NC0025496_IUP Mod_LeeBoy_20201215

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
12/15/2020
Via Electronic Mail (damstall(a lincolntonnc.org)
Debra V. Tunstall
Pretreatment Compliance Technician
City of Lincolnton
P.O. Box 617
Lincolnton, NC 28092
Subject: Pretreatment Review of Industrial User Pretreatment Permit
Program: City Lincolnton
WWTP: City of Lincolnton, NPDES #: NCO025496
Lincoln County
Dear Debra Tunstall:
The Municipal Unit of the Division of Water Resources has reviewed the Industrial User Pretreatment Permit
(IUP) modification submitted by the City of Lincolnton for the following Significant Industrial User (SIU). The
IUP modification was received by the Division on November 30, 2020.
IUP # SIU NAME
0020 ST Engineering LeeBo , Inc. dba
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 IUP was modified as follows; part III, section six, states that total toxic
organics (TTO) certifications are due by June 30 and December 30 of each year. Also, on page five, the TTO
sample collection changed from composite to grab, and the collection frequency by the POTW is once a year. 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/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 Significant Industrial Users (SIU's).
Federal and State pretreatment regulations require the local delegated pretreatment program to effectively control
and document the wastewater discharge 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 Diana Yitbarek at 919-707-9130 [email:
diana.yitbarek(a�ncdenr.gov]. Thank you for your continued support of the Pretreatment Program.
D EQ �� 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 CAROLINA
oePenmamofEntIm—e�iQuality /`� 919.707.9000

Sincerely,
for S. Daniel Smith, Director
Division of Water Resources
dy/lincolnton_iup_053.mod.leeboy
Ec: Municipal Unit File
Wes Bell, Mooresville Regional Office
Roberto Scheller, Mooresville Regional Office
Central Files (Laserfische)