NC0083071_Permit Issuance_20180112

4
i
Water Resources
ENVIRONMENTAL QUALITY
January 12, 2018
Mayor Steve Hooper
Town of Robbinsville
PO Box 126
Robbinsville, NC 28771-0126
ROY COOPER
Governor
MICHAEL S. REGAN
Seeremry
LINDA CULPEPPER
lnfemr Dveclw
Subject: NPDES PERMIT ISSUANCE
NPDES Permit NCO083071
Robbinsville WTP
Class PC -I
Graham County
Dear Mayor Hooper:
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 IS,
2007 (or as subsequently amended).
The final permit includes the following significant changes from the existing permit:
➢ Section A. (3) has been added to require electronic submission of effluent data, and a footnote
has been added in Section A. (1). Federal regulations require electronic submittal of all
discharge monitoring reports (DMRs).
➢ Regulatory citations have been added to the permit.
➢ Outfall map has been updated.
➢ The facility address has been updated on the cover sheet and Supplement to Permit Cover Sheet.
➢ Language has been updated on the Supplement to Permit Cover Sheet.
➢ Parameter codes have been added to the effluent table in Section A. (1).
➢ Monitoring for pH, total copper, and total hardness have been added in Section A. (1) per the
current water treatment plant strategy.
➢ Monitoring for total iron has been removed as there is no longer a water quality standard for total
iron.
➢ The sample location for turbidity monitoring in Section A. (1) has been changed to the effluent
per the current water treatment plant strategy, and the associated footnote has been removed as
there is not a turbidity limit for this permit renewal.
➢ The footnote for total residual chlorine has been updated in Section A. (1).
➢ The language in Section A. (2) 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 bearing upon written request within thirty
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:lldeq.ne.govlabouttdivisionslwater-resourceslwater-resources-permitslwastewater-branchinpdes-wastewater-permits

Mayor Steve Hooper
NCO083071 Issued Permit
(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.
If you have any questions or need additional information, please do not hesitate to contact Brianna
Young of my staff at [phone].
Ainulpepper
Interim Director, Division of Water Resources
cc: NPDES Files
Central files
Asheville Regional Office
ec: WSS/Aquatic Toxicology Branch
Kyle Seaman, Project Engineer, McGill Associates[[e-mail]

Permit NCO083071
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
PDES
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 Robbinsville
is hereby authorized to discharge wastewater from a facility located at the
Robbinsville WTP
2457 Long Creek Road
Robbinsville
Graham County
to receiving waters designated as Rock Creek in the Little Tennessee 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 February 1, 2018.
This permit and authorization to discharge shall expire at midnight on November 30, 2022.
Signed this day January 12, 2018.
a Culpepper
Interim Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

Permit NC0083071 `
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 Robbinsville is hereby authorized to:
1. Continue to operate a Conventional Water Treatment Plant with a discharge of filter backwash
wastewater. This Water Treatment Plant currently has a design potable flowrate of 0.5 MGD and a
maximum, monthly average wastewater discharge of 0.0179 MGD. This facility is located 3.4 miles
South of the Town of Robbinsville at 2457 Long Creek Road in Graham County. Wastewater
treatment consists of:
• Alum sludge lagoon
• Decanting to receiving stream
2. Discharge from said treatment works at the location specified on the attached map into the Rock
Creek [Stream Segment: 2-190-4-4-(2)], a waterbody currently classified C-Trout, HQW waters in
subbasin 04-04-04 [HUC: 0601020401 ] in the Little Tennessee River Basin.
Page 2 of 7

