NC0020184_Pretreatment_New_IUP_letter_20190702

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
NORTH CAROLINA
Environmental Quality
July 2, 2019
Via Electronic Mail ([e-mail])
Chris English
Pretreatment Coordinator
Two Rivers Utilities
P.O. Box 1748
Gastonia, NC 28053
Subject: Pretreatment Review of Industrial User Pretreatment Permit (IUP)
Two Rivers Utilities; Gaston County
WWTP: Long Creek, NPDES#: NCO020184
Dear Mr. English:
The Pretreatment, Emergency Response and Collection Systems (PERCS) Unit of the Division of Water
Resources has reviewed the Industrial User Pretreatment Permit (IUP) original issuance submitted by Two
Rivers Utilities for the following Significant Industrial User (SIU). The IUP was received by the Division on
June 3, 2019.
IUP #
SIU NAME
WWTP
1071
Pharr Yarns, Inc.
Long Creek
The review indicates that with the following comments, the IUPs are adequate and meet 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.
1. The pollutant checklist: I was able to find most of the test results in the submitted report this time.
The only pollutant that I was not able to locate is Xylene, which has no indications in the
application. Please check with the industry and report your findings before August 1, 2019. Please
insure all future permit applications have two checks for each parameter.
2. TTO definition, certification and TOMP on page 10 are not applicable to this SIU, please remove
them next time the IUP was modified or renewed.
3. Long Term Monitoring Plan (LTMP): Antimony needs to be added to Long Creek's LTMP as it was
limited in the IUP. Please submit an updated LTMP before August 1, 2019.
4. Headworks Analysis (HWA): Antimony was added to the headworks analysis with a stream
standard of 0.0056 mg/L for water supply class stream and a literature removal rate of 50%. Site
specific removal rate will be evaluated during next HWA update. TN column on the allocation
table was updated to count ammonia, TKN and organic nitrogen for all SIUs. Updated HWA is
attached.
Noanacawaur�nD � Q��
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919.707.9000

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.
Thank you for your continued cooperation with the Pretreatment Program. If you have any questions or
comments, please contact me at 919-707-3627 [email: [e-mail]] or Deborah Gore, Unit
Supervisor at 919-707-3624 [email: [e-mail]].
Sincerely,
DocuSigned by:
Vivie ng, PERCS Unit
vz/Two Rivers_long_iup_122 E42E88CDBD404A7...
Ec: PERCS Unit File
David Shellenbarger, Two Rivers Utilities
Wes Bell, Mooresville Regional Office
Central Files (Laserfiche)