WQCS00055_NOV-2021-DV-0051 Response_20210210

.yob E City of Henderson
oy `° Public Works Department
2 Post Office Box 1434 •900 S. Beckford Drive
PAID fl 0 Henderson, NC 27536-1434
� CA
Phone: [phone] / Fax: [phone]
February 10, 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-0051
Sanitary Sewer Overflows — December 2020
Henderson Collection System
Permit No. — WQCS00055
Dear Mr. Vinson:
I am writing in response to the above mentioned violation that we received on January 27, 2021. Cause
and actions taken for each incident are listed below.
Incident #202003477 - #202003479, #202003498 - #202003503, #202003551 - #202003553,
#202003555 - #202003557
The overflows in these incidents 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 and
placed lime as needed around the manholes. We continue to search for sources of 1/1 via smoke testing
and CCTV equipment.
Incident # 202003481, #202003505
The overflows in these events were due to inflow and infiltration during extended periods of heavy
rainfall. Once the rain event ended, the overflows subsided. Following the overflow we cleaned debris
and placed lime in the area as needed.
Moving forward, Henderson City Council has approved a CIP project for an EQ basin at the Sandy Creek
Pump Station for fiscal year 2020-2021. This project is contingent on council 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 1/1. WK Dickson has
started a sewer model that will help us assess the problem areas in our system. With their help we have
applied for a low interest loan in the amount of $2.5 million for sewer rehabilitation. If approved we will
use the funds to find and repair problem areas in our collection system. We should know if we are
approved for the loan by the end of February 2021.
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 1/1 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,
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
Teddy Felts, Chief Plant Operator
File