NC0049409_Draft Permit_20201217

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
Mayor Gavin Brown
City of Waynesville
PO Box 100
Waynesville, NC 28786-0100
Dear Mayor Brown:
NORTH CAROLINA
Environmental Quality
December 15, 2020
Subject: Draft NPDES Permit NCO049409
Waynesville WTP
Grade I Physical Chemical WPCS
Haywood County
The Division has reviewed your request to renew the subject permit. Please review this draft carefully to
ensure your thorough understanding of the information, conditions, and requirements it contains.
The draft permit includes the following significant changes from the existing permit:
1. Language has been updated in Section A. (1) and Section A. (3) to require electronic submission
of effluent data. Federal regulations require electronic submittal of all discharge monitoring
reports (DMRs).
2. Outfall map has been updated.
3. Language on the Supplement to Permit Cover Sheet has been updated.
4. The components list has been added on the Supplement to Permit Cover Sheet.
5. The facility grade and units of measure have been added in Section A. (1).
6. The "Weekly Average" column in Section a. (1) has been removed as there is no weekly
monitoring required.
7. Total suspended solids and effluent hardness sample types have been changed from composite
samples to grab samples per current water treatment plant guidance.
8. Duration of discharge has been added in Section A. (1) per current water treatment plant
guidance.
9. Monitoring for turbidity has been reduced to monthly in Section A. (1) per current water
treatment plant guidance.
10. Monitoring for total copper has been removed in Section A. (1) per a reasonable potential
analysis.
11. Monitoring for total iron and total manganese has been removed in Section A. (1) as there are no
longer water quality standards.
12. Optional monitoring and associated footnotes for total fluoride, total zinc, and ammonia nitrogen
have been removed in Section A. (1) as the permit renewal application stated these do not have
the potential to be discharged.
13. Instream waste concentration (IWC) has been updated in Sections A. (1) and A. (2) based on a
waste load allocation and positive receiving stream flow.
D E Ql� North Carolina Department of Environmental Quality I Division of Water Resources
5 _ 512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
NORTH CAROLINA
oaPartmaocofE,Wm m-tal0-ri /� 919.707.9000

14. Updated the footnotes in Section A. (1).
15. Toxicity language in Section A. (2) has been updated.
The EPA approved NC 2015-2019 Water Quality Standard (WQS) Triennial Review includes new
chronic and acute dissolved metal standards for most metals. Further, the freshwater standards for
several metals are expressed as the dissolved form of the metals, and seven metals have hardness -
dependent equations. As a result, the NPDES Permitting Unit will need site -specific effluent hardness
data and instream hardness data, upstream of the discharge, for each facility monitoring these metals in
order to calculate permit limitations. Effluent hardness and instream hardness sampling, upstream of the
discharge, have been added to the permit at a monitoring frequency of quarterly. See Section A. (1)
Effluent Limitations and Monitoring Requirements.
The NPDES standard conditions (Parts II, III, and IV) that are a part of the permit are not included in
this draft document (cover, map, and Part I). The conditions are the same as in your current permit
except that agency and division names have been updated. The latest version is available
at htt2s://bit.ly/2BZ4xxx and can be viewed online or downloaded as a PDF file.
With this notification, the Division will solicit public comment on this draft permit by publishing a
notice in newspapers having circulation in the general Haywood County area, per EPA requirements.
Please provide your comments, if any, to me no later than 30 days after receiving this draft
permit.
Following the 30-day public comment period, the Division will review all pertinent comments and take
appropriate action prior to issuing a final permit. If you have questions concerning the draft, please
contact me at 919-707-3619, or via e-mail [[e-mail]].
Sincerely,
Brianna Young
/NPDES Compliance arfdExpedited Permitting Unit
cc: NPDES Files (Laserfiche)
Asheville Regional Office
Wastewater Operator Certification Group
WSS/Aquatic Toxicology Branch
Preston Gregg, Town of Waynesville

Permit NCO049409
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 Waynesville
is hereby authorized to discharge wastewater from a facility located at the
Waynesville Water Treatment Plant (WTP)
341 Rocky Branch Road
Haywood County
to receiving waters designated as Allen Creek in the French Broad 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
This permit and authorization to discharge shall expire at midnight on January 31, 2026.
Signed this day
S. Daniel Smith
Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8

