NC0088838_Permit (Issuance)_20211116

DocuSign Envelope ID:5D00E51A-E73E-4843-90F5-B91AEA515339
ROY COOPER t� ,t ,k sYArt
Governor 'k r •,-a,
ELIZABETH S. BISER j
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S. DANIEL SMITH .044
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Director
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NORTH CA O I A
Environmental Quality
11/16/2021
Mr.Patrick Pierce,Manager
Radiator Specialty Company
605 Lexington Avenue,Suite 100
Charlotte,NC 28203
Subject: Modification to NPDES Permit NC0088838
600 Radiator Road,LLC
Union County
Grade PC-1 Biological WPCS
Dear Permittee:
The Division has received and approved your request to transfer ownership of the subject permit. This
permit modification is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the
Memorandum of Agreement between North Carolina and the U.S.Environmental Protection Agency dated
October 15,2007(or as subsequently amended).
If any parts,measurement frequencies or sampling requirements contained in this modification are
unacceptable to you,you have the right to an adjudicatory hearing upon written request within thirty(30)days
following receipt of this letter. This request must be in the form of a written petition,conforming to Chapter
150B of the North Carolina General Statutes,and filed with the Office of Administrative Hearings(6714 Mail
Service Center,Raleigh,North Carolina 27699-6714). Unless such demand is made,this decision shall be final
and binding.
This permit is not transferable except after notice to the Division. The Division may require modification
or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other
permits which may be required by any other Federal, State,or Local governmental regulation. If you have any
questions concerning these changes,please contact Emily Phillips via e-mail [[e-mail]].
Sincerely,
r--DocuSigned by:
"—8328B44CE9EB4A1...
for S.Daniel Smith,Director
Division of Water Resources
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-707-3600

DocuSign Envelope ID.5D00E51A-E73E-4843-90F5-B91AEA515339
Permit NC0088838
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1,other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission,and the Federal Water Pollution Control Act,as amended,
600 Radiator Road, LLC
is hereby authorized to discharge wastewater from a facility located at
600 Radiator Road
Indian Trail
Union County
to receiving waters designated as an unnamed tributary to South Fork Crooked Creek in the Yadkin Pee-
Dee River Basin in accordance with effluent limitations,monitoring requirements,and other applicable
conditions set forth in Parts I, II,III,and IV hereof
The permit shall become effective January 1, 2021
This permit and the authorization to discharge shall expire at midnight on March 31,2023.
Signed this day November 16, 2021 —DocuSigned by:
'----8328B44CE9EB4A1...
S.Daniel Smith
Director,Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

DocuSign Envelope ID:5D00E51A-E73E-4843-90F5-B91AEA515339
Permit NC0088838
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the
permit conditions, requirements, terms, and provisions included herein.
Radiator Specialty Company is hereby authorized to:
1. Continue to operate a 0.090 MGD Ground Water Remediation treatment facility consisting of:
• one(1)6,000-gallon equalization tank
• one(1)transfer pump
• one(1)packed air stripper column with blower and overflow sump
• effluent meter
• gravity sewer to outfall
Located at Radiator Specialty Company,600 Radiator Road,Indian Trail in Union County.
2. Discharge from said treatment works at the location specified on the attached map into unnamed
tributary to the South Fork Crooked Creek, currently classified C water in the Yadkin River Basin.
Page 2 of 7

