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HomeMy WebLinkAbout20181574 Ver 1_401 Application_20181114corblu ECOLOGY GROUP November 13, 2018 NC DWR, 401 & Buffer Permitting Branch 2 0 1 8 1 5 7 4 512 North Salisbury Street Raleigh, NC 27604 Subject: Section 401 Water Quality Pre -Construction Notification Colonial Pipeline Company Maintenance Rowan County, North Carolina Corblu Project No. 02-041901- Exposure Line 2 To whom it may concern: On behalf of our client, Colonial Pipeline Company's (CPC), Corblu Ecology Group, LLC (Corblu) is pleased to submit this Section 401 water quality Pre -Construction Notification (PCN) for the required exposed pipeline maintenance work for CPC's Line 2. The pipeline exposure is located northwest of the Pinevale Drive and Lumen Christi Lane intersection in Rowan County, North Carolina (35.704961, -80.509357; Figure 1). Based on our evaluation of the subject site, we believe that the temporary and permanent disturbances to waters of the U.S. associated with this activity are authorized by the U.S. Army Corps of Engineers (USACE) under a combination of Nationwide Permit (NWP) Nos. 3 (a) and (c) — Maintenance. This NWP does not require notification of the USACE prior to initiation of the work; however, it has been determined that written approval is required from the North Carolina Department of Environmental Quality (DEQ) for Section 401 Water Quality Certification prior to the initiation of work. Background Recent high flow events from significant precipitation associated with Hurricane Florence has resulted in significant stream bed and bank erosion within the unnamed perennial tributary to Jump and Run Branch within CPC's right-of-way (ROW), exposing CPC's Line 2 (Photograph Nos. 1 and 2). The exposure and lack of surface pipeline protection at this project location has resulted in conditions that leave the pipeline vulnerable to potential damages. Further, these conditions are not consistent with CPC's or regulatory requirements for pipeline protection. Section 401 Water Quality Pre -Construction Notification November 13, 2018 Colonial Pipeline Company — Line 2 Exposure Corblu Project No. 02-041901 — Rowan Co. NC Proposed Activities in Jurisdictional Waters The proposed pipeline maintenance activity will include permanent and temporary impacts to an unnamed perennial stream totaling 99 linear feet [approximately 89 linear feet (pre -cast revetment mats and rip rap) and 10 linear feet (temporary dam and pump)], respectively. Specifically, CPC proposes to permanently place approximately 34 linear feet of Submar matting and 55 linear feet of rip rap which will provide the required protective cover over Line 2. Temporary disturbances to the perennial stream will include approximately 10 linear feet of temporary workspace (dam and pump) to conduct maintenance activities "in -the -dry". The proposed maintenance location will be accessed through CPC's existing, mowed, and maintained ROW from Lumen Christi Lane (Figure 3). CPC intends to inspect the exposed pipeline and replace the required protective cover over the pipeline through the use of pre -cast revetment mats. To re-establish the protective cover CPC intends to conduct the following: 1) excavate the pipeline at the exposure on Line 2; 2) inspect and make repairs to Line 2 as necessary; 3) backfill the excavation area; and 4) restore the stream to approximate pre -Hurricane Florence contours and elevations over Line 2 using returned excavated material and key pre -cast revetment mats into the stream bed and bank in a manner that maintains stream grade and flow conditions (Appendix A). To minimize sedimentation to the unnamed perennial stream during the above-mentioned maintenance activity, dams constructed of sand bags, steel plates, or water -inflatable plastic dams will be temporarily placed upstream of the maintenance area. The stream flow will be pumped around the maintenance area, discharging immediately downstream via an energy dissipater to prevent stream scour. The pump used will be sufficiently sized to accommodate the anticipated stream flow (Appendix B). The temporarily excavated soils will be stored within the adjacent upland area and returned to the excavated trench, and approximate pre -hurricane contours will be restored following completion of the maintenance activity. It is our understanding once the required protective pipeline cover (pre- cast revetment mats) is keyed into the streambed in a manner that maintains existing grade and flow conditions of the stream, the temporary dams will be removed, and normal streamflow will be restored. Rip rap used to stabilize the pre -cast revetment matting in the stream bed will be placed so the finished top elevation of the rip rap does not exceed that of the original stream bed, and any rip rap utilized for bank stabilization will be placed on an erosion control blanket (geotextile fabric). 2 Section 401 Water Quality Pre -Construction Notification Colonial Pipeline Company — Line 2 Exposure 3 November 13, 2018 Corblu Project No. 02-041901 — Rowan Co. NC CPC's standard erosion control practices will be employed (Appendix C). Specifically, the disturbed areas along the stream bank will be revegetated with a grass seed mix and stabilized with straw and silt fence. Corblu respectfully requests 401 Water Quality Certification for the required preventative pipeline maintenance and the unavoidable impacts to 99 linear feet of perennial stream (34 linear feet of Submar matting, 55 linear feet of rip rap and 10 linear feet of temporary workspace) within CPC's existing, mowed, and maintained ROW (Appendix A). The appropriate figures and photographs are enclosed for your review. 401 & Buffer Permitting PCN Submittal Checklist We have provided the following information to document compliance with the requirements outlined in the PCN Submittal Checklist (Appendix D). Each item is discussed below. Application Fee A $240.00 check made out to "N.C. Division of Water Resources" for 401 Water Quality Certification with minor impacts has been included with this submittal. PCN Application A complete copy of the USACE Wilmington District PCN Application and supporting documentation have been included with this submittal (Appendix E). Stormwater Management Plan Not Applicable - This is a maintenance activity for an existing petroleum pipeline and does not involve the construction of any roads or structures. If your project is located within a State implemented Riparian Buffer Rule Area, submit the following along with site plans and PCN form: Three (3) copies of the details for on-site diffuse flow provisions The unnamed perennial stream is located in the Yadkin Pee Dee Basin, which is not within a State implemented Riparian Buffer Rule Area. DWR Stream Determination Forms for streams on property and DWR determination letter for wetlands or streams (if applicable) Not Applicable — The Line 2 exposure location is listed as Exempt since the use of the pipeline is present and ongoing. Section 401 Water Quality Pre -Construction Notification Colonial Pipeline Company — Line 2 Exposure Maps and Plans November 13, 2018 Corblu Project No. 02-041901 — Rowan Co. NC • The most recent version of the 1:24,000 USGS Topographic Map: See Figure 1 • The most recent version of the bound and published County NRCS Soil Survey Map - (required for projects within the Neuse River Basin, Tar -Pamlico River Basin, Randleman Lake Watershed and the Catawba River Basin, also recommended for all projects): See Figure 2. • Vicinity map: See Figure 3. • The Site Plan: See Appendix A. • Pre-construction/Pre-existing conditions: See Appendix A. • Proposed conditions: See Appendix A. • Drainage Plans: Not Applicable. • Proposed Impacts: See Appendix A. • Wetland Impacts: Not Applicable. • Stream Impacts: See Appendix A. Summary and Conclusion In summary, the pipeline maintenance activity will result in unavoidable permanent and temporary impacts to 99 linear feet of perennial stream as authorized under the USACE NWP Nos. 3(a) and (c). The project was designed to avoid and minimize stream impacts to the maximum extent 4 Section 401 Water Quality Pre -Construction Notification Colonial Pipeline Company — Line 2 Exposure 5 November 13, 2018 Corblu Project No. 02-041901 — Rowan Co. NC practicable and represents the least environmentally damaging, practicable alternative that satisfies the project purpose. Based on this submittal, we respectfully request written authorization of Section 401 Water Quality Certification. If you have any questions or comments regarding this PCN submittal, please contact the undersigned at (770) 591-9990. Sincerely, CORBLU ECOLOGY GROUP, LLC /0&,:- 4g��- Michael A. Barfield, AWB, CE Project Ecologist Richard W. Whiteside, PhD, CWB, CSE President Enclosures: Figure 1 — Site Location Map Figure 2 — USDA Soils Map Figure 3 — Vicinity Map Figure 4 — Jurisdictional Features Photographs (2) Appendix A: Detailed Site Plans Appendix B: Typical Dam and Pump Maintenance Dig Appendix C: CPC Soil Erosion and Sediment Control Plan Appendix D: 401 & Buffer Permitting PCN Submittal Checklist Appendix E: USACE Wilmington District PCN Form Ms. Jennifer Price, CPC Project Manager, via email Mr. John Wyatt, CPC Environmental Lead -SED, via email Mr. Faron Leigh, CPC Environmental Specialist, via email W N.� _ ` 1 `��' • � '' �ti •t .• • \vim , , j � �-a�..n • - . Fran Hn riits Chk franklin memOrUt PSOS Mhosion „� , ,fit,, -.._ (`.� • • - d0W IN ., \..z. • ✓ cz -�•�• r `� ' Line 2 Exposure 7 ' • cera _ (35.704961, -80.509357) `� , , ,��- Lumen Christi Lane j Ch ` 1 Z �o t ` ' �.... ` -..' ,y �. ors ••\ S ( , ,t h r -� •, . a .�. , avid •.•� yU ! • �tc� Pinevale Drive moo Nf � r ,w t " "• i Vit- � •'ak` r Radio �. _ JLr• T werg- i 8 _ -ST �sRajO:o s6Mrer j �• SVA HOSPITAL Legend low Exposure Location - �'it •// p SuQstatri + - ._ ••� �•, , CPC Pipeline l v O�� 6-91 - v=m sie ton ., Base Map Source: USA Topo Maps 1:24,000 0 1,200 2,400 4,800 Feet Colonial Pipeline Company, SE . Figure 1 Line 2 Exposure c Q b' U Site Location Map Rowan County, North Carolina ECOLOGY GROUP Project No. 02-041901 Base Map Source: ESRI Aerial Imagery o �o0 200 40o Feet GPS Data Collected: 10/17/2018 1'.2,000 Colonial Pipeline Company, SE Line 2 Exposure Rowan County, North Carolina corblu ECOLOGY GROUP Figure 2 USDA NRCS Soils Project No. 02-041901 Base Map Source: ESRI Aerial Imagery 0 175 350 700 Feet GPS Data Collected: 10/17/2018 1-3,500 Colonial Pipeline Company, SE Line 2 Exposure Rovian County, North Carolina oorblu ECOLOGY GROUP Figure 3 Vicinity Map Project No. 02-041901 Base Map Source: ESRI Aerial Imagery 0 75 150 300 Feet GPS Data Collected: 10/17/2018 1-1,500 Colonial Pipeline Company, SE Line 2 Exposure Rowan County, North Carolina corblu ECOLOGY GROUP Figure 4 Jurisdictional Features Project No. 02-041901 Section 401 Water Quality Pre -Construction Notification Photos taken on 10/17/2018 Colonial Pipeline Company — Line 2 Exposure Corblu Project No. 02-041901- Rowan Co. NC APPENDIX A DETAILED SITE PLANS SHEET INDEX: ' ► ► ► ► o No.TITLE ► CP2 C-1 I I I o a C-101EXISTING CONDITIONS ► � � o o � C-301 PROPOSED SITE GRADING PLAN C-401 PROPOSED PLAN 1 z g a1plo C-801 TYPICAL DETAILS I z C-802 TYP CAL DETAILS .I I I I ► C-803 TYPICAL DETAILS p m � is yl ► II II I W D_ W SURVEY NOTES: I I I I ? 1. ALL LOCATIONS OF UNDERGROUND UTILITIES I I I I. ►► c � SHOWN ARE APPROXIMATE AND SHOULD BE FIELD VERIFIED PRIORTO START OF ON' CP1 3. SURVEY UR ECOL'LECTEPERFORMED OR ED ON 10/17/2018. 0/17 20 B ► .I I- I h COLONIAL PIPELINE 36" LINE 1 PIPELINE 4. PROJECT LOCATED IN NAD83 NORTH CAROLINA ► I I. II STATE PLANE COORDINATE SYSTEM sr n 5. THE ORDINARY HIGH WATER MARK (O.H.W.M.) WAS 1° SURVEYED AT ELEV. 682.91_ ► o z U o a ► II II a D: v N O� II II ► Q I Z' II 11 N ► i Wv U O Y O W C ^ � II II Z W COLONIAL PIPELINE 40" LINE 2 PIPELINE -- ► a z EXPOSURE L=9' I I I I ► 0 U w T.O.P. 664.3' o o a� U Z Z Z L iLU Ow xo _ LEGEND: EXPOSz CID BURIED PIPELIE NE HIGH BANK I`'VA �� !,.. 10 N APPARENT RIGHT OF WAY <p�Y O� ,,r:� i Z V FLOW_ FLOW DIRECTION Ox \ I l W ►1 \("hI T.O.P.