Permit NCO083071
PART I.
A. (l.) 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 filter backwash from outfall 001. Such discharges shall be limited
and monitored' by the Permittee as specified below:
�/Q� • `i'sr-� „sl- _ t .
_ ik f.:.7l+=.l�eV-y _
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"fir-, F%y�• r t
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Flow 2 50050
2/Month
Instantaneous
Effluent
Total Suspended Solids C0530
30.0 m /L
45.0 m /L
2/Month
Grab
Effluent
H
6.0 s.u. to
9.0 s.u.
?/Month
Grab
Effluent
Total Residual Chlorine 3 50060
17 /L
2/Month
Grab
Effluent
Turbidity 00070
2/Month
Grab
Effluent
Total Aluminum 01105
Quarter'
Grab
Effluent
Total Copper 01042
Quarterly
Grab
Effluent
Hardness - Total as
00900
Monitor & Report
Quarterly
Grab
Effluent
[CaCO3 or (Ca + Mg)] 4
Hardness - Total as 00900
Monitor & Report
Po
Quarter' y
Grab
Upstream
p
[CaCO3 or (Ca + Mg)] 5
Chronic Toxicity 6 TGP3B
I Monitor & Report
I Quarterly
Grab
Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR
application system [see A. (3)].
2. Duration of the discharge shall be noted in log books and a Total daily discharge reported in the DMR.
3. Limit and monitor only if the facility adds chlorine or chlorine derivatives to water that is eventually
discharged. 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.
4. Effluent hardness sampling should be performed in conjunction with testing for hardness dependent metals
(cadmium, copper, lead, nickel, silver, and zinc).
5. The Permittee shall sample instream hardness, upstream of the facility's discharge. The sample shall be
representative of the hardness in the receiving stream. If the Permittee is a member of the Monitoring Coalition
Program, sampling for instream hardness may be waived as long as the Monitoring coalition agrees to sample
hardness at the nearest upstream location, at a minimum frequency of quarterly, and the Permittee has obtained
approval from DWR NPDES Permitting Unit that the upstream station being monitored by the Coalition is
representative of the receiving stream for this discharge. The Permittee is responsible for submitting instream
hardness test results with its permit renewal application package. If Coalition membership is cancelled or the
Coalition terminates instream hardness sampling at the approved station, the Permittee will immediately notify
the Division and resume sampling for instream hardness, upstream of its discharge.
6. Whole Effluent Toxicity shall be monitored by chronic toxicity (Ceriodaphnia) P/F at 10.0%. Tests shall be
conducted in February, May, August and November (Refer to Section A. (2.) for details).
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 NCO083071
A. (2.) CHRONIC TOXICITY PASS/FAIL MONITORING ONLY (QUARTERLY)
[I 5A NCAC 02B .0500 et seq.]
The permittee shall conduct guarterl 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 10.0 %. The testing
shall be performed as a Ceriodaphnia dubia 7-day pass/fail test. The tests will be performed during the
months of February, May, August, and November. 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
TGP3B. 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
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 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,
Page 4of7

Permit NCO083071
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.) 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.)
• Section D. (2.)
• Section D. (6.)
• Section E. (5.)
Signatory Requirements
Reporting
Records Retention
Monitoring Reports
1. Reportint 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.
Page 5 of 7

Permit NC0083071
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).
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: https://www.federalregister.gov/documents/2015/10/22/2015-24954/national-
pollutant-discharge-elimination-s s�pdes-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:
hlW:Hdeq.nc. &ov/about/divisions/water-resources/edmr
4. 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 II,
Section B. (I 1.)(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.
Page 6 of 7

Permit NC0083071
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:
hlW:Hdgg.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:
7 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 [Suaalements 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 7 of 7

Town of Robbinsville
Robbinsville WTP
NPDES Permit NCO083071
Receiving Stream: Rock Creek Stream Class: C; Tr, HQW
Stream Segment: 2-190-4-4-(2) Sub -Basin M 04-04-04
River Basin: Little Tennessee HUC: 0601020401
County: Graham
N
A
SCALE
2:24,000
Facility Locatio
sole not shown
USGS Quad: Robbinsville

