NC0058378_Final Permit_20170721

Water Resources
ENVIRONMENTAL QUALITY
July 21, 2017
Mr. Matthew Klein, President
Carolina Water Service Inc. of North Carolina
PO Box 240908
Charlotte, NC 28224
Dear Mr. Klein:
ROY COOPER
Governor
MICHAEL S. REGAN
Secrelon
S. JAY ZIMMERMAN
Director
Subject: NPDES PERMIT ISSUANCE
NPDES Permit NCO058378
Elk River WWTP
Class WW-2
Avery County
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached final NPDES discharge permit. 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).
The final permit includes the following significant changes from the existing permit:
➢ The components list has been updated on the Supplement to Permit Cover Sheet.
➢ The total residual chlorine footnote has been updated in Section A. (1).
➢ Outfall map has been updated.
If any parts, measurement frequencies or sampling requirements contained in this permit 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 permit shall be final and binding.
Please note that 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 any other Federal, State, or Local governmental permit that may be required.
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, NC 27699-1617
919 807 630Q 919-807-6389 FAX
https:lldeq.nc.govlaboutldivisionslwater-resourceslwater-resources-permitslwastewater-branchlnpdes-wastewater-permits

Mr. Matthew Klein
NC0058378 Renewal
p. 2
If you have any questions or need additional information, please do not hesitate to contact Brianna
Young of my staff at [phone], or via e-mail [[e-mail]].
Sincc�ely,
J 1� f
S. Jay Zimmerman, /P'f^
Director, Division of Water Resources
cc: NPDES Files
Central Files
Asheville Regional Office
ec: Tony Konsul, Regional Manager. Utilities Inc. [[e-mail]]

Permit NCO058378
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NEDES)
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
Elk River WWTP
NC Highway 194, West of Banner Elk
Avery County
to receiving waters designated as the Elk River in the Watauga 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 October 1, 2017.
This permit and authorization to discharge shall expire at midnight on September 30, 2022.
Signed this day July 21, 2017.
S}4ay Zimmerman, P. G. ~~
Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

Permit NCO058378
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 an existing 0.080 MGD wastewater treatment system utilizing:
♦ effluent flow meter
♦ flow splitter box
♦ two (2) parallel contact stabilization package treatment plants
♦ two (2) reaeration chambers
♦ two (2) clarifiers
♦ two (2) aerobic digesters
♦ chlorination
♦ dechlorination
Located west of Banner Elk at Elk River WWTP off of NC Highway 194 in Avery County, and
2. Discharge from said treatment works via Outfall 001, a location specified on the attached map, into
the Elk River [Stream Segment: 8-22-(3)], a waterbody currently classified C-Trout waters within
subbasin 04-02-01 [HUC: 0601010302] of the Watauga River Basin.
Page 2 of 6

Permit NCO058378
Part I.
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from Outfall 001. Such discharges shall be limited and monitored'
by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
(PARAMETER CODES)
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
. Sample
Type
Sample
Location
Flow
50050
0.080 MGD
Continuous
RecordingInfluent
or
Effluent
_
Temperature (°C)
00010
Daily
Grab
Effluent
Total Residual Chlorine
50060
28 Ng/L 2
2/Week
Grab
Effluent
pH
00400
Not < 6.0 or > 9.0
standard units
Weekly
Grab
Effluent
Dissolved Oxygen
00300
Weekly
Grab
Effluent
Fecal Coliform
(geometric mean)
31616
200/100 ml
400/100 ml
Weekly
Grab
Effluent
BOD, 5-day (20°C)
C0310
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent
Total Suspended Solids
C0530
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent
Ammonia (NH3 as N)
C0610
Weekly
Composite
Effluent
Total Nitrogen
(NO2+NO3+TKN)
C0600
Semi -Annually Composite
Effluent
Total Phosphorus
C0665
Semi -Annually Composite
Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR
application system [see A. (2)].
2. The Division shall consider all effluent TRC values reported below 50 µg/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 µg/l.
Condition:
The Permittee shall discharge no floating solids or foam in other than trace amounts.
Page 3 of 6

Permit NCO058378
A. (2) ELECTRONIC REPORTING OF 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. Reportina 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. 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
Page 4 of 6

Permit NC0058378
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: 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:
httL):!/deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory I Supplements Section B. (11.) (b)and Supersedes Section B. (11.) (d) I
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (I 1.)(a) or by a duly authorized representative of that person as described in Part II, Section
B. (I I .)(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 theeDMR 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:
Page 5 of 6

Permit NC0058378
-,ov/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:
U 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 6 of 6

Carolina Water Service, Inc. of North Carolina
Elk River WWTP
NPDES Permit NCO058378
Receiving Stream: Elk River Stream Class: C-Trout
Stream Segment: 8-22-(3) Sub -Basin M 04-02-01
River Basin: Watauga HUC: 601010302
County: Avery
N
A
SCALE
1:24,000
-81.90444, 36.15944
USGS Quad: Elk Park