WQ0023261_NOV-2019-LV-0812 Response_20191112

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ONWASA
on wasa corn
228 Georgetown Rd
Jacksonville. NC 28540
November 12, 2019
Morella Sanchez -King, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
RE: Notice of Violation
Tracking Number NOV-2019-LV-0812
Swansboro Wastewater Treatment Facility
Permit No. WQ0023261
Onslow Water and Sewer Authority, Onslow County
Ms. Sanchez -King:
This letter is sent in response to the October 31, 2019 Notice of Violation (NOV) issued
by your office for a Limit Exceedance Violation that occurred at the Swansboro WWTF during the
month of August 2019.
While ONWASA does not dispute the occurrence of the event listed in the NOV, as it was
self -reported, we believe it was due to inadvertent contamination of the sample at the time it was
taken and not due to systemic issues with the treatment process. A second sample pulled the
following day had a reported MPN/100 ml value of less than 1; the plant's ultraviolet (UV)
disinfection system was also inspected and no deficiencies were noted.
Thank you for your consideration of this supplemental information. Pease contact me
directly at [phone] or dmohr(u onwasa.com you have any additional questions.
Sincerely,
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David M. Mohr, P.E.
Engineering Director
Onslow Water and Sewer Authority
C: Jeff Hudson, Chief Executive Officer
Eddie Caron, Utility Superintendent - Wastewater