WQCS00030 Statesville Flow Reduction approval letter signed

DocuSign Envelope ID: 3E96B7F4-82E2-4324-99F0-52137AB2222F
ROY COOPER Governor
ELIZABETH S. BISER
Secretary
RICHAM E. ROGERS, JR. NORTH CAROLINA
Director Environmental Quality
June 12, 2023
Mr. William E. Vaughan, PE
Public Utilities Director
City of Statesville
P.O. Box 1111
Statesville, North Carolina 28687-1111
Subject: Sewer Flow Reduction Approval
City of Statesville Collection System (WQCS00030)
Iredell County
Dear Mr. Vaughan:
On April 3, 2023, the Division of Water Resources (Division) received a request for an
adjusted daily sewage flow rate (flow reduction) that would apply to all permitted but not
yet tributary residential connections and future connections tributary to the City of
Statesville collection system (permit no. WQCS00030) that is tributary to the Fourth Creek
Wastewater Treatment Plant (NPDES permit no. NC0031836).
In accordance with 15A NCAC 02T .0114(f) (1&2), the Division has evaluated the request
and based on the data submitted, the Division hereby approves for use by the City of
Statesville an adjusted daily sewage flow rate with the following conditions:
• The flow reduction is applicable to residential dwelling units tributary to the Fourth Creek
Wastewater Treatment Plant (NC0031836) only.
• The minimum flow for residential dwelling units shall be 102 gallons per day per bedroom
for one, two and three bedroom units.
• Each additional bedroom above three bedrooms shall increase the volume of 102 gallons
per day per bedroom.
• This flow reduction shall not apply to sewer extension applications and /or permits for any
other public or private organizations whose wastewater flows are or might become
tributary
to the portion of City of Statesville collection system (WQCS00030) tributary to the Fourth
Creek Wastewater Treatment Plant.
North Carolina Department of Environmental Quality I Division of Water Resources
4NORT�HCv 512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTHCAROUNA 919.707.9000
Department ofEnvlronmantal Duali�

DocuSign Envelope ID: 3E96B7F4-82E2-4324-99F0-52137AB2222F
Future sewer extension applications should be made using the flow reduction amount
stated above. All other aspects of the permitting process remain unchanged, and all
applications must be in compliance with the statutes, rules, regulations and minimum
design criteria as certified by the owner and engineer.
Regardless of the adjusted design daily wastewater flow rate, at no time shall the
wastewater flows exceed the effluent limits defined in the permit for the treatment facility
or exceed the capacity of the sewers downstream of any new sewer extension or service
connection fsl.
In accordance with 15A NCAC 02T .0114(f), the Division periodically requires reassessment
of wastewater flow data associated with the collection system or the receiving wastewater
treatment plant as applicable to confirm the suitability of the approved flow reduction value.
The City of Statesville shall submit documented, representative data in accordance with 15A
NCAC 02T.0114(fl (1) (A-H) prior to May 31, 2031. Failure to submit the required data by this
date will result in this flow reduction approval letter becoming null and void. Upon review
of the data. the Division shall either reapprove, modify or not grant reapproval for the
previously approved flow reduction value.
The granting of this flow reduction does not prohibit the Division from reopening, revoking,
reissuing and /or modifying the flow reduction as allowed by the laws, rules and regulations
contained in 15 NCAC 02T, NCGS 143-215.1, or as needed to address changes in State and/or
Federal regulations with aspect to wastewater collection systems, protection of surface
waters, and/or wastewater treatment.
If you have any questions, please contact Michael Montebello at [phone] or by e-mail
at Michael.montebelloOdeq.nc.gov.
Sincerely DocuSigned by:
EAKfL�Iu b
644FE_
Michael Montebello
NPDES Branch Chief, Division of Water Resources, DEQ
CC: Scott Harrell, PE, Asst. City Manager Statesville
Mooresville Regional Office, Water Quality Regional Operations
Municipal Permitting Unit (electronic copy)
DEQ �J North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORrH CAROLINA �/ 919.707.9000
oepanmem or environmental auaii