WQCS00055_5-day response to NOV-2022-DV-0106_20220520

City of Henderson
Public Works Department
Post Office Box 1434 • 900 S. Beckford Drive
Henderson, NC 27536-1434
Phone: [phone] / Fax: [phone]
May 17, 2022
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-2022-DV-0106
Sanitary Sewer Overflows — March 2022
Henderson Collection System
Permit No. — WQCS00055
Dear Mr. Vinson:
I am writing in response to the above -mentioned violation that we received on May 3, 2022. The
overflow in this incident was due to inflow and infiltration during extended periods of heavy rainfall.
Once the rain event ended, the overflow subsided. Following the overflow, we cleaned debris and
placed lime as needed.
Henderson has 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 to alleviate sources of I/I. Henderson staff has assessed over
82,000 feet of sewer pipe with the use of Sewer Line Rapid Assessment Tool (SL_RAT) and has inspected
and gotten GPS coordinates on over 350 manholes. WK Dickson has this data and is currently working to
develop a priority list of potential I/1. Also, on May 2 we submitted an application to the Clean Water
State Revolving Fund for an additional $5 million for this project.
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/1 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,
i 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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