NC0050342_Imposition of Sewer Line Moratorium_20210701

DocuSign Envelope ID:ED25EFB0-6368-41 E5-9EA9-60194B5C8295
ROY COOPER .0Mt ,
Governor
ELIZABETH BISER
Secretary
4 7
S. DANIEL SMITH
Director
NORTH CAROLINA
Environmental Quality
7/1/2021
CERTIFIED MAIL 7018 1830 0001 8037 1806
RETURN RECEIPT REQUESTED
City of Winston-Salem
David K. Saunders,P.E., Director of Utilities
Public Works Department
Winston-Salem,North Carolina 27102
Subject: Imposition of Sewer Line Moratorium
Demonstration of Future Wastewater Treatment Capacities
NPDES Permit NC0050342
City of Winston-Salem, Muddy Creek WWTP, WPCS Grade V
Forsyth County
Dear Permittee:
15A NCAC 02T .0118,"Demonstration of Future Wastewater Treatment Capacities,"was
adopted by the Environmental Management Commission to ensure that wastewater treatment
systems owned or operated by municipalities,counties, sanitary districts, or public utilities do
not exceed their hydraulic treatment capacities. This Rule specifies that no permits for sewer line
extensions will be issued by the Division of Water Resources to facilities exceeding 80%of their
hydraulic treatment capacity unless specific evaluations of future wastewater treatment needs
have been completed.
A review of your self-monitoring reports has indicated flow at the subject facility is at or
exceeding the 80%threshold for the period Jan2020 through May2021. The average flow
calculated for this period was 16.79 MGD representing 80% of your current treatment capacity.
Therefore, we will be unable to approve any further sewer line extensions for this facility until
such time as you have complied with the requirements contained in the Rule.
To attain compliance with the Rule,you must submit an approvable engineering evaluation of
future wastewater treatment needs. This evaluation must outline specific plans for system
expansion and include the sources of funding for the expansion. If future expansion is not
proposed, a detailed justification must be made based on past growth records and future growth
projections and as appropriate, shall include conservation plans or other specific measures to
achieve waste flow reductions.
To prevent delays in the processing of your future permit applications for sewer line extensions,
please submit a plan of action containing the information necessary to comply with the
appropriate demonstrations as described above to the following address:
North Carolina Department of Environmental Quality I Division of Water Resources
D_E Q 512 North Salisbury Street 11617 Mail Service Center I Raleigh,North Carolina 27699-1617-
919.707.3616

DocuSign Envelope ID:ED25EFB0-6368-41 E5-9EA9-60194B5C8295
DEQ-DWR
Compliance&Expedited Permitting Unit
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
Provision For Sewer Line Approvals While On Moratorium
Per the terms of NCAC 02T .0118 (3),the Director may, on a case-by-case basis, allow permits
to be issued to facilities exceeding the 80 percent loading rate if:
1) additional flow will not cause the facility to exceed its
permitted hydraulic capacity,
2) the facility has complied with all other permit limitations and
requirements, and
3) the Permittee demonstrates adequate progress to develop the required
engineering evaluations and/or plans and specifications.
If you wish to obtain sewer extension permits while under moratorium per this provision of the
rule,please send all required information in support of your request to the Winston-Salem
Regional Office(WSRO).
Any plans and specifications for expansion should be submitted to the Division of Water
Resources.
Notification of 90%Hydraulic Treatment Capacity Requirements
To attain compliance with the Rule,prior to reaching the 90%hydraulic treatment capacity
threshold,you must obtain all permits needed for expansion of the wastewater treatment system
and, if construction is needed, submit approvable final plans and specifications for expansion of
the wastewater treatment system, including a construction schedule. If expansion is not proposed
or is proposed for a later date,a detailed justification must be made and approved by the Director
based on past growth records and future growth projections and as appropriate, shall include
conservation plans or other specific measures to achieve waste flow reductions.
We look forward to working with you on development of plans to meet your future wastewater
treatment needs. If you have any questions regarding this matter,please contact the Water
Quality Regional Operations staff of our Winston-Salem Regional Office at 336-776-9800 or
email Joe R. Corporon of the Compliance&Expedited Permitting Unit
[j [e-mail]].
Sincerely,
-DocuSigned by:
✓ZY1x C �•
\--8328B44CE9EB4A1...
for S. Daniel Smith, Director
Division of Water Resources
Attachment(15A NCAC 02T .0118)
cc: Laserfiche
Winston-Salem Regional Office
Municipal Permitting Unit

DocuSign Envelope ID:ED25EFB0-6368-41E5-9EA9-60194B5C8295
15A NCAC 02T .0118 DEMONSTRATION OF FUTURE WASTEWATER
TREATMENT CAPACITIES
To ensure treatment,utilization,or disposal systems do not exceed their hydraulic treatment
capacities,no permits for sewer line extensions shall be issued to wastewater treatment systems
owned or operated by municipalities, counties, sanitary districts or public utilities unless they
meet the following requirements:
1) Prior to exceeding 80 percent of the wastewater treatment system's permitted
hydraulic capacity(based on the average flow of the last calendar year),the permittee
must submit an approvable engineering evaluation of their future wastewater
treatment,utilization, and disposal needs. This evaluation must outline specific plans
for meeting future wastewater treatment,utilization, or disposal needs by either
expansion of the existing system,elimination or reduction of extraneous flows,or
water conservation and must include the source(s)of funding for the improvements.
If expansion is not proposed or is proposed for a later date, a detailed justification
must be made to the satisfaction of the Director that wastewater treatment needs will
be met based on past growth records and future growth projections and,as
appropriate, shall include conservation plans or other specific measures to achieve
waste flow reductions.
2) Prior to exceeding 90 percent of the wastewater treatment,utilization,or disposal
systems permitted hydraulic capacity,(based on the last calendar year),the permittee
must obtain all permits needed for the expansion of the wastewater treatment,
utilization,or disposal system and,if construction is needed, submit approvable final
plans and specifications for expansion including a construction schedule. If expansion
is not proposed or is proposed for a later date, a detailed justification must be made to
the satisfaction of the Director that wastewater treatment needs will be met based on
past growth records and future growth projections and, as appropriate,shall include
conservation plans or other specific measures to achieve waste flow reductions.
3) The Director shall allow permits to be issued to facilities that are exceeding the 80
percent or 90 percent loading rates if the additional flow is not projected to result in
the facility exceeding its permitted hydraulic capacity,the facility is in compliance
with all other permit limitations and requirements, and it is demonstrated to the
satisfaction of the Director that adequate progress is being made in developing the
needed engineering evaluations or plans and specifications. In determining the
adequacy of the progress,the Director shall consider the projected flows,the
complexity and scope of the work to be completed and any projected environmental
impacts.
History Note: Authority G.S. 143-215.3;
Eff September 1, 2006.

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