NC0006220_Draft Permit_20190306

ROY COOPER
Governor
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C'�.1 MICHAEL S. REGAN
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.y- " LINDA CULPEPPER
NORTH CAROLINA Director
Environmental Quality
March 6, 2019
Gerald R.Faulkner
City of Kannapolis WTP
401 Laureate Way
Kannapolis, NC 28081
Subject: Draft NPDES Permit NC0006220
Grade I Physical Chemical WPCS
Kannapolis WTP
Rowan County
Dear Mr. Faulkner:
The Division has reviewed your request to renew the subject permit. Please review this draft carefully to
ensure a thorough understanding of the information, conditions, and requirements it contains.
The draft permit includes the following significant changes from the existing permit:
> Regulatory citations have been added.
> Outfall map has been updated.
> The list of treatment components has been updated per the permit renewal application.
> Iron has been removed from the Effluent table in Section A.(1) as there are no longer water quality
standards for iron and the permit renewal application indicated iron sulfate or ferrous sulfate did
not have the potential to be discharged.
> Quarterly monitoring for Hardness has been added to the Effluent table in Section A.(1.)per current
water treatment plan guidance.
➢ Removed former Footnote#2 in Section A. (1) as this is no longer required.
➢ Monitoring frequency for Turbidity has been updated to monthly in Section A. (1.)per current water
treatment plant guidance.
➢ Limits for Zinc have been added to the Effluent table in Section A. (1.)in conjunction with a
Compliance Schedule in Section A. (3)based on a reasonable potential to exceed water quality
standards.
➢ Section A. (4) and Footnote#1 in Section A. (1.)has been updated regarding electronic submission of
effluent data. Federal regulations require electronic submittal of all discharge monitoring reports
(DMRs).
The NC 2007-2014 Water Quality Standard(WQS)Triennial Review was approved by the NC
Environmental Management Committee (EMC)on November 13, 2014. The US EPA subsequently approved
the WQS revisions on April 6, 2016 with some exceptions. The NC Division of Water Resources NPDES
Permitting Unit is required to implement the new dissolved metal standards in all permits public noticed
after April 6, 2016.
The new standards for most metals include acute standards. Further, freshwater standards for several
metals are expressed as the dissolved form of the metals, and seven metals have harness-dependent
equations.As a result, the NPDES Permitting Unit will need site-specific effluent hardness data and
instream hardness data, upstream of the discharge, for each facility monitoring these metals in order to
calculate permit limitations. Effluent hardness and instream hardness sampling, upstream of the discharge,
' 11M
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-707-3712

has been added to this permit at a monitoring frequency of quarterly. See Section A. (1) Effluent Limitations
and Monitoring Requirements.
$
Please note that Irish Buffalo Creek is listed as an impaired waterbody on the North Carolina 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.
With this notification, the Division will solicit public comment on this draft permit by publishing a notice in
newspapers having circulation in the general Rowan County area, per EPA requirements. Please provide
your comments, if any,to me no later than 30 days after receiving this draft permit.
Following the 30-day public comment period, the Division will review all pertinent comments and take
appropriate action prior to issuing a final permit. If you have questions concerning the draft, please contact
me at the telephone number listed at the bottom of this page, or via e-mail [[e-mail]].
Sincerely,
-Ii1/11117
Sydney Carpenter
NPDES Program
cc: NPDES File
Mooresville Regional Office
Aquatic Toxicology Unit

Permit NC0006220
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, the
City of Kannapolis
is hereby authorized to discharge wastewater from a facility located at the
City of Kannapolis WTP
1353 Pump Station Road
Kannapolis
Rowan County
to receiving waters designated as an unnamed tributary to Irish Buffalo Creek(Bakers Branch) in the
Yadkin-Pee Dee River Basin in accordance with effluent limitations, monitoring requirements, and
other conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective.
This permit and authorization to discharge shall expire at midnight on October 31, 2023.
Signed this day.
DRAFT
Linda Culpepper, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8

