NC0043176_NOV-2024-LV-0576_20240718

CITY OF
DUNN
PUBLIC UTILITIES
101 E Cleveland St • PO Box 1065 • Dunn, North Carolina 28335
[phone] • CityofDunn.org
July 16, 2024
Mark Brantley
Water Quality Regional Operations Section
Fayetteville Regional Office
Division of Water Resources, NCDEQ
RE: Notice of Violation NOV- 2024-LV-0576
Permit No. NCO043176
Black River WWTP
Harnett County
Dear Mr. Brantley,
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The City of Dunn appreciates the opportunity to respond to the Notice of Violation dated April 6,
2024, and April 30, 2024, for a weekly average and monthly average exceedance of BOD. It is our
intent that this response will provide sufficient additional information regarding the incident.
Cause of non-compliance:
On April 1, 2024, the Effluent BOD sample was pulled and sent to the laboratory for
measurement. During the 2023-2024 calendar year the BRWWTP has been under heavy
construction with upgrades to the waste treatment plant. On April 1, 2024, two aeration basin
trains were taken out of service along with three clarifiers which caused an upset to the system. The
average weekly limit of 18mg/1 was exceeded and 28.5mg/1 was reported. The monthly average
limit of 12mg/1 was also exceeded due to the April 1 sample being out of compliance,12.9mg/1 was
reported for the monthly average.
Action taken:
The upgrades and construction that the BRW WTP have been undergoing are coming to an end on
August 1st. as of the date of this letter, all aeration basin trains have been put back into service
along with all clarifiers.
We believe this letter emphasizes our ongoing commitment to permit compliance and we hope
that the Division recognizes these efforts. Therefore, we respectfully request that the Division not
take any further enforcement action against the City of Dunn.
Sincerely,
Steven Neuschafer
City Manager
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