NC0079561_Draft Permit_20170920

Water Resources
Environmental Quality
September 20, 2017
Mr. John Boone, Mayor
Town of Elk Park -
P.O. Box 248
Elk Park, NC 28622
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. JAY ZIMMERMAN
Director
Subject: Draft NPDES Permit NCO079561
Elk Park WWTP, WW -2
576 Elk River Road, Elk Park 28622
Avery County
Dear Mr. Boone:
In response to your request to renew the subject NPDES permit, the Division of Water Resources (DWR or
the Division) hereby transmits this draft for your review and comment. Please review this document to assure
your understanding of the permit limits and monitoring conditions, and to correct errors, if any.
The Division understands that you have made no significant changes to your facility since the last permit
renewal. We have made the following updates to your previous permit:
1. The facility map has been updated
2. Regulatory citations have been added.
3. Parameter codes have been added to Section A. (1.).
4. Electronic reporting of discharge monitoring reports (eDMR) has been added in Section A. (2).
5. A Mercury TMDL evaluation did not indicate a limit was needed. Therefore, Total Mercury
monitoring has been removed.
Concurrent with this notification, the Division will solicit public comment on this draft by publishing a notice
in newspapers having circulation in the general Avery County area, as required by the NPDES Program.
Please provide your comments, if any, to me via email [[e-mail]] or write to my attention
care of DEQ / DWR / NPDES Program no later than October 20, 2017. Your written comments are welcome
but not mandatory.
Following the mandatory 30 -day public comment period, the Division will review all pertinent comments on
your permit draft, and take appropriate action prior to issuing your NPDES permit final. If you have questions
concerning this draft, please e-mail me or call my direct line [phone]
Sincerely,
Derek Denard, Environmental Specialist
Compliance & Expedited Permitting Unit
Division of Water Resources, NCDEQ
State of North Carolina I Environmental Quality
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919-707-9000

Mr. Boone
August 20, 2017
Page 2 of 2
Enclosure: NPDES Permit NCO032115 (renewal DRAFT)
he NPDES Program Files
ec DWR/ARO, Landon Davidson [landon davidso-i@ncdenr gov], Tim Heim [tim [e-mail]]
Wastewater Operator Certification Group / Maureen Kinney [Maureen Kinney@ncdenr gov]
Town of Elk Park [Townofelkpark@hotmail coin]

NPDES Permit NCO079561
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 Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended, the
Town of Elk Park
is hereby authorized to discharge wastewater from a facility located at the
Elk Park WWTP
576 Elk River Road, Elk Park 28622
Avery County
to receiving waters designated as Little Elk Creek 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 12017.
This permit and authorization to discharge shall expire at midnight on September 30, 2022.
Signed this day , 2017.
S. Jay Zimmerman, P. G., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

NPDES Permit NCO079561
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.
Town of Elk Park
is hereby authorized to:
1. continue to operate a 0.10 MGD wastewater treatment facility that includes the following
components:
♦ inlet bar screen
♦ two (2) 50,000 gallon aeration basins
♦ two (2) blowers
♦ two (2) clarifiers
♦ chlorine contact chamber with sodium hypochlorite liquid feed
♦ dechlorination with sulfur dioxide
♦ two (2) digesters
♦ diesel engine generator
located at the Elk Park WWTP, 576 Elk River Road, Elk Park, Avery County; and
2. discharge from said treatment works via Outfall 001 at the location specified on the attached map
into Little Elk Creek [steam index 8-22-17], currently classified C; Trout waters within Subbasin
04-02-01 [HUC 060101030201 ] of the Watauga River Basin.
Page 2 of 6

NPDES Permit NCO079561
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, monitored and
renortedl by the Permittee as specified below:
EFFLUENT
CHARACTERISTIC
[Parameter Codes]
LIMITS
MONITORING REQUIREMENTS'
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location2
Flow (MGD)
50050
0 100 MGD
Continuous
Recorder
I or E
BOD, 5 -day (20°C) 3
C0310
30 0 mg/L
45 0 mg/L
Weekly
Composite
E
Total Suspended Solids 3
(TSS) (mg/L
C0530
30 0 mg/L
45 0 mg/L
Weekly
Composite
E
NH3 as N (mg/L)
(April 1 — October 31)
C0610
4 2 mg/L
12 6 mg/L
Weekly
Composite
E
NH3 as N (mg/L)
(Novemberl—Marchi l )
C0610
11 0 mg/L
33 0 mg/L
Weekly
Composite
E
Dissolved Oxygen
(DO) (mg/1)
00300
Monitor & Report
Weekly
Grab
E, U & D
Fecal Coliform (#/100ml) 4
(geometric mean)
31616
200/100 ml
400/100 ml
Weekly
Grab
E
Total Residual Chlorine 5
(TRC) (gg/L)
50060
28 µg/L
2/Week
Grab
E
Temperature (°C)
00010
Monitor & Report
Daily
Grab
E
Temperature (°C)
00010
Monitor & Report
Weekly
Grab
U & D
Total Nitrogen (mg/L)
(NO2+NO3+TKN)
C0600
Monitor & Report
Semi -Annually
Composite
E
Total Phosphorus (mg/L)
C0665
Momtor & Report
Semi -Annually
Composite
E
pH (su)
00400
Not < 6 0 nor > 9 0 Standard Units
Weekly
Grab
E
Footnotes
1 The Permittee shall begin subnuttmg Discharge Monitoring Reports electronically using NC DWR's eDMR application
system See Condition A (2 )
2 I = Influent E = Effluent, U = Upstream at least 100 feet above discharge D = Downstream at least 300 feet below
discharge
3 The monthly average BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective mfluent
values (85% removal)
4 Fecal Coliform shall be calculated using the geometric mean, according to the procedure detailed in Part II Section A
5 Total Residual Chlorine lumt and monitoring is required only if chlorine is utilized in the treatment process 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
Conditions
• There shall be no discharge of floating solids or visible foam in other than trace amounts
Page 3 of 6

NPDES Permit NCO079561
A. (2.) ELECTRONIC REPORTING OF 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 H of this permit
(Standard Conditions for NPDES Permits):
• Section B (11.) Signatory Requirements
• Section D. (2.)
• Section D (6 )
• Section E. (5.)
Reporting
Records Retention
Monitoring Reports
1. Reporting Requirements [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 mternet. 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 monitonr_g 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 Repor=s; 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)
Page 4 of 6

NPDES Permit NC0079561
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):Hdeg.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 11,
Section B. (11.)(a) or by a duly authorized representative of that person as described in Part H, 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 ne.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.
Page 5 of 6

NPDES Permit NCO079561
V 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 6 of 6

M
p '_ / Cz A '
ZN r
f t �ias. r • v
N` F 1
t �
'+ t
Elk River (Mill Pond)
[flows northwest]
Little Elk Creek _
[flows northeast]
Outfall
�1
J> Approximate
Facility Boundary
-- �i � 1, }•��,� -�„ 19 '"
FIk
• - � - ; , atir t► �sF` i _.�. _ - ,-moi-., _.-.-.�
19
t3itT2i '
l
-CO Nat,pl Geographic,Societ.y, i-cubed:t
Town of Elk Park - Elk Park WWTP
NPDES Permit NCO079561
576 Elk River Road, Elk Park 28622
Receiving Stream: Little Elk Creek Stream Class: C;Tr
Stream Segment: 8-22-17 Sub -Basin #: 04-02-01
River Basin: Watauga 1 UC: 060101030201
County: Avery
N
SCALE
1:24,000
1:15,000,000
36.1683° N, -81.975° W
NC Grid: C11NW
USGS Quad: Elk Park, NC