Permit NCO049409
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this 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 described herein.
The Town of Waynesville
is hereby authorized to:
Continue to operate a conventional water treatment plant with a discharge of wastewaters from filter
backwash and sedimentation wash water. This water treatment plant currently has a design potable
flowrate of 8.0 MGD and a maximum, monthly average wastewater discharge of 0.147 MGD. This
facility is located at the Waynesville WTP, 341 Rocky Branch Road, south of Waynesville in
Haywood County. Water and wastewater treatment consists o£
• Rapid mix
• Flocculation
• Sedimentation
• Filtration with pre and post disinfection and pH adjustment
• Sludge settling pond
• Chemical usage consists o£
o Aluminum sulfate
o Non -zinc orthophosphate
o Sodium hydroxide
o Hydrofluorosilicic acid
o Chlorine
2. Discharge filter -backwash wastewater from said treatment works via Outfall 001 at a location
specified on the attached map into Allen Creek [Stream segment: 5-16-7-(8.5)], a waterbody
currently classified C; Trout within subbasin 04-03-05 [HUC: 060101060201 ] of the French Broad
River basin.
Page 2 of 8

Permit NCO049409
PART I.
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B.0400 et seq., 15A NCAC 02B.0500 et seq.]
Grade I Physical Chemical WPCS [15A NCAC 08G .0302]
During the period beginning on the effective date of the permit and lasting until_expiration, the Permittee
is authorized to discharge from Outfall 001. Such discharges shall be limited and monitored' by the
Permittee as specified below:
EFFLUENT CHARACTERISTICS
Parameter Code
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow (MGD) 2 50050
2/Month
Instantaneous
Influent/
Effluent
Duration of Discharge (Hours) 81381
2/Month
Instantaneous
Effluent
Total Suspended Solids 00530
30.0 mg/L
45.0 mg/L
2/Month
Grab
Effluent
pH 00400
Not < 6.0 s.u. nor > 9.0 s.u.
2/Month
Grab
Effluent
Total Residual Chlorine 3 50060
28 lag/L
2/Month
Grab
Effluent
Turbidity (NTU) 00070
Monthly
Grab
Effluent
Total Aluminum (lag/L) 01105
Quarterly
Grab
Effluent
Total Fluoride 00951
Quarterly
Grab
Effluent
Total Nitrogen (mg/L) 00600
Quarterly
Grab
Effluent
Total Phosphorus (mg/L) 00665
Quarterly
Grab
Effluent
Hardness — Total as [CaCO3 or 00900
(Ca + Mg)] (mg/L)
Monitor & Report
Quarterly
Grab
Effluent
Hardness — Total as [CaCO3 or 00900
(Ca + Mg)] (mg/L)
Monitor & Report
Quarterly
Grab
Upstream
Whole Effluent Toxicity 6 TGP38
Monitor & Report
Quarterly
Grab
Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR
application system [see Section A. (3)].
2. Flow shall be reported as the sum of two effluents.
3. The Division shall consider all effluent TRC values reported below 50 µg/L to be compliant with this 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
(copper 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
Page 3 of 8

Permit NCO049409
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. Quarterly pass/fail chronic WET Testing using Ceriodaphnia dubia at 4.82% effluent during the months of
March, June, September, and December [see Section A. (2)].
The Permittee shall discharge no floating solids or foam.
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Permit NCO049409
A. (2) CHRONIC TOXICITY PASS/FAIL MONITORING (QUARTERLY)
[15A NCAC 02B .0500 et seq.]
The permittee shall conduct quarterly 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 4.82 %. The testing
shall be performed as a Ceriodaphnia dubia 7-day pass/fail test. The tests will be performed during the
months of March, June, September, and December. 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 electronically using
the Division's eDMR system for the month in which it was performed, using the parameter code
TGP311. Additionally, DWR Form AT -I (original) is to be sent to the following address:
North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
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 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.
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Permit NCO049409
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) ELECTRONIC REPORTING - 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
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reportiniz 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. The eDMR system may be
accessed at: https:Hdeq.nc.gov/about/divisions/water-resources/edmr.
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.
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Permit NC0049409
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), 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.federalre_ig ster.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
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:
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Permit NC0049409
h!Ltp:Hdeq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)l
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (I 1.)(a) or by a duly authorized representative of that person as described in Part II,
Section B. (I 1.)(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:
"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.)]
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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