LOCATION (PLAN VIEW)50' TURBIDITY AND TDS SAMPLING LOCATION (PLAN VIEW)TCINLET/OUTLET PROTECTION1. COORDINATE SYSTEM USED FOR MAPPING AND TOPOGRAPHY - UTM WITH NAD83 DATUM, ZONE 17, US SURVEY FOOT, CENTRAL MERIDIAN 81° W.2.CONTOURS AND TOPOGRAPHIC FEATURES WERE DERIVED FROM LIDAR DATA AND GPS SUB-METER GROUND SURVEY PERFORMED BY GAI CONSULTANTS, INC FROM 11-03-2014 THRU 11-07-2014.3.IMAGERY TAKEN FROM GOOGLE EARTH.4.THE PROPERTY LINES SHOWN ARE BASED ON GIS & TAX ASSESSMENT RECORDS (PROVIDED BY OTHERS). GAI CONSULTANTS MAKE NO GUARANTEE EITHER EXPRESSED OR IMPLIED AS TO THEACCURACY OF THE RECORDS AS SHOWN ON THESE DRAWINGS.5.STREAM AND WETLAND DATA SHOWN ON THE DRAWINGS WAS PROVIDED BY ERM.6.EROSION AND SEDIMENTATION CONTROL ELEMENTS MAY BE SHOWN OUTSIDE OF THE WORK AREAS FOR CLARITY ONLY. ACTUAL INSTALLATION SHALL BE WITHIN THE WORK AREAS.7.ALL STATIONING SHOWN IS SLOPE STATIONING.8.SILT FENCE AND FILTER SOCK SHALL BE INSTALLED PARALLEL TO CONTOUR TO EXTENT PRACTICABLE IN ACCORDANCE WITH STANDARD DETAIL9.ACCESS ROADS HAVE BEEN GROUPED INTO TWO CATEGORIES - 1) EXISTING ROADS MINOR UPGRADE AND 2) EXISTING ROADS MAJOR UPGRADE. APPROPRIATE EROSION AND SEDIMENT CONTROLSWILL BE PROVIDED FOR BOTH ROAD CATEGORIES.10.*ERM IS SOLELY RESPONSIBLE FOR THE NATURE AND LOCATION OF THE DEPICTED BMPS AS OF THE DATE SIGNED AND SEALED BASED ON THE SOURCE DATA PROVIDED AND AS DESCRIBED IN THENOTES SECTION OF THE INDEX SHEET OF THIS PLAN SET.11.WATERBAR CONFIGURATION IS DEPICTED IN PLAN VIEW BASED ON INFORMATION CURRENTLY AVAILABLE. WATERBAR CONFIGURATION MAY BE FIELD ADJUSTED AS NEEDED BASED ON CONDITIONSOBSERVED AT THE TIME OF CONSTRUCTION. THE CONFIGURATION DEPICTED IN PLAN VIEW APPLIES TO BOTH TEMPORARY AND PERMANENT WATERBARS, AS APPROPRIATE.12.THE MAPPING SYMBOLOGY USED TO REPRESENT THE E&S CONTROLS IN THE PLAN VIEW ARE NOT TO SCALE SO THAT THEY ARE MORE VISIBLE ON THE DRAWINGS. E&S CONTROLS MAY BE SHOWNOUTSIDE OF THE LIMIT OF DISTURBANCE (LOD) FOR CLARITY ONLY. E&S CONTROLS SHALL BE PLACED WITHIN THE LOD.NOTE: THE PE SEAL AND SIGNATURE APPLIES ONLY TO THEE&S CONTROL DESIGN COMPLETED BY ERM (SEE NOTE 10).UTILITY POLEEXTRA WORK SPACEWETLANDTOPSOIL SEGREGATION AREAPROPOSED TEMPORARY R.O.W.(COLOR SHOWN TO PROVIDE CLARITY ONLY)BORE PITDETAIL CALLOUT11-10STREAM BUFFER7 DAY STABILIZATION AREAWATER IMPOUNDMENT SITE(SHEETS 15, 66 & 94)WOOD MATSN