DEQ/DWR
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES PERMIT NCO083071
Facility Information
Applicant/Facility Name:
Town of Robbinsville/Robbinsville WTP
Applicant Address:
PO Box 126, Robbinsville, NC 28771
Facilit Address:
2457 Long Creek Road, Robbinsville, NC 28771
Permitted Flow:
N/A
Type of Waste:
Settling basin and backwash wastewater from conventional WTP
Facility/Permit Status:
Class PC -I / Renewal
County:
Graham Count
Miscellaneous
Receiving Stream:
Rock Creek
Stream Classification:
C; Tr, H W
Subbasin:
04-04-04
Index No.:
2-190-4-4- 2
Drainage Area (mil):
0.66
HUC:
0601020401
Summer 7Q10 (cfs):
0.25
303(d) Listed?:
No; Previous
factsheet said
Yes statewide H
Winter 7Q 10 cfs :
-
Regional Office:
Asheville
30 2 cfs :
-
USGS d:
Robbinsville
Average Flow cfs :
-
Permit Writer:
Brianna Young
IWC % :
10.0%
Date:
12/18/17
BACKGROUND
The Town of Robbinsville operates a conventional WTP designed for 0.5 MGD. The facility
generated a maximum, monthly average wastewater discharge of 0.0179 MGD (previous 3
years) and discharge occurs several days a week 3 hours. Water sources are Long Creek, Burgin
Creek, and Rock Creek. The water from these creeks is stored in 2 MG reservoir before
treatment at the WTP. Based on the reported DMR flows from August 2014 through August
2017, the maximum monthly average wastewater discharge is 0.0179 MGD.
COMPLIANACE HISTORY
Numerous violations for TRC exceedances — all BPJ'd as < 50 ug/L. Two (2) TSS frequency
violations (8/2014 and 7/2017). Have passed all toxicity tests since November 2013.
PERMITTING STRATEGY
Reasonable Potential Analysis (RPA) — No data was available for parameters required to run an
RPA. Permit not recommended for NCG590000 transfer as there has been no history of
dissolved metals monitoring. Monitoring for Total Copper added per 2009 WTP strategy.
Reconsider for general permit at next renewal.
SUMMARY OF PROPOSED CHANGES
• eDMR language added to A(1) and as Section A(3)
• Regulatory citations added
• Outfall map updated
• Supplement to Permit Cover Sheet language updated per 2012 WTP guidance and
stream characteristics added
• Updated facility address on cover sheet and supplement to permit cover sheet per
renewal application
Fact Sheet
NPDES NCO083071
Page 1 of 2

• Parameter codes added in A(1)
• Monitoring added for pH and total copper as the permit file did not indicate why
monitoring had been excluded for these parameters and they are required per the 2009
WTP strategy
o Monitoring for fluoride and total zinc excluded as renewal application indicates
that they do not have a potential to be discharged
o Monitoring for ammonia nitrogen excluded as facility did not indicate use of
chloramines
o Monitoring for TN and TP excluded as facility discharges less than 0.05 MGD
and does not discharge into an NSW
• Monitoring for Total Iron removed because no WQS and all values < 1 mg/L (max =
0.56 mg/L) between February 2013 and August 2017
• Sampling for hardness added per Julie Grzyb's e-mail November 2016
• Turbidity monitoring changed to effluent per 2009 WTP strategy
• Turbidity footnote (stated limit) removed per 2012 WTP guidance — receiving stream is
not impaired for turbidity so no limit should be given
• Updated TRC footnote
• Updated language in A(2)
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: November 1, 2017
Permit Scheduled to Issue: December 25, 2017
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please
contact Brianna Young at [phone] or email [e-mail].
REGIONAL OFFICE COMMENTS (PER MHUL WILLIVIER EMAILS)
Email 10/23/17 - Currently I have no concerns about the renewal of Robbinsville's WTP Permit.
During my last inspection the ORC at the time stated they did dechlorinate with Calcium
thiosulfate. I do not believe it was mentioned in the current application, so I'll need to clarify
with the new ORC that they are still dechlorinating. Also, they did not list the new ORC on the
application, but they do have a designated ORC as of September. Back-up ORC will probably be
designated after December Wastewater exams are held.
Per e-mail 10/27/17 - I just talked to the ORC and he says they are still dechlorinating the water
before it goes to the lagoon. And the current ORC designation in BIMS is correct.
Per e-mail 10/27/17 - I do not see anything that needs to be changed or added. (regarding the
draft sent for review)
Per e-mail 11/28/17 - No additional comments for Robbinsville WTP Draft Permit
(NC0083071). I contacted the permittee for Westview Estates and informed him he could
request. the reuse language be removed from the permit if they wished, but I have not heard
anything further in regard to that section of the permit. If the request is made by the permittee,
the ARO would support the request for removal.
• DWR comment — No request or other comments received from permittee, condition is
remaining in the permit.
Fact Sheet
NPDES NCO083071
Page 2 of 2