=682 8 I ce3 CONTROL POINTS: 1 1 I No. NORTHING (N) FASTING (E) ELEVATION (Z) ► "'Jj I I O U 1 715,053.54' 1,551,947.55' 704.20' TOE I I I I ►\ -n X j Z 2 715,039.66' 1,551,989.72' 707.40' o w �a, N SITE LOCATION: N35.70502' W80.50927' HIGH BANK " I'I m W CD ¢ N I I Of oa I 0' 20' 40' 60' ► I I I I �; 1x6 SHE T TITLE: SCALE: 1 =20' I I I ► EXISTING ��► CONDITIONS STHESE CONCEPTUAL DRAWINGS ARE PREPARED BY SUBMAR FOR ESTIMATING PURPOSES ONLY AND ARE NOT CONSTRUCTION DRAWINGS. I .I ISI j �\� SHEET No: ' THESE CONFIDEHML DRAWINGS MAY NOT BE COPIED UNLESS APPROVED j BY SUBMAR, INC. COPYRIGHT 0 SUBMAR. INC. 2018 ALL RIGHTS ► �— O RESERVED. ' GRADING NOTES: 40" LINE 2 PIPELINE ' ' 1. ALL WORK SHALL BE IN ACCORDANCE WITH ANY SPECIAL REQUIREMENTS OF THE PERMIT. _ - "-- •' w o a 2. NO EXCAVATION SHALL BE STARTED WITHOUT FIRST ro NOTIFYING ONE CALL 46 HOURS PRIOR TO MEETING PSTEGBEFORE I I "" I �� CERTIFIED BY THE SITE INSPECTOR PER THE GRADING SHALL BE SCHEDULEDOAT THE START _ - - -- "' - COLONIAL PIPELINE 36" LINE 1 PIPELINE ? i OF GRADING WITH THE FOLLOWING PEOPLE PRESENT: OWNER, CONTRACTOR & INSPECTOR. u.- 1 rw oxm3 3. PRIOR TO ANY CLEARING, BRUSHING OR DEMOLITION, o n = _ OTHER THAN WHAT IS AUTHORIZED, APPROVAL MUST .... 1 a m BE OBTAINED FROM THE PROJECT MANAGER AND _. ..-.. _ -- ,� .... - ' INSPECTOR. COLONIAL PIPELINE- SITE PLUS CONTAINMENT. 689' 4. CUT SLOPES SHALL NOT BE STEEPER THAN 1.5:1 40" LINE 2 PIPELINE SLOPE. 5. ALL TRENCH BACKFILLS SHALL BE EXAMINED AND CERTIFIED BY THE SITE INSPECTOR PER THE GRADING PLAN. 1 o v 6. DUST ABATEMENT SHALL BE CONTROLLED BY WATERING. 7. SANITARY FACILITIES SHALL BE MAINTAINED ON THE _. ..-.. _ -- ,� .... - ' SITE PLUS CONTAINMENT. 689' 6. ALL PUBLIC ROADWAYS MUST BE MAINTAINED DAILY , OF ALL DEBRIS DEPOSITED ON THEM AS A RESULT OF THE CONSTRUCTION OPERATION. CLEANING IS TO as, BE DONE TO THE SATISFACTION OF THE OWNER. _ __ - - ,' I : - - \ ENVIRONMENTAL NOTES: 1. THE OWNER SHALL NOTIFY ALL CONTRACTORS, "•' tJ SUBCONTRACTORS & MATERIAL SUPPLIERS THAT DUMPING OF CHEMICALS INTO THE STORM DRAIN! ' 685' 0 o C SYSTEM IS PROHIBITED. -. -- - , ;..- 682 2. PERMITTEE SHALL MAINTAIN CONSTRUCTION SITE IN ._ / ,' _ SUCH A CONDITION THAT AN ANTICIPATED STORM Z M DOES NOT CARRY WASTES OR POLLUTANTS OFF THE ! �' 683, o SITE. POTENTIAL POLLUTANTS INCLUDE BUT ARE NOT LIMITED TO: SOLID OR LIQUID CHEMICAL SPILLS; • - ! WASTES FROM PAINTS, STAINS, SEALANTS, GLUES, o o a LIMES, PESTICIDES, HERBICIDES, WOOD PRESERVATIVES AND SOLVENTS; ASBESTOS FIBERS,OILS LUBRICANTSPAINTE AND HYDRAULIC. RADIATOR OROR STUCCO FRAGMENTS;E LSBATTERY HIGH BANK fy, 1, �S, / 1 4 1 1 i xo a FLUIDS; FERTILIZERS,VEHICLE EQUIPMENT WASH 663' WATER AND CONCRETE WASH WATER; CONCRETE, DETERGENT OR FLOATABLE WASTES; WASTES FROM ANY ENGINE/EQUIPMENT STEAM CLEANING ORI M \ \ 655' ,t o 0 ¢ CHEMICAL DEGREASING; AND SUPER CHLORINATED %/\ / 686, 6s4- ;. I v L1 4 r POTABLE WATER LINE FLUSHING. DURING CONSTRUCTION, PERMITTEE SHALL DISPOSE OF SUCH I I i z o w MATERIALS IN A SPECIFIED AND CONTROLLED o \ I' {, L>-� TEMPORARY AREA ON-SITE, PHYSICALLY SEPARATED FROM POTENTIAL STORM WATER RUNOFF, WITH ULTIMATE DISPOSAL IN ACCORDANCE WITH LOCAL,-, t' ,i<� I I I 1 \\ STATE AND FEDERAL REQUIREMENTS. -, rr `1 Z CID m 3. CONTRACTOR SHALL CONSTRUCT PROJECT AS'�. ,,, _._ S•� I V AUTHORIZED IN PERMITTED DRAWINGS. ANY CHANGES tr A �` 1 DO ti MUST FIRST BE APPROVED BY PROJECT MANAGER, OWNER AND INSPECTOR AND DOCUMENTED IN THE _ - \ \ c} �`•� CONSTRUCTION CREW BOOK. 6g"� TOE A I I I I``\ ���� v Al 05 ;� 6 � �. Of HIGH BANK '. I, \ cn BURIED PIPELINE -687. \ l - 0 _c) 4 APPARENT RIGHT OF WAY 'I, I I t I t �- ..,A X= 3 FLOW_ FLOW DIRECTION t11 `��� \ } 0 LLI U >- I I I I o Z IS m W 3 �z0< SITE LOCATION: N35J0502' W80.50927' SHEET TITLE: 0' 10' 20' 30' I I v I I V \ PROPOSED SCALE: 1"=10' SITE GRADING PLAN I THESE CONCEPTUAL DRAWINGS ARE PREPARED BY SUBMAR FOR ESTIMATING PURPOSES ONLY AND ARE NOT CONSTRUCTION DRAWINGS. SHEET No: ' THESE CONFIDENT. DRAWINGS MAY NOT BE COPIED UNLESS APPROVED I BY SUBMAR, INC. COPYRIGHT ® SUBMAR, INC. 2018 ALL RIGHTS ' \ ` C-301 RESERVED. JSTRUCTION NOTES ALL WORK IS TO BE PERFORMED IN LOW FLOW -- CONDITIONS WHEN POSSIBLE.IT IS PREFERRED THAT - - WORK OCCURS DURING THE DRY SEASON (OR - OTHERWISE UPSTREAM CONTROLS MANAGED TO MINIMIZE FLOW), CONTRACTOR SHALL MONITOR WEATHER CONDITIONS AND PLAN CONSTRUCTION - - ACTIVITIES ACCORDINGLY TO AVOID IN -STREAM WORK '• DURING RAIN EVENTS AND MINIMIZE EXPOSURE OF DISTURBED SOILS TO RAINFALL. CONSTRUCTION EQUIPMENT AND VEHICLES SHALL BE IN GOOD WORKING CONDITION AND FREE OF ✓ / f / HYDRAULIC. FUEL OR OIL LEAKS. THERE SHOULD BE { COLONIAL PIPELINE �T A PORT -O -POT ONSITE . FUEL, HEAVY EQUIPMENT40" LINE 2 PIPELINE �:.. AND ALL CHEMICAL PRODUCTS SHOULD HAVE ADEQUATE CONTAINMENT. PERIMETER EROSION AND SEDIMENT CONTROLS SHALL BE ESTABLISHED ALLOWING FOR SUBSEQUENT CLEARING AND GRUBBING WITHIN THE PROJECT AREA. r`� . /~�� SALVAGE, FURNISH AND WASTE MATERIALS SHALL BE TEMPORARILY STOCKPILED IN A DESIGNATED APPROVED AREA UNTIL FINAL HANDLING FOR ULTIMATE PLACEMENT. IT IS THE RESPONSIBILITY OF THE SELECTED CONTRACTOR TO ESTABLISH APPROVED STOCKPILE, STAGING AND ACCESS AREAS. IF A RAIN ' EVENT IS EMINENT, THEN A SILT FENCE SHALL BE INSTALLED BETWEEN THE STOCKPILE SOIL AND THE EXISTING STREAM. - y 1 ' I • 0 � � U i COLONIAL PIPELINE / =S�O1• r� " vim„ -36LINE 1 PIPELINE . I V) 777���111 fff , .. � • �. ,.. " ui \/F SUBM/AR MAT SYSTEM W 8'x20' (10 TOTAL) 3 ROCK (12"-18" DIA.) _ UPON COMPLETION OF WORK, ALL EXCESS OR ROCK (12"-18" DIA.) TEMPORARILY STOCKPILED SOILS, STUMPS OR OTHER MATERIAL SHALL BE PERMANENTLY REMOVED AND T"- ��•--,/ PLACED IN UPLAND STORAGE AREAS, PER LOCAL, STATE AND FEDERAL REQUIREMENTS. / IT MAY BE NECESSARY TO DIVERT STREAM FLOW AROUND THE WORKING AREA TO FACILITATE { BACKFILL EXCAVATE 3' DEEP TRENCH WITH CONSTRUCTION USING A BYPASS PUMP OR JERSEY BARRIER. IN NO INSTANCE SHALL SILT LADEN WATER ROCK (12"-18" DIA.) ! BE DISCHARGED INTO THE STREAM, DIRECTLY OR / INDIRECTLY. ALL TEMPORARY ACCESS, STAGING, STOCKPILE OROTHER TEMPORARILY TEMPORARILY DISTURBED AREAS SHALL BE - \ STABILIZED AND REESTABLISHED TO THEIR HIGH BANK ROCK (12 18 DIA) PRE -CONSTRUCTION CONDITIONS, INCLUDING GRADE AND VEGETATION. ! ALTHOUGH THIS PLAN MAKES EVERY ATTEMPT TO ACCOUNT FOR EROSION AND SEDIMENT CONTROL, BANK STABILIZATION AND CONSTRUCTION LOGISTICS, UNFORESEEN CIRCUMSTANCES MAY ARISE THAT REQUIRE ADDITIONAL OR MODIFIED MEASURES TO CONTROL SEDIMENT, STABILIZE RIPARIAN STREAM ' BANKS AND FACILITATE STRUCTURE INSTALLATION. CONTRACTOR SHALL WORK WITH CLIENT AND OXY ENGINEER, AS NECESSARY, TO ENSURE THAT THE PROJECT IS CONSTRUCTED IN ACCORDANCE WITH THE INTENT OF THESE PLANS. ` LEGEND — — BURIED PIPELINE APPARENT RIGHT OF WAY Y$I FLOW FLOW DIRECTION SITE LOCATION: N35.70502' W80.50927' 3 0' 10' 20' 30' SCALE: 1"=10' y THESE CONCEPTUAL DRAWINGS ARE PREPARED BY SUBMAR FOR ESTIMATING PURPOSES ONLY AND ARE NOT CONSTRUCTION DRAWINGS "- THESE CONFIDENTIAL DRAWINGS MAY NOT BE COPIED UNLESS APPROVI BY SUBMAR, INC. COPYRIGHT D SUBMAR. INC. 2018 ALL RIGHTS RESERVED. EROSION CONTROL BLANKET (4,200 TOTAL SF) 3' DEEP x 22' LONG SUBGRADE ROCK GRADE CONTROL (12"-18" DIA.) a Y o � 1�'��.■ �I�,I®■ �� SPE MATT INNS: • MATTRESS TYPE: REVETMENT • MATTRESS DIMENSIONS: 8' x 20' z 4.5' • MATTRESS WEIGHT: AIR 6,200 POUNDS • MATTRESS WEIGHT SUBMERGED: 3,600 POUNDS (APPROX.) • CONCRETE DENSITY: 145 LBS PER CU. FT., 4,000 PSI • 160 ELEMENTS: 5/8' ULTRA VIOLET STABIUZED COPOLYMER EXTRUDED FIBER ROPE, MINIMUM TENSILE STRENGTH 9,500 POUNDS SUBMAR MAT SYSTEM SCALE: N.T.S. L�\38' L 4.5' H 12'5' IVIDUALELEMENT 3.75' �� If �� 3.75' 2.25' NOTE: 1. EXACT PLACEMENT OF MATS AND/OR ANCHORS WILL BE DETERMINED IN THE FIELD. 2. ANTS ARE PLACED ON A GEOTEXTILE FABRIC AS SHOWN IN DETAIL GEOTEXTILE PLAN LAYOUT SCALE: NT.S, THESE CONCEPTUAL DRAWINGS ARE PREPARED BY SUBMAR FOR ESTIMATING PURPOSES ONLY AND ARE NOT CONSTRUCTION DRAWINL THESE CONFIDENTIAL DRAWINGS MAY NOT BE COPIED UNLESS APPRO BY SUBMAR, INC. COPYRIGHT C SUBMAR, INC. 2018 ALL RIGHTS RESERVED. SUBMAR MAT SYSTEM GEOTDMLE UNDERNEATH PIPELINE SUBMAR MAT SYSTEM EXISTING EXISTING GRADE GRADE 3 PROPOSED GRADE BACKFILL EXCAVATED GEOTEXTILE UNDERNEATH 3' DEEP TRENCH WITH SUBMAR MAT SYSTEM TO BE COMPACTED MATERIAL. PLACED 1' BEYOND MAT SYSTEM UPSTREAM ANCHOR TRENCH DETAIL SCALE: N.T.S. BACKFILL EXCAVATED 2' DEEP TRENCH WITH EXISTING SUBMAR MAT COMPACTED MATERIAL CRANE SYSTEM PROPOSED GRADE GEOTEXTILE UNDERNEATH SUBMAR MAT SYSTEM TO BE PLACED 1' BEYOND MAT FLANK TRENCH DETAIL SCALE. N T.S. SUBMAR MAT PIPELINE SYSTEM ROCK TO BE PLACED AT EXISTING LEAST 3 ELEMENTS IN AND GRADE A MINIMUM OFS 0' OUT PROPOSED GRADE GEOTEXTILE UNDERNEATH I SUBMAR LMT SYSTEM l� 22' ROCK SUBGRADE ROCK GRADE CONTROL DETAIL SCALE' N T.S. 8' x 20' x SS. WORM DRIVE CONNECTORS 4.5 MATS MAT 1 MAT 2 55. WORM DRIVE 8' ' 20' �l uIC R� CONNECTORS 4.5' MATS FLOW MAT 2 AMT 1 ROPE LACKED UNDER PLAN VIEW SIDE VIEW NO E: 316 STAINLESS STEEL 2.200 LB. BREAKING STRENOTII IN THE LINE CONFIGURATION ABOVE. 5116NUT DRIVER NEEDED Z CO m ti Z cl)) � W oa Z) 2O�U jazz 0Lu0> ~ o4 m PERIMETER MAT CONNECTION DETAIL JHLL I HILL: SCALE: NT.S, TYPICAL DETAILS SHEET No: C-801 HIGHBANK APPROVED DEWATERING PUMP WITH DISCHARGE PIPE CONTAINMENT C LEAN WATER SANDBAG SEDIMENT BAG DAM (SEE CROSS SECTION) SUCTIO /- STRAW BALES BASEL*1' (2' MIN.) IMPERVIOUS SUMP -HOLE OR POOL TOE PIPE SHEETING (12- TO 18' DEEP 2' DIA.) �_+. WORK AREA SEDIMENT SANDBAG DAM SUCTION PIPE DISCHARGE PIPE SANDBAG DAM CROSS SECT/ON STREAM DIVERSION PUMPS WITH CONTAINMENT NERGY DISSIPATOR (PUMPS SHOULD DISCHARGE WORK AREA LENGTH A STABLE VELOCITY NOT TO EXCEED THAT WHICH CAN BE NOT DI WIDE OF RIPRAP HIGHBANK COMPLETED IN ONE DAY SANAN SANDBAGS) OR DBAGS L)EVVAI EKING DETAIL SCALE: N.T.S. STRAP yy�, SLOW • , 5'E ;: '� }g v 12' MIN PUMP DISCHARGE i'A': •i}• HOSE 12' MIN. PLAN VIEW MULCH, LEAF / WOOD COMPOST, STRAP WOODCHIPS, SAND OR STRAW BALES FLOW SLOPE 5% MAX. PRm FI—AIION FILTER BAG MIN. FILTER FI T R BA ON TR TION SPECIFICATIONS 1. TIGHTLY SEAL SLEEVE AROUND THE PUMP DISCHARGE HOSE WITH A STRAP OR SIMILAR DEVICE. 2. PLACE FILTER BAG ON SUITABLE BASE (E.G., MULCH, LEAF/WOOD COMPOST. WOOD CHIPS, SAND OR STRAW BALES) LOCATED ON A LEVEL OR 57, MAX. SLOPING SURFACE. DISCHARGE TO A STABILIZED AREA EXTEND BASE A MIN. OF 12' FROM EDGES OF BAG. 3. CONTROL PUMPING RATE TO PREVENT EXCESSIVE PRESSURE WITHIN THE FILTER BAG IN ACCORDANCE WITH THE MANUFACTURING RECOMMENDATIONS. AS THE BAG FILLS WITH SEDIMENT, REDUCE PUMPING RATE. 4. REMOVE A: PROPERLY DISPOSE OF FILTER BAG UPON COMPLETION OF PUMPING OPERATIONS OR AFTER BAG HAS REACHED CAPACITY. WHICHEVER OCCURS FIRST. SPREAD THE DEWATERED SEDIMENT FROM THE BAG IN AN APPROVED UPLAND AREA AND STABILIZE WITH SEED AND MULCH BY THE END OF THE WORK DAY. RESTORE THE SURFACE AREA BENEATH THE BAG TO ORIGINAL CONDITION UPON REMOVAL OF THE DEV CE. 5. USE NONWOVEN GEOTEXTILE WITH DOUBLE STITCHED SEAMS USING HIGH STRENGTH THREAD. SIZE SLEEVE TO ACCOMMODATE A MAX. 4' DLI PUMP DISCHARGE HOSE. THE BAG MUST BE MANUFACTURED FROM A NONWOVEN GEOTEXTRE THAT MEETS OR EXCEEDS MIN. AVERAGE ROLL VALUES (MARY) FOR THE FOLLOWING: GRAB TENSILE 250 LB ASTM D-4632 PUNCTURE 150 LB ASTM D-4833 ROW RATE 70 GAL/MIN/FT' ASTM D-4491 PERMITTUTIY (SEC') 1.2 SEC' ASTM D-4491 UV RESISTANCE70% STRENGTH O 500 HOURS ASTM D-4355 APPARENT OPENING SIZE (ADS) 0.15 - 0.18 MM ASTM D-4751 SEAM STRENGTH 90% ASTM D-4632 6. REPLACE FILTER BAG IF BAG CLOGS OR HAS RIPS, TEARS OR PUNCTURES. DURING OPERATION KEEP CONNECTION BETWEEN PUMP HOSE AND FILTER BAG WATER TIGHT. REPLACE BEDDING IF IT BECOMES DISP FILTER BAG DETAIL SCALE: N.T.S. DRAWINGS BY SUBMAR, INC. COPYRIGHT 11 SUBMAR, INC. 2018 ALL RIGHTS RESERVED. 