20201286 Ver 1_CAMA Application_20201015

Strickland, Bev
From: MacPherson, Tara
Sent: Thursday, October 15, 2020 2:04 PM
To: Weychert, Curtis R; Gregory E CIV USARMY CELRP(USA)Currey; Harding, Kimberlee k;
Mairs, Robb L; Dunn, Maria T.
Cc: [e-mail]; Howell, Jonathan; Pietila, Tanya K
Subject: Duke Energy Excavation Minor Modification
Attachments: DOC101520-10152020135615.pdf, DOC101520-10152020135558.pdf
Hi All, Duke Energy is asking us to expedite the attached minor modification request for immediate dredging in the
discharge canal in Caswell Beach. Since Tanya is out I am sending this Minor Modification request to you to get things
rolling.
Thank you!
Tara
Tara MacPherson
Wilmington Region District Manager
NC Division of Coastal Management
Department of Environmental Quality
910 796-7266 office
910 395-3964 fax
tara.macpherson(o-)ncdenr.aov
127 Cardinal Drive Ext
Wilmington, NC 28405
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.

—ND—
Marcol Dredging & Commercial Marine Co.
Duke Energy - Original Discharge Canal Stilling Basin Design
85'
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Marcol Dredging & Commercial Marine Co. - Contractor for Industrial Ponds, Lagoons, Marinas, Canals, & Lakes
Original Disposal Site Design
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all OCT 14 2020
DCM WILMINGTON, NC

Marcol Dredging & Commercial Marine Co.
Duke Energy - Discharge Canal Dredging
Dredge Area 1 -
30,000 cy volume
-19'
MLW dredge depth
Dredge Area 2 -
6,000 cy volume
-17'
MLW dredge depth
Dredge Area 3 -
2,000 cy volume
-10'
MLW dredge depth
Dredge Template - 38,000 cy volume -19' MLW dredge depth
Notes:
1. Survey Data provided by:
TI Coastal Services, Inc.
387-B N. Green Meadows Drive
Wilmington, NC 28405
[phone]
2. Horizontal Datum: NC State Plane - Zone 3200, NAD83 (2011), Survey Feet
3. Vertical Datum: NAVD88, Survey Feet
4. Data collected on September 9, 2020 and represents conditions at that time.
5. Soundings are expressed in feet and tenths.
6. Aerial Photo: NC One Map; 2016
Dredge Template showing Stations, Centerline, Right Toe, and Left Toe
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Dredge Template showing Color Depth Contours, and Proposed Dredge Areas
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Marcol Dredging & Commercial Marine Co. - Contractor for Industrial Ponds, Lagoons, Marinas, Canals, & Lakes DCM WILMINGTON, NC

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DISPOSAL SITE
Disposal Site Location
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Marcol Dredging & Commercial Marine Co.
Duke Energy - Discharge Canal Disposal Site
Topographical Site Survey - Januray 13, 2020
Flow Pattern of Disposal Site
EIVED
OCT 14 2020
Marcol Dredging & Commercial Marine Co. - Contractor for Industrial Ponds, Lagoons, Marinas, Canals, & Lakes
DCM WILMINGTON, NC

ROY COOPER NORTH CAROLINA
Governor Environmental Quality
MICHAEL S. REGAN
Secretary
BRAXTON C. DAVIS
Director
MEMORANDUM
TO: Curt Weychert
Assistant Major Permits Coordinator, MHC
FROM: Tara MacPherson
District Manager, Wilmington
DATE: October 15, 2020
SUBJECT: Modification Request for State Permit # 293
Duke Energy Progress — Parcel No. 251IA021 in Caswell Beach, Brunswick County
Mr. Kim Gerald, Nuclear Site Services, Brunswick Steam Electric Plant. is requesting a minor modification to State
Permit # 293. State Permit # 293 was originally issued on August 23,1983 to the Brunswick Steam (Nuclear) Electric
Plant as a State Dredge and Fill Permit. This permit has been continuously renewed for maintenance purposes. It
was last modified on October 12, 2016 under Duke Energy Progress for the construction of a sheet pile wall and rip
rap for the intake canal shoreline. State Permit No. 293 is due to expire on December 31, 2020.
Mr. Gerald states that sediment has accumulated within the stilling basin area of the discharge canal. DCM has been
informed that immediate excavation is needed to return the stilling basin to original design parameters. Material would
be placed onsite within an existing spoil basin adjacent to the canal. According to the applicant the capacity of the
existing basin would accommodate the proposed 38,000 cubic yards of material. The original and proposed basin
designs are attached to this request. The dredge template is divided into three sections which ranges from -10 ft. to -
19 ft. at NLW (see attached dredge template). On June 1801, 2008 a similar modification was issued for the discharge
canal to excavate up to 60,000 cubic yards within the discharge canal utilizing the existing spoil basin.
The agent has submitted a check (check No. 6237) in the amount of $100 for the modification request. As proposed,
this office has no objection to the project modification as long as there are no objections from other the agencies. It
appears that the project continues to be CONSISTENT with the use standards set forth in NCAC 07H .0208(b)(1).
By copy of this memo, DCM is requesting that NC DMF and NC DWR provide any comment that your agency
may have on the proposed project to Curt Weychert of DCM's Morehead City office within 14 days of receipt
of this memo.
cc: WiRO File USACE NC DWR- Robb Mairs
Town of Caswell Beach NC DMF- Kim Harding NC WRC — Maria Dunn
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North Carolina Department of Environmental Quality I Division of Coastal Management
Wilmington Office 1127 Cardinal Drive Extension I Wilmington, North Carolina 28405
910.796.7215

g f DUKE
ENERGY
OCT 13 2020
Serial: RA-20-0333
Ms. Tara MacPherson
Southern Region District Manager
NC Division of Coastal Management
INC Department of Environmental Quality
127 Cardinal Drive Extension
Wilmington, INC 28412
Brunswick Nuclear Plant
P.O. Box 10429
Southport, NC 28461
Subject: Brunswick Steam Electric Plant, Unit Nos. 1 and 2
Request for Minor Modification to CAMA Permit #293
Maintenance Dredging of Discharge Canal Stilling Basin — Caswell Beach,
NC
Ms. MacPherson,
Please allow this letter to initiate a Minor Modification to Duke Energy Progress, LLC's existing
CAMA Permit #293 at its Brunswick Steam Electric Plant. Duke Energy has a need to remove
accumulated sediment within the stilling basin area of the discharge canal directly in front of its
Pump Station at Caswell Beach, NC.
All spoil materials from this project will be placed in the existing diked area adjacent to the
canal. The disposal site and spill -box has been well -maintained and is in good working condition
for this project. The current capacity of the disposal area is 38,000 cy of placed material
(allowing for 2' of freeboard at the top of the dike), which will also be the approximate total
volume of dredged material.
The intent of this project is to return the stilling basin to its original design parameters and
function and to improve maintenance staff's access to the boat ramp.
If you any questions regarding this submittal, contact Mr. Chuck Nelson at (910)-832-3600.
Sincerely,
Kim Gerald
Manager Nuclear Site Services
Brunswick Steam Electric Plant
Attachments:
t. The original engineering drawing for the stilling basin & the disposal site
2. The proposed dredging template with water depths and volume calculafioEIVED
3. Location, current survey, and flow pattern of the spoil area FRE
OCT 14 2W
DCM WILMINGTON. NC