NC0085928_Draft Permit_20210127

ROY COOPER
•
Governor i r'
MICHAEL S. REGAN sr lr
Secretary w r a
S. DANIEL SMITH
Director NORTH CAROLINA
Environmental Quality
January 27, 2021
z American Truetzschler Inc.
c/o Mike Stanforth,Principal Engineer
625 Huntsman Court
Gastonia,North Carolina 28054
Subject: NPDES Permit DRAFT Review
NC0085928, WWTP Grade PC-1
American Truetzschler Inc. - GW-REM
Mecklenburg County
Dear Mr. Stanforth:
The Division of Water Resources (DWR or the Division)received on December 27, 2019 your
application to renew the subject permit and your Delegation of Signatory Authority. Please
review the attached renewal draft carefully to ensure your understanding of its limits and
monitoring conditions, and to correct errors, if any.
Concurrent with this notification,the Division will solicit public comment on this draft by
publishing a notice in newspapers having circulation in the general Mecklenburg County area, as
required by the NPDES Program. Please submit your written comments(if any), to my attention,
NCDEQ/DWR/NPDES no later than February 28,2021 (approximately 30 days after
receiving this document). We welcome your written comments,but they are not mandatory.
Data Evaluation. The Division understands that American Truetzschler Inc(ATI)has made no
significant alterations to treatment processes since last renewal. In keeping with current NPDES
Permitting Guidance,we have considered all monitoring data submitted by applying reasonable
potential analyses(RPA) as required to evaluate each parameter of concern (POC). By this mean,
we estimate the potential for each POC to exceed its respective surface water-quality standard.
ATI's analytical databases for chlorinated hydrocarbons do not show reasonable potential(RP)
except for the parameter Tetrachloroethene(PCE). PCE does show RP (Maximum Predicted
exceeds the Allowable Concentration),based on one effluent detection.
Permit Renewal Changes: Based on the above evaluation, DWR has relaxed permit monitoring
for POCs from Monthly to Quarterly except for PCE,to remain Monthly requiring a limit of 0.35
µg/L [see section A. (1.)]. DWR feels that, despite relaxing the monitoring frequency,monitoring
of all POCs should continue as prudent in favor of protecting the environment considering a
receiving stream classed as WS-IV; CA(water supply/habitat critical area), impaired for pH, and
analytes classified as carcinogenic.
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11617 Mail Service Center I Raleigh,North Carolina 27699-1617—919.707.9000

Mike Stanforth
Draft Permit Review Jan2021
Page 2 of 2
Lastly, we have revised and updated permit texts and the site location map.
Please note that the receiving stream is listed as impaired for low pH on the North Carolina 2018
303(d) Impaired Waters List. Addressing impaired waters is a high priority with the Division,
and instream data will continue to be evaluated. If there is noncompliance with permitted
effluent limits and stream impairment can be attributed to your facility, then mitigative measures
may be required.
Monthly Report Submittals: Federal regulations require electronic submittal of all program
reports and Monthly Discharge Monitoring Reports(DMRs); see Permit Condition A. (3.). Our
records show that you have successfully registered for the Electronic Discharge Monitoring
Report(eDMR)program. If you have completed and submitted to DWQ an Electronic Signature
Agreement, you are no longer required to submit DMR hardcopy as back-up to the eDMR.
The NPDES standard conditions(Parts II, III, and IV), as part of this permit, are not included in
this draft document(cover,map, and Part I). The conditions are identical to your current permit
except that agency and division names have been updated. The latest version is available
at https://bit.ly/2BZ4xxx and can be viewed online or downloaded as a PDF file.
Following the mandatory 30-day Public Comment period, the Division will review all pertinent
comments, if any, and take appropriate action prior to issuing an NPDES permit final.
If you have questions,please email the undersigned at [joe.corporon@a,ncdenr.gov]. In support of
mandated emergency response to Covid 19,most of NC state government currently functions
remotely,therefore correspondence via email is preferred.
Respectfully,
Joe R. C oron, .G.
DEQ/ /NPDES Permitting
Enclosure: NPDES Permit NC0085928 (renewal draft)
DWR/NPDES Program Files Laserfiche
DWR/OCU,Maureen Kinney
DWR/MRO,attention Cory Basinger
DWR/ATB,attention Zach Thomas,cc Cindy Moore
[e-mail]
Public Water Supply Section

Permit NC0085928
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Caro ' a Environmental Management
Commission, and the Federal Water Pollution C• . Act, as amended,the
American Truetz c er, I , .
is hereby authorized to disch. =: , . to from a facility located at
Arne •c e :c : GW-REM
1231 0s4L •
en s usr elgCount
Road, Charlotte
f Y
to receiving waters designat- ed tributary of the Catawba River, Catawba River Basin,in
accordance with effluent limita' 6 .: . onitoring requirements, and other conditions set forth in Parts I,
II, III and IV hereof.
This permit shall become effective , 2021 .
This permit and authorization to discharge shall expire at midnight on June 30, 2025.
Signed this day , 2021.
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1of7

Permit NC0085928
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this 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.
American Truetzschler, Inc.
is hereby authorized to:
1. continue to operate an existing 0.050 MGD groundwater remediation system consisting of
• an equalization tank,
• particulate filter,
• a sodium cation-exchange system,
• a crushed limestone filtration unit and
• an air stripper; \\
• compost filters (to replace effluent nutrients).
these facilities located at American Truettschler, Inc., 12300 Moores Chapel Road, Charlotte,
Mecklenburg County,,td /\-
2. discharge from said treatment works via Outfall 001, at the location specified on the attached map,
into an unnamed tributary (UT) to the Catawba River [stream segment 11-117] a waterbody
currently classified WS-IV; CA located within Subbasin 03-08-34 [HUC:03050103] of the
Catawba River Basin.
Page 2 of 7

