NC0088897_Draft Permit_20181219

..,., ROY COOPER
E Governo,
1 ! v
%' n � MICHAEL S. REGAN
J : y' `• 'r Sec,etmy
4 q
At
.�. LINDA CULPEPPER
t a 9 s
- ' Intel mi Du ector
NORTH CAROLINA
Environmental Quality
December 19,2018
Mr. John Cater
City Manager
P.O.Box 1132
King,N.C. 27021-1132
Subject: DRAFT NPDES PERMIT NC0088897
City of King WTP
Grade 1 Physical-Chemical WPCS [15A NCAC 08G .0306]
Forsyth County
Dear Mr. Cater:
Enclosed with this letter is a copy of the draft permit for your facility. Please review the draft very
carefully to ensure thorough understanding of the conditions and requirements it contains. Your permit
is among several in the Yadkin-Pee Dee River Basin that the Division has targeted for expedited renewal.
This draft contains no major changes from the existing permit:
• Footnote 3 in section A. (1.) was removed, as concurrent WET sampling is no longer
required.
• Total Iron monitoring is no longer required. See Section A.(1.) Effluent Limitations and
Monitoring Requirements.
• The monitoring frequency for Turbidity(eDMR code 00070) is reduced to monthly.
• The NC 2007-2014 Water Quality Standard (WQS) Triennial Review was approved by the
NC Environmental Management Committee(EMC) on November 13, 2014. The US EPA
subsequently approved the WQS revisions on April 6, 2016 with some exceptions. The NC
Division of Water Resources NPDES Permitting Unit is required to implement the new
dissolved metal standards in all permits public noticed after April 6, 2016.
The new standards for most metals include acute standards. 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,
has been added to this permit at a monitoring frequency of quarterly. See Section A.(1.)
Effluent Limitations and Monitoring Requirements, and Footnotes 4 and 5.
• HUC and stream index number were added to the outfall description(page 2).
• Regulatory citations were added as necessary.
GD QV
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-707-9125

• Section A. (3.)was updated to be current.
With this notification,the Division will solicit public comment on this draft permit by publishing a notice
in newspapers having circulation in the general Forsyth 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 via email at [[e-mail]] or call 919-707-9125.
Sincerely,
Emily DelDuco
Environmental Specialist
NPDES Program
cc: NPDES files
ec: Scott Barrow—City of King
Jeff Bryan—DWR/Public Water Supply
Cindy Moore—Aquatic Toxicology Branch

NPDES Permit NC0088897
Grade 1 Physical Chemical WPCS [15ANCAC 08G .0306]
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDERv THE
f ,
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions of North Carolina General Statute143-215.1, other lawful standards
and regulations promulgated and adopted by/thy North Carolina\Environmental Management
Commission, and the Federal Water Pollution ControlAct, as amended, the
\
?)^
City of 11i g s.\
is hereby authorized to discharge treated wastewatefrom a facility known as
ki✓,
CityofNKng Water'Treatment,Plait (WTP)
6949 Dot naha Road, Tobaccoville
Yforsyth,,County
,a a ✓
to receiving`waters designated-as,Old Richmond Creek, within the Yadkin-Pee Dee River Basin, in
accordance with'effluent limitations, monitoring requirements, and other applicable conditions set forth
in Parts I, II, III;andvIV hereof. \ -- A
y
The permit shall becomeeffectivei .1 2019.
This permit and the authorization t discharge shall expire at midnight on October 31, 2023.
Signed this day 2019.
Linda Culpepper,Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

NPDES Permit NC0088897
Grade 1 Physical Chemical WPCS [15A NCAC 08G .0306]
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 City of Kmg
by r W
is hereby authorized to: 4y"'`' w ah
nr ,.,,., e°ry
1. Continue to operate a conventional technology Ater treatment plant [coa' nation, flocculation,
sedimentation, and filtration] wi discharge of was bwater from media filter backwash and
sedimentation basins with a design potable flowrate"'OO MGD and a maximum,monthly
average wastewater discharge of 0483'MGD, This fadilajs located at the City of King Water
Treatment Plant(WTP) (6949 Donnaha Road 'Tobaccovill�e"in Forsyth County,with water and
wastewater treatment,that � `"includes the�following coinponents•'
• three (3) clea�yvells [0.13°5(MG, 0.235,MG aiid 1.0 MG]Y
• high service pump station , ,
• generator ' ' °��
• chemical'storage tanks'. te!a„,,, '`v<' \
• ./a dee nt sludge;Bolding tank [0.300MG];,;,, `"
• =wastewater pumping '
• filter loch press "'7''' ., y"„
• dechlorination equipmentv; ,,
- ' v
2. discharge from said treatment works via Outfall 001 at a location specified on the attached
map, into Old Richmorid':C'reek [Stream Segment 12-79; HUC 030401011007], currently a
Class WS-IV waterbody within Subbasin 03-07-02 of the Yadkin-Pee Dee River Basin.
Page 2 of 7

