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Home My WebLink About20060638 Ver 7_More Additional Information HF Lee Seepage comments_20170607Strickland, Bev From: Witherspoon, Josh <josh.witherspoon@amecfw.com> Sent: Wednesday, June 07, 2017 8:54 PM To: Scarbraugh, Anthony Cc: Dailey, Samantha J CIV USARMY CESAW (US); Cahoon, Steve; Harmon, Richard G Subject: HF Lee Seepage comments Attachments: 164198-SW02-4-WETLANDS.PDF Anthony—Steve Cahoon asked us to respond to the comments in your email from May 23, 2017, regarding the HF Lee Seepage Collection PCN. Attached please find a response letter to your comments, a revised impact drawing depicting the proposed design changes, and an updated PCN form that contains the changes in proposed wetland impacts resulting from the design revision. Please let us know if you need additional information. Josh Witherspoon, LSS, PWS Senior 2 Ecologist, Environment and Infrastructure Americas, Amec Foster Wheeler 4021 Stirrup Creek Drive, Suite 100, Durham, NC 27703 T (919)-381-9900 D (919)-381-1402 M (919)-219-9549 VOIP #748-1402 0osh.witherspoon .amecfw.com amecfw.com Amec foster Wheeler This message is the property of Amec Foster Wheeler plc and/or its subsidiaries and/or affiliates and is intended only for the named recipient(s). Its contents (including any attachments) may be confidential, legally privileged or otherwise protected from disclosure by law. Unauthorised use, copying, distribution or disclosure of any of it may be unlawful and is strictly prohibited. We assume no responsibility to persons other than the intended named recipient(s) and do not accept liability for any errors or omissions which are a result of email transmission. 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Please click http://amecfw.com/email-disclaimer for notices and company information in relation to emails originating in the UK, Italy or France. 7 4 1 3 1 2 1 1 VEGETATED DIVERSION BERM TV 3 (ELEVATION 77) _ \ NORTH OH+E ZSh�€ pH -E OH- -E E OH -E OH -E OH -E OH -E E OH -E `` \ G 3 -HO 3 -HO -HO -HO 3 -Hp � p 3 -HO — ` 3 -HO 3 -HO 3 -HO 3 -HOS 3 -HO 3 -HO 3 -HO \ O -E OH -E \ /�- OH -E-, OH -E OH -E OH -E OH -E OH- OH -E OH -E -B -: 77.0-75—� 76 _ —??? ------------- ------ -- J ------ ----' —� X _ ------ - -- --- -_ _------- —75� - __ — — �'-_— - --- �_� ------ 76 2 ---- ----- - L _ _ _ _76 --_ -- --L _ = --- ---- ---- _ -- -_- ------ ---- ----- - — — — — -_ 77.0 �/ - - --- --- 76 WETLAND IMPACT WETLAND IMPACT �- _-------------- --- - --------- - - 0.04 ACRES (1,582 S.F.) ___--_ 0.04 ACRES (1,613 S.F.)-------- ---- --- L -75 WETLAND IMPACT7 --------- .:-------------------------------------- WETLAND IMPACT - --------- -75 ---- 0.02 ACRES (795 S.F.) 0.01 ACRES (630 S.F.)-- WETLAND IMPACT _75_ ---------- ------------------------------------ -� ----- 0.02 ACRES (1,005 S.F.) --- - _- -------------- - -- --- ------ S 27 -------------_ — — — —— —————————————— ------------------------- ------------------------------------------------------------------------------------ --------------------------------------------------- --- ------- --------------------------------------------------------'85------------ ---------------------------------------- -=ASH BASIN - ___—__--__---_____---_ -_-___--- ----------------------------------------------- _ _ __ __ _ ----------- --------------------------------------------------- ------------- --------------------------- LIMIT ------------------------------------------- -- __________ __________ ______--_______________ -- - 85_------__ _-_------_-- E E ------ --------------------------- ---------- ----- ---- _ —� —� _- —p --�------------------------ -------------------------- ----- _-- f o-- -� _fl ------ G G G G G — — — — — — — — — — — — — — — — — — — - - — �- d 4 G 4 G —-------------------------------------------- _----------------------o-- ---------------____�_____= _ __--_-- ---- -----_— _------------- ------------------------------------ l-� �� - _ i� - -------------------- — -- ----------------- - - / EXISTING , U W W W I, V - - W Q I, - W + + + + + + + + + + + + + + + + + + + 0+00 1+20 2+40 3+60 4+80 6+00 7+20 7+71 SECTIONA-A SCALE H:1"=30'; V:1"=30' 90 EXISTING WETLAND PROPOSED i_l BERM -APPROXIMATE EXISTING APPROXIMATE EXISTINGAPPROXIMATE EXISTING EXISTING GROUND SURFACE GROUND SURFACE EXISTING APPROXIMATE EXISTING WETLAND GROUND SURFACE GROUND SURFACE 90 90 PROPOSED 90 90 WETLAND 90 90 BERM I PRO OSEDh I 80 1 180 70 ' 70 FILL 60 60 i o 0 i + + 0+00 0+66 SECTIONB-B SCALE H:1"=30'; V:1"=30' 0 NOTES 1. TOTAL WETLAND IMPACTS SHOWN ON THIS DRAWING ARE i 0.13 ACRES (5,625 SQUARE FEET). 0 y 2. TOTAL WETLAND IMPACTS ACCOUNT FOR AN ADDITIONAL 15 -FT WIDTH TO THE NORTH OF THE PROPOSED BERM TO ALLOW FOR EQUIPMENT TRAVEL THROUGH WETLANDS N IN AREAS ADJACENT TO PROPOSED EARTHWORK. h REFERENCE 1. EXISTING CONTOURS DERIVED FROM THE NC ONEMAP GEOSPATIAL PORTAL. CONTOURS ARE BASED ON 20 FOOT DEM GRID CELL GENERATED FROM LIDAR. 2. EXISTING AERIAL TOPOGRAPHY SURVEY PREPARED BY WSP, DATED JUNE 1, 2015. 3. STREAMS DEPICTED ON THIS DRAWING ARE FROM FIGURE 5 OF THE 401 APPLICATION, WHICH WAS PREPARED BY GEOSYNTEC, AND DATED JUNE 2015. 4. WETLANDS DEPICTED ON THIS DRAWING ARE FROM GPS COORDINATES RECORDED BY WETLAND EXPERTS ON APRIL 18, 2017. 80 I 80 70 ' 70 ILL 60 F 60 0 M + 0+00 0+56 SECTIONC-C SCALE H:1"=30'; V:1"=30' 80 80 70 1 70 FILL 60 60 i a i + 0+00 0+59 SECTIOND-D SCALE H:1"=30'; V:1"=30' LEGEND 80 70 EXISTING WETLAND 90 �- PROPOSED BERM 80 FILL 70 60 60 M + 0+00 0+59 SECTIONE-E SCALE H:1 "=30'; V:1 "=30' EXISTING PROPERTY LINE SCALE IN FEET EXISTING ASH BASIN LIMITS (ESTIMATED; -8 EXISTING INDEX CONTOURS 0 30' 60' LIMITS OF DISTURBANCE (SEE NOTE 1) DRAFT iL� DUKE C ENERGY.. A A M 1A Civil & Environmental Consultants, Inc. 333 Baldwin Road • Pittsburgh, PA 15205 Ph: 412.429.2324 • 800.365.2324 • Fax: 412.429.2114 www.cecinc.com DUKE ENERGY H.F. LEE SITE WAYNE COUNTY GOLDSBORO, NORTH CAROLINA J M B I CHECKED BY: DRAFT I APPROVED BY: DRAFT 6/02/2017 1 DWG SCALE: 1" = 30'1 PROJECT NO: 164-198.0002 DRAWING NO.: WETLAND IMPACTS 4. SHEET OF it] 191 F E 0 C -----7c` EXISTING INTERMEDIATE CONTOURS EXISTING TREELINE EXISTING PIPING OH—E EXISTING OVERHEAD WIRES EXISTING ACCESS BENCH EXISTING DRAINAGE DITCH — EXISTING STREAM — EXISTING INTERMITTENT STREAM — — EXISTING PERENNIAL STREAM NEUSE RIVER 50 -FT RIPARIAN BUFFER (SEE REFERENCE 3) EXISTING RIPRAP EXISTING WETLANDS OS -04 EXISTING IDENTIFIED SEEP E PROPOSED ELECTRICAL CONDUIT FM PROPOSED FORCEMAIN PROPOSED SUMP PUMP WITH ANTI -SEEP COLLAR DRAWN BY DATE: D PROPOSED TEMPORARY GENERATOR LIMITS OF DISTURBANCE (SEE NOTE 1) DRAFT iL� DUKE C ENERGY.. A A M 1A Civil & Environmental Consultants, Inc. 333 Baldwin Road • Pittsburgh, PA 15205 Ph: 412.429.2324 • 800.365.2324 • Fax: 412.429.2114 www.cecinc.com DUKE ENERGY H.F. LEE SITE WAYNE COUNTY GOLDSBORO, NORTH CAROLINA J M B I CHECKED BY: DRAFT I APPROVED BY: DRAFT 6/02/2017 1 DWG SCALE: 1" = 30'1 PROJECT NO: 164-198.0002 DRAWING NO.: WETLAND IMPACTS 4. SHEET OF it] 191 F E 0 C