NCS000573_Permit Minor Mod to Add SW028 SW029_20190620

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Interim Director
Mr. Reginald D. Anderson,
General Manager
Duke Energy Carolinas, LLC
Belews Creek Steam Station
3195 Pine Hall Road
Belews Creek, NC 27009
Dear Mr. Anderson:
NORTH CAROLINA
Environmental Quality
June 20, 2019
Subject: NPDES Stormwater Permit
Permit No. NCS000573
Minor Modification
Belews Creek Steam Station
Stokes County
The Division of Energy, Mineral, and Land Resources' Stormwater Program received your
request to revise permit no. NCS000573 on February 6, 2018. We apologize for the long delay
in responding to this modification request.
The Division has reviewed and approved your request to add Stormwater Outfalls SW028 and
SW029, outlets from basins that receive runoff from the ditch line along the access road to the
Craig Road Landfill, to this NPDES Stormwater Permit.
This modification include$ the following changes from your current permit:
Modifications to the permit in Part II on page 10 of 20, to include Outfalls SW028 and
SW029 in monitoring requirements.
Revisions to the permit cover page to reflect the latest amendment date.
Please replace these pages in the current permit with the revised pages and discard the
older pages.
All other conditions and schedules in the previous permit remain in place and in effect.
D Q
.,- North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
512 North Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612
NORTH CAROLINA _
oeaartrnMofbam—mqurli 919.707.9200

If any parts, measurement frequencies, or sampling requirements contained in this modification
are unacceptable to you, then you have the right to file a petition for a contested case with the
Office of Administrative Hearings within thirty (30) days following receipt of this letter. This
petition must conform to the requirements of Chapter 150B of the North Carolina General
Statutes. Petitions must be timely filed with the Office of Administrative Hearings, Post Office
Drawer 11666, Raleigh, North Carolina 27604. If you do not file a petition within the required
time, the agency decision shall be final and binding.
If you have any questions or comments concerning this correspondence, contact Bethany
Georgoulias at [phone] or at bethany.georgoulias(@ncdenr.gov.
Sincerely,
for S. Daniel Smith, Director
Division of Energy, Mineral, and Land Resources
cc: Mooresville Regional Office, DEMLR Stormwater Program
Sam Sampath, Ph.D., EPA Region IV, 61 Forsyth Street, Atlanta, GA 30303
Joyce Dishmon, Duke Energy (via email)
Stormwater Program
Enclosure

Permit No. NCSOOOS73
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
PERMIT
TO DISCHARGE STORMWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other
lawful standards and regulations promulgated and adopted by the North Carolina
Environmental Management Commission, and the Federal Water Pollution Control Act, as
amended,
Duke Energy Carolinas, LLC
is hereby authorized to discharge stormwater from a facility located at
Belews Creek Steam Station
3195 Pine Hall Road
Belews Creek, NC
Stokes County
to receiving waters designated as West Belews Creek / Belews Lake, class C waters in the
Roanoke River Basin, in accordance with the discharge limitations, monitoring
requirements, and other conditions set forth in Parts I, II, III, and IV hereof.
This permit shall become effective February 13, 2017.
This permit and the authorization to discharge shall expire at midnight on January 31, 2022.
Originally issued the 13th day of February 2017; amended and signed this 20th day of June
2019.
S. Daniel Smith, Director
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission

Permit No. NCS000573
The permittee's application reports that no industrial activity takes place in the drainage
area south of the FGD Residuals Landfill discharging via outfall SW026. A stormwater
discharge permit is not required under the reported site conditions and operating mode.
The following parameters shall be monitored during a measurable storm event discharging
from the Craig Road Landfill and access road via outfall SW027, SW028, and SW029
into West Belews Creek/Belews Lake.
Table 4 Analytical Monitoring Reauirements for SW027. SW02R. and SWo29
Discharge
Measurement
Sample
Sample
Characteristics
Units
Fre uenc 1
Tvpe2
Location3
Total Suspended Solids (TSS)
m L
semi-annual
Grab
SDO
H
standard
semi-annual
Grab
SDO
40 CFR Part 423 Appendix A:
Additional Priority Pollutant Metals -
mg/L
semi-annual
Grab
SDO
Ag, As, Be, Cd, Cr, Cu, Hg, Ni, Pb, Sb,
Se, Tl, Zn5
Boron
m L
semi-annual
Grab
SDO
Total Rainfa114
inches
semi-annual
Rain
_
gauge
Footnotes:
1 Measurement Frequency: Twice per year (unless other provisions of this permit prompt monthly sampling)
during a measurable storm event, until either another permit is issued for this facility or until this permit
is revoked or rescinded. If the facility is monitoring monthly because of Tier Two or Three response actions
under the previous permit, the facility shall continue a monthly monitoring and reporting schedule in
Tier Two or Tier Three status until relieved by the provisions of this permit or the Division.
2 Grab samples shall be collected within the first 30 minutes of discharge. When physical separation between
outfalls prevents collecting all samples within the first 30 minutes, sampling shall begin within the first 30
minutes, and shall continue until completed.
3 Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) specified above
unless representative outfall status (ROS) has been granted. The permittee may petition the Director for
ROS using DEMLR's ROS Request Form. DEMLR may grant ROS if stormwater discharges from a single
outfall are representative of discharges from multiple outfalls. Approved ROS will reduce the number of
outfalls where the analytical sampling requirements apply and will be documented in a letter to the
permittee. A copy of the Division's letter granting ROS shall be kept on site.
4 For each sampled measurable storm event, the total precipitation must be recorded. An on -site rain gauge
is required. Where isolated sites are unmanned for extended periods of time, a local rain gauge reading
may be substituted for an on -site reading.
5 Mercury shall be measured by EPA Method 1631E.
Part II Page 10 of 20