6 MAN I CENTERTOCENTER �I 36* MIN. FENCE POST LENGTH DRIVEN MIN. 16' INTO GROUND 16' MIN. HEIGHT OF WOVEN SLIT FILM GEOTE)TILE • 8' MIN. DEPTH INTO GROUND ELEVATION 36' MIN. FENCE POST LENGTH WOVEN SLIT FILM FENCE POST 18' GEOTEXOLE MIN. ABOVE GROUND UNDISTURBED FLOW— GROUND EMBED GEOTEXTILE MIN. OF 8' VERTICALLY FENCE POST DRIVEN INTO THE GROUND. BACKFILL A MIN. O 16' INTO AND COMPACT THE SOIL ON BOTH SIDES OF GEOTEXTILE THE GROUND CROSS SECTION POSTS STEP 1 w�T STEP 2f STAPLE ` STAPLE STAPLE / STAPLE TWIST POSE TOGETHE STAPLE STAPLE STEP 3` FIN CON FlGURATI STAPLEAL SGPLE JOINING TWO ADIACENT SILT FENCE $ECTIDN$ ITDP VIF W1 SILT FENCE CONSTRucnON SPECIFICATIONS 1. USE WOOD POSTS 1-3/4' x 1-3/4' t 1/16' (MINIMUM) SQUARE CUT OF SOUND QUALITY HARDWOOD. AS AN ALTERNATIVE TO WOODEN POST USE STANDARD 'T' OR 'U' SECTION STEEL POSTS WEIGHING NOT LESS THAN 1 POUND PER LINEAR FOOT. 2. USE 36' MINIMUM POSTS DRIVEN 16' MINIMUM INTO GROUND NO MORE THAN 5' APART. 3. USE WOVEN SLIT FILM GEOTEXTILE AS SPECIFIED IN SECTION H-1 MATERIALS AND FASTEN GEOTEXTILE SECURELY TO UPSLOPE SIDE OF FENCE POSTS WITH WIRE TIES OR STAPLES AT TOP AND MID-SECTION. 4. PROVIDE MANUFACTURER CERTIFICATION TO THE AUTHORIZED REPRESENTATIVE OF THE INSPECTION/ENFDRCEMENT AUTHORITY SHOWING THAT THE GEOTEXTILE USED MEETS THE REQUIREMENTS IN SECTION H-1 MATERIALS. 5. EMBED GEOTEXTILE A MINIMUM OF 8' VERTICALLY INTO THE GROUND. BACKFILL AND COMPACT THE SOIL ON BOTH SIDES OF FABRIC. 6. WHERE 2 SECTIONS OF GEOTEXTILE ADJOIN: OVERLAP, TWIST AND STAPLE TO POST IN ACCORDANCE WITH THIS DETAIL 7. EXTEND BOTH ENDS OF THE SILT FENCE A MINIMUM OF 5' HORIZONTAL UPSLOPE AT 45 DEGREES TO THE MAIN FENCE AUGNMENT TO PREVENT RUNOFF FROM GOING AROUND THE ENDS, 8. REMOVE ACCUMULATED SEDIMENT AND DEBRIS WHEN BULGES DEVELOP IN SILT FENCE OR WHEN SEDIMENT REACHES 25% OF FENCE HEIGHT. REPLACE GEOTEXTILE IF TORN. IF UNDERMINING OCCURS, REINSTALL FENCE. SILT FFNCF OFTAII EY.Sii«S{. �.BIKI Z ED Q1 t m ti ZM = W ca ca W g0�-_U Z)a Z Z 7 :D ON0U? O Z OD M LLI Q rn TyZ3Mi TYPICAL DETAILS C-802 EXISTING GRADE RIPRAP TYPICAL THICKNESS TO BE 1.5 TINE THE UPPER UNIT OF D FILTER LAYER GRAVEL FlLTER SHOULD r 2 BE APPROX. 1/2 THE THICKNESS OF THE GRADE INTO SLOPE RIPRAP LAYER; THE GRAVEL GRADATION IS UNIFORMLY THE A FUNCTION OF THE MEDIAN SIZES OF OF _ THICKNESS OF THE THE AND BASE MATERIAL 11 RIPRAP USED 2 MAX. SLOPE FOR RIPRAP PLACEMENT rn 2' TOE TRENCH - MINIMUM TOE TRENCH DEPTH BELOW CHANNEL INVERT SHALL BE DESIGNED BASED ON SITE CHARACTERISTICS AND TO PREVENT FAILURE DUE TO SCOUR BANK PAVING DETAIL SCALE: N.T.S. BACKFILL EXCAVATED AREA UPON INSTALLATION OF LPSTP LPSTP (LONGITUDINAL PEAKED STONE TOE PROTECTION) 1 EXISTING 1r GRADE • \ 3' v- �o 1' EMBEDDED II NOTE: DIMENSIONS WILL VARY BASED UPON DEPTH OF WATER. LPSTP DETAIL SCALE: N T.S. THESE CONCEPTUAL DRAWINGS ARE PREPARED BY SUBMAR FOR TIMATING PURPOSES ONLY AND ARE NOT CONSTRUCTION DRAWINGS. SECONFIDENTIAL DRAWINGS MAY NOT BE COPIED UNLESS APPROVE BY SUBMAR, INC. COPYRIGHT V SUBMAR, INC. 2018 ALL RIGHTS RESERVED. OVERLAP OR ABUT ROLL EDGES (TYP.) 6" MIN. OVERLAP AT ROLL END (TYP.) 6" DEEP (MIN.) KEY I NTRENCH 1 PREPARED SLOPE (SEEDBED) ... WITH SEED IN PUCE EROSION CONTROL BLANKET CONSTRUCTION SPECIFICATIONS 1. USE TEMP. SOIL STABILIZATION MATTING MADE OF DEGRADABLE (LASTS 6 MOS. MIN.) NATURAL OR MAN-MADE FIBERS (MOSTLY ORGANIC). MAT MUST HAVE UNIFORM THICKNESS & DISTRIBUTION OF FIBERS THROUGHOUT & BE SMOLDER RESISTANT. CHEMICALS USED IN THE MAT MUST BE NON -LEACHING & NON-TOXIC TO VEGETATION & SEED GERMINATION & NON-INJUROUS TO THE SKIN. IF PRESENT, NETTING MUST BE EXTRUDED PLASTIC WITH A MAX MESH OPENING OF 2'x2' & SUFFICIENTLY BONDED OR SEWN ON 2' CENTERS ALONG LONGITUDINAL AXIS OF THE MATERIAL TO PREVENT SEPARATION OF THE NET FROM THE PARENT MATERIAL 2. SECURE MATTING USING STEEL STAPLES, WOOD STAKE OR BIODEGRADABLE EQUIVALENT. STAPLES MUST BE 'U' OR "T' SHAPED STEEL WIRE HAVING A MIN. GAUGE OF NO. 11 AND NO. 8 RESPECTIVELY V SHAPED STAPLES MUST AVERAGE 1' TO 1-1/2' WIDE & BE A MIN. 6' LONG. 'T' SHAPED STAPES MUST HAVE A MIN. 8' MAIN LEG, A MIN. 1' SECONDARY LEG, & A MIN. 4" HEAD. WOOD STAKES MUST BE ROUGH -SAWN HARDWOOD. 12' TO 24' IN LENGTH, 1' x 3' IN CROSS SECTION & WEDGE SHAPED AT THE BOTTOM. 3. PERFORM FINAL GRADING, TOPSOIL APPLICATION, SEEDBED PREP. & PERMANENT SEEDING IN ACCORDANCE WITH SPECS. PLACE MATTING WITHIN 48 HRS OF COMPLETING SEEDING OPERATIONS UNLESS END OF WORKDAY STABILIZATION IS SPECIFIED ON THE APPROVED EROSION & SEDIMENT CONTROL PIAN. 4. UNROLL MATTING DOWN SLOPE. LAY MAT SMOOTHLY & FIRMLY UPON THE SEEDED SURFACE. AVOID STRETCHING THE MATTING. 5. OVERLAP OR ABUT ROLL EDGES PER MANUFACTURING RECOMMENDATIONS. OVERLAP ROLL ENDS BY 6' (MIN.) WITH THE UPSLOPE MAT OVERLAPPING ON TOP OF THE DOWNSLOPE MAT. 6. KEY IN THE UPSLOPE END OF IMT 6' (MIN.) BY DIGGING A TRENCH, PLACING THE MATTING ROLL END IN THE TRENCH, STAPUNG THE MMT IN PUCE, REPLACING THE EXCAVATED MATERIAL, & TAMPING TO SECURE THE MAT END IN THE KEY. 7. STAPLE/STAKE MAT IN A STAGGERED PATTERN ON 4' (MAX.) CENTERS THROUGHOUT & 2' (MAX.) CENTERS ALONG SEAMS, JOINTS & ROLL ENDS. B. ESTABLISH & MAINTAIN VEGETATION SO THAT REQUIREMENTS FOR ADEQUATE VEGETATIVE ESTABLISHMENT ARE CONTINUOUSLY MET IN ACCORDANCE WITH SECTION B-4 VEGETATIVE STABIUZATION. EROSION CONTROL BLANKET DETAIL SCALE: N.T.S. (SHEET TITLE: I TYPICAL DETAILS C-803 APPENDIX B TYPICAL DAM AND PUMP MAINTENANCE DIG PUMP ' SUMP W/INTAKE HOSE FILTER/SCREEN OR I I' SUBMERSIBLE PUMP I'. I�I III WATERBODY Pty ,�- SPOIL CONTAINMENT BERM III �- (SILT FENCE, HAY BALES OR OTHER APPLICABLE I ill MATERIALS) ti I FILTER BAG SPOIL II I II I I II III III II II II II II II TROW ENGINEERING CONSULTANTS INC. 1= NFKMLRA BLVD.. BURS 3 TALL SEE. FL. BSA 5 Trow -NE (om) 1e5-5441 REVISION SCALE I DATE DRAWN ws 01-29-2004 ALS — -RETAIN A MIN. 25' VEGETATIVE BUFFER TO THE EXTENT POSSIBLE ENERGY DISSIPATOR/ SCOUR PROTECTION DAM BACKHOE FLOW MAINTAIN A MINIMUM 25- I VEGETATIVE BUFFER TO THE EXTENT POSSIBLE FOR STREAM EQUIPMENT CROSSINGS, SEE NOTE 14 SEE SHEET 2 FOR NOTES CD COLONIAL PIPELINE COMPANY ATLANTA, GEORGIA TYPICAL DAM AND PUMP MAINTENANCE DIG AT WATERBODY LESS THAN 15' TROW PRDJ. N0.1 DRAWING SHEET THES0050362 COL -0003 1 OF 2 DAM AND PUMP CROSSING THE FOLLOWING IS A SEQUENCE OF CONSTRUCTION AND MITIGATION MEASURES TO BE FOLLOWED AT ALL "DAM AND PUMP" TYPE CROSSINGS. SEQUENCE OF ACTIVITIES STEP 1. IMPLEMENT THE TEMPORARY EROSION AND SEDIMENT CONTROLS. STEP 2. INSTALL DRY STREAM CROSSING MATERIALS. STEP 3. EXCAVATE TRENCH AND INSPECT OR REPLACE PIPE. STEP 4. BACKFILL AND RESTORE STREAM BANKS. STEP 5. REMOVE DAMS. STEP 6. IMPLEMENT PERMANENT EROSION AND SEDIMENTATION CONTROLS. NOTES: SCHEDULE INSTREAM ACTIVITY FOR LOW FLOW PERIODS AND FOR THE APPROPRIATE TIMING WINDOW. 2. MARK OUT AND MAINTAIN LIMITS OF AUTHORIZED WORK AREAS WITH FENCING OR FLAGGING TAPE TO AVOID UNNECESSARY DISTURBANCE OF VEGETATION. ENSURE EQUIPMENT OPERATORS WORKING ON THE CROSSING HAVE BEEN BRIEFED ABOUT THIS PLAN AND THE MEASURES NEEDED TO PROTECT WATER QUALITY. INSTALL PRE—WORK SEDIMENT CONTROL MEASURES AS SPECIFIED IN THE PLAN. ALL NECESSARY EQUIPMENT AND MATERIALS TO BUILD THE DAMS AND TO PUMP WATER MUST BE ON SITE OR READILY AVAILABLE PRIOR TO COMMENCING IN—WATER CONSTRUCTION. 3. CONTRACTOR SHALL SUPPLY, INSTALL AND MAINTAIN SEDIMENT CONTROL STRUCTURES, AS DEPICTED AND ALONG DOWN GRADIENT SIDES OF WORK AREAS AND STAGING AREAS SUCH THAT NO HEAVILY SILT LADEN WATER ENTERS WATERBODY. a. NO HEAVILY SILT LADEN WATER SHALL BE DISCHARGED DIRECTLY OR INDIRECTLY INTO THE WATERBODY. b. EROSION AND SEDIMENT CONTROL STRUCTURE LOCATIONS AS DEPICTED ARE APPROXIMATE AND MAY BE ADJUSTED AS DIRECTED BY THE COMPANY INSPECTOR TO ACTUAL SITE CONDITIONS. c. SILT FENCE OR HAY BALE INSTALLATIONS SHALL INCLUDE REMOVABLE SECTIONS TO FACILITATE ACCESS DURING CONSTRUCTION. UTILIZE HAY BALE BARRIERS ONLY IN LIEU OF A SILT FENCE WHERE FREQUENT ACCESS IS REQUIRED. d. SEDIMENT LADEN WATER FROM TRENCH DEWATERING SHALL BE DISCHARGED TO A WELL VEGETATED UPLAND AREA, INTO A HAY BALE DEWATERING STRUCTURE OR GEOTEXTILE FILTER BAG. e. SEDIMENT CONTROL STRUCTURES MUST BE IN PLACE AT ALL TIMES ACROSS THE DISTURBED PORTIONS OF THE RIGHT—OF—WAY EXCEPT DURING EXCAVATION/INSTALLATION OF THE CROSSING PIPE. 4. TO THE EXTENT POSSIBLE, MAINTAIN A MINIMUM 25 FEET VEGETATIVE BUFFER STRIP BETWEEN DISTURBED AREAS AND THE WATERBODY. INSTALL AND MAINTAIN A SILT FENCE UPSLOPE OF THE BUFFER STRIP ON EACH SIDE OF THE WATERBODY. THE SILT FENCE SHOULD INCORPORATE REMOVABLE "GATES" AS REQUIRED TO ALLOW ACCESS WHILE MAINTAINING EASE OF REPLACEMENT FOR OVERNIGHT OR DURING PERIODS OF RAINFALL. 5. CONSTRUCT A TEMPORARY SUMP UPSTREAM OF THE DAM AND LINE WITH ROCKFILL IF A NATURAL POOL DOES NOT EXIST. INSTALL THE PUMP OR PUMP INTAKE IN THE POOL OR SUMP. DISCHARGE WATER ONTO AN ENERGY DISSIPATOR DOWNSTREAM OF THE WORK AREA. 6, EXCAVATED MATERIAL MUST NOT BE STOCKPILED WITHIN 10 FT. OF THE WATERBODY. THIS MATERIAL MUST BE CONTAINED WITHIN BERM CONTAINMENT, WITH SECONDARY SILT FENCE PROTECTION TO PREVENT SATURATED SOIL FROM FLOWING BACK INTO THE WATERBODY. 7. CHEMICALS, FUELS, LUBRICATING OILS SHALL NOT BE STORED AND NOR SHALL EQUIPMENT BE REFUELED WITHIN 100 FT. OF THE WATERBODY. PUMPS ARE TO BE REFUELED AS PER THE SPCC PLANS. MAINTENANCE OF STREAMFLOW IF THERE IS ANY FLOW IN THE WATERBODY, INSTALL PUMPS TO MAINTAIN STREAMFLOW AROUND THE ISOLATED SECTIONS OF CHANNEL. THE PUMP IS TO HAVE 1.5 TO 2 TIMES THE PUMPING CAPACITY OF ANTICIPATED FLOW. A SECOND STANDBY PUMP OF EQUAL CAPACITY IS TO BE READILY AVAILABLE AT ALL TIMES. AN ENERGY DISSIPATOR IS TO BE BUILT TO ACCEPT PUMP DISCHARGE WITHOUT STREAMBED OR STREAMBANK EROSION. IF THE WORK IS PROLONGED BEYOND ONE DAY THE AREA NEEDS TO BE MONITORED OVERNIGHT. 8. IF A REPLACEMENT, PIPE MAKE—UP AREAS ARE TO BE LOCATED AT LEAST 50 FT. FROM THE WATER'S EDGE (WHERE TOPOGRAPHIC CONDITIONS PERMIT) AND SHALL BE THE MINIMUM AREA NEEDED. 9. DAMS ARE TO BE MADE OF STEEL PLATE, INFLATABLE PLASTIC DAM, SAND BAGS, COBBLES, WELL GRADED COARSE GRAVEL FILL, OR ROCK FILL. DAMS MAY NEED KEYING INTO THE BANKS AND STREAMBED. ENSURE THAT THE DAM AND VEHICLE CROSSING IF NEEDED) ARE LOCATED FAR ENOUGH APART TO ALLOW FORA WIDE EXCAVATION. CAP FLUMES USED UNDER VEHICLE CROSSING DURING DRY CROSSING. 10. DEWATER AREA BETWEEN DAMS IF POSSIBLE. DEWATERING SHOULD OCCUR IN A STABLE VEGETATIVE AREA A MINIMUM OF 50 FT. FROM ANY WATERBODY. THE PUMP DISCHARGE SHOULD BE DISCHARGED ONTO A STABLE SPILL PAD, FILTER BAG OR HAY BALE STRUCTURE TO PREVENT LOCALIZED EROSION. THE DISCHARGE WATER SHOULD ALSO BE FORCED INTO SHEET FLOW IMMEDIATELY BEYOND THE SPILL PAD BY USING HAY BALES AND THE NATURAL TOPOGRAPHY. DISCHARGED WATER SHALL NOT BE ALLOWED TO FLOW INTO ANY WATERBODY OR WETLAND. IF IT IS NOT POSSIBLE TO DEWATER THE EXCAVATION DUE TO SOILS WITH A HIGH HYDRAULIC CONDUCTIVITY, THE EXCAVATION IS TO BE CARRIED OUT IN THE STANDING WATER. PUMP ANY DISPLACED WATER AS DESCRIBED ABOVE TO PREVENT OVERTOPPING OF DAMS. 11. INSPECT/REPAIR PIPELINE AS NEEDED. 12. CONTRACTOR SHALL RESTORE THE STREAM BED AND BANKS TO APPROXIMATE PRE—CONSTRUCTION CONTOURS, BUT NOT TO EXCEED 2:1 SLOPE. a. CONTRACTOR SHALL INSTALL PERMANENT EROSION AND SEDIMENT CONTROL STRUCTURES AS INDICATED ON A SITE SPECIFIC BASIS. IN THE ABSENCE OF SITE SPECIFIC INFOR— MATION, A FLEXIBLE CHANNEL LINER SUCH AS NAG C125 OR C350 WHICH IS CAPABLE OF WITHSTANDING ANTICIPATED FLOW SHALL BE INSTALLED. ALTERNATIVELY, ROCK RIP—RAP SHALL BE INSTALLED. b. ANY MATERIALS PLACED IN THE STREAM TO FACILITATE CONSTRUCTION SHALL BE REMOVED DURING RESTORATION. BANKS SHALL BE STABILIZED AND TEMPORARY SEDIMENT BARRIERS INSTALLED AS SOON AS POSSIBLE AFTER IN—STREAM WORK BUT WITHIN 24 HOURS OF COMPLETING IN—STREAM WORK. c. MAINTAIN A SILT FENCE OR HAY BALE BARRIER ALONG THE WATERBODY UNTIL VEGETATION IS ESTABLISHED IN ADJACENT DISTURBED AREAS. 