WQCS00027_NOV-2022-DV-0110 Response_20220518

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P.O. Box 308
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O Roanoke Rapids, NC 27870
Roanoke Rapids Sanitary District (252)537-
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May 16, 2022
CERTIFIED MAIL: 7005 3110 0001 6339 1343
RETURNED RECEIPT REQUESTED
Mr. Scott Vinson, Regional Supervisor
North Carolina Division of Water Resources
1628 Mail Service Center
Raleigh, NC 27699-1628
Re: Notice of Violation
Tracking No.: NOV-2022-DV-0110
Sanitary Sewer Overflow .- March 2022
Collection System Permit Number: WQCS00027
Roanoke Rapids Sanitary District Collection System
Halifax County
Dear Mr. Vinson,
Please be advised that ongoing remedial action is being taken to correct the deficiencies in the
collection system contributing to the Sanitary Sewer Overflow in the referenced NOV received May 4,
2022. Please note the incident, as reported in BIMS, required a press release but was below the
threshold for public notice. The SSO, Incident No. 202200486, was located within Sub -Basin `A' at
manhole A-54.
Freese & Nichols, Inc. completed a flow study to determine 111 problems in the collection system at the
SSO location on March 4, 2022. Recommended from the study was the option to upsize the Belmont
PS pumping capacity and reroute the force main further downstream: "The recent flow monitoring data
indicate the peak wet weather flows to the Belmont PS occasionally exceed the pumping capacity in the
existing pumps. RRSD has also indicated that during larger wet weather events, when the PS runs
frequently, the downstream gravity sewer becomes surcharged and is at risk for overflows in several
shallow manholes. If the pumping capacity at the PS is increased to handle the peak wet weather flows,
and the force main is rerouted to a larger gravity line further downstream with more capacity, then both
the upstream surcharging and the downstream surcharging would be eliminated."
Roanoke Rapids Sanitary District submitted an application to the Division of Water Infrastructure for
this project in the Spring 2022 round and expect a response on its funding request later this summer.
Should you require additional information, please do not hesitate to contact us.
Very Truly Yours,
*ro
R. ani.E.
Chief Eer
CC: James Kerr, Chairman
Davide W. Scott; File
NOV-2022-DV-0 I 10. Response220516 Page I of 1