NPDES Permit NC0088897
Grade 1 Physical Chemical WPCS [15A NCAC 08G .0306]
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B.0400 et seq., 02B.0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration,the Permittee is
authorized to discharge filter backwash via Outfall 001. Such discharges shall be limited and monitored'by the
Permittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS 1
CHARACTERISTIC Monthly Daily Measurement Sample Sample
[EDMR CODES] Average Maximum Frequency Type Location
Flow(MGD) 50050 ,, ; /� ''-➢Continuous Recording Effluent
Total Suspended Solids(mg/L) C0530 30.0 mg/L /45.0 ing/L 2/mbnth Grab Effluent
Turbidity(NTU) 00070 ( / Monthly, ' Grab Effluent
Total Residual Chlorine z(µg/L) 50060 ' , 8 µgo,a „,„ 2/month \ Grab Effluent
Not<6.0or.>9.0 ' % , ',
pH(su) 00400/ standard units°°'�� // 2/month x=., ,Grab Effluent
Total Aluminum (mg/L) 01105\ % t �`°v Quarterly Grab Effluent
Total Fluoride (mg/L) 00951 `\ \ `--.,, "', vvQuarterly Grab Effluent
Total Zinc (mg/L) 01092 \ % �`"VQuarterly Grab Effluent
Total Copper (mg/L) / l'/ 01042 1 ,} / Quarterly Grab Effluent
Total Phosphorous(TP) (mg/L)� C06653"' J ',..-Quarterly Grab Effluent
Total Nitrogen(TN)(mg/L) \ ` ,. C0600 [ \ '\ Quarterly Grab Effluent
Chronic WET Testing \k" :1T,GP3B - ' j,, \. Quarterly Grab Effluent
Hardness— otal asIChCO3 or"Ca ` ` Composite or
+Mg)]4 / \ 009`00'. Monitor&Report Quarterly Grab Effluent
Hardness—'Total,as[CaCO3 or Cap ',
+Mg)] s 00900 , Monitor&Report Quarterly Grab Upstream
Footnotes: \ ` �� ' N
1. The permittee shallfsubmit discharge monitoring reports electronically using NC DWR's eDMR application system. See
Special Condition A. (3.).,\ j"
2. The Division shall consider TRC effluent values reported below 50 µg/L to be compliant with the permit.
However,the Permittee shall'continue to/record and submit all values reported by a North Carolina-certified
laboratory method(including fieldyerrtified),even if these values fall below 50µg/L.
3. Whole Effluent Toxicity(WET)testing-testing of Ceriodaphnia dubia shall be performed as 7-day pass/fail test at 59%
effluent concentration,during January,April,July and October[See A. (2.)].
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.
Page 3 of 7

NPDES Permit NC0088897
Grade 1 Physical Chemical WPCS [15A NCAC 08G .0306]
Comments:
1. Samples shall be taken at the outfall but prior to mixing with the receiving waters.
2.There shall be no discharge of floating solids or foam in other than trace amounts.
A. (2.) CHRONIC TOXICITY PASS/FAIL MONITORING (QUARTERLY)
[15A NCAC 02B.0200]
The permittee shall conduct quarterly chronic toxicity tests using tetprocedures outlined in the"North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure,"R y; ed December 2010, or subsequent
versions. ;6;.
The effluent concentration defined as treatment two in the proceduredhcument is 59%. The testing shall
be performed as a Ceriodaphnia dubia 7-day pass/fail test. The tests Abe performed during the
months of January,April,July and October. rTbe e months signify the% t month of each three
month toxicity testing quarter assigned to the facility Effluent sampling for4is,,testing must be
obtained during representative effluent discharge and`°sliall be perf ed at the` 'Wl ES permitted final
effluent discharge below all treatment processes. fF7'%„✓
g p 'Y ;;a,�.
All toxicity testing results required as parrO thi` permit condit on will be entered on the Effluent
Discharge Monitoring Form(MR-1) for thf onth i r Bich it wa1;pe formed, using the parameter code
TGP3B. Additionally,DWR,E.orm AT-1 (ori'gi01)is t i ellsent to 1109,1lowing address:
/Attention::North Carolina4°°i ision oUWnter Resources
Env ironmenta.1Sbiences Section
1621 Mail Service Center
�`Ralei�gli N.C. 276J9-1621
� /c,,/;;1,,„�, /lam�<i,
Completed l aquForm
atic ToxicifOest Fosashall be filedvith the Environmental Sciences Section no later
than 30 days,after the end of tliereporting period for which the report is made.
Test data shall be complete and accurate and:include all supporting chemical/physical measurements
performed in assocat¢n with the toxicity tests, as well as all dose/response data. Total residual chlorine
of the effluent toxicity sample mustb4measured and reported if chlorine is employed for disinfection of
the waste stream. /°%"%
401
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
Environmental 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.
Page 4 of 7