13. WHEN THE STREAMBED HAS BEEN RESTORED, THE CREEK BANKS ARE TO BE CONTOURED TO A STABLE ANGLE AND PROTECTED WITH EROSION RESISTANT MATERIAL COMPATIBLE WITH FLOW VELOCITY BETWEEN DAMS (E.G.. EROSION CONTROL BLANKETS, CRIBBING, ROCK RIP—RAP, ETC.). THE DAMS ARE TO BE REMOVED DOWNSTREAM FIRST. KEEP PUMP RUNNING UNTIL NORMAL FLOW IS RESUMED. COMPLETE BANK TRIMMING AND EROSION PROTECTION. IF SANDBAGS ARE USED FOR THE DAMS, PLACE AND REMOVE BY HAND TO AVOID EQUIPMENT BREAKING BAGS. 14. TEMPORARY EQUIPMENT CROSSING CAN BE CONSTRUCTED USING EITHER A FLUME CROSSING OR A TEMPORARY BRIDGE. FOR BRIDGE CROSSING DETAILS, REFER TO THE TYPICAL RAILCAR BRIDGE CROSSING OR TYPICAL MAT CROSSING DRAWINGS. TROW ENGINEERING CONSULTANTS INC. 1]00 NETROPoIRAN BLVD., SURE f TALLAHASSEE. FL.. USA 32305 PHONE: (550) .5- REVISION NTS 101-2D-2004 I ALS UD COLONIAL PIPELINE COMPANY ATLANTA, GEORGIA TYPICAL DAM AND PUMP MAINTENANCE DIG AT WATERBODY LESS THAN 15' TROW PRDJ. NO.1 DRAWING SHEET THESOOSD362 I COL—D003a 2 OF 2 =1kiU]E(s3 CPC SOIL EROSION AND SEDIMENT CONTROL PLAN Colonial Pipeline Company Soil Erosion and Sediment Control Plan For Pipeline Maintenance Activities Objective Disturbed areas are to be restored as close as practical to their original contours and conditions so that once vegetation is reestablished, erosion will be reduced to the same or lower level that existed prior to disturbance. Description This section defines the soil erosion and sediment control measures that Colonial Pipeline Company will implement during and after inspection and repairs of the pipeline are complete. The objectives of this plan are to establish general guidelines for controlling erosion and sedimentation and to specify criteria for sensitive or particularly susceptible soil areas. The plan incorporates measures to control erosion and sedimentation, including minimizing cover removal, limiting the time of exposure, limiting the flow of water onto the disturbed right-of-way, and filtering or settling out sediment from water flowing from the right-of-way. The primary objective of the soil erosion and sediment control plan is to reduce the area and duration of soil disturbance and reestablish permanent vegetation as soon after construction as possible, thereby minimizing long-term erosion and sedimentation. Some erosion is inevitable during construction; however, the plan includes measures to reduce erosion to the minimum practical. Colonial Pipeline Company plans to reduce soil erosion and provide sediment control during the repair of the pipeline at the project site by incorporating the following measures: • Water pumped from the construction area as part of the dewatering operation from the excavation will be filtered through silt filtration bags and discharged to a well -vegetated area. • All work will be confined within the existing right-of-way. Staked hay bales and silt fence will be installed around the worksite and maintained until vegetation is established. Proper controls will be added ifnecessary during construction. • All terms and conditions within Nationwide Permit 3 will be followed. • Erosion control measures will be installed prior to conducting any soil disturbing activities associated with the pipeline maintenance activity. • Clearing of vegetation will be kept to an absolute minimum and confined to the existing pipeline easement area. The easement area is 50 feet in width and devoid oflarge trees. The right of way is vegetated with undergrowth grasses and other short vegetation. • Vegetation will be reestablished within disturbed areas and along stream banks as soon as possible upon completion of work. Disturbed areas will be seeded with a wetland seed mixture • All erosion and sediment control measures will be inspected every two weeks at a minimum and after every significant rainfall event of 0.5 inch or more until disturbed areas have been stabilized. Identified damages to control measures must be repaired immediately. Refuse and Waste Disposal Colonial's representative will not allowthe Contractor to discard any litter, including paper, bottles, cans, rags, sacks, welding rod stubs, fuel, crankcase draining, coating materials, equipment, and junk pipe in the ditch or along the right-of-way. All refuse mustbe collected and disposed in accordance with company specifications. Personnel will be instructed regarding the correct procedure for waste disposal. Maintenance/Inspection Procedures The following inspection and maintenance practices will be implemented to maintain erosion andsediment controls: 1. All control measures will be inspected every two weeks at a minimum and following any storm event of 0.5 inch or greater. 2. All control measures will be maintained in good working order. If a repair is necessary, it will be initiated within 24 hours ofthe report. 3. Built-up sediment will be removed from silt fences when it has reached one-third the height ofthe fence. 4. Silt fences will be inspected for depth of sediment, tears, secure attachment of the fabric to the fence posts, and firm placement of the fence posts in the ground. 5. Temporary and permanent seeding and planting will be inspected for bare spots, washouts, and healthy growth. 6. Colonial Pipeline Company will select individuals to be responsible for inspections, maintenance and repair activities, and completion of the inspection and maintenance report. Personnel selected for inspection and maintenance responsibilities will receive training from Colonial Pipeline Company or its representative. Personnel must be trained in all practices necessary for maintaining the erosion and sediment controls used on-site. APPENDIX D 401 & BUFFER PERMITTING PCN SUBMITTAL CHECKLIST Version 1.4 January 9, 2009 401 & Buffer Permitting PCN Submittal Checklist ® The application fee (Checks may be made out to "N.C. Division of Water Resources" - $240.00 for 401 Water Quality Certification with minor impacts - $570.00 for 401 Water Quality Certification with major impacts - Express Review Fee (Amount requested on Acceptance Letter) ® Four (4) complete and collated copies of the PCN Application and supporting documentation (instead of providing 4 copies of the full size plans you may provide two copies of full size plans along with two copies of 11 X 17 plans) N/A Stormwater Management Plan (if applicable — see PCN Form Help File Section E) 1) Please provide three (3) copies of the stormwater management plans along with all supporting information pertaining to this project including the following.- a. ollowing:a. Entire site development/layout plans delineating all drainage areas; b. Design calculation sheets for all proposed BMP(s) sized for both on-site and off-site drainage; c. BMP supplements for each proposed BMP and Required Items Check List (http://portal.ncdenr.org/web/Ir/bmp-manual) along with all required items; d. A Notarized Operation & Maintenance Agreement for each stormwater management facility; e. Detailed construction drawing sheets shall include (i) Erosion and sediment control plans; (ii) Installation and planting schedules for the proposed BMPs; (iii) Appropriately scaled plan views and cross sectional details of all BMPs and associated components — inlet and outlet structures, forebay, respective zones and pertinent elevations. N/A If your project is located within a State implemented Riparian Buffer Rule Area, submit the following along with site plans and PCN form: 1) Three (3) copies of the details for on-site diffuse flow provisions, (refer to http://Portal.ncdenr.org/web/Ir/bmp-manual). N/A DWR Stream Determination Forms for streams on property and DWR determination letter for wetlands or streams (if applicable). The following is the most critical of all the information that you must provide. The quality and detail of the information will often determine the expeditiousness of the review. The following is a checklist of the types of pertinent information required at a minimum: Maps and Plans: ® The most recent version of the 1:24,000 USGS Topographic Map - Please cleanly draw or delineate the site boundaries on the topographic map. ® The most recent version of the bound and published County NRCS Soil Survey Map - (required for projects within the Neuse River Basin, Tar -Pamlico River Basin, Randleman Lake Watershed and the Catawba River Basin, also recommended for all projects) - Please clearly delineate the site boundaries, etc. on the map. If the delineation obscures any of the features, it is recommended that a clean copy be provided. Copies of the Version 1.4 January 9, 2009 current soil survey and/or soil survey map sheets can be obtained from the local NRCS County Office (http://www.nc.nres.usda.gov/). GIS soil layers are not acceptable. ® Vicinity map - Please clearly mark the location and approximate boundaries of the property and project on the map. Please indicate north arrow and scale. Please include applicable road names or State Road numbers. ® The Site Plan - The most critical map to be provided is the site plan. You must provide full sized plans. The following is the minimum list of plans that are typically needed. ® Pre-construction/Pre-existing conditions - This sheet (or sheets) must include: • All jurisdictional and non -jurisdictional wetland, stream, water features, State regulated buffers (delineated into Zones 1 and 2) • Topographic contours with elevations • Any existing structures and impervious areas • Existing utility lines and easements • Existing roads, culverts, and other pertinent features • North arrow and the scale (1":50' scale is recommended). ® Proposed conditions - This sheet (or sheets) must include: • All jurisdictional and non -jurisdictional wetland, stream, water features, State regulated buffers (delineated into Zones 1 and 2) • Lot layout (if a subdivision or commercial development is proposed) - lots must be developable without further impacts to jurisdictional and non -jurisdictional wetlands, streams, water features, and State regulated buffers. Building envelopes must be provided when streams, wetlands, riparian buffers, or water features exist on a lot • All built -out structures and impervious cover • Final grading contours with elevations • All utilities and easements (including septic fields on all lots within 100 feet of stream, wetland, or water features - if applicable) • Impacted areas — these should correspond with the Impact numbers listed on your PCN form. N/A Drainage Plans - Final drainage plans must include the following: • Locations and pertinent elevations and sizes of the stormwater collection system and drainage ways • All inlets and outlets must also be shown with pertinent elevations (All outlets to wetlands must be at a non-erosive velocity, generally less than 2 ft/sec during the peak flow from the 10 -yr storm) • Scaled stormwater BMPs must also be indicated as required by DWR rules and policies • In certain cases (see Section E of PCN form), final stormwater management plans must also be provided (see Stormwater Management Plan Checklist) ® Proposed Impacts - All impacts to jurisdictional and non -jurisdictional wetland, stream, water features, and State regulated buffers must be shown and labeled on the site plans at a scale no smaller than 1" = 50'. All excavation, fill, flooding, stabilization, and other impacts that will be conducted in or near jurisdictional and non -jurisdictional wetland, stream, water features, and State regulated buffers must be indicated. Please provide cross sectional details showing the provisions for aquatic life passage (burial of culvert 20% for culverts <_ 48 inches, and 1 -foot for culverts > 48 inches). Version 1.4 January 9, 2009 Wetland Impacts: N/A ❑ Precise grading and final elevation contours must be provided. Existing vegetation and any clearing must be specified. ❑ All subsurface utility lines must indicate the location of anti -seep collars. Construction detail for anti -seep collars must be provided. ❑ Roadway or other crossings of riparian wetlands may require floodway culverts to maintain existing hydrological conditions. ❑ Plans should show that the hydrology of remaining wetlands on the site will be maintained. Stream Impacts: ® Stream impacts must be clearly shown on the plans. The centerline as well as the banks of the stream must be surveyed or located by GPS for the portion of the stream to be impacted. N/A The inlet and the outlet of all culverts should be aligned with the stream as much as possible. Inlet and outlet elevations and streambed elevations should be indicated. Any inlet or outlet protection must be shown and enumerated on the impact map(s). N/A For bottomless culverts or other spans, a vertical cross section should be provided that shows the minimum distance from each span to each stream bank, the stream cross section, the height of the span above the stream and the minimum distance from the edge of each footer to each stream bank. Additionally, please provide a signed and sealed geotechnical report of subsurface soils at the proposed bottomless culvert location. The report must comply with the Division of Highways — Guidelines for Drainage Studies and Hydraulic Design, prepared by A.L. Hankins, Jr., State Hydraulics Engineer - 1999. N/A Multiple culverts or sectioned box culverts typically require the use of sills, off- setting or other means to match the cross section of the existing stream (in order to maintain stream stability and provide aquatic life passage). A vertical cross section of the culverts should be shown overlain with the up and downstream stream cross section including the stream flood -prone area. N/A Impacts associated with dam construction must indicate and enumerate all fill associated with the dam footprint, spillway and any bank stream bank stabilization. The length of stream impounded must also be indicated and enumerated. APPENDIX E USACE WILMINGTON DISTRICT PCN FORM O�O� W AT �q�G 7 I I > � I�.