NC0000396_Compliance Evaluation Inspection_20220318

DocuSign Envelope ID: ElEFE71E-4E37-4405-A50D-47E2F6F2F4E6
ROY COOPER
Governor
ELIZABETH S. RISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
SENT VIA ELECTRONIC MAIL ONLY: NO HARD COPY WILL BE MAILED.
March 18, 2022
Teresa Williams, Lead Environmental Field Specialist & ORC
Duke Energy Progress: Asheville Combined Cycle Plant
E-mail: [e-mail]
SUBJECT: Compliance Inspection Report
Asheville Steam Electric Power Plant
NPDES WW Permit No. NC0000396
Buncombe County
Dear Permittee:
The North Carolina Division of Water Resources conducted an inspection of the Asheville Steam Electric
Power Plant on 3/16/2022. This inspection was conducted to verify that the facility is operating in
compliance with the conditions and limitations specified in NPDES WW Permit No. NC0000396. The
findings and comments noted during this inspection are provided in the enclosed copy of the inspection
report entitled "Compliance Inspection Report".
There were no significant issues or findings noted during the inspection and therefore, a response to this
inspection report is not required.
If you should have any questions, please do not hesitate to contact Timothy Heim with the Water
Quality Regional Operations Section in the Asheville Regional Office at 828-296-4500 or via email at
[e-mail].
ATTACHMENTS
Ec: LF
Sincerely,
r—DocuSigned by:
7E617A38285848C...
G. Landon Davidson, P.G., Regional Supervisor
Water Quality Regional Operations Section
Asheville Regional Office
Division of Water Resources, NCDEQ
North Carolina Department of Environmental Quelfy I olvtslon of Water Resources
Asheville Regional Office 12090 O.S. Highway 70 I Swannanoa, Noah Carolina 28778
828.296.4500

DocuSign Envelope ID: ElEFE71E-4E37-4405-A50D-47E2F6F2F4E6
United States Environmental Protection Agency
EPA Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection
1 IN I 2 IL I 3 I NC0000396 111 121 22/03/16 117
Type
1810I
IIIIIIIIIII
Inspector Fac Type
19I S I 2011
21IIIIII IIIIIIIIIIIIIIIIII I IIIIII
P6
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved
671 I 70I I 711 172 I N I 73I 1 74 71
I I
I I I I I I 180
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Asheville Steam Electric Power Plant
46 Duke Energy Ln
Arden NC 28704
Entry Time/Date
09:30AM 22/03/16
Permit Effective Date
22/03/01
Exit Time/Date
12:30PM 22/03/16
Permit Expiration Date
23/11/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Teresa Lynne Williams/ORC/828-687-5240/
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
William A Phipps,200 Cp L Dr Arden NC 28704//828-687-5201/8286875204
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Operations & Maintenar Records/Reports Effluent/Receiving Wate
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Timothy H Heim DWR/ARO WQ/828-296-4665/
3/18/2022
�DocuSignetl by:
�08281105A3CA418...
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
DocuSigned by: 3/18/2022
p- T„___
�7E61,38285848C
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page# 1

DocuSign Envelope ID: ElEFE71E-4E37-4405-A50D-47E2F6F2F4E6
3I
NPDES yr/mo/day
NC0000396 111 121 22/0 3/ 16
117
Inspection Type
18LI
(Cont.)
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Tim Heim of the Asheville Regional Office performed a Compliance Inspection of the Facility on March
16, 2022. Teresa Williams (Lead Environmental Field Specialist & ORC) and Mike Garner (Water
Chemistry Systems) were present and assisted with the inspection. C. Patterson (Anchor QEA) is the
BORC. The facility appeared in compliance with Permit NC0000396 at the time of the inspection.
The inspection included Outfalls 001, 0101, 002 (Simple Cycle Discharge), and 001 A & 001 C
(Combined Cycle Discharge). Outfalls 001 B & 001 D were decommissioned and removed in the 2021
Permit Modification. Outfall 005 was decommissioned and removed in 2015, and Outfall 004 is not
needed and was never constructed. Outfall 004 & 005 should be considered for removal from the
eDMR process.
The following items were noted at the time of the inspection:
The Stilling Pond associated with Outfall 001 is no longer needed for hydraulic energy dissipation
due to significantly reduced flows associate with removal of the coal boilers, and is promoting algae
growth that could impact the discharge. Modification of this structure to reduce retention time is being
considered.
Decommissioning and removal of Coal Boiler Units 1 and 2 is scheduled to be completed by the end
of 2022.
Work in the '64 Ash Basin continues to progress and is anticipated to be complete by the end of
2022.
Page# 2

DocuSign Envelope ID: ElEFE71E-4E37-4405-A50D-47E2F6F2F4E6
Permit: NC0000396
Inspection Date: 03/16/2022
Owner - Facility: Asheville Steam Electric Power Plant
Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? • ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable II El El El
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment:
Page# 3