NC0021156_Pretreatment_IUP_Modification_Letter_20201029

DocuSign Envelope ID: 86C48DF4-562D-420E-80D7-2CDE12765D4E
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
NORTH CAROLINA
Environmental Quality
10/29/2020
Via Electronic Mail ([e-mail])
Ms. Nadine Blackwell
Pretreatment Coordinator
City of Mount Holly
P.O. Box 1279
Clemmons, NC 27012
Subject: Pretreatment Review of Industrial User Pretreatment Permit Modification
Program: City of Mount Holly WWTP
WWTP: City of Mount Holly, NPDES #: NCO021156
Gaston County
Dear Ms. Blackwell:
The Municipal Unit of the Division of Water Resources has reviewed the Industrial User Pretreatment Permit
(IUP) modification submitted by the City of Mount Holly WWTP for the following Significant Industrial User
(SIU). The 1UP was received by the Division on October 5, 2020.
SIU # SIU NAME
1163 Daimler Trucks North America LLC
The review indicates that the IUP is adequate and meets the minimum requirements of 15A NCAC 2H .0905 and
.0916 and 40 CFR 403.8(f)(1)(iii). The allocation table, maintained in the Division's database, has been updated
accordingly.
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).
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 Michael Montebello at (919) 707 -3624 [email:
[e-mail]]. Thank you for your continued support of the Pretreatment Program.
ksl/mountholly iup_023
Ec: Municipal Unit File
Wes Bell, MRO
Central Files (Laserfische)
Sincerely,
DocuSigned by:
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for S. Daniel Smith, Director
Division of Water Resources
D E Q�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
NORTH CRROLINA
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