NC0027626_Draft Permit_20230614

n,STATE<,
ROY COOPER
Governor
ELIZABETH BISER
Secretary ,�a
RICHARD E. ROGERS, JR ��0""�•
Director NORTH CAROLINA
Environmental Quality
June 13,2023
William N. Stovall,PE.,Director of Engineering
North Carolina Department of Public Safety(NCDPS)
4216 MSC,c/o Central Engineering
Raleigh,North Carolina 27699-4216
Subject: Review of Renewal Draft
NPDES Permit NCO027626
Caledonia Correctional Institution#3305
Wetlands WWTP,WPCS Class WW-1
2787 Caledonia Drive, Tillery
Halifax County
Mr. Stovall:
In response to your request to renew the subject NPDES permit,received September 22,2022,the Division
of Water Resources(DWR or the Division)hereby transmits this draft permit for your review and comment.
Please review this document carefully to assure your understanding of the permit 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 Halifax County area, as required by the NPDES
Program. Please provide your written comments,if any,to me via email [e-mail]], or write
to my attention care of NCDEQ/DWR/NPDES Program no later than July 24,2023,approximately 30
days after receiving this letter. Your written comments are welcome,but they are not mandatory.
The Division understands from your application that the NCDPS has made no significant alterations to the
subject WWTP since last renewal but requests a WPCS reclassification. Accordingly,we have updated your
permit map and revised permit text and format. Please note the following issues and changes.
Summary of Changes/Renewal Rationale
1. Per your renewal request(April 7, 2023),DWR has reclassified the subject WWTP from a
Grade 2 to WPCS Grade-1 [as approved on April 27,20231 by the Division's Raleigh
Regional Office(RRO) and the NC Operator Certification Unit(OCU).
2. Accordingly for renewal,we have adjusted your Effluent Characteristics, Limits,and
Monitoring Requirements in accord with permitting guidance for a WPCS Grade-I facility
[see A. (1.)]. Parameters of Concern(POCs)with permit limits shall be monitored
2/Monthly; POCs without limits are monitored Monthly [NCAC 2B .05081. Other POCs
shall be sampled Quarterly requiring Monitor and Report.
3. Your recent compliance record for Fecal Coliform shows a violation in July 2022.Your
request to discontinue monitoring Fecal Coliform is denied. Whole Effluent Toxicity(WET)
is required—no changes recommended.
North Carolina Department of Environmental Quality I Division of Water Resources
D 1Q 512 North Salisbury Street 11617 Mail Service Center I Raleigh,North Carolina 27699-1617--919.707.3616

William N. Stovall
Permit Renewal-Draft Review
June2023
Page 2
4. Lastly, for your convenience,we have resorted your effluent table by Measurement
Frequency,most-often to least-often sampled [see Table A. (1.)].
The NPDES standard conditions(Parts II, III, and IV), are part of this permit but are not included in this
draft document(cover,map, and Part I). The latest version of Parts II,III, and IV are available
at https://bit.ly/2BZ4xxx and can be viewed online or downloaded as a PDF file.
Following the mandatory 45-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 concerning
this draft,please e-mail the undersigned [e-mail]].
Respectfully,
Jo R. Corpo on,P.G
CDEQ/D R/N ES Permitting
Enclosure: NPDES Permit NC0027626(renewal DAFT)
he: NPDES Program Files [Laserfiche]
ec: RRO,Vanessa Manuel
OCU,Maureen Kinney
Cindy Moore [[e-mail]]
William,N. Stovall[[e-mail]]
Hubert Whitehead[[e-mail]]

Permit NCO027262
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NE DES)
In compliance with the provisions 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
North Carolina Department of Public Safety (NCDPS)
is hereby authorized to discharge wastewater from a facility located at the
Caledonia Correctional Institution #3305 WWTP
2887 Caledonia Drive, Tillery
Halifax County
to receiving waters designated as the Roanoke River, within the Roanoke River basin in accordance with
effluent limits, monitoring requirements, and other conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective , 2023.
This permit and authorization to discharge shall expire at midnight on February 28, 2027.
Signed this day 2023.
for Richard E. Rogers, Jr, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

Permit NCO027262
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.
North Carolina Department of Public Safety (NCDPS)
is hereby authorized to:
1. continue to operate an existing 0.500 MGD constructed wetlands wastewater treatment system
utilizing,but not limited to, the following components:
• Influent headwork' s with coarse bar screen and fine rotary screens
• Influent pump station
• Wetlands treatment system Chlorination/Dechlorination disinfection system
• Magnetic flow meter
• Two 10-acre primary lagoons
• Effluent pump station
these facilities located at the Caledonia Correctional Institution#3305, 2787 Caledonia Drive,
Tillery,NC, Halifax County, and
2. discharge from said treatment works via Outfall 001, a location specified on the attached map, into
the Roanoke River [stream-segment 22-(26)], a waterbody currently classified C waters within
hydrological unit 03-02-08 [HUC: 0301010702] of the Roanoke River Basin.
Page 2 of 7

