NC0069761_Issuance of Permit_20180608

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
w LINDA CULPEPPER
Water Resources Interim Director
ENVIRONMENTAL QUALITY
June 8, 2018
Mr.Robert Heaton
Public Utilities Director
403 Beech Mountain Parkway
Beech Mountain, NC 28604
Subject: Issuance of NPDES Permit NC0069761
Pond Creek WWTP
Watauga County
Class WW-2
Dear Mr. Heaton:
Division personnel have reviewed and approved your application for renewal of the subject permit.
This permit renewal 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).
This final permit includes no significant changes from the draft permit previously sent to
you on April 18,2018.
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
decision 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. If you
have any questions concerning this permit,please contact Charles H.Weaver at telephone number(919)
807-6391.
Since ely,
Linda Culpepper
Interim Director,Division of Water Resources
cc: Central Files
NPDES files
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.gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater-permits

Permit NC0069761
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
Town of Beech Mountain
is hereby authorized to discharge wastewater from a facility located at the
Pond Creek WWTP
364 Locust Ridge Road
Beech Mountain
Watauga County
to receiving waters designated as Pond Creek in subbasin 04-02-01 of 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 July 1, 2018.
This permit and authorization to discharge shall expire at midnight on September 30, 2022.
Signed this day June 8, 2018
1-411 c tom%
.a Culpepper, Interim Dir- or
t ivision of Water Resources
By Authority of the Environmental Management Commission
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Permit NC0069761
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 Town of Beech Mountain
is hereby authorized to:
1. Continue operation of an existing 0.4 MGD contact stabilization wastewater
treatment system that includes the following components;
• Polyethylene mixing/feed tank with mixer
• Chemical feed pumps with analog control
• pH meter system
• Influent flow meter
• Inverter motors
• Influent screening
• Ultraviolet disinfection
• Sludge drying beds
This facility is located at the Pond Creek WWTP (364 Locust Ridge Road, Beech
Mountain) in Watauga County.
2. Discharge from said treatment works at the location specified on the attached map
into Pond Creek (Stream Index 8-20-2), a waterbody currently classified C-Trout
waters in sub-basin 04-02-01 (HUC 0601010303) the Watauga River Basin.
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Permit NC0069761
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 via Outfall 001. Such discharges shall be limited
and monitored' by the Permittee as specified below:
PARAMETER - - - LIMITS - ° ° ° •MONITORING.REQUIREMENTS u°
[PCS Code] Monthly Weekly, ' Daily , Measurement . Sample Z'
Average Average'_ Maximum Frequency - - Type--
Sample Location
Flow [50050] 0.4 MGD Continuous Recording Influent or Effluent
BOD,5-day(20°C)3 30.0 mg/L 45.0 mg/L Weekly Composite Influent&Effluent
[00310]
Total Suspended Solids3 - 30.0 mg/L 45.0 mg/L Weekly Composite Influent&Effluent
[00530]
NH3 as N [00610] 2.6 mg/L 7 8 mg/L 2/Month Composite Effluent
(April 1 —October 31)
NH3 as N [00610] 6.6 mg/L 19.8 mg/L 2/Month Composite Effluent
(November 1 —March 30)
Dissolved Oxygen4 [50050] Daily average>5.0 mg/L Weekly Grab Effluent,
(April 1 —October 31)
Dissolved Oxygen [50050] Weekly Grab U&D
Fecal Coliform [31616] 200/100 mL 400/100 mL Weekly Grab Effluent
(geometric mean)
Total Residual Chlorines 28 pg/L 2/Week Grab Effluent
[50060]
Temperature(OC) [00010] Daily Grab Effluent
Temperature(OC) [00010] Weekly Grab U&D
Total Mercury6 [COMER] 1/Permit Grab Effluent
Total Nitrogen [00600] Semi-Annually Composite Effluent
(NO2+NO3+TKN)
Total Phosphorus [00665] Semi-Annually Composite Effluent
Chronic Toxicity? [TGP3B]- Quarterly Composite Effluent
pH [00400] >6.0 and<9.0 standard units Weekly Grab Effluent
Notes:
1. The permittee shall submit discharge monitoring reports electronically using the NC
DWR's eDMR application system [see Section A. (4)].
2. U: upstream at least 100 feet above the outfall. D: downstream at least300 feet below the
outfall.
3. The monthly average BOD5 and Total Suspended Solids concentrations shall not exceed
15% of the respective influent value (85% removal).
4. 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 µg/L.
5. Total Mercury must be sampled once during the permit cycle [see A. (3)].
6. Chronic Toxicity (Ceriodaphnia) P/F at 51%; January, April, July, and October [see A. (2)].
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Permit NC0069761
There shall be no discharge of floating solids or visible foam in other than trace amounts.
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Permit NC0069761
A. (2) CHRONIC TOXICITY PERMIT LIMIT (Quarterly)
[15A NCAC 02B .0200 et seq.]
The effluent discharge shall at no time exhibit observable inhibition of reproduction
or significant mortality to Ceriodaphnia dubia at an effluent concentration of 51%.
The permit holder shall perform at a minimum, quarterly monitoring using test
procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay
Procedure," Revised December 2010, or subsequent versions or "North Carolina
Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised- December 2010)
or subsequent versions. 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.
If the test procedure performed as the first test of any single quarter results in
a failure or ChV below the permit limit, then multiple-concentration testing
shall be performed at a minimum, in each of the two following months as
described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test
Procedure" (Revised-December 2010) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on
the Effluent Discharge Monitoring Form (MR-1) for the months in which tests were
performed, using the parameter code TGP3B for the pass/fail results and THP3B for
the Chronic Value. Additionally, DWR Form AT-3 (original) is to be sent to the
following address:
Attention: North Carolina Division of Water Resources •
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
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
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Permit NC0069761
"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, monitoring will be required during the following month. 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.
•
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.
A. (3) EFFLUENT MERCURY ANALYSIS
[G.S. 143-215.66]
The Permittee shall provide one effluent mercury analysis, using EPA method 1631E,
in conjunction with the next permit renewal application. The sample should be taken
within 12 months prior to the application date. Any additional effluent mercury
measurements conducted from the effective date of this permit and up to the
application date shall also be submitted with the renewal application.
If the result of the mercury analysis is not provided with the application, the
application may be returned as incomplete and the Permittee considered non-
compliant.
A. (4) 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 II of this permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
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Permit NC0069761
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting [Supersedes Section D. (2.) and Section E. (5.) (an
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).
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Permit NC0069761
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-npde s-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
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Permit NC0069761
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 state's eDMR
system shall make the following certification [40 CFR 122.22]. NO OTHER
STATEMENTS OF CERTIFICATION WILL BE ACCEPTED:
"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.)1
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].
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