20231631 Ver 1_USACE attachments_20231128

BLACK&VEATCH
November 27, 2023
Tom Charles
US Army Corps of Engineers
Wilmington District
69 Darlington Avenue
Wilmington, NC 28403
Subject: Duke Energy Warsaw BESS Facility
Dear Mr. Charles:
Black & Veatch Corporation
P [phone] E [e-mail]
Duke Warsaw BESS
415950
34.0000
Black & Veatch Corporation has been contracted by Duke Energy to assist with the permitting
and construction of a 30MW Battery Energy storage system (BESS) facility in Warsaw, Duplin
County, North Carolina. The project will consist of a BESS, internal access roadways, and
underground electric cabling. The project is located at the Warsaw Solar Facility in Duplin
County, North Carolina on a 34.4-acre parcel south of Penny Branch Road leased by Duke
Energy.
Land disturbance activities will occur on approximately 9.90 acres. The construction activity will
include site grading, underground electrical installations, foundation installations, and
installation of the BESS facility. There are no wetlands within the project area but there is an
agricultural ditch that will be crossed by an access road in two places temporarily to reach the
laydown yard requiring installation of culverts within the ditch. A driveway will be constructed
for the BESS facility with a culvert draining into an agricultural ditch. Additionally, to account for
erosion and sediment control requirements by North Carolina Department of Environmental
Quality temporary sediment basins will be constructed adjacent to two ditches and will each
drain to the ditches. The total impact to the ditches is less than 0.1 acre.
The applicant is seeking a confirmation that the project either qualifies under Nationwide Permit
57 or that no permit is required. The enclosed application package contains the following items:
• PCN Application
• Project Narrative
• USGS Topographic Map
• NRCS Soil Survey Map
• 11 x17 inch plan sets
• Photos of the agricultural ditches

Duke Warsaw I Page 2
If additional information is required or if you have questions, please reach out to me directly.
Regards,
Black & Veatch Corporation
S Y� ��
Jena S. Mier, PWS, PMP
Environmental Project Manager
Enclosures
CC: Greg McElmurry, Duke Energy
Steve Cahoon, Duke Energy
Dylan Stewart, Duke Energy
Chris Weeks, BV
Building a World of Difference:

Duke Energy Warsaw BESS
Project Narrative
inM:J:Z8a1X61i11*113:1I:AI M kiI
The Warsaw BESS project includes the installation of a 30 MW/60 MWH battery energy storage system
(BESS) at the existing Warsaw Solar Facility in Duplin County, NC. The project will result in a total ground
disturbance of 9.90 acres.
There are nine (9) areas of Horizontal Directional Drilling (HDD) associated with the project for electrical
cabling. Although the full area of the HDD is included in the LOD, the only area of disturbance are the bore
pits, which are each approximately 3' x 6'.
1.2 SITE DESCRIPTION
The project is southeast of NC Highway 117 and south of Penny Branch Road. The site entrance is
located off Penny Branch Road at 35.004453 °,-78.114333°
The project site is located within the Cape Fear River Basin. The area designated for the BESS project
consists of mowed grass with no trees. Overland flow from stormwater from the facility will flow west
towards the Buckhall Creek. Sediment and erosion control BMPs will be used to prevent any sediment
from entering the Buckhall Creek. General drainage flows from the northeast to the southwest across the
site. There are no wetlands present within the project boundary. There are several potentially
jurisdictional agricultural drainage ditches to the east and southwest of the project site.
The site consists of sand and clay sand soils with loose consistency in the upper 8 feet. Below 8 feet,
soils are very soft clay and clayey sand.
The project area is not within a high quality or outstanding resource water.
BLACK & VEATCH

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Soil Map—Duplin County, North Carolina
Map Unit Legend
Map Unit Symbol
Map Unit Name
Acres in AOI
Percent of AOI
GoA
Goldsboro loamy sand, 0 to 2
14.2
74.2%
percent slopes, Southern
Coastal Plain
NoA
Norfolk loamy sand, 0 to 2
3.4
17.7%
percent slopes
RaA
Rains fine sandy loam, 0 to 2
1.5
8.1 %
percent slopes, Southern
Coastal Plain
Totals for Area of Interest
19.2
100.0%
USDA Natural Resources Web Soil Survey 11/17/2023
Conservation Service National Cooperative Soil Survey Page 3 of 3

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