Permit NC0085928
Part I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[NCAC 02B.0400 et seq., 02B.0500 et seq.] Grade PC-1 [15A NCAC 08G .0302]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge treated wastewater from Outfall 001. Such discharges shall be
limited,monitored and reported 1 by the Permittee as specified below:
EFFLUENT LIMITS MONITORING
CHARACTERISTICS REQUIREMENTS
[Parameter Codes] Monthly Daily Measurement Sample Sample
Average Max Frequency Type Location 2
Pumping
Flow [MGD]3 50050 0.050 Weekly Log E
or Meter
Tetrachloroethylene [PCE] 34475 0.35 µ Monthly Grab E
pH Standard Units 00400 of<6.0 9.0 Monthly Grab I
Trichloroethylene[TCE], µg/L Quarterly Grab E
1,2-Dichloroethane [1,2 DCE] µg/L Quarterly Grab E
1,1-Dichloroethane, [1,1 ) µ � Quarterly Grab E
1,1-Dichloroethene [1,1 DC 0 Quarterly Grab I
1,1,1-Trichloroethane [TCA], µ . 4506 Quarterly Grab E
Chronic Toxicity 4 TGP3B Quarterly Grab E
Footnotes:
1. The Permittee shall submit discharge Monitoring Reports electronically using
NCDWR's eDMR application system [See Section A.(3.)].
2. Sample Location: E=Effluent.Effluent characteristics shall be sampled and monitored
to coincide with toxicity sampling,as appropriate to frequency.
3. For periods of no flow,the Permittee shall submit an eDMR indicating"No Flow"or
"No discharge."
4. Chronic Toxicity(Ceriodaphnia P/F at 90%),monitor Quarterly in February,May,
August and November[see Special Condition A. (2)].
Condition: The Permittee shall discharge no floating solids or foam visible in other than trace amounts.
Page 3 of 7

Permit NC0085928
A. (2.) CHRONIC TOXICITY 7-DAY PASS/FAIL— LIMITED
[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%.
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
February,May,August, and November. 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 final effluent
discharge below all treatment processes.
If the test procedure performed as the first test of any sglee2luarter results in a failure or ChV
below the permit limit, then multiple-concentration sing sh`41 be performed at a minimum, in
each of the two following months as described in arth Caro �Phase II Chronic Whole
Effluent Toxicity Test Procedure" (Revised-Dece er0�0, or subequent versions).
\v
All toxicity testing results required as part of this p= it ition will be entered on the Effluent
Discharge Monitoring Form(MR-1)fordoemonths . .c sts were performed,using the
parameter code TGP3B for the pa s,a re tilts and. HP : for the Chronic Value. Additionally,
DWR Form AT-3 (original)is to b nt tl�folio ing address:
.' C Q' 'vision of Water Resources
Scie s ion/Aquatic Toxicology Branch
16 ail S 'ce Center
Ralei tii,NC 27699-1621
Or,results can be sent to the email,ATForms.ATBc ncdenr.gov.
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.
Page 4 of 7

Permit NC0085928
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.
A. (3.) 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 folio g 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
1. Re•ortin. Re'uiremen-Al e._'e edes S•cti! 1_ /. 2. and Section E. 5. a
The permittee shall report •i harge m., o ..1 data electronically using the NC DWR's Electronic Discharge
Monitoring Report(eDMR) ..s t et app'c;do
g
Monitorin results obtained d \e •r= 'ous month(s)shall be summarized for each month and submitted
electronically using eDMR. The e l .' 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.
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:
• Sewer Overflow/Bypass Event Reports;
Page 5 of 7

Permit NC0085928
• 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).
2. 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 . • use the appropriate electronic reporting o
tool will be available as well. Information on EPA's NPDES e mc ' -..rung Rule is found at:
https://www.federalregister.gov/documents/2015/10/22/20 - 54/nationa ..llutant-discharge-elimination-system-
npdes-electronic-reporting-rule
Electronic submissions must start by the dates list e"R o ing Requirements"section above.
3. How to Request a Waiver from Electronic o
The permittee may seek a temporary electrpti 'ortP iver from the Division. To obtain an electronic reporting
waiver,a permittee must first submit an ele onic r ortfng waiver request to the Division. Requests for temporary
electronic reporting waives must be submitte in writing to the Division for written approval at least sixty(60)days
prior to the date the facilityuld be requi ed under this permit to begin submitting monitoring data and reports. The
duration of a temporary waive shall not x eed 5 years and shall thereupon expire. At such time,monitoring data and
reports shall be submitted electrdnicall t the Division unless the permittee re-applies for and is granted a new
temporary electronic reporting waiver 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
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.)
fitil
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
Page 6 of 7

Permit NC0085928
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:
"1 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 of fines and imprisonment for knowing violations."
5. Records Retention [Supplements Section D. (6.)1
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

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American Truetzschler, Inc. Facility
12300 Moores Chapel Road, Charlotte Location •
pnot to scale ,r.3 ,
Receiving Stream: UT to Catawba River River Basin: Catawba
Stream Class: WS-N;CA Sub-Basin: 03-08-32
Stream Segment: 11-117 HUC: 03050101 NPDES Permit NC0085928
Outfall Latitude: 36°15'31"N Longitude: 81°00'10"W North
State Grids/USGS: F14SE/Mt Holly,NC Mecklenburg County