NC0044784_Draft Permit_20201222

ROY COOPER
� ',
Governor � ,.1•
MICHAEL S.REGAN
Secretary �°"""
S.DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
December 22, 2020
City of Brevard
Attn: Jim Fatland, City Manager
95 W Main St
Brevard,NC 28712
Subject: Draft NPDES Permit NC0044784
Catheys Creek WTP
Grade I Physical Chemical WPCS
Transylvania County
Dear Mr.Fatland:
The Division has reviewed your request to renew the subject permit. Please review this draft carefully to ensure a
thorough understanding of the information,conditions,and requirements it contains.We have also received your
request that the requirement for continuous flow monitoring be removed from the permit,however after reviewing
the past three years of flow data,the facility's maximum,monthly average wastewater discharge exceeds 50,000
GPD.Therefore,continuous flow monitoring will continue to be required,per.current water treatment plant
strategy.
The draft permit includes the following significant changes from the existing permit:
> Fluoride has been removed from the Effluent table in Section A.(1)as it is not used in the treatment
process and the permit renewal application indicates that Fluoride does not have the potential to be
discharged.
> Manganese has been removed from the Effluent table in Section A.(1)as there are no longer water
quality standards for this parameter.
> The language in Section A.(2)and the effluent concentration for Whole Effluent Toxicity testing has
been updated to 1.2%based on the flow of the receiving stream and maximum,monthly average
discharge,as per current water treatment plant strategy.
> Section A. (3)and Footnote#1 in Section A.(1)have been updated regarding electronic submission of
effluent data. Federal regulations require electronic submittal of all discharge monitoring reports
(DMRs).
> The Permit Re-Opener—Whole Effluent Toxicity(WET)special condition has been removed as the
facility has passed over 75%of WET tests in the past three years.
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 1).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 https://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 Transylvania County area,per EPA requirements.Please provide
your comments,if any,to me no later than 30 days after receiving this draft permit.
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Page 2 of 2
Draft Permit NC0044784
Catheys Creek WTP
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
the telephone number listed at the bottom of this page,or via e-mail [[e-mail]].
Sincerely,
Sydney Carpenter
NPDES Compliance and Expedited Permitting Unit
ec: NPDES File[Laserfiche]
Asheville Regional Office [Laserfiche]
Operator Certification Program
Aquatic Toxicology Unit

NPDES Permit NC0044784
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
City of Brevard
is hereby authorized to discharge wastewater from a facility located at the
Catheys Creek Water Treatment Plant (WTP)
1161 Catheys Creek Road
Brevard
Transylvania County
to receiving waters designated as Catheys 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 September 30, 2025.
Signed this day
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

NPDES Permit NC0044784
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.
City of Brevard
is hereby authorized to:
1. Continue to operate a conventional water treatment plant with a discharge of wastewaters from media filter
backwash and sedimentation basins with a design potable flowrate of 2.6 MGD and a maximum,monthly
average wastewater discharge of 0.062 MGD.This facility is located at 1161 Catheys Creek Road,Brevard
in Transylvania County.Water and wastewater treatment includes the following components:
• Metered raw water intake vault
• Flash mixer
• Flocculation basins
• Filters
• Settling basins a ,
• Clear well
• Sludge thickener tank
• Drying beds
• Chemical usage consists of:
o Poly-aluminum chloride
o Sodium hypochlorite
o Sodium hydroxide
o Calcium thiosulfate
o Sodium bicarbonate
o Sodium ortho/polyphosphate
2. Discharge from said treatment works via Outfall 001 at the location specified on the attached map
into Catheys Creek, currently classified C; Tr; HQW waters [Stream Index: 6-16-(9.5)] located
within sub-basin 04-03-01[HUC: 0601010501] of the French Broad River Basin.
Page 2 of 7

NPDES Permit NC0044784
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade I Physical Chemical WPCS [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 filter backwash from outfall 001. Such discharges shall be limited,
monitored and reported' by the Permittee as specified below:
EFFLUENT CHARACTERISTIC LIMITS MONITORING REQUIREMENTSI
[eDMR Code] Monthly Daily Measurement Sample Sample
Average Maximum Frequency Type Location
Flow(MGD) [50050] Continuous Recording Effluent
Total Suspended Solids(mg/L) [C0530] 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent
pH(su) [00400] Not<6.0 or>9.0 2/Month Grab Effluent
standard units
Total Residual Chlorine 2(pg/L) [50060] 28 Ng/L2 2/Month Grab Effluent
Turbidity (NTU) [00070] Monitor&Report Monthly Grab Effluent
Total Aluminum(pg/L) [01105] Monitor&Report Quarterly Grab Effluent
Chronic WET Testing 3 [TGP3B] Monitor&Report Quarterly Grab Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see
Section A. (3)].
2. 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.
3. Chronic Toxicity(Ceriodaphnia dubia) 7-day pass/fail test at 1.2%in January,April,July and October[see
Section A. (2)].
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

NPDES Permit NC0044784
A. (2.) CHRONIC TOXICITY 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 1.2%. The testing
shall be performed as a Ceriodaphnia dubia 7-day pass/fail test. 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.
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
TGP3B. Additionally, DWR Form AT-1 (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.
Page 4 of 7

NPDES Permit NC0044784
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 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
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting Requirements [Supersedes Section D.(2.) and Section E.(5.)(a)1
The permittee shall report discharge monitoring data electronically using the NC DWR's
Electronic Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. The eDMR system may be
accessed at: https://deq.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.
Page5of7

NPDES Permit NC0044784
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
�' ep
• 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-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.
Page 6 of 7

NPDES Permit NC0044784
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)]
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:
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. (6.11
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

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Cathey's Creek WTP Location '{ '•��as4+ '"
1161 Cathey's Creek Road, Brevard 28712 Scale 1:24,000 4�64h�k
Receiving Stream: Cathey's Creek stream Class: C;Tr,HQW
Stream Segment: 6-16-(9.5) Sub-Basin: 04-03-01
Drainage Basin: French Broad Huc: 060101050104 NPDES Pennit NC0044784
Latitude: 35°12'43" Longitude: 82°47'00" NOrth
USGS Quad: Rosman,NC Transylvania County