NC0069761_Draft Permit_20220714

ROY COOPER
Governor
ELIZABETH BISER
Secretary
RICHARD E. ROGERS, Jr.
Director
NORTH CAROLINA
fnvrronmerrfii rtaIr�y
July 12, 2022
Daniel Davis, Director of Utilities
Town of Beech Mountain
403 Beech Mountain Parkway
Beech Mountain, North Carolina 28604-8012
Subject: Review of Permit Draft NPDES NC0069761
Pond Creek WWTP, WPCS Grade WW-2
364 Locust Ridge Road, Beech Mountain
Watauga County
Mr. Davis:
In response to your request to renew the subject NPDES permit, received April 1, 2022, the
Division of Water Resources (DWR or the Division) hereby transmits this draft 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 Jackson 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 August 15, 2022, approximately 30 days after receiving this letter. Your
written comments are welcome but are not mandatory.
SUMMARY OF RENEWAL CHANGES
The Division understands from your Application to Renew that Carolina Water Service, Inc.
(CWS) has made no significant alterations to the subject wastewater treatment system since last
renewal. We have therefore made minimal changes to your permit to include updates to permit
text and site vicinity map.
However, the Division has made corrections to previous permit limits for Ammonia Nitrogen
(NH3 as N). By Rule, Ammonia winter limits may not exceed two (2) times the summer limits
(15A NCAC 2B .0206). Therefore, the previous winter limits of 6.6 mg/L Monthly Average and
19.8 mg/L Weekly Average are hereby lowered to 5.2 mg/L MA and 15.6 WA equal to two (2)
times the summer limits [see Table A. (1.)].
D_E QQ
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617 --
919.707.3616

Daniel Davis, Director of Utilities
Renewal - Draft Permit Review
July 2022
Page 2
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, please email the undersigned at [[e-mail]]. Much of NC State
Government currently functions remotely considering emergency response to Covid 19, therefore
correspondence via email is preferred.
Respe . ully,
Joe . Corporn, P.G.
D . • / DWR NPDES
Enclosure: NPDES Permit NC0069761 (renewal DRAFT)
ec: NPDES Program Files / Laserfiche [draft permit and Fact Sheet]
WSRO/SWPS, Jenny Graznak; Lon Snider, Supervisor
OCU, Maureen Kinney

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
(NPDES)
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 Beach Mountain
is hereby authorized to discharg . stewat' f(o a facilityated at the
364 L
�. .0 a
to receiving waters designated as Pond Creek in hydrological unit 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.
ountain
This permit shall become effective
2022.
This permit and authorization to discharge shall expire at midnight on September 30, 2027.
Signed this day , 2022
Richard E. Rogers, Jr., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

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 Beach Mountain
is hereby authorized to:
1. continue to operate an existing 0.400 MGD contact stabilization wastewater treatment system
utilizing
♦
• chemical feed pumps with analo control
• pH meter system
• influent flow meter
• inverter motors
• influent screening
• ultraviolet disinfectio
• sludge dryi
polyethylene mixing/feed tank with mixer
these facilities located at the Pond Creek WWTP, 364 Locust Ridge Road, Beach Mountain,
Watauga County, and
2. discharge from said treatment works via Outfall 001, at the location specified on the attached map,
into Pond Creek (Stream Index 8-20-2), a waterbody currently classified C-Trout within hydrological
unit 04-02-01 (HUC: 0601010303) of the Watauga River Basin.
Page 2 of 7

