WQCS00055_NOV-2021-DV-0422 Response_20211028

City of Henderson
Public Works Department
Post Office Box 1434. 900 S. Beckford Drive
Henderson, NC 27536-1434
Phone: [phone] / Fax. [phone]
October 28, 2021
Mr. Scott Vinson, Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources, NCDEQ
1628 Mail Service Center
Raleigh, NC 27699-1628
Re: Response to Notice of Violation & Intent to Issue Civil Penalty
Tracking No. — NOV-2021-DV-0422
Sanitary Sewer Overflows — August 2021
Henderson Collection System
Permit No. — WQCS00055
Dear Mr. Vinson:
I am writing in response to the above. mentioned vioLation that we received on October 14, 2021. The
overflows in each incident were in the Sandy Creek basin and were due to inflow and infiltration during
extended periods of heavy rainfall. Once the rain event ended, the overflows subsided. Following the
overflows, we cleaned debris and placed lime as needed.
Moving forward, Henderson City Council has approved a CIP project for an EQ basin at the Sandy Creek
Pump Station. This project is contingent on councir allocating the funds for the project. The EQ basin will
increase capacity at the pump station to help prevent spills.
Henderson has also hired a consultant, WK Dickson, to assist our efforts in reducing I/I. WK Dickson has
a working sewer model that will help us assess the problem areas in our system. With their help the City
of Henderson received and accepted a loan in the amount of $2.5 million from the Clean Water State
Revolving Fund for sewer rehabilitation in an effort to alleviate sources of I/I. City of Henderson Staff
and WK Dickson held a project kickoff meeting on August 26, 2021 to begin initiating this project. Since
the kickoff meeting Henderson staff has assessed 58,200 feet of sewer pipe with the use of Sewer Line
Rap;d Assessment Tool (SL_RAT) and has inspected and gotten GPS coordinates on 192 manholes.
We take our responsibility to maintain compliance for our collection system very seriously. Public Works
is working closely with Engineering and HWRF to come up with solutions to fight our I/I problem. I trust
that you find the City's actions for compliance are satisfactory. Thank you very much for the opportunity
to respond. Please feel free to contact our staff or myself should you need any further information.
Sincerely,
Lee Owen
Assistant Public Works Director

CC: Edward Terrell Blackmon, City Manager
Andy Perkinson, Public Works Director
Joey Long, Distribution & Collection System Supervisor — Collection System ORC
Christy Lipscomb, KLRWP Director/ORC, HWRF ORC
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