Young, Brianna A
From: Willmer, Mikal
Sent: Tuesday, November 28, 2017 12:33 PM
To: Young, Brianna A; Heim, Tim
Subject: RE: Draft permits submitted to public notice
Hi Brianna,
No additional comments for Robbinsville WTP Draft Permit (NC0083071).
I contacted the permittee for Westview Estates and informed him he could request the reuse language be removed from
the permit if they wished, but I have not heard anything further in regard to that section of the permit. If the request is
made by the permittee, the ARO would support the request for removal.
Thanks!
Mika] Willmer
Environmental Specialist -Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ-Division of Water Resources
Office: 828-296-4686
Fax: [phone]
[e-mail]
2090 US Hwy. 70
Swa n na noa, NC 28778
t:= Nothing Compares,....
=- Email correspondence to and from this address;erhto.the
North Carolina Public Records Law and may be iiisclosed to third parties.
From: Young, Brianna A
Sent: Wednesday, November 01, 2017 10:07 AM- --
To: Heim, Tim <Tim.Heim @ncdenr.gov>; Willmer, Mikal <[e-mail]>
Subject: Draft permits submitted to public notice
Good morning Tim and Mikal,
Attached are the draft permits for Westview Estates W WTP (NC0087700) and Robbinsville WTP (NC0083071) that were
submitted to public notice this week. Please provide any additional comments by November 30".
Thanks,
Brianna

Brianna Young
Environmental Senior Specialist
Compliance and Expedited Permitting Unit
Division of Water Resources
Department of Environmental Quality
Office: 919-807-6333
Brianna.You ng(c)ncdenr.gov
Mailing address:
1617 Mail Service Center
Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed
to third parties.
7

NORTH CAROLINA
GRAHAM COUNTY
AFFIDAVIT OF PUBLICATION
Before the undersigned, Vla , a Notary Public of
Graham County and North Carolina, dul commissioned, qualified and authorized
by law to administer oaths, personally appeared, Lisa DeLoach, who, being duly
sworn, deposes and says: that she is the Typesetter of The Graham Star, engaged
in the publication of a newspaper known as The Graham Star, published, issued
and entered as periodical mail in the Town of Robbinsville, in Graham County,
in the State of North Carolina. That she is authorized to make this affidavit and
sworn statement: That the notice or other legal advertisement — a true copy of
which is attached hereto — was published in The Graham Star on the following
dates 11 J (1 j tan � h and that The Graham Star in
which such notice, paper, document or legal advertisement was published was,
at the time of each and every such publication, a newspaper meeting all of the
requirements and qualifications of Section 1-597 ofthe General Statutes ofNorth
Carolina and was a qualified newspaper within the meaning of Section 1-597 of
the General Sta utes of North Carolina.
This day of_, 2017.
ac�'_U�
Lisa DeLoach
Sworn to and subscribed before me this day of NOV, , 2017.
(Notary Public)
My commission expires
` PUBLIC NOTICE
Narth Carolina Environmental Management
Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notice of Intent to Issue a NPDES Wastewater Permit
The North Carolina Environmental Management Com-
mission proposes to issue a NPDES wastewater discharge
permit to the person(s) listed below. Written comments
regarding the proposed permit will be accepted until 30
days after the publish date of this notice. The Director
of the NC Division of Water Resources (DWR) may hold
a public hearing should there be a significant degree of
public interest. Please mail comments and/or information
_ requests to DWR at the above address. Interested persons
may visit the DWR at 512 N. Salisbury Street, Raleigh, NC
to review information on file. Additional information
on NPDES permits and this notice may be found on our
website: http://deq.nc.gov/about/divisions/water-re-
sources/water-resources-permits/wastewater-branch/
npdes-wastewater/public-notices,or by calling (919) 807-
6397. The Town of Robbinsville has requested renewal
of permit NCO083071 for Robbinsville WTP in Graham
County; this facility discharge is treated filter backwash
to Rock Creek in the LittleTennessee River Basin.