�I o < Office Use Only: Corps action ID no. DWQ project no. Form Version 1.3 Dec 10 2008 Page 1 of 11 PCN Form — Version 1.3 December 10, 2008 Version Pre -Construction Notification (PCN) Form A. Applicant Information 1. Processing 1 a. Type(s) of approval sought from the Corps: El Section 404 Permit El Section 10 Permit ®N/A 1 b. Specify Nationwide Permit (NWP) number: 3 (a) & (c) or General Permit (GP) number: 1 c. Has the NWP or GP number been verified by the Corps? ❑ Yes ® No 1 d. Type(s) of approval sought from the DWQ (check all that apply): ® 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit ❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization 1 e. Is this notification solely for the record because written approval is not required? For the record only for DWQ 401 Certification: ❑ Yes ® No For the record only for Corps Permit: ® Yes ❑ No 1f. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or in -lieu fee program. ❑ Yes ® No 1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h below. ❑ Yes ® No 1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes ® No 2. Project Information 2a. Name of project: Colonial Pipeline Company Line 2 Exposure Rowan Co. NC 2018 2b. County: Rowan 2c. Nearest municipality / town: Salisbury 2d. Subdivision name: N/A 2e. NCDOT only, T.I.P. or state project no: N/A 3. Owner Information 3a. Name(s) on Recorded Deed: Name on Easement Agreement: Addie J. Fraley Cauble; Please see PCN Form Attachment A — Easement Agreement. 3b. Deed Book and Page No. N/A 3c. Responsible Party (for LLC if applicable): N/A 3d. Street address: N/A 3e. City, state, zip: Salisbury (Rowan County), North Carolina 28147 3f. Telephone no.: N/A 3g. Fax no.: N/A 3h. Email address: N/A Page 1 of 11 PCN Form — Version 1.3 December 10, 2008 Version 4. Applicant Information (if different from owner) 4a. Applicant is: ❑ Agent ® Other, specify: 4b. Name: John Wyatt 4c. Business name (if applicable): Colonial Pipeline Company (CPC) 4d. Street address: 5251 Hwy. 153 Suite C #365 4e. City, state, zip: Hixson, TN 37343 4f. Telephone no.: 770-819-3557 4g. Fax no.: 770-819-3567 4h. Email address: Jwyatt@colpipe.com 5. Agent/Consultant Information (if applicable) 5a. Name: Michael Barfield 5b. Business name (if applicable): Corblu Ecology Group LLC. 5c. Street address: 3225 South Cherokee Lane, Bldg 800 5d. City, state, zip: Woodstock, Georgia 30188 5e. Telephone no.: 770-591-9990 5f. Fax no.: 770-591-9993 5g. Email address: Mbarfield@corblu.com Page 2 of 11 B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): 37159_327 001 (Parcel No.) 1 b. Site coordinates (in decimal degrees): Latitude: 35.704961 Longitude: - 80.509357 (DD.DDDDDD) (-DD.DDDDDD) 1 c. Property size: 1.25 -acre project area 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to Jump and Run Branch proposed project: 2b. Water Quality Classification of nearest receiving water: C 2c. River basin: map is available at Yadkin Pee Dee River Basin http://h2o.enr.state.nc.us/admin/maps/ 3. Project Description 3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application: The work is to be conducted within CPC's existing mowed and maintained right-of-way (ROW). The stream has experienced significant erosion of the left bank (outside bend) from Hurricane Florence (i.e., heavy rainfall) which is the cause of the pipeline exposure. 3b. List the total estimated acreage of all existing wetlands on the property: N/A — No wetlands present within project area. 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: Approximately 125 linear feet of perennial stream 3d. Explain the purpose of the proposed project: Significant precipitation associated with Hurricane Florence has resulted in stream bed and bank erosion to the unnamed perennial stream within CPC's ROW exposing CPC's Line 2. CPC proposes to inspect the exposed line and replace the required protective cover over the pipeline using pre -cast revetment mats. 3e. Describe the overall project in detail, including the type of equipment to be used: CPC intends to inspect the exposed pipeline and replace the required protective cover over the pipeline through the use of pre -cast revetment mats. To re-establish the protective cover CPC intends to conduct the following: 1) excavate the exposure on Line 2; 2) inspect and make repairs to Line 2 as necessary; 3) backfill the excavation area; and 4) restore the stream to approximate pre -erosion contours and elevations using returned excavated material and revetment mats keyed into the stream bed and bank in a manner that maintains grade and stream flow conditions. To minimize sedimentation to the unnamed perennial stream during the above-mentioned maintenance activity, dams constructed of sand bags, steel plates, or water -inflatable plastic dams will be temporarily placed upstream of the maintenance area. The stream flow will be temporarily pumped around the maintenance area, discharging immediately downstream via an energy dissipater to prevent stream scour. The pump used will be sufficiently sized to accommodate the anticipated stream flow. The temporarily excavated soils will be stored within the adjacent upland areas and returned to the excavated trenches, and approximate pre -erosion contours will be restored following completion of the maintenance activity. It is our understanding once the required protective pipeline cover (pre -cast revetment mats) is keyed into the streambed in a manner that maintains existing grade and stream flow, the temporary dams will be removed, and normal streamflow restored. Rip rap used to stabilize the revetment mats within the stream bed will be placed so the finished top elevation of the rip rap does not exceed that of the original stream bed, and any rip rap utilized for bank stabilization will be placed on filter cloth as required. CPC's standard erosion control practices will be employed. Specifically, the disturbed areas along the stream bank will be revegetated with a grass seed mix and stabilized with straw and silt fence. Page 3 of 11 PCN Form —Version 1.3 December 10, 2008 Version 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / project (including all prior phases) in the past? Comments: El Yes ❑ No ®Unknown 4b. If the Corps made the jurisdictional determination, what type of determination was made? El Preliminary Final 4c. If yes, who delineated the jurisdictional areas? Name (if known): Agency/Consultant Company: Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. 5. Project History 5a. Have permits or certifications been requested or obtained for this project (including all prior phases) in the past? ❑ Yes ® No ❑ Unknown 5b. If yes, explain in detail according to "help file" instructions. 6. Future Project Plans 6a. Is this a phased project? ❑ Yes ® No 6b. If yes, explain. Page 4 of 11 C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ❑ Wetlands ® Streams - tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. 2b. 2c. 2d. 2e. 2f. Wetland impact Type of jurisdiction number — Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact Permanent (P) or (if known) DWQ — non -404, other) (acres) Temporary T W1 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W2 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W3 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W4 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W5 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W6 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ 2g. Total wetland impacts 2h. Comments: 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted. 3a. 3b. 3c. 3d. 3e. 3f. 3g. Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact number - (PER) or (Corps - 404, 10 stream length Permanent (P) or intermittent DWQ — non -404, width (linear Temporary (T) (INT)? other) (feet) feet) S1 ®P ❑ T Submar matting and rip rap bank Unnamed Perennial Stream6 ® PER ❑INT ® Corps El DWQ feet 89 If stabilization Unnamed S2 ❑ P ® T Workspace (dam intermittent ® PER ® Corps 6 feet 10 If and pump) tributary to Swift ❑ INT ❑ DWQ Creek S3 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S4 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S5 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S6 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ 3h. Total stream and tributary impacts 99 If 3i. Comments: Page 5 of 11 4. Open Water Impacts If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of the U.S. then indivi ually list all open water impacts below. 4a. 4b. 4c. 4d. 4e. Open water Name of waterbody impact number - (if applicable) Type of impact Waterbody type Area of impact (acres) Permanent (P) or Temporary T 01 ❑P❑T 02 ❑P❑T 03 ❑P❑T 04 ❑ PEI T 0. Total open water impacts 4g. Comments: 5. Pond or Lake Construction If pond or lake construction proposed, then complete the chart below. 5a. 5b. 5c. 5d. 5e. Wetland Impacts (acres) Stream Impacts (feet) Upland Pond ID Proposed use or purpose (acres) number of pond Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 5f. Total 5g. Comments: 5h. Is a dam high hazard permit required? ❑ Yes ❑ No If yes, permit ID no: 5i. Expected pond surface area (acres): 5j. Size of pond watershed (acres): 5k. Method of construction: 6. Buffer Impacts (for DWQ) If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If any impacts require mitigation, then you MUST fill out Section D of this form. 6a. ❑Neuse ❑ Tar -Pamlico ® Other: Yadkin Pee Dee Project is in which protected basin? ❑ Catawba ❑ Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number - Reason Buffer Zone 1 impact Zone 2 impact Permanent (P) or for Stream name mitigation (square feet) (square feet) Temporary T impact re uired. B1 ❑P❑T F-1 Yes ❑ No El Yes B2 ❑P❑T ❑ No El Yes B3 ❑P❑T ❑ No 6h. Total buffer impacts N/A N/A 6i. Comments: No riparian buffer protection rules within the Yadkin Pee Dee Basin. Page 6 of 11 D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. Significant precipitation associated with Hurricane Florence has resulted in stream bed and bank erosion in the unnamed perennial stream within CPC's ROW, exposing CPC's Line 2. The exposure and lack of surface pipeline protection at this project location has resulted in conditions that may lead to potential damage to CPC's petroleum pipeline Line 2. Further, these conditions are not consistent with CPC's or regulatory requirements for pipeline protection. Therefore, CPC is required to conduct the work for the safety of the pipeline (unavoidable work). b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. CPC will only conduct work within their mowed and maintained ROW, thereby minimizing impacts to the greatest extent possible. