NC0021156_Approval_20220810

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ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
City of Mount Holly
Attn: Doug Shoutd, Division Manager of Wastewater
P.O. Box 406
Mount Holly, NC 28120
Transmitted via email to [e-mail]
8/10/2022
Subject: Review of Industrial Waste Survey (IWS)
Program: City of Mount Holly
Mount Holly WWTP (NPDES No NC0021156)
Gaston County
Dear Permittee,
The Municipal Unit of the Division of Water Resources has reviewed the Industrial Waste Survey (IWS) for the
City of Mount Holly. The IWS was initially received by the Division on December 13, 2021, followed by more
information and revisions received on May 4, 2022 and July 28, 2022. The City's NPDES permit require proper
completion of an IWS. The review indicates that the IWS is adequate and meets the requirements of 40 CFR 403.8
(f) (2). Please ensure to replace or update POTW's IWS with the approved one.
The City's IWS included 25 industrial, commercial, and institutional (ICI) users and currently has 3 Significant
Industrial Users (SIUs).
Please remember it is the responsibility of the POTW to continue efforts to ensure that any SIU, as defined by
NCAC 15A 2H .0903(b)(30) (A) through (D), are identified and subsequently added to the City's pretreatment
program. This includes evaluating new IUs before they commence discharge and evaluating existing IUs determined
to be not SIUs that make changes to their process.
Next IWS Due Date: August 10, 2027, unless conditions at the POTW or industrial users change significantly and
thus warrant an earlier submittal. Furthermore, within 180 days of the effective date of any reissued/modified
NPDES permit, 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 SIUs. Pursuant to 15A NCAC 02H .0907(b), either the Division or the
Permittee may initiate pretreatment program revisions.
Thank you for your continued cooperation with the Pretreatment Program. If you have any questions or comments,
please contact Keyes McGee at [e-mail], or the Unit Supervisor, Michael Montebello, at
michael.montebello @ncdenr. goy.
Sincerely,
LtduL
by:
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C464531431644FE...
for Richard E. Rogers. Jr., Director
Division of Water Resources
dy/Mount Holly.21156.iws.2022
cc: SUEZ/ Pretreatment Consultant/ Nadine Blackwell
MRO/Water Quality - Pretreatment/ Wes Bell
Municipal Unit File and Central Files (Laserfiche)