DocuSign Envelope ID:5D00E51A-E73E-4843-90F5-B91AEA515339
Permit NC0088838
Part I.
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC .02B .0400 et seq., .02B .0500 et seq.]
Grade PC-1 Biological Water Pollution Control System [15A NCAC 08G .0302]
Beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to
discharge treated groundwater from Outfall 001 of this Grade I facility. Such discharges shall be limited and
monitored' by the Permittee as specified below:
EFFLUENT LIMITATIONS MONITORING REQUIREMENTS
CHARACTERISTICS Monthly Daily Measurement Sample Sample
Average Maximum Frequency Type Location
Flow 2 50050 0.090 MGD Continuous Recording Effluent
Total Suspended Solids(TSS) C0530 30.0 mg/L 45.0 mg/L Quarterly Grab Effluent
Tetrachloroethene 78389 3.3 pg/L Monthly Grab Effluent
Vinyl Chloride 39175 2.4 pg/L Monthly Grab Effluent
pH 00400 Between 6.0 and 9.0 S.U. Quarterly Grab Effluent
1,4-Dioxane 3 82388 80 pg/L Quarterly 3 Grab Effluent
1,1-Dichloroethane 34496 Monitor and Report Quarterly Grab Effluent
Trichloroethene 78391 Monitor and Report Quarterly Grab Effluent
Benzene 34030 Monitor and Report Quarterly Grab Effluent
Methyl Chloride 34418 Monitor and Report Quarterly Grab Effluent
Toluene 34010 Monitor and Report Quarterly Grab Effluent
a
Chronic Toxicity00187 Monitor and Report QuarterlyGrab Effluent
p
Footnotes:
1. The Permittee shall submit Discharge Monitoring Reports electronically using NCDWR's eDMR application
system. See A. (4.).
2. Flow shall be measured with a totalizing flow meter.
3. 1,4-Dioxane measurement shall be conducted by a NC-certified laboratory using EPA Test Method 624.1,and
the results shall be reported to the lower reporting level of the procedure.If a measurement is equal to or greater
than 80 µg/L,then monitoring shall immediately be increased to monthly. See Special Condition A.(3.).
4. Chronic Toxicity (Ceriodaphnia dubia) limit at 90% with testing in January, April, July, and October; see
Special Condition A.(2.).Quarterly toxicity testing shall coincide with the sampling of all the other parameters.
There shall be no discharge offloating solids or visible foam in other than trace amounts.
A. (2.) CHRONIC TOXICITY PERMIT LIMIT (Quarterly)
[15A NCAC 02B .0200 et seq.]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 90%.
Page 3 of 7

DocuSign Envelope ID:5D00E51A-E73E-4843-90F5-B91AEA515339
Permit NC0088838
The permit holder shall perform at a minimum,quarterly monitoring using test procedures outlined in the"North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure,"Revised December 2010,or subsequent versions or
"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised- December 2010) or
subsequent versions.The tests will be performed during the months of January,April,July,and October. These
months signify the first month of each three-month toxicity testing quarter assigned to the facility.Effluent sampling
for this testing must be obtained during representative effluent discharge and shall be performed at the NPDES
permitted fmal effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the
permit limit, then multiple-concentration testing shall be performed at a minimum, in each of the two
following months as described in"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised-December 2010)or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form(MR-1)for the months in which tests were performed,using the parameter code TGP3B for the
pass/fail results and THP3B for the Chronic Value. Additionally,DWR Form AT-3 (original) is to be sent to the
following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1623 Mail Service Center
Raleigh,NC 27699-1623
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days after
the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature.
Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,the
permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the
facility name,permit number,pipe number,county,and the month/year of the report with the notation of"No Flow"
in the comment area of the form. The report shall be submitted to the Water Sciences Section at the address cited
above.
Should the Permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be
required during the following month. Assessment of toxicity compliance is based on the toxicity testing quarter,
which is the three-month time interval that begins on the first day of the month in which toxicity testing is required
by this permit and continues until the final day of the third month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water
Resources indicate potential impacts to the receiving stream,this permit may be re-opened and modified to include
alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an
invalid test and will require immediate follow-up testing to be completed no later than the last day of the month
following the month of the initial monitoring.
Page 4 of 7