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State? ❑ Yes ® No 2b. If yes, mitigation is required by (check all that apply): ❑ DWQ ❑ Corps 2c. If yes, which mitigation option will be used for this project? ❑ Mitigation bank El Payment to in -lieu fee program ❑ Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a. Name of Mitigation Bank: 3b. Credits Purchased (attach receipt and letter) Type Quantity 3c. Comments: 4. Complete if Making a Payment to In -lieu Fee Program 4a. Approval letter from in -lieu fee program is attached. ❑ Yes 4b. Stream mitigation requested: linear feet 4c. If using stream mitigation, stream temperature: ❑ warm ❑ cool ❑cold 4d. Buffer mitigation requested (DWQ only): square feet 4e. Riparian wetland mitigation requested: acres 4f. Non -riparian wetland mitigation requested: acres 4g. Coastal (tidal) wetland mitigation requested: acres 4h. Comments: 5. Complete if Using a Permittee Responsible Mitigation Plan 5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan. Page 7 of 11 PCN Form — Version 1.3 December 10, 2008 Version 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ 6a. Will the project result in an impact within a protected riparian buffer that requires ❑ Yes ® No buffer mitigation? If yes, you will have to fill out this entire form — please contact the State for more information. 6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the amount of mitigation required. 6c. 6d. 6e. Zone Reason for impact Total impact Multiplier Required mitigation (square feet) (square feet) Zone 1 3 (2 for Catawba) Zone 2 1.5 6f. Total buffer mitigation required: 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank, permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund). 6h. Comments: Page 8 of 11 E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1a. Does the project include or is it adjacent to protected riparian buffers identified ❑ Yes ® No within one of the NC Riparian Buffer Protection Rules? 1 b. If yes, then is a diffuse flow plan included? If no, explain why. ❑ Yes No Comments: 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? 0% 2b. Does this project require a Stormwater Management Plan? ❑ Yes ® No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: This is a maintenance activity for an existing petroleum pipeline and does not involved the construction of any roads or structures. 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: ❑ Certified Local Government 2e. Who will be responsible for the review of the Stormwater Management Plan? ❑ DWQ Stormwater Program ❑ DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? Rowan County ❑ Phase II 3b. Which of the following locally -implemented stormwater management programs ❑ NSW ❑ USMP apply (check all that apply): ❑ Water Supply Watershed ❑ Other: 3c. Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ® No attached? 4. DWQ Stormwater Program Review ❑ Coastal counties ❑ HQW 4a. Which of the following state -implemented stormwater management programs apply ❑ ORW ❑ Session Law 2006-246 (check all that apply): ® Other: N/A- Pipeline Maintenance 4b. Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ® No attached? 5. DWQ 401 Unit Stormwater Review 5a. Does the Stormwater Management Plan meet the appropriate requirements? ® Yes ❑ No 5b. Have all of the 401 Unit submittal requirements been met? ® Yes ❑ No Page 9 of 11 PCN Form — Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1 a. Does the project involve an expenditure of public (federal/state/local) funds or the ❑ Yes ® No use of public (federal/state) land? 1 b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State ❑ Yes ❑ No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1 c. If you answered "yes" to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval ❑ Yes ❑ No letter.) Comments: 2. Violations (DWQ Requirement) 2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ❑ Yes ® No or Riparian Buffer Rules (15A NCAC 2B .0200)? 2b. Is this an after -the -fact permit application? ❑ Yes ® No 2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s): 3. Cumulative Impacts (DWQ Requirement) 3a. Will this project (based on past and reasonably anticipated future impacts) result in ❑ Yes ® No additional development, which could impact nearby downstream water quality? 3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy. If you answered "no," provide a short narrative description. 4. Sewage Disposal (DWQ Requirement) 4a. Clearly detail the ultimate treatment methods and disposition (non -discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. N/A — This pipeline maintenance project will not involve the generation of any wastewater necessitating a treatment method. Page 10 of 11 PCN Form — Version 1.3 December 10, 2008 Version 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or ❑ Yes ® No habitat? 5b. Have you checked with the USFWS concerning Endangered Species Act ® Yes ❑ No impacts? F-1 Raleigh 5c. If yes, indicate the USFWS Field Office you have contacted. ® Asheville 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? Potential species occurrences for Johnston County, North Carolina were reviewed from the USFWS ECOS website (https://ecos.fws.gov/ecp/) prior to visiting the site. Also an official IPaC species list was requested for the project area from the Asheville Field Office on 10/18/2018. Please see PCN Form Attachment B - IPaC Report. 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? ❑ Yes ® No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? https://www.fisheries.noaa.gov/resource/map/essential-fish-habitat-mapper 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation ❑ Yes ® No status (e.g., National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b. What data sources did you use to determine whether your site would impact historic or archeological resources? Site data collected from http://www.nationalregisterofhistoricpIaces.com/nc/Johnston/state.htm1. Please see PCN Form Attachment C - NRHP Map. 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA -designated 100 -year floodplain? ❑ Yes ® No 8b. If yes, explain how project meets FEMA requirements: 8c. What source(s) did you use to make the floodplain determination? Applicant/Agent's Printed Name Date Applicant/Agent's Signature (Agent's signature is valid only if an authorization letter from the applicant isprovided.) Pagel 1 of 11 John M. Wyatt Southeast District Environmental Program Manager April 25, 2018 US Army Corps of Engineers 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 DWQ Raleigh Regional Office 1628 Mail Service Center Raleigh, NC 27699-1628 Subject: Authorization Letter To Whom It May Concern: Colonial Pipeline Company Tel: (404) 713-9270 Colonial Pipeline Company (CPC) gives authorization to Corblu Ecology Group to serve as our agent regarding North Carolina Division of Water Quality (DWQ)/U.S. Army Corps of Engineers (USACE) Pre - Construction Notification (PCN) Application Forms. Should you have any questions or concerns please contact me at the letterhead address or telephone number. Sincerely, John M. Wyatt Southeast District Environmental Program Manager Colonial Pipeline Company 5251 Hwy 153 Suite C #365 Hixson, TN 37343 PCN FORM ATTACHMENT A — Easement Agreement LL #10:90 Map # 146 RIGHT OF WAY EASEMENT OPTION FOR AND IN CONSIDERATION OF_ Ten and Nnl1QQ_----------- --nnLLARS, the receipt of which is hereby acknowledged, and the further consideration ofThirty and N 100—___OL.LARS, to be paid within the period hereinafter provided, Addie J. ?P110Y Cauble, a widow hereinafter referred to as Grantors (whether one or more), do hereby grant and convey unto COLONIAL PIPELINE COMPANY,a Delaware corporation, its successors and assigns, hereinafter referred to as Grantee, an easement for a pipeline right of way with the right to construct, maintain, inspect, operate, protect, repair, replace, change the size of, and remove a pipeline for the transportation of liquids and/or gases on, over, and through the following described lands, of which Grantors warrant they are the owners in fee simple, situated in 20W)n County, State of North CarnI i na.to-wit: 13 -An es, mare a r lesgr._de-scri bed in a Deed riated p1r V 8 1926, 1��4�ded in Book 190_ pacle_19; and 27 acres_, more or less_ descrihed in a Deed dated January 12, 1918recordad in Rant; 1.48, Page -e 1 24 and 11 a— crncr mond _nr leGsdaecri ha;l i n a nepSi_-_ _ datarl pejOr azy IS 1914�recolded .]Ii_Book 13B_,._..pagL} 223, in the office of the Register of_.D.P_e.cl;z 4.f Rowan County, North Carolina.--- ---- - - together with the right of unimpaired access to said pipeline and the right of ingress and egress on, over, and through the above-described land for any and all purposes necessary and incident to the exercise by said Grantee of the rights granted hereunder. The said Grantors shall have the right to use and enjoy the above-described land except as the same may be necessary for the purposes herein granted to the said Grantee. Grantors agree not to build, create, or construct any obstructions, engineering works, or other structures over said pipeline nor permit the same to be done by others. In addition to the above consideration. Grantee agrees to repair or to pay for any actual damage which may be done to growing crops, timber, fences, buildings, or other structures directly to by Grantee exercising any rights herein granted. Any pipeline constructed by Grantee across any portion of the above-described land which is under cultivation shall, at the time of the construction thereof, be buried to such depth as will not interfere with Grantors' use of said land for normal cultivation required for the planting and tending of crops; except that Grantee, at its option, may construct its pipeline above the channel of any natural or man-made stream, ravine, ditch, or other water course. As a part of the consideration hereinabove set forth, Grantors hereby grant unto said Grantee, its successors and assigns, the right at any time to construct, operate, and maintain an additional pipeline or pipelines substantially parallel to the first pipeline constructed rod by Grantee on Grantors' land above-described and Grantee agrees to pay Grantors the sum of $_l,W PPr/ for each additionrl Pipeline constructed, said payment to be made before construction commences. Said additional pipeline or pipelines shall be subject to Ile same rights, privileges, and conditions, as set forth in this instrument. This Option shall extend for a period oC-tVel4H._---- months from the date hereof, during which time Grantee may enter upon the premises for making surveys and performing work incidental thereto to locate the route of the initial pipeline to be constructed. G.antee may exercise this Option at any time during such period by paying to Grantors the aforesaid further consideration of $_317)—M , and upon making such payment this Optidn shall become an indefeasible right of way easement to be held by Grantee, its successors and assigns. If Grantee fails to pay said further consideration within said, tV91V6 month .period, this Option,shall cease and terminate. .,y It is agreed that any payment hereunder may be made direct to said Grantors, or any one of them, or by deposftinit.p.,tgnt to the credit of said Grantors, or any one of them, in the�1�oyia Baal: & Trust CO.Rank gf_3^lisbury, '7or'1 W -Cal. �litn and payment so made shall be deemed and considered as j)hyment to each of said Grantors. The rights herein granted may be assigned in whole or in part. The terms, conditions, and provisions herein shall extend to and be binding upon the heirs, executors, administrators, personal representatives, successors, and assigns of the parties hereto. IN WITNESS WHEREOF, the Grantors herein have hereunto set their hands and seals this ----day of 1unA , 19-6_Z_. (Seal) Signed, seated, and delivered in the prase of . � C. 13. itaberor r. (Seal) Addie J- FFraley utile (Seal) u le Grantors CPC -101 INDIVIDUAL ACKNOWLEDGMENT STATE OF NORTH CAROLINASS COUNTY OF Rrtt inn I I Zora N. Strong, a Notary Public do hereby certify Addie J. Fraley Cauble _ Personally appeared before me this day and acknowledged the due execution of the foregoing instrument. Witness my hand and official seal this, the 6th day of June h 19-k2 My,"Iem.`oCoffige expires on the 9th day of ZDra ^I. Strong Notary Pubu& Ausiust 1962 a p f NORTH CAROLINAt )ZOWAN COUNTY,," r Vi Ae foregoinggccertificate. of Public of _ __ /`gWtLr✓ _ _ County, N. C., is ._ _. adjudged to be correct. Let the instrument and the certificate . be registered. This the. _ cJ�i....._. da�yof.