Permit NC0006220
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.
The City of Kannapolis
is hereby authorized to:
1. Continue to discharge filter backwash and filter to waste wastewaters from a conventional water
treatment plant. This water treatment plant currently has a design potable flowrate of 15 MGD and
a monthly average maximum wastewater discharge of 0.3744 MGD. This facility is located at 1353
Pump Station Road, Kannapolis in Rowan County. Wastewater treatment consists of:
• Equalization Basin
• Clarifier
• Dechlorination
• Residuals Lagoon
• Flow recorder
2. Discharge of treated wastewater from said treatment works at the location specified on the attached
map into an unnamed tributary(Bakers Branch) to Irish Buffalo Creek, currently classified C
waters [Stream Index: 13-17-9-(2)] in sub-basin 03-07-12 [HUC: 0304010502] of the Yadkin-Pee
Dee River Basin.
Page 2 of 8

Permit NC0006220
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
•
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade I Physical Chemical WPCS [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 filter backwash from outfall 001. Such discharges shall be limited
and monitored) by the Permittee as specified below:
EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS
Monthly Daily Measurement Sample
[eDMR Code] Average Maximum Frequency Sample Type Location
Flow(MGD) [50050] Continuous Recording Effluent
Total Suspended Solids [C0530] 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent
pH [00400] z 6.0&<_9.0 standard units 2/Month Grab Effluent
Total Residual Chlorine2 [50060] 17 pg/L 2/Month Grab Effluent
Turbidity(NTU) [00070] Monitor&Report Monthly Grab Effluent
Aluminum(pg/L) [01105] Monitor&Report Quarterly Grab Effluent
Manganese(pg/L) [01055] Monitor&Report Quarterly Grab Effluent
Total Zinc3(Ng/L) [01092] 135.3 pg/L 134.2 pg/L Monthly Grab Effluent
Fluoride(pg/L) [00951] Monitor&Report Quarterly Grab Effluent
Total Copper(pg/L) [01042] Monitor&Report Quarterly Grab Effluent
Total Phosphorus(TP)(mg/L) [C0665] Monitor&Report Quarterly Grab Effluent
Total Nitrogen(TN)(mg/L) [C0600] Monitor&Report Quarterly Grab Effluent
Hardness-Total as Monitor&Report QuarterlyGrab Effluent
[CaCO3 or(Ca+Mg)]^ (mg/L) [00900] p
Hardness-Total as 6 Monitor&Report Quarterly Grab Upstream
[CaCO3 or(Ca+Mg)] (mg/L) [00900]
Whole Effluent Toxicity Monitoring6 [TGP3B] Monitor&Report Quarterly Grab Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system
[see A. (4)].
2. The Division shall consider all effluent TRC values reported below 50 ug/L to be in compliance with the
permit. However,the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory(including field certified), even if these values fall below 50 ug/L.
3. See Section A. (3) for a compliance schedule regarding Total Zinc monitoring over the next five years.
4. Effluent hardness sampling should be performed in conjunction with testing for hardness dependent metals
(cadmium, copper,lead,nickel, silver, and zinc).
5. The Permittee shall sample instream hardness, upstream of the facility's discharge. The sample shall be
representative of the hardness in the receiving stream. If the Permittee is a member of the Monitoring
Coalition Program, sampling for instream hardness may be waived as long as the Monitoring Coalition
agrees to sample hardness at the nearest upstream location, at a minimum frequency of quarterly, and the
Permittee has obtained approval from DWR-NPDES Permitting Unit that the upstream station being
monitored by the Coalition is representative of the receiving stream for this discharge. The Permittee is
Page 3 of 8

