NC0000272_Updated Ash Basin Compliance Boundary 2-10-2021_20220401

DUKE
‘, ENERGY®
February 10, 2021
Director of Water Resources
North Carolina Department of Environmental Quality
1636 Mail Service Center
Raleigh, North Carolina 27699-1636
Attention: Mr. S. Daniel Smith
526 South Church Street
Charlotte, NC 28202
Mailing Address:
PO Box 1006
Mail Code EC13K
Charlotte, NC 28201-1006
980 373 6636
Subject: Duke Energy Progress, LLC. Updated Ash Basin Compliance Boundary for the Asheville
Steam Electric Plant, Buncombe County, North Carolina, NPDES Permit No. NC0000396
Dear Mr. Smith:
Duke Energy completed a property acquisition nearby to the Asheville Steam Electric Plant on January
25, 2021. Per 15A NCAC 02L .0107 (c), this letter serves as notification of the change to the ash basin
compliance boundary due to this land acquisition. Attached you will find an updated compliance
boundary to reflect the new property boundary. This information is also being provided to the Asheville
Regional Office.
If you have any questions or need any clarification regarding the information provided, feel free to contact
me at [e-mail] or at 980-373-6636 at your convenience.
Respectfully submitted,
L. Bryson S. Allison
Bryson Allison, P.E.
Duke Energy Environmental Services
Waste & Groundwater Programs
Digitally signed by L. Bryson S. Allison
Date: 2021.02.10 10:22:34-05'00'
Attachments: Figure - Site Layout Map
cc: Rick Bolich, Eric Smith and Steve Lanter - NCDEQ Central Office
Ted Campbell and Landon Davidson — NCDEQ Asheville Regional Office
Ed Sullivan, Tyler Hardin, John Toepfer, Matt Hanchey, Robert Wylie, Teresa Williams — Duke
Energy

NPDES OUTFALL 001
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ASH BASIN
. 1 -
RETIRED ASHEVILLE
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ASHEVILLE COMBINED `
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ASH BASIN
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LAKE JULIAN
NPDES OUTFALL 002
E ERGY
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DRAWN BY: C. CURRIER
REVISED BY: C. WYATT
CHECKED BY: H. CARTER
APPROVED BY: G. BARRIER
PROJECT MANAGER: G. BARRIER
DATE: 03/24/2020
DATE: 02/04/2021
DATE: 02/04/2021
DATE: 02/04/2021
www.s nterracor•.com
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LEGEND
A NPDES OUTFALL LOCATION (APPROXIMATE)
1964 ASH BASIN WASTE BOUNDARY
FORMER 1982 ASH BASIN WASTE BOUNDARY
COMPLIANCE BOUNDARY
- DUKE ENERGY PROGRESS PROPERTY LINE
) STREAM AND FLOW DIRECTION (TWT 2016)
WETLAND (TWT 2016)
FORMER FLUE GAS DESULFURIZATION (FGD) WETLANDS
SURFACE WATER FLOW DIRECTION
NOTES:
1. THE DEPICTED STREAMS AND WETLANDS DATA WERE APPROVED BY THE US
ARMY CORPS OF ENGINEERS (USACE) ON MAY 19, 2016 - JURISDICTIONAL
DETERMINATION SAW-2014-00189. TAYLOR WISEMAN AND TAYLOR (TWT)
PERFORMED THE SURVEY OF THE FEATURES.
2. ALL BOUNDARIES ARE APPROXIMATE.
3. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY PROGRESS, LLC.
4. AERIAL PHOTOGRAPHY OBTAINED FROM NORTH CAROLINA ONE MAP ON
FEBRUARY 20, 2020. AERIAL DATED JANUARY 1, 2019.
5. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE
PLANE COORDINATE SYSTEM FIPS 3200 (NAD83).
FIGURE 1
SITE LAYOUT MAP
ASHEVILLE STEAM ELECTRIC PLANT
ARDEN, NORTH CAROLINA