MATCH LINESHEET 59MATCH LINESHEET 106-12MATCH LINESHEET 106-11
a
Ra
Ra
Ra
NoA
GoA
AuB
NoB TYP.8-102TYP.RaRaRaNoBGoAGoANoANnDRaNoBTYP.1-1018-102TYP.8-101TYP.MATCH LINESHEET 71© 2018 GAI Consultants, Inc.1. COORDINATE SYSTEM USED FOR MAPPING AND TOPOGRAPHY - UTM WITH NAD83 DATUM, ZONE 17, US SURVEY FOOT, CENTRAL MERIDAN 81° W2.CONTOURS AND TOPOGRAPHIC FEATURES WERE DERIVED BY AN ON THE GROUND SURVEY PERFORMED BYTHE THRASHER GROUP, INC. ON 06-25-2014 THRU 08-26-2014 GPS SUB-METER ACCURACY.3.AERIAL IMAGERY IS TAKEN FROM A SPRING 2015 FLIGHT BY KUCERA INTERNATIONAL INC.4.THE PROPERTY LINES SHOWN ARE BASED ON GIS & TAX ASSEMENT RECORDS (PROVIDED BY OTHERS). GAI &THE THRASHER GROUP MAKE NO GUARANTEE EITHER EXPRESSED OR IMPLIED AS TO THE ACCURACY OF THERECORDS AS SHOWN ON THESE DRAWINGS.5.WETLAND DATA SHOWN ON THE DRAWINGS WAS PROVIDED BY NRG.6.THESE DRAWINGS ARE NOT INTENDED TO PROVIDE EROSION AND SEDIMENTATION CONTROL REQUIREMENTS.SEE EROSION AND SEDIMENTATION CONTROL PLANS FOR COMPLETE REQUIREMENTS AND BMP LOCATIONS.7.ALL STATIONING SHOWN IS SLOPE STATIONING.EXTRA WORK SPACEAREA OF NO DISTURBANCEPROPOSED TEMPORARY R.O.W.WETLANDTOPSOIL SEGREGATION AREAPROPERTY LINEFENCESTREAMEXISTING GAS PIPELINEOVERHEAD UTILITY LINESPROPOSED GAS PIPELINESTORM SEWERWATER LINESANITARY SEWEREDGE OF GRAVELPROPOSED PERMANENT EASEMENTUTILITY POLEPROPOSED GAS PIPELINE (NO GROUND SURVEY)gai consultants - NC, inc.PROPERTY LINEFENCESTREAMEXISTING GAS PIPELINEOVERHEAD UTILITY LINESPROPOSED GAS PIPELINESTORM SEWERWATER LINESANITARY SEWEREDGE OF GRAVELPROPOSED PERMANENT EASEMENTPROPOSED GAS PIPELINE (NO GROUND SURVEY)ACCESS ROADUNDERGROUND ELECTRICSTREAM CROSSINGCONSTRUCTION ENTRANCE WITH DITCHCULVERT AS NEEDED PERMANENT WATERBAR/SLOPE BREAKERTRENCH BREAKER/PLUG TEMPORARY WATERBAR/SLOPE BREAKERUSFWS STREAM CROSSING WITH ENHANCEDCONTROLS (COMPOST FILTER SOCK TO BE USEDAT THE UPLAND/WATERBODY BOUNDARYIN PLACE OF BSRF)CULVERT/ACCESS ROAD WATERBARSBELTED SILT RETENTIONFENCE (BSRF)LIMIT OF DISTURBANCESOIL TYPEORANGE SAFETY FENCEROADSIDE DITCHCOIR LOGCOMPOST FILTER SOCKGENERALIZED SURFACE WATER FLOWSURFACE WATER FLOW WITHIN ROWWATERBAR (PLAN VIEW)WATERBAR OUTLET (PLAN VIEW)TURBIDITY CURTAIN (PLAN VIEW)50' TURBIDITY SAMPLING LOCATION (PLAN VIEW)50' TURBIDITY AND TDS SAMPLING LOCATION (PLAN VIEW)TCINLET/OUTLET