Permit NC0006220
responsible for submitting instream hardness test results with its permit renewal application package.If
Coalition membership is cancelled or the Coalition terminates instream hardness sampling at the approved
station,the Permittee will immediately notify the Division and resume sampling for instream hardness,
upstream of its discharge.
6. Whole Effluent Toxicity testing: Ceriodaphnia dubia 7 day pass/fail test @ 90%concentration. See
Condition A.(2.)for toxicity testing requirements.Toxicity testing should be performed during the months
of January,April,July and October.
All samples collected should be from a representative discharge event.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A. (2.) CHRONIC TOXICITY MONITORING (QUARTERLY)
[15A NCAC 02B .0500 et seq.]
The permittee shall conduct quarterly chronic toxicity tests using test procedures outlined in the"North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure,"Revised December 2010, or subsequent
versions.
The effluent concentration defined as treatment two in the procedure document is 90 %. The testing
shall be performed as a Ceriodaphnia dubia 7-day pass/fail test. 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 final
effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form(MR-1) for the month in which it was performed,using the parameter
code TGP3B. Additionally, DWR Form AT-1 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Environmental Sciences Section
1621 Mail Service Center
Raleigh,N.C. 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental 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 and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. 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 Environmental Sciences Section at the address cited above.
Page 4 of 8

Permit NC0006220
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then
monthly monitoring will begin immediately. Upon submission of a valid test, this monthly test
requirement will revert to quarterly in the months specified above.
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.
If the Permittee monitors any pollutant more frequently then required by this permit, the results of such
monitoring shall be included in the calculation &reporting of the data submitted on the DMR & all AT
Forms submitted.
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.) SCHEDULE OF COMPLIANCE (OUTFALL 001)
[NCGS 143-215.1(b)]
1. Within one year from the effective date of the permit the Permittee shall submit to the Division of
Water Resources a Corrective Action Plan summarizing the actions or strategy to be taken to
achieve compliance with the Total Zinc limits at Outfall 001. Specific dates for completion or
implementation of each action shall be included.
2. Within two years from the effective date of the permit submit a report to the Division summarizing
actions taken in accordance with the Corrective Action Plan.
3. Within three years from the effective date of the permit submit a report to the Division summarizing
actions taken in accordance with the Corrective Action Plan.
4. Within four years from the effective date of the permit submit a report to the Division summarizing
actions taken in accordance with the Corrective Action Plan.
5. Achieve compliance with Total Zinc limits specified in Section A. (1) within five years of the
permit effective date.
Upon approval of the Corrective Action Plan by the Division, the report and actions become an
enforceable part of this permit. Any modifications to the schedule shall be requested to the Division at
least ninety(90) days before the deadline. Modifications to the schedule in excess of four months will
be subject to public notice.
A. (4.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[NCGS 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):
Page 5 of 8

Permit NC0006220
• Section B.(11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E.(5.) Monitoring Reports
1. Reporting [Supersedes Section D.(2.)and Section E.(5.)(a)1
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. Until such time that the state's
eDMR application is compliant with EPA's Cross-Media Electronic Reporting Regulation
(CROMERR),permittees will be required to submit all discharge monitoring data to the state
electronically using eDMR and will be required to complete the eDMR submission by printing,
signing, and submitting one signed original and a copy of the computer printed eDMR 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
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 mailing address
above. 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, 2020, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
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).
2. Electronic Submissions
Page 6 of 8

Permit NC0006220
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: http://www2.epa.gov/compliance/final-national-pollutant-discharge-elimination-
system-npdes-electronic-reporting-rule.
Electronic submissions must start by the dates listed in the"Reporting Requirements"section above.
3. 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:
https://deq.nc.gov/about/divisions/water-resources/edmr
4. 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 states eDMR system shall make
the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION
WILL BE ACCEPTED:
Page 7 of 8

Permit NC0006220
"I certify,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.)l
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 122.411
Page 8 of 8

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NC0006220 - City of Kannapolis WTP
County: Rowan Latitude: 35°30'34"N N
Sub-Basin: 03-07-12 Longitude: 80°38'48"W Facility
HUC: 0304010502 USGS Quad: Enochville N.C. J
Stream Class: C :K
Stream Index: 13-17-9-(2) Location
River Basin: Yadkin-Pee Dee (not to scale)
Receiving Stream:UT to Irish Buffalo Creek