NC0003417_Other_20220223

*k s DUKE
'NC' ENERGY®
October 16, 2020
Mr. S. Daniel Smith
Director of Water Resources
North Carolina Department of Environmental Quality
1636 Mail Service Center
Raleigh, North Carolina 27699-1636
410 S. Wilmington Street.
Raleigh, NC 27601
Mailing Address
Mail Code NC 15
Raleigh, NC 27601
919-546-7863
Subject: Duke Energy Progress, LLC. Updated Ash Basin Compliance Boundary for the H.F. Lee
Energy Complex, Wayne County, North Carolina, NPDES Permit No. NC0003417
Dear Mr. Smith:
Duke Energy completed a property purchase nearby to the H.F. Lee Energy Complex on September 15,
2020. Per 15A NCAC 02L .0107 (c), this letter serves as notification of the change to the ash basin
compliance boundary due to this land purchase. Attached you will find an updated compliance
boundary to reflect the new property boundary. This information is also being provided to the
Washington 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 919-546-7863 at your convenience.
Respectfully submitted,
-ohn Toepfer, P.E.
Lead Engineer, Duke Energy EHS CCP
Waste & Groundwater Programs
Attachments: Figure 1-2B, Site Layout Map
cc: Rick Bolich, Eric Smith and Steve Lanter - NCDEQ Central Office
Will Hart and David May - NCDEQ Washington Regional Office
Ed Sullivan, Tyler Hardin, Matt Hanchey, Joyce Dishmon — Duke Energy

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LEGEND
e MONITORING WELL IN ASH POREWATER
▪ MONITORING WELL IN SURFICIAL FLOW ZONE
Le MONITORING WELL IN CAPE FEAR FLOW ZONE
BACKGROUND MONITORING WELL
C PIEZOMETER IN SURFICIAL FLOW ZONE
■ NPDES OUTFALL LOCATION
PURCHASED PARCELS
WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
FORMER COAL FIRED POWER PLANT
DUKE ENERGY PROGRESS PROPERTY LINE
• STREAM (AMEC)
WETLAND (AMEC)
—0- SURFACE WATER FLOW DIRECTION
NOTES;
1. NPDES - NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
2. THE WATERS OF THE US SHOWN ON THIS MAP HAVE NOT BEEN APPROVED BY THE US
ARMY CORPS CIF ENGINEERS. WETLANDS AND STREAMS BOUNDARIES WERE OBTAINED
FROM AMEC FOSTER AND WHE ELER(AM EC) NATURAL RESOURCES TECHNICAL REPORT FOR
H.F. LEE ENERGY COMPLEX DATED JANUARY 20, 2014 AND UPDATES RECEIVED FROM AMEC
IN MAY2017.
3. ALL BOUNDARIES ARE APPROXIMATE.
4. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY PROGRESS.
5. AERIAL PHOTOGRAPHY OBTAINED FROM TERRASEVER DN JUNE 18, 2019. AERIAL WAS
COLLECTED DN JANUARY 9, 2019.
6. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE
COORDINATE SYSTEM FIPS 3200 (NADS3).
�IDKE
ENERGY
PROGRESS
GRAPHIC SCALE
250 0 250 500
(IN FEET)
synTerra
DRAWN BY: C. CURRIER
REVISED BY. C. CURRIER
CHECKED BY:
APPROVED BY.
PROJECT MANAGER; C. PONCE
DATE: 10/07/2020
DATE: 10/07/2020
DATE; 10/07/2020
DATE: 10/07/2020
FIGURE 1-2B
SITE LAYOUT MAP
GROUNDWATER MONITORING WELLS
INACTIVE ASH BASINS
2020 COMPREHENSIVE SITE ASSESSMENT UPDATE
H.F. LEE ENERGY COMPLEX
GOLDSBORO, NORTH CAROLINA
www.synterracorp.com