NC0085111_Owner Name Change_20171020

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Water Resources
ENVIRONMENTAL QUALITY
October 20, 2017
Mr. J. Bryce Mendenhall
Carolina Water Service, Inc. of North Carolina
P.O. Box 240908
Charlotte, NC 28205
Subject: NPDES Permit NCO085111
ROY COOPER
Gm,einoi
MICHAEL S REGAN
Sect etag
S. JAY ZIMMERMAN
Dn eua
Transfer of ownership / permit modification
Heather filen WTP
Durham County
Dear Mr. Mendenhall:
The Division hereby re -issues NC0085111. This action is taken to show that your firm now owns the
subject facility. This permit 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 this matter, please contact Emily Phillips at [phone] or via
e-mail [em [e-mail]].
cc: Central Files
Mooresville Regional Office
NPDES Files
,-S" cerely,
- S. Jay Zimmerman, P.G.
Director
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, NC 27699-1617
919 807 6300 919-807-6389 FAX
https://deq.nc.govlaboutldivisionslwater-resourceslwater-resources-permitslwastewater-branchlnpdcs-wastewater-permits

Permit NCO085111
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATERRESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
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,
Carolina Water Service, Inc. of North Carolina
is hereby authorized to discharge wastewater from a facility located at the
Heather Glen WT?
Heather Ridge Subdivision
Durham County
to receiving waters designated as an unnamed tributary to Sevenmile Creek in the Neuse River Basin in
accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, and III.
This permit shall become effective October 20, 2017.
This permit and authorization to discharge shall expire at midnight on January 31, 2019.
Signed this day October 20, 2017
SY. Jay Zimmerman, P.G.
Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

Permit NC0085111
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.
Carolina Water Service, Inc. of North Carolina is hereby authorized to:
1. Continue to operate a greensand and softener drinking -water treatment plant designed to produce
0.036 MGD of potable water with a discharge of filter -backwash and regenerate wastewaters of
approximately 0.003 MGD. This facility is located at the Heather Glen WTP (in the Heather Ridge
Subdivision) near Durham in Durham County.
2. Discharge from said treatment works at the location specified on the attached map into an unnamed
tributary to Sevenmile Creek, currently classified WS -IV NSW waters in the Neuse River Basin.
Page 2 of 7

Permit NCO085111
PART I
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning upon the permit effective date and lasting until permit expiration, the Permittee is
authorized to discharge filter -backwash and regenerate wastewaters from outfall 001. Such discharges shall be
limited and monitored' by the Permittee as specified below:
PARAMETER
(Parameter Code)
LIMITS
MONITORING REQUIREMENTS
Monthly Daily
Average Maximum
Measurement
Frequency
Sample
Type
Sample
Location2
Flow, MGD (50050)
Monthly
Instantaneous
E
Total Suspended Solids (C0530)
30 0 mg/L 45.0 mg/L
Twice/Month
Grab
E
Total Residual Chlorine (TRC) 3 (50060)
17 pg/L
Twice/Month
Grab
E
pH (00400)
> 6.0 and < 9 0 standard units
Twice/Month
Grab
E, U, D
Temperature, °C (00010)
Monthly
Grab
E, U, D
Salinity, ppth (00480)
Monthly
Grab
E, U, D
Conductivity, pmhos/cm (00094)
Monthly
Grab
E, U, D
Dissolved Oxygen, mg/L (00300)
Monthly
Grab
E, U, D
Total Dissolved Solids, mg/L (70295)
Monthly
Grab
E
Total Chloride, mg/L (00940)
Monthly
Grab
E
Total Iron, pg/L (01045)
Monthly
Grab
E
Turbidity, ntu (00070)
Monthly
Grab
E
Total Manganese, pg/L (01055)
Monthly
Grab
E
Total Lead 4, pg/L (01051)
Monthly
Grab
E
Total Copper 4 , pg/L (01042)
Monthly
Grab
E
Total Nitrogen (TN)5 (CO600)
Monitor & Report (mg/L)
Twice/year
Grab
E
Total Phosphorus (C0665)
Monitor & Report (mg/L)
Twice/year
Grab
E
Chronic Toxicity 6 (TGP38)
Quarterly
Grab
E
Footnotes:
1. The permittee shall submit discharge monitoring data electronically using NC DWR's eDMR application
system [see A. (3)].
2. E = Effluent, Upstream (U) = at least 50 feet upstream from the outfall, Downstream (D) = at least 50 feet
downstream from the outfall.
3. The Division shall consider all effluent TRC values reported below 50 pg/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 pg/L.
4. Samples shall be taken in conjunction with quarterly toxicity sampling.
5. For a given wastewater sample, TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total
Kjeldahl Nitrogen, and NO3-N and NO2 are Nitrate and Nitrite Nitrogen, respectively.
6. Chronic Toxicity (Ceriodaphnia) P/F at 90%: March, June, September and December (see condition A. (2.)).
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.
Page 3 of 7

Permit NCO085111
A. (2) CHRONIC TOXICITY PASS/FAIL MONITORING ONLY (QUARTERLY)
[15A NCAC 02B.0200 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 duhia 7 -day pass/fail test. The tests will be performed during the months of
March, June, September and December. 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 TGP313.
Additionally, DWR Form AT -1 (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 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 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. 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.
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

Permit NCO085111
A. (3) ELECTRONIC REPORTING OF 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 11 of this permit
(Standard Conditions for NPDES Permits):
• Section B. (11.) 1. Signatory Requirements
• Section D. (2.) 2. Reporting
• Section D. (6.) 3. Records Retention
• Section E. (5.) 4. 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 / DWR / Information Processing Unit
ATTENTION: Central Files / eDMR
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.
Requests for temporary waivers from the NPDES electronic reporting requirements 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 using eDMR Temporary waivers shall be valid for twelve (12) months
and shall thereupon expire. At such time, DMRs shall be submitted electronically to the Division unless the
permittee re -applies for and is granted a new temporary waiver by the Division.
Information on eDMR and application for a temporary waiver from the NPDES electronic reporting
requirements is found on the following web page:
http•//portal ncdenr.or web/wq/admin/boglipu/edmr
Page 5 of 7

Permit NC0085111
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.
2. Signatory Requirements [Supplements Section B. (11.) (b) and supersedes Section B. (11.) (d)]
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part H, Section
B. (I 1.)(a) or by a duly authorized representative of that person as described in Part H, Section B. (11.)(b). A
person, and nota 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://portal ncdenr.or web/wq/admin/bo ipu/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:
"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 orpersons 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. "
3. 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 6 of 7

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