NC0047597_Pretreatment_LTMP_Letter_20230605

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ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
6/13/2023
Via Electronic Mail ([e-mail])
Mr. Tyrone Battle
Industrial Waste Control Manager
City of Durham
101 City Hall Plaza
Durham, NC 27701
Subject: Division Review of Long Term Monitoring Plan (NPDES Renewal Update)
Program: City of Durham
WWTP: South Durham Water Reclamation Facility
NPDES #: NC0047597, Durham County
Dear Mr. Battle:
The Municipal Unit of the Division of Water Resources has reviewed the updated Long Term Monitoring Plan
(LTMP) for the South Durham WRF (NC0047597). The submission was received by the Division on 06/05/2023.
The review indicates that the LTMP is adequate and meets the requirements to establish a site -specific Headworks
Analysis (HWA). Proper implementation of a LTMP is also required by your NPDES permit. Please refer to the
Comprehensive Guidance for North Carolina Pretreatment Programs (Comprehensive Guide) for additional -
information and examples. Modifications to the LTMP must be approved by the Division.
Regardless of this approval action today, within 180 days of the effective date of any reissued NPDES permit (or
any subsequent NPDES permit modification) the Permittee would be required to submit to the Division a written
technical evaluation of the need to revise local limits (i.e., an updated IWS, or documentation of why one is not
needed). This action may include revising, updating, or adding to the list of Significant Industrial Users (SIU's).
Pursuant to 15A NCAC 2H .0907(b) either the Division or the permittee may initiate pretreatment
program revisions.
Federal and State pretreatment regulations require the local delegated pretreatment program to effectively control
and document the discharge of wastewater from Significant/Categorical Industrial Users to the POTW. It is the
POTW's responsibility to ensure that these objectives are consistently met.
If you have any questions or comments, please contact Keyes McGee at [phone] [email:
[e-mail]]. Thank you for your continued support of the Pretreatment Program.
Sincerely,
tkm/du_south ltmp_mod_003 E�t
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for Richard E. Rogers, Jr., Director
Division of Water Resources
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
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919.707.9000