PROTECTION1. COORDINATE SYSTEM USED FOR MAPPING AND TOPOGRAPHY - UTM WITH NAD83 DATUM, ZONE 17, US SURVEY FOOT, CENTRAL MERIDIAN 81° W.2.CONTOURS AND TOPOGRAPHIC FEATURES WERE DERIVED FROM LIDAR DATA AND GPS SUB-METER GROUND SURVEY PERFORMED BY GAI CONSULTANTS, INC FROM 11-03-2014 THRU 11-07-2014.3.IMAGERY TAKEN FROM GOOGLE EARTH.4.THE PROPERTY LINES SHOWN ARE BASED ON GIS & TAX ASSESSMENT RECORDS (PROVIDED BY OTHERS). GAI CONSULTANTS MAKE NO GUARANTEE EITHER EXPRESSED OR IMPLIED AS TO THEACCURACY OF THE RECORDS AS SHOWN ON THESE DRAWINGS.5.STREAM AND WETLAND DATA SHOWN ON THE DRAWINGS WAS PROVIDED BY ERM.6.EROSION AND SEDIMENTATION CONTROL ELEMENTS MAY BE SHOWN OUTSIDE OF THE WORK AREAS FOR CLARITY ONLY. ACTUAL INSTALLATION SHALL BE WITHIN THE WORK AREAS.7.ALL STATIONING SHOWN IS SLOPE STATIONING.8.SILT FENCE AND FILTER SOCK SHALL BE INSTALLED PARALLEL TO CONTOUR TO EXTENT PRACTICABLE IN ACCORDANCE WITH STANDARD DETAIL9.ACCESS ROADS HAVE BEEN GROUPED INTO TWO CATEGORIES - 1) EXISTING ROADS MINOR UPGRADE AND 2) EXISTING ROADS MAJOR UPGRADE. APPROPRIATE EROSION AND SEDIMENT CONTROLSWILL BE PROVIDED FOR BOTH ROAD CATEGORIES.10.*ERM IS SOLELY RESPONSIBLE FOR THE NATURE AND LOCATION OF THE DEPICTED BMPS AS OF THE DATE SIGNED AND SEALED BASED ON THE SOURCE DATA PROVIDED AND AS DESCRIBED IN THENOTES SECTION OF THE INDEX SHEET OF THIS PLAN SET.11.WATERBAR CONFIGURATION IS DEPICTED IN PLAN VIEW BASED ON INFORMATION CURRENTLY AVAILABLE. WATERBAR CONFIGURATION MAY BE FIELD ADJUSTED AS NEEDED BASED ON CONDITIONSOBSERVED AT THE TIME OF CONSTRUCTION. THE CONFIGURATION DEPICTED IN PLAN VIEW APPLIES TO BOTH TEMPORARY AND PERMANENT WATERBARS, AS APPROPRIATE.12.THE MAPPING SYMBOLOGY USED TO REPRESENT THE E&S CONTROLS IN THE PLAN VIEW ARE NOT TO SCALE SO THAT THEY ARE MORE VISIBLE ON THE DRAWINGS. E&S CONTROLS MAY BE SHOWNOUTSIDE OF THE LIMIT OF DISTURBANCE (LOD) FOR CLARITY ONLY. E&S CONTROLS SHALL BE PLACED WITHIN THE LOD.NOTE: THE PE SEAL AND SIGNATURE APPLIES ONLY TO THEE&S CONTROL DESIGN COMPLETED BY ERM (SEE NOTE 10).UTILITY POLEEXTRA WORK SPACEWETLANDTOPSOIL SEGREGATION AREAPROPOSED TEMPORARY R.O.W.(COLOR SHOWN TO PROVIDE CLARITY ONLY)BORE PITDETAIL CALLOUT11-10STREAM BUFFER7 DAY STABILIZATION AREAWATER IMPOUNDMENT SITE(SHEETS 15, 66 & 94)WOOD MATSMATCH LINESHEET 88MATCH LINESHEET 109-18MATCH LINESHEET 109-171-101