�t_ _. J 19.4,.. REGISTER OF DEEDS OFFICE, ROWAN COUNTY. IM./Deputy Clerk of Superior Court Filed for registration J111Y-31st .__ 19 62 at 1.21.... _ . o'clock P. M. and recorded in .__ DEED. __.. _ Book 46 Pa . ��OF DEED PROOF BY SUBSCRIBING WITNESS STATE OF NORTH CAROLINA 1 SS COUNTY OF J} of County, state certify personally appeared before me this day, and being duly sworn, state that in his Witness my hand and official seal, this day My term of office expires on the day of 19� the foregoing instrument. 19— Notary Public C) C-1 136 QJ /t. 3 � u• yr o .s: a �S ce� Q�z <_ m U PCN FORM ATTACHMENT B — IPaC Report to ly crw� a Nii.purr: United States Department of the Interior`"K A FISH AND WILDLIFE SERVICE ,m Asheville Ecological Services Field Office 160 Zillicoa Street Asheville, NC 28801-1082 Phone: (828) 258-3939 Fax: (828) 258-5330 hq2://www.fws.izov/nc-es/es/couniyfr.html In Reply Refer To: October 18, 2018 Consultation Code: 04EN1000-2019-SLI-0025 Event Code: 04EN1000-2019-E-00052 Project Name: Line 2 Exposure Rowan Co. NC Subject: List of threatened and endangered species that may occur in your proposed project location, and/or may be affected by your proposed project To Whom It May Concern: The attached species list identifies threatened, endangered, proposed and candidate species, as well as proposed and final designated critical habitat, that may occur within the boundary of your proposed project and/or may be affected by your proposed project. Although not required by section 7, many agencies request species lists to start the informal consultation process and begin their fulfillment of the requirements under section 7(c) of the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 etseq.). This list, along with other helpful resources, is also available on the U.S. Fish and Wildlife Service (Service) Asheville Field Office's (AFO) website: hgps://www.fws. ovg /raleigh/species/ cniylist/nc—counties.html. list/nc—counties.html. The AFO website list includes "species of concern" species that could potentially be placed on the federal list of threatened and endangered species in the future. Also available are: Design and Construction Recommendations htt)s://www.fws.eov/asheville/htmis/t)roject review/Recommendations.html Optimal Survey Times for Federally Listed Plants hgps://www.fws.izov/nc-es/plant/Dlant survey html Northern long-eared bat Guidance hgps://www.fws.gov/asheville/htmis/project review/NLEB_in_WNC.html Predictive Habitat Model for Aquatic Species hqps://www.fws.gov/asheville/htmls/Maxent/Maxent.html 10/18/2018 Event Code: 04EN 1 000-2019-E-00052 New information based on updated surveys, changes in the abundance and distribution of species, changed habitat conditions, or other factors could require modifications of these lists. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the Act, the accuracy of the species lists should be verified after 90 days. This verification can be completed formally or informally as desired. The Service recommends that verification be completed by visiting the ECOS-IPaC website or the AFO website (the AFO website dates each county list with the day of the most recent update/change) at regular intervals during project planning and implementation for updates to species lists and information. An updated list may be requested through the ECOS-IPaC system by completing the same process used to receive the enclosed list or by going to the AFO website. The purpose of the Act is to provide a means whereby threatened and endangered species and the ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the Act and its implementing regulations (50 CFR 402 et seq. ), Federal agencies are required to utilize their authorities to carry out programs for the conservation of threatened and endangered species and to determine whether projects may affect threatened and endangered species and/or designated critical habitat. A Biological Assessment is required for construction projects (or other undertakings having similar physical impacts) that are major Federal actions significantly affecting the quality of the human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2) (c)). For projects other than major construction activities, the Service suggests that a Biological Evaluation similar to a Biological Assessment be prepared to determine whether the project may affect listed or proposed species and/or designated or proposed critical habitat. Recommended contents of a Biological Assessment are described at 50 CFR 402.12 and on our office's website at https://www.fws.gov/asheville/htmis/project review/assessment®guidance.html. If a Federal agency (or their non-federal representative) determines, based on the Biological Assessment or Biological Evaluation, that listed species and/or designated critical habitat may be affected by the proposed project, the agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service recommends that candidate species, proposed species, and proposed critical habitat be addressed within the consultation. More information on the regulations and procedures for section 7 consultation, including the role of permit or license applicants, can be found in the "Endangered Species Consultation Handbook" at: http:// www.fws.gov/endanizered/esa-libraI3L/pdf/TOC-GLOS.PDF. Though the bald eagle is no longer protected under the Endangered Species Act, please be aware that bald and golden eagles are protected under the Bald and Golden Eagle Protection Act (16 U.S.C. 668 et seq.), and projects affecting these species may require additional consultation (see https://www.fws.gov/southeast/our-services/permits/eagles. Wind energy projects should follow the wind energy guidelines (http://www.fws.gov/windenergyo for minimizing impacts to migratory birds (including bald and golden eagles) and. bats. Guidance for minimizing impacts to migratory birds for projects including communications towers (e.g., cellular, digital television, radio, and emergency broadcast) can be found at: http:// 10/18/2018 Event Code: 04EN 1 000-2019-E-00052 www.fws. og v/mi rg_atorybirds/CurrentBirdlssues/Hazards/towers/towers.htm; http://www.towerkill.com; and http://www.fws. og v/migratorybirds/CurrentBirdlssues/Hazards/ towers/comtow.html. We appreciate your concern for threatened and endangered species. The Service encourages Federal agencies to include conservation of threatened and endangered species into their project planning to further the purposes of the Act. Please include the Consultation Tracking Number in the header of this letter with any request for consultation or correspondence about your project that you submit to our office. Attachment(s): • Official Species List • Migratory Birds ■ Wetlands 10/18/2018 Event Code: 04EN 1 000-2019-E-00052 Official Species List This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the requirement for Federal agencies to "request of the Secretary of the Interior information whether any species which is listed or proposed to be listed may be present in the area of a proposed action". This species list is provided by: Asheville Ecological Services Field Office 160 Zillicoa Street Asheville, NC 28801-1082 (828) 258-3939 10/18/2018 Event Code: 04EN 1 000-2019-E-00052 2 Project Summary Consultation Code: 04EN1000-2019-SLI-0025 Event Code: 04EN1000-2019-E-00052 Project Name: Line 1 Exposure Rowan Co. NC Project Type: OIL OR GAS Project Description: Pipeline exposure maintenance Project Location: Approximate location of the project can be viewed in Google Maps: https: www.google.com/maps/place/35.705347204488305N80.50861535563023W Counties: Rowan, NC 10/18/2018 Event Code: 04EN1000-2019-E-00052 Endangered Species Act Species There is a total of 2 threatened, endangered, or candidate species on this species list. Species on this list should be considered in an effects analysis for your project and could include species that exist in another geographic area. For example, certain fish may appear on the species list because a project could affect downstream species. IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA Fisheries!, as USFWS does not have the authority to speak on behalf of NOAA and the Department of Commerce. See the "Critical habitats" section below for those critical habitats that lie wholly or partially within your project area under this office's jurisdiction. Please contact the designated FWS office if you have questions. 1. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce. Mammals NAME STATUS Northern Long-eared Bat Myotis septentrionalis Threatened No critical habitat has been designated for this species. Species profile: hgps:Hecos.fws.gov/ecp/species/9045 Flowering Plants NAME STATUS Schweinitz's Sunflower Helianthus schweinitzii Endangered No critical habitat has been designated for this species. Species profile: h!Ws:Hecos.fws.gov/ecp/species/3849 Critical habitats THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S JURISDICTION. 10/18/2018 Migratory Birds Event Code: 04EN1000-2019-E-00052 Certain birds are protected under the Migratory Bird Treaty Act! and the Bald and Golden Eagle Protection Act2. Any person or organization who plans or conducts activities that may result in impacts to migratory birds, eagles, and their habitats should follow appropriate regulations and consider implementing appropriate conservation measures, as described below. 1. The Migratory Birds Treaty Act of 1918. 2. The Bald and Golden Eagle Protection Act of 1940. 3. 50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a) The birds listed below are birds of particular concern either because they occur on the USFWS Birds of Conservation Concern (BCC) list or warrant special attention in your project location. To learn more about the levels of concern for birds on your list and how this list is generated, see the FAQ below. This is not a list of every bird you may find in this location, nor a guarantee that every bird on this list will be found in your project area. To see exact locations of where birders and the general public have sighted birds in and around your project area, visit the E -bird data mapping tool (Tip: enter your location, desired date range and a species on your list). For projects that occur off the Atlantic Coast, additional maps and models detailing the relative occurrence and abundance of bird species on your list are available. Links to additional information about Atlantic Coast birds, and other important information about your migratory bird list, including how to properly interpret and use your migratory bird report, can be found below. For guidance on when to schedule activities or implement avoidance and minimization measures to reduce impacts to migratory birds on your list, click on the PROBABILITY OF PRESENCE SUMMARY at the top of your list to see when these birds are most likely to be present and breeding in your project area. NAME Kentucky Warbler Oporornis formosus This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Prairie Warbler Dendroica discolor This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Prothonotary Warbler Protonotaria citrea This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. BREEDING SEASON Breeds Apr 20 to Aug 20 Breeds May 1 to Jul 31 Breeds Apr 1 to Jul 31 10/18/2018 Event Code: 04EN 1 000-2019-E-00052 2 NAME BREEDING SEASON Red-headed Woodpecker Melanerpes erythrocephalus Breeds May 10 to Sep This is a Bird of Conservation Concern (BCC) throughout its range in the 10 continental USA and Alaska. Rusty Blackbird Euphagus carolinus Breeds elsewhere This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Wood Thrush Hylocichla mustelina Breeds May 10 to Aug This is a Bird of Conservation Concern (BCC) throughout its range in the 31 continental USA and Alaska. Probability Of Presence Summary The graphs below provide our best understanding of when birds of concern are most likely to be present in your project area. This information can be used to tailor and schedule your project activities to avoid or minimize impacts to birds. Please make sure you read and understand the FAQ "Proper Interpretation and Use of Your Migratory Bird Report" before using or attempting to interpret this report. Probability of Presence (E) Each green bar represents the bird's relative probability of presence in the lOkm grid cell(s) your project overlaps during a particular week of the year. (A year is represented as 12 4 -week months.) A taller bar indicates a higher probability of species presence. The survey effort (see below) can be used to establish a level of confidence in the presence score. One can have higher confidence in the presence score if the corresponding survey effort is also high. How is the probability of presence score calculated? The calculation is done in three steps: 1. The probability of presence for each week is calculated as the number of survey events in the week where the species was detected divided by the total number of survey events for that week. For example, if in week 12 there were 20 survey events and the Spotted Towhee was found in 5 of them, the probability of presence of the Spotted Towhee in week 12 is 0.25. 