HomeMy WebLinkAbout20060638 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
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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