Permit NC0069761
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Biological WPCS Grade II WWTP [15A NCAC 08G.0302]
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
and reported 1 by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
[PCS CODE]
LIMITS
MONITORING
REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location 2
Flow
50050
0.400 MGD
Continuous
Recording
I or E
Temperature (°C)
00010
Daily
Grab
E
Total Residual Chlorine 3
50060
28 µg/L
2/Week
Grab
E
Temperature (°C)
00010
Weekly
Grab
U & D
BOD, 5-day (20°C) 4
00310
30.0 mg/L
45.0 mg/L
Weekly
Composite
I & E
Total Suspended Solids 4
(TSS)
00530
30.0 mg/L
45.0 mg/L
Weekly
Composite
I & E
Fecal Coliform
(Geometric mean)
31616
200/100 mL
400/100 mL
Weekly
Grab
E
Dissolved Oxygen
50050
ekly
>ATeekly
Grab
U & D
Dissolved Oxygen
Apr 1 —Oct 31)50050
Dai e : e > 5.
Grab
E
pH (Standard Units)
00400
> 6.1 . nd 9. s.u.
Weekly
Grab
E
Ammonia (NH3 as N)
'summer Aprl — Oct31 ]
0061
2.6 L
: mg/L
2/Month
Composite
E
Ammonia (NH3 as N)
[winter Novi — Mar
��
g
..
2/Month
Composite
E
Chronic Toxicity 5
TGP3B
Quarterly
Composite
E
Total Nitrogen (TN)
(NO2+NO3+TKN)
00600
Semi-
Annually
Composite
E
Total Phosphorus (TP)
00665
Semi-
Annually
Composite
E
Total Mercury 6
COMER
1/Permit
Cycle
Grab
E
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see A. (4)].
2. E = Effluent; I = Influent; U: upstream at least 100 feet above the outfall. D: downstream at least 300 feet below the
outfall.
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 these results fall below 50 µg/L.
4. The monthly averages for BOD-5 and Total Suspended Solids (TSS) concentrations shall not exceed 15% of the
respective influent value (i.e., 85% removal required).
5. Chronic Toxicity (Ceriodaphnia) P/F at effluent 51%; January, April, July, and October [see A. (2)].
6. Total Mercury must be sampled according to EPA field and lab test methods [see A. (3)].
Condition: The Permittee shall discharge no floating solids or foam visible in other than trace amounts.
Page 3 of 7

Permit NC0069761
A. (2.) CHRONIC TOXICITY - PERMIT LIMIT (Quarterly)
[15ANCAC 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 e mont "i1 (i�h tests erformed, using the parameter
code TGP3B for the pass/fail results an. L' 3B fo t onic Val Additionally, DWR Form AT-
3 (original) is to be sent to the following a
oxicology Branch
Raleigh, NC 27699-1621
Or, results can be sent to the email, [e-mail].
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, monitoring
will be required during the following month. Assessment of toxicity compliance is based on the toxicity
Page 4 of 7

Permit NC0069761
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.) EMERCURY ANALYSIS - FFLUENT
[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 Permittee shall sample within the 12-months period prior
to the renewal 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 REPORTIN OF D
[G.S. 143-215.1(b)]
Federal regulations require ele
reports. The final NPDES Elec
21, 2015.
NOTE: This speci c ditio ipi ple is 4-,s des the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
GE M� `STORING REPORTS
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
onitoring reports (DMRs) and program
ted and became effective on December
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 internet. The eDMR system may be
accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr.
Page 5 of 7

Permit NC0069761
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.
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), rmitte iist entify thifiitial recipient at the time
of each electronic submission. The permitt; �i'• ld us
initial recipient for the electron' su ission
EPA's website resources to identify the
Initial recipient of electronic N`IZ S iif rmati . from P r ES -regulated facilities means the entity
(EPA or the state aut iz by Ap i - • leme he ' DES program) that is the designated entity
for receiving elec c NP S dat.\[4 .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.federalregister.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
Page 6 of 7

Permit NC0069761
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:
http://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:
htt . ://de . .nc. • ov/about/divisions/water-resou
Certification. Any person subm.
the following certification [40
WILL BE ACCEPTED:
I certify, under pena(---
(-----11--.ff law, 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."
e ctron
>.`] NO
5. Records Retention [Supplements Section D. (6.)1
state's eDMR system shall make
EMENTS OF CERTIFICATION
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

Town of Beech Mountain
Pond Creek WWTP
Latitude:
Longitude:
River Basin:
Receiving Stream:
State Grid / USGS Quad:
36° 12' 49" N Hydrological Unit:
81° 52' 30" W Stream Class:
Watauga River HUC:
Pond Creek Stream Index:
04-02-01
C; Trout
0601010303
8-20-2
C11NW / Elk Park, NC -TN
Facility
Location
North
NPDES Permit NC0069761
Watauga County