Young, Brianna A
From:
Willmer, Mika[
Sent:
Friday, October 27, 2017 1:38 PM
To:
Young, Brianna A
Cc:
Heim, Tim
Subject:
RE: Review of Robbinsville WTP (NC0083071)
Brianna,
I do not see anything that needs to be changed or added.
Thanks,
Mikal Willmer
Environmental Specialist -Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ-Division of Water Resources
Office: 828-296-4686
Fax: [phone]
[e-mail]
2090 US Hwy. 70
Swannanoa, NC 28778
0. -
-'Nothing Compares
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Young, Brianna A
Sent: Friday, October 27, 2017 10:30 AM
To: Willmer, Mikal <[e-mail]>
Cc: Heim, Tim <[e-mail]>
Subject: RE: Review of Robbinsville WTP (NC0083071)
Good morning Mikal and Tim,
Attached is the draft permit for the Robbinsville WTP (NC0083071). I will be submitting this permit to public notice COB
October 31". Please let me know if you have any immediate concerns with the draft prior to then, otherwise I will email
a signed PDF of the draft after submission to public notice.
Thank you,
Brianna
Brianna Young
Environmental Senior Specialist

Compliance and Expedited Permitting Unit
Division of Water Resources
Department of Environmental Quality
Office: 919-807-6333
Brianna.Young(c ncdenr.gov
Mailing address:
1617 Mail Service Center
Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed
to third parties.
From: Willmer, Mikal
Sent: Wednesday, October 25, 2017 1:40 PM
To: Young, Brianna A <[e-mail]>
Cc: Heim, Tim <[e-mail]>
Subject: RE: Review of Robbinsville WTP (NC0083071)
Brianna,
I just talked to the ORC and he says they are still dechlorinating the water before it goes to the lagoon. And the current
ORC designation in BIMS is correct.
Mika] Willmer
Environmental Specialist -Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ-Division of Water Resources
Office: 828-296-4686
Fax: [phone]
[e-mail]
2090 US Hwy. 70
Swannanoa, NC 28778
-Nothing Compares
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Young, Brianna A
Sent: Monday, October 23, 2017 4:25 PM
To: Willmer, Mika[ <[e-mail]>
Cc: Heim, Tim <Tim.Heim @ncdenr.eov>
Subject: RE: Review of Robbinsville WTP (NC0083071)
Thank you for this information, Mikal! Please let me know about the dechlorination once you find out. Per BIMS, the
ORC is listed as Everette Williams. Please let me know if this is not the correct ORC so that that may be addressed. I am