DocuSign Envelope ID:5D00E51A-E73E-4843-90F5-B91AEA515339
Permit NC0088838
A.(3.) REOPENER 1,4-DIOXANE
[G.S. 143-215.1(b)]
Upon measurement of an effluent 1,4-Dioxane sample equal to or greater than 80 µg/L, monitoring shall be
increased immediately to monthly. If deemed necessary by the Division, the permit may be reopened to modify
permit requirements to address 1,4-Dioxane monitoring,treatment and/or compliance.
A.(4.) ELECTRONIC REPORTING- DISCHARGE MONITORING REPORTS
[G.S. 143-215.1 (b)]
Federal regulations require electronic submittal of all discharge monitoring reports(DMRs)and program reports.
The final NPDES Electronic Reporting Rule was adopted and became effective on December 21,2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this permit
(Standard Conditions for NPDES Permits):
Section B.(11.) Signatory Requirements
Section D.(2.) Reporting
Section D.(6.) Records Retention
Section E.(5.) Monitoring Reports
Reporting Requirements[Supersedes Section D.(2.)and Section E.(5.)(a)]
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge
Monitoring Report(eDMR)internet application.
Monitoring results obtained during the previous month(s)shall be summarized for each month and submitted
electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit
DMRs electronically using the internet. The eDMR system may be accessed at:
https://deq.nc.gov/about/divisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being
physically located in an area where less than 10 percent of the households have broadband access,then a
temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring
data may be submitted on paper DMR forms(MR 1, 1.1,2,3)or alternative forms approved by the Director.
Duplicate signed copies shall be submitted to the following address:
NC DEQ/Division of Water Resources/Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
See"How to Request a Waiver from Electronic Reporting"section below.
Monitoring results obtained during the previous month(s)shall be summarized for each month and reported via
the eDMR system no later than the last calendar day of the month following the completed reporting period.
Regardless of the submission method,the first DMR is due on the last day of the month following the issuance of
the permit or in the case of a new facility,on the last day of the month following the commencement of discharge.
Starting on December 21,2025,the permittee must electronically report the following compliance monitoring
data and reports,when applicable:
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DocuSign Envelope ID:5D00E51A-E73E-4843-90F5-B91AEA515339
Permit NC0088838
Sewer Overflow/Bypass Event Reports;
Pretreatment Program Annual Reports;and
Clean Water Act(CWA)Section 316(b)Annual Reports.
The permittee may seek an electronic reporting waiver from the Division(see"How to Request a Waiver from
Electronic Reporting"section below).
Electronic Submissions
In accordance with 40 CFR 122.41(1)(9),the permittee must identify the initial recipient at the time of each
electronic submission. The permittee should use the EPA's website resources to identify the initial recipient for
the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity(EPA or the
state authorized by EPA to implement the NPDES program)that is the designated entity for receiving electronic
NPDES data[see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of
electronic submission and for each state. Instructions on how to access and use the appropriate electronic
reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at:
https://www.federalregister.gov/documents/2015/10/22/2015-24954/national-pollutant-discharge-elimination-
system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the"Reporting Requirements"section above.
How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic
reporting waiver,a permittee must first submit an electronic reporting waiver request to the Division. Requests
for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at
least sixty(60)days prior to the date the facility would be required under this permit to begin submitting
monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon
expire. At such time,monitoring data and reports shall be submitted electronically to the Division unless the
permittee re-applies for and is granted a new temporary electronic reporting waiver by the Division. Approved
electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request
may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver
request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on the following
web page:
http://deq.nc gov/about/divisions/water-resources/edmr
Signatory Requirements[Supplements Section B. (11.)(b)and Supersedes Section B.(11.)(d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,Section B.
(11.)(a)or by a duly authorized representative of that person as described in Part II,Section B.(11.)(b). A person,
and not a position,must be delegated signatory authority for eDMR reporting purposes.
For eDMR submissions,the person signing and submitting the DMR must obtain an eDMR user account and
login credentials to access the eDMR system. For more information on North Carolina's eDMR system,
registering for eDMR and obtaining an eDMR user account,please visit the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following
certification[40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED:
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DocuSign Envelope ID:5D00E51A-E73E-4843-90F5-B91AEA515339
Permit NC0088838
"I cert�, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate
the information submitted.Based on my inquiry of the person or persons who manage the system, or those
persons directly responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief true, accurate, and complete.I am aware that there are significant penalties for submitting
false information, including the possibility offines and imprisonment for knowing violations."
1. Records Retention [Supplements Section D. (6.)I
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of at least 3 years from the
date of the report. This period may be extended by request of the Director at any time [40 CFR
122.41].
Page 7 of 7

DocuSign Envelope ID:5D00E51A-E73E-4843-90F5-B91AEA515339
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Latitude: 35° 03' 55" Facility
Longitude: 80° 39' 14" NC0088838 A *
Stream Class: C 600 Radiator Road, LLC Location
Sub-basin: 03-07-12 -*-
Receiving Stream: UT to S. Fork Crooked Creek
North Union County