Permit NCO027262
PART I
A. (L) EFFLUENT LIMITS AND MONITORING REQUIREMENTS
[15A NCAC 02B.0400 et seq., 15A NCAC 0213.0500 et seq.] WWTP Class WW-1 [15A NCAC 08G.0302]
During the period beginning on the effective date of the 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 EFFLUENT LIMITS MONITORING
CHARACTERISTICS REQUIREMENTS
Monthly Daily Measurement Sample Sample
Parameter Code Average Maximum Frequency Type Location2
Flow(MGD) 50050 0.500 Continuous Recorder I or E
Fecal Coliform 31616 200/100 ml 400/100 ml 2/1\4onth Grab E
(geometric mean)
pH(Standard Units) 00400 28 µg/L 2/Month Grab E
Oil and Grease 00552 30.0 mg/L 60 mg/L 2/Month Grab E
(Hexane extraction method)
Total Residual Chlorine 3 50060 28 µg/L 2/Month Grab E
BOD,5-day(20°C) C0310 30.0 mg/L 45.0 mg/L 2/Month Composite E
Total Suspended Solids C0530 90.0 mg/L 135.0 mg/L 2/Month Composite E
Surfactants(MBAS)(mg/L) 38260 Monitor and Report 2/Month Composite E
Temperature(°C) 00010 Monitor and Report Monthly Grab E
Ammonia[NH3 as N] (mg/L) C0610 Monitor and Report Monthly Composite E
Total Nitrogen(mg/L) C0600 Monitor and Report Quarterly Composite E
Total Phosphorous(mg/L) C0665 Monitor and Report Quarterly Composite E
Whole Effluent Toxicity(WET)2 TGE6C Monitor and Report Quarterly Grab E
Acute
Footnotes:
1. Beginning on the effective date,the permittee shall submit discharge monitoring reports electronically
using the Division's eDMR reporting system[see A.(3)].
2. 1=Influent;E=Effluent.
3. The Division shall consider compliant all effluent TRC values reported below 50 µg/L.However,the
Permittee shall continue to record and submit all values reported by North Carolina-certified test
methods(including field certified),even if results test below 50 µg/L.
4. WET testing(Acute)using Fathead Minnow(Pimephales promelas),24-hour static test during the
months of January,April,July, and October[see A. (2)].
Condition: The Permittee shall discharge no floating solids or foam visible in other than trace amounts.
Page 3 of 7

Permit NCO027262
A. (2.) ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY)
[15A NCAC 02B .0200 et seq.]
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the
North Carolina Procedure Document entitled"Pass/Fail Methodology For Determining Acute Toxicity
In A Single Effluent Concentration" (Revised December 2010, or subsequent versions). The monitoring
shall be performed as a Fathead Minnow (Pimephales promelas) 24-hour static test. The effluent
concentration at which there may be at no time significant acute mortality is 90% (defined as treatment
two in the procedure document). 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.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing,this
monthly test requirement will revert to quarterly in the months specified above.
All toxicity testing results required as part of this permit condition will be entered electronically using
the Division's eDMR system for the month in which it was performed, using the parameter code
TGE6C. Additionally, DWR Form AT-2 (original) is to be sent to the following address:
North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh,NC 27699-1621
Or, results can be sent to the email, ATForms.ATB(a�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, then
monthly monitoring will begin immediately until such time that a single test is passed. Upon passing,
this monthly test requirement will revert to quarterly in the months specified above. 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 NCO027262
Should any test data from either these monitoring requirements 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 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 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):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. 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.
Page 5 of 7

Permit NC0027262
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;
• 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 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.federalre ig ster.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.
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:
Page 6 of 7

Permit NC0027262
hLtp://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:
hLtp:Hdeg.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:
7 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.)]
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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North Carolina Department of
Public Safety (NCDPS) Facility
Caledonia Correctional Institution#3305 WWTP Location
Northeast of Tillery (not to Scale)
Receiving Stream: Roanoke River HUC: 0301010702
Hydrological Unit: 03-02-08 Drainage Basin: Roanoke River
Latitude: 36'18'51" Stream Class: C
Longitude: 77'26'06" NPDES Permit NCO027626
State Grid/USGS Ouad: B29SW/Boones Crossroads,NC North Halifax County