aiming to submit this permit to public notice on November 11, and will try to send a copy of the draft a few days in
advance of the submission to public notice.
Brianna Young
Environmental Senior Specialist
Compliance and Expedited Permitting Unit
Division of Water Resources
Department of Environmental Quality
Office: 919-807-6333
Bria nna.Youno(a7ncdenr.gov
Mailing address:
1617 Mail Service Center
Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed
to third parties.
From: Willmer, Mikal
Sent: Monday, October 23, 2017 10:50 AM
To: Young, Brianna A <[e-mail]>
Cc: Heim, Tim <[e-mail]>
Subject: RE: Review of Robbinsville WTP (NC0083071)
Good Morning Brianna,
Currently I have no concerns about the renewal of Robbinsville's WTP Permit. During my last inspection the ORC at the
time stated they did dechlorinate with Calcium thiosulfate. I do not believe it was mentioned in the current application,
so I'll need to clarify with the new ORC that they are still dechlorinating. Also, they did not list the new ORC on the
application, but they do have a designated ORC as of September. Back-up ORC will probably be designated after
December Wastewater exams are held.
Thanks!
Mikal W!Ilmer
Environmental Specialist -Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ-Division of Water Resources
Office: 828-296-4686
Fax: [phone]
Mikal.willmer@ ncdenr.Rov
2090 US Hwy. 70
Swannanoa, NC 28778
Lc".
Nothing Compares._
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.

From: Wiggs, Linda
Sent: Friday, October 20, 2017 5:30 PM
To: Davidson, Landon <[e-mail]>
Cc: Willmer, Mikal <[e-mail]>; Heim, Tim <[e-mail]>
Subject: RE: Review of Robbinsville WTP (NC0083071)
Landon, I am ccing Mikal as Graham is her county and Tim as he has probably already (or will) engaged Mikal in this
renewal.
Environmental Senior Specialist — Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
828 296 4500 office
828 299 7043 fax
Email: linda.wiags Zi)ncdenr.gov
2090 U.S. Hwy. 70
Swannanoa, N.C. 28778
M.
Nothing Compares
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Davidson, Landon
Sent: Friday, October 20, 2017 5:05 PM
To: Wiggs, Linda <[e-mail]>
Subject: RE: Review of Robbinsville WTP (NC0083071)
G. Landon Davidson, P.G.
Regional Supervisor— Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
828 296 4680 office
828 230 4057 mobile
Landon.Davidson(a)ncdenr.gov
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Young, Brianna A
Sent: Friday, October 20, 2017 12:35 PM

To: Heim, Tim <[e-mail]>; Davidson, Landon <landon.davidson([e-mail]>
Subject: Review of Robbinsville WTP (NC0083071)
Good afternoon,
have begun reviewing the renewal for the Robbinsville WTP (NC0083071). Please let me know if you have any
comments or concerns about this renewal.
Thank you,
Brianna Young
Environmental Senior Specialist
Compliance and Expedited Permitting Unit
Division of Water Resources
Department of Environmental Quality
Office: 919-807-6333
Bria n na. You no (a) ncden r.gov
Mailing address:
1617 Mail Service Center
Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed
to third parties.

