NC0024333_Pretreatment_IUP_Renewal_Letter_20230707

North Carolina Department of Environmental Quality Division of Water Resources
512 North Salisbury Street 1611 Mail Service Center Raleigh, North Carolina 27699-1611
919.707.9000

Via Electronic Mail ([e-mail])

Mr. Kyle Ketchum
WWTP Superintendent
City of Monroe
P.O. Box 69
Monroe, NC 28111

Subject: Pretreatment Review of Industrial User Pretreatment Permit Renewals
Program: City of Monroe
Wastewater Treatment Plant: City of Monroe WWTP
NPDES #: NC0024333
Union County

Dear Mr. Ketchum:

The Municipal Unit of the Division of Water Resources has reviewed the Industrial User Pretreatment
Permit (IUP) renewals submitted by the City of Monroe for the following Significant Industrial Users
(SIUs). The submissions were received by the Division on May 26th, 2023.

IUP # SIU NAME
CM-11 Tyson Farms, Inc.
CM-30 ATI Specialty Materials, LLC – Bakers South Operations
CM-35 NC BioGas, LLC

The review indicates that the IUPs are adequate and meet the minimum requirements of 15A NCAC 2H
.0916 and 40 CFR 403.8(f)(1)(iii). The allocation table, maintained in the Division’s database, has been
updated accordingly.

Within 180 days of the effective date of any reissued or 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 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.

DocuSign Envelope ID: 57D6DD86-1313-4497-8492-3802BDC0FE75
7/7/2023

North Carolina Department of Environmental Quality Division of Water Resources
512 North Salisbury Street 1611 Mail Service Center Raleigh, North Carolina 27699-1611
919.707.9000

If you have any questions or comments, please contact Octavio Henriquez at [phone] [email:
[e-mail]] or Keyes McGee at [phone] [email: [e-mail]].
Thank you for your continued support of the Pretreatment Program.

oih/mon_monroe_multi_iup_ren_099
Ec: Municipal Unit File
Wes Bell, MRO
Central Files (Laserfiche)
Sincerely,

for Richard E. Rogers, Jr., Director
Division of Water Resources
DocuSign Envelope ID: 57D6DD86-1313-4497-8492-3802BDC0FE75