2. To properly present the pattern of presence across the year, the relative probability of presence is calculated. This is the probability of presence divided by the maximum probability of presence across all weeks. For example, imagine the probability of presence in week 20 for the Spotted Towhee is 0.05, and that the probability of presence at week 12 (0.25) is the maximum of any week of the year. The relative probability of presence on week 12 is 0.25/0.25 = 1; at week 20 it is 0.05/0.25 = 0.2. 3. The relative probability of presence calculated in the previous step undergoes a statistical conversion so that all possible values fall between 0 and 10, inclusive. This is the probability of presence score. Breeding Season (■) 10/18/2018 Event Code: 04EN 1 000-2019-E-00052 3 Yellow bars denote a very liberal estimate of the time -frame inside which the bird breeds across its entire range. If there are no yellow bars shown for a bird, it does not breed in your project area. Survey Effort (1) Vertical black lines superimposed on probability of presence bars indicate the number of surveys performed for that species in the lOkm grid cell(s) your project area overlaps. The number of surveys is expressed as a range, for example, 33 to 64 surveys. No Data (—) A week is marked as having no data if there were no survey events for that week. Survey Timeframe Surveys from only the last 10 years are used in order to ensure delivery of currently relevant information. The exception to this is areas off the Atlantic coast, where bird returns are based on all years of available data, since data in these areas is currently much more sparse. probability ol'presence breeding season I survey effort — no data SPECIES JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Kentucky Warbler ---- ---- —__----_---__ BCC Rangewide (CON) Prairie Warbler --� BCC Rangewide (CON) Prothonotary Warbler --' BCC Rangewide (CON) Red-headed Woodpecker BCC Rangewide (CON) Rusty Blackbird A BCC Rangewide (CON) Wood Thrush --�— — BCC Rangewide (CON) -- - 1 — - -- I — +--- ---+'-'- -- I - +----- ---- ---- --+- -I----,--- ---1 1--- --+- I-___11__ Additional information can be found using the following links: • Birds of Conservation Concern hqp://www.fws.gov/birds/management/mana e� h -species/ b irds-of-conservation-concem.phn ■ Measures for avoiding and minimizing impacts to birds hqp://www.fws.gov/birds/ mana e�project-assessment-tools-and-guidance/ conservation-measures.phn • Nationwide conservation measures for birds h!W://www.fws.gov/migratoiybirds/pdf/ management/nationwidestandardconservationmeasures.pdf 10/18/2018 Event Code: 04EN 1 000-2019-E-00052 Migratory Birds FAQ Tell me more about conservation measures I can implement to avoid or minimize impacts to migratory birds. Nationwide Conservation Measures describes measures that can help avoid and minimize impacts to all birds at any location year round. Implementation of these measures is particularly important when birds are most likely to occur in the project area. When birds may be breeding in the area, identifying the locations of any active nests and avoiding their destruction is a very helpful impact minimization measure. To see when birds are most likely to occur and be breeding in your project area, view the Probability of Presence Summary. Additional measures and/or permits may be advisable depending on the type of activity you are conducting and the type of infrastructure or bird species present on your project site. What does IPaC use to generate the migratory birds potentially occurring in my specified location? The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern B( CCS and other species that may warrant special attention in your project location. The migratory bird list generated for your project is derived from data provided by the Avian Knowledge Network (AKN). The AKN data is based on a growing collection of survey, bandins, and citizen science datasets and is queried and filtered to return a list of those birds reported as occurring in the 10km grid cell(s) which your project intersects, and that have been identified as warranting special attention because they are a BCC species in that area, an eagle (Eagle Act requirements may apply), or a species that has a particular vulnerability to offshore activities or development. Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area. It is not representative of all birds that may occur in your project area. To get a list of all birds potentially present in your project area, please visit the E -bird Explore Data Tool. What does IPaC use to generate the probability of presence graphs for the migratory birds potentially occurring in my specified location? The probability of presence graphs associated with your migratory bird list are based on data provided by the Avian Knowledge Network (AKN). This data is derived from a growing collection of survey, banding, and citizen science datasets . Probability of presence data is continuously being updated as new and better information becomes available. To learn more about how the probability of presence graphs are produced and how to interpret them, go the Probability of Presence Summary and then click on the "Tell me about these graphs" link. How do I know if a bird is breeding, wintering, migrating or present year-round in my project area? To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering, migrating or year-round), you may refer to the following resources: The Cornell Lab of Ornithology All About Birds Bird Guide, or (if you are unsuccessful in locating the bird of 10/18/2018 Event Code: 04EN 1 000-2019-E-00052 interest there), the Cornell Lab of Ornithology Neotropical Birds guide. If a bird on your migratory bird species list has a breeding season associated with it, if that bird does occur in your project area, there may be nests present at some point within the timeframe specified. If "Breeds elsewhere" is indicated, then the bird likely does not breed in your project area. What are the levels of concern for migratory birds? Migratory birds delivered through IPaC fall into the following distinct categories of concern: 1. 'BCC Rangewide" birds are Birds of Conservation Concern (BCC) that are of concern throughout their range anywhere within the USA (including Hawaii, the Pacific Islands, Puerto Rico, and the Virgin Islands); 2. 'BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in the continental USA; and 3. "Non -BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either because of the Eagle Act requirements (for eagles) or (for non -eagles) potential susceptibilities in offshore areas from certain types of development or activities (e.g. offshore energy development or longline fishing). Although it is important to try to avoid and minimize impacts to all birds, efforts should be made, in particular, to avoid and minimize impacts to the birds on this list, especially eagles and BCC species of rangewide concern. For more information on conservation measures you can implement to help avoid and minimize migratory bird impacts and requirements for eagles, please see the FAQs for these topics. Details about birds that are potentially affected by offshore projects For additional details about the relative occurrence and abundance of both individual bird species and groups of bird species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data Portal. The Portal also offers data and information about other taxa besides birds that may be helpful to you in your project review. Alternately, you may download the bird model results files underlying the portal maps through the NOAA NCCOS Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic Outer Continental Shelf project webpage. Bird tracking data can also provide additional details about occurrence and habitat use throughout the year, including migration. Models relying on survey data may not include this information. For additional information on marine bird tracking data, see the Diving Bird Study and the nanotag studies or contact Caleb Spiegel or Pam Loring. What if I have eagles on my list? If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid violating the Eagle Act should such impacts occur. Proper Interpretation and Use of Your Migratory Bird Report The migratory bird list generated is not a list of all birds in your project area, only a subset of birds of priority concern. To learn more about how your list is generated, and see options for identifying what other birds may be in your project area, please see the FAQ "What does IPaC 10/18/2018 Event Code: 04EN1000-2019-E-00052 use to generate the migratory birds potentially occurring in my specified location". Please be aware this report provides the "probability of presence" of birds within the 10 km grid cell(s) that overlap your project; not your exact project footprint. On the graphs provided, please also look carefully at the survey effort (indicated by the black vertical bar) and for the existence of the "no data" indicator (a red horizontal bar). A high survey effort is the key component. If the survey effort is high, then the probability of presence score can be viewed as more dependable. In contrast, a low survey effort bar or no data bar means a lack of data and, therefore, a lack of certainty about presence of the species. This list is not perfect; it is simply a starting point for identifying what birds of concern have the potential to be in your project area, when they might be there, and if they might be breeding (which means nests might be present). The list helps you know what to look for to confirm presence, and helps guide you in knowing when to implement conservation measures to avoid or minimize potential impacts from your project activities, should presence be confirmed. To learn more about conservation measures, visit the FAQ "Tell me about conservation measures I can implement to avoid or minimize impacts to migratory birds" at the bottom of your migratory bird trust resources page. 10/18/2018 Event Code: 04EN 1 000-2019-E-00052 Wetlands Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section 404 of the Clean Water Act, or other State/Federal statutes. For more information please contact the Regulatory Program of the local U.S. Anny Corps of Engineers District. Please note that the NWI data being shown may be out of date. We are currently working to update our NWI data set. We recommend you verify these results with a site visit to determine the actual extent of wetlands on site. RIVERINE • R4SBC PCN FORM ATTACHMENT C — NRHP Map • �- tis ;� ,,_• ;- ' � t '.r 1 • �• i � r r r Approximately 3,775 If from exposure location w t` . .:Lumen Christi Lane.. 11 y t ' Approximately 4111 if„ from exposure location f j( Legend Exposure Location CPC r Pipeline NRHP Points L PCN FORM ATTACHMENT D — FEMA/FIRM Map Base Map Source: ESRI Aerial Imagery 1:24,000 0 1,200 2,400 4,800 Feet Colonial Pipeline Company, SE Line 2 Exposure Rowan County, North Carolina corblu ECOLOGY GROUP FEMA/FIRM Map Project No. 02-041901