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
REQUIRED DATA ENTRY
Table 1. Proiect Information
0CHECK IF HQW OR ORIN WQS
Facility Name
Robbinsville WTP
PC-1
WWTP/WTP Class
NPDES Permit
NC0083071
Oulfall
001
Flow, Ow (MGD)
0.018
Receiving Stream
Rock Creek
HUC Number
0601020401
Stream Class
C; Tr, HOW
0.25
O4pply WS Hardness WQC
7Q10s (cfs)
7Q10w (i
—
30Q2 (cfs)
CIA (cfs)
—�
0.21
7Q70s (cfs)
Effluent Hardness
25 mg/L (Avg)
Upstream Hardness
25 mg/L (Avg)
_ ___________
Combined Hardness Chronic
________ _
25 mg _ _ _ _ _ IL
Combined Hardness Acute
25 mg/L
--------------------
Data Sources)
❑CHECK TO APPLY MODEL
Par01
Par02
Par03
Par04
Parts
Par06111111
Pahl
Parts
Paris
Par10
Par11
Par12
Par13
Par14
Par15
Parts
Par17
Paris
Pads
Par20
Par21
Par22
Par23
Par24
Table 2. Parameters of Concern
Name Wos type Chronic Modire, Acute PQL Units
Arsenic
Aquaaic ure
C
150
FW
340
ug/L
Arsenic
Human Health
Water Supply
C
10
HHANS
N/A
ug/L
Beryllium
Aquatic Life
NO
6.5
FW
65
ug/L
Cadmium
Aquatic Life
NO
0.5899
FW
3.2396
uglL
Chlorides
Aquatic Life
NO
230
FW
ri
11, Chlorinated Phenolic Compounds
Water Supply
NO
1
A
ug/L
Total Phenolic Compounds
Aquatic Life
NO
300
A
ug/L
Chromium 111
Aquatic Life
NO
117.7325
FW
905.0818
uglL
Chromium VI
Aquatic Life
NO
11
FW
16
pg/L
Chromium, Total
Aquatic Life
NO
N/A
FW
N/A
jug/L.
Copper
Aquatic Life
NO
7.8806
FW
10.4720
ug/L
Cyanide
Aquatic Life
NO
5
FW
22
10
ug/L
Fluoride
Aquatic Life
NO
1,800
FW
ug/L
Lead
Aquatic Life
NO
2.9416
FW
1 75.4871
uglL
Mercury
Aquatic Life
NO
12
FW
0.5
ng/L
Molybdenum
Human Health
NO
2000
HH
ug/L
Nickel
Aquatic Life
NC
37.2313
FW
335.2087
pg/L
Nickel
Water Supply
NO
25.0000
WS
N/A
pg/L
Selenium
Aquatic Life
NO
5
FW
56
ug/L
Silver
Aquatic Life
NO
0.06
FW
0.2964
ug/L
Zinc
Aquatic Life
NO
126.7335
FW
125.7052
uglL
Copy NC0083071 Final FW RPA w_upstream al data column_diss to totalmetals_nodetects_limiteddefaults 2016 822, input
10/20/2017

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REASONABLE POTENTIAL ANALYSIS
Use-PASTE
SpECIGL
12
Effluent Hardness vawM.Irnies' n d.WY" Upstream Hardness
. Mazimum tlata
points = 58
Date Data BDL=112DL
25 25
Results
Std Dev. N/A
Mean
25.0000
C.V.
0.0000
n
1
10th Per value
25.00 ni
Average Value
25.00 ri
Max. Value
25.00 ri
Values•• then -COPY-
. Maalmum date
Points = 0
Date Data BDL=112DL Results I
25 25 Ste! Dev. N/A
Mean 25.0000
C.V. 0.0000
n 1
10th Per value 25.00 mg/L
Average Value 25.00 mg/L
Max. Value 25.00 mg/L
Copy NCO083071 Final PW RPA w_upstream avg data column_diss to totalmetals_nodetects_limiteddefaults 2016_822, data
-1- 10/20/2017

Rohainsville WTP
NCO083071
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Qw(MGD)= 0.02
IQIOS(cfs)= 0.21
7QIOS (cfs) = 0.25
7QIOW(cfs)= NO 7010w DATA
30Q2 (cfs) = NO 3002 DATA
Avg. Stream Flow, QA (cfs) = NO CA DATA
Receiving Stream: Rock Creek HUC 0601020401
WWTP/WTP Class: PC-1
IWC% @ IQIOS = 11.67006667
RVC% @ 7QIOS = 9.989378747
IWC%@7QIOW= NIA
fWC%@30Q2= NIA
IW%C@QA= NIA
Stream Class: C; Tr, HQW
Outfal 1001
Qw = 0.0179 MGD
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS HOW OR ORW
COMBINED HARDNESS (mPJL)
Acute = 25 mg/L
Chronic = 25 mg/L
PARAMETER
NC STANDARDS OR EPA CRITERIA
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
(1)
J
Q
a
F
Chronic Applied
Acute
❑ tt Det. Max Pred Cw Allowable Cw
Standard
Copy NCO083071 Final FW RPA w_upstream avg data column_diss to totalmetals_nodetects_Ilmiteddefaults 2016_822, rips
Page 1 of 1 10/20/2017