NPDES Permit NC0088897
Grade 1 Physical Chemical WPCS [15A NCAC 08G .0306]
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.
If the Permittee monitors any pollutant more frequently than required by this permit, the results of such
monitoring shall be included in the calculation&reporting of the data submitted on the DMR& all AT
Forms submitted.
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 indial monitoring.
44 ,
A. (3.) ELECTRONIC REPORTING OF/DISCHARGE MONITORING REPORTS
[G.S. 143-215.1(B)]
Federal regulations require electronic submittal of all'discharge onitoring reports (DMRs) and program
reports. The final NPDES Electronic Reporting Rule was adoptand became effective on December
21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit(Standard ConditionsforNPDESPer`mits):
• Section B. (11.); ,'Signatory Requirements'
• Section D. (2.) , Reporting t ,
• 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. 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
Page 5 of 7

NPDES Permit NC0088897
Grade 1 Physical Chemical WPCS [15A NCAC 08G .0306]
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband
access, then a temporary waiver from the NPDES electronic reporting requirements may be granted
and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or
alternative forms approved by the Director. Duplicate signed copies shall be submitted to the
mailing address above. See"How to Request a Waiver from Electronic Reporting" section below.
Regardless of the submission method, the first DMR is due on the last day of the month following
the issuance of the permit or in the case of a new facility, on the,last day of the month following the
commencement of discharge.
Starting on December 21, 2020, the permittee must electronically report the following compliance
monitoring data and reports, when applicable: . '\' . '
• Sewer Overflow/Bypass Event Reports; -
• Pretreatment Program Annual Reports; arid
• Clean Water Act(CWA) Section 316(b) Annual`Reports.,--
The permittee may seek an electronic reporting waiver from the Division(see The to Request a
Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40,CF1.122.41(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.
\ 1 i
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 t'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 reportingltool will be available as well. Information on EPA's NPDES
Electronic Reporting Rule is found at: http://www2.epa.gov/compliance/final-national-pollutant-
discharge-elimination-system-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
Page 6 of 7

NPDES Permit NC0088897
Grade 1 Physical Chemical WPCS [15A NCAC 08G .0306]
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.)
Ste]. `\
All eDMRs submitted to the permit issuing authority,shall be signed b'y,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 accoidance�with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the information,
the information submitted is, to,'the best of my knowledge and belief true, accurate, and complete. I
am aware that there are significant penalties for submitting false information, including the
possibility of fines and imprisonment for knowing violations."
' 5. Records Retention [Supplements Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of at least 3 years from the
date of the report. This period maybe extended by request of the Director at any time [40 CFR
122.41].
Page 7 of 7

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ilk
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>, `, ",` , 'Old Richmond Creek ff ` - - �� .,t e i
r" ,y` _, ! [flows southwest] )y :..... 1 '� �_---'
_rr'4 )' i
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4 49-- / N.' -./tP'P \'C. -,\''..:.. V / 1 ('-\\1,-.7--,-.'-\(r-,,,-` ,
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40
of. � ', t�� %i i .t(: �1 - ; _�
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Approximate �, P:�, _ `
' ' Facility Boundary •f ,,�'' �, c
.-- , •, `�J Outfall 001
��-----==`, 1,1,- . - - �, (flows east) f
p'.,izr4. Water Supply �,
_ u
,s t< r- PLl
�,/,,, ` , Intake I, \ t � o . _ ‘,
--- \\ it\-1 --,--/;-7,----';:04(:,,„:1-1,1„-tt..K2:,,,, N::,,,_,,,,,,f,c,,-,_-.3-:--4--11-,r, - 14,,,,,,,,,k.„..j.:..)„,;S,),,,;
7'�+ Imo, 83] l.�j'K\\\\\�� •\ f -� • II(4 �' �M�3'� �C(SJ"`r, �5
S
�- r ,'` +( ,�/�' Donnaha Rd
/)�•J I? 114, �.0 0' ;l 1�, t ,? %-f `i-,.„1`f1, .1§1�4•.C ` ! lY "'41. %.' ` 1 •/.q'�
�`__.�,�. � 1 "'�e _ 1 t�i \ J j I
h / /,,i' i lirt -`r '44 ', V.
.t,1‘44 �;. 1 Lj �'_- f tt
f
i� `, % ` , Yadkin River /n��
7 �"'{; [flows south] J
2� , � ,,
- Reynolda Rd ' _
��` ``•c- NC Hwy 67
}
J - ,ors"
•
t
City of King -,. L-11:- -:\
Water Treatment Plant (WTP) Facility +��� _� �, 1
Location .'iti nisi, ..
6949 Donnaha Road,Tobaccoville 27050 *to
Receiving Stream: Old Richmond Creek Stream Segment: 12-79 Scale 1:24,000 �a�
Drainage Basin: Yadkin-Pee Dee River Basin Sub-Basin: 03-07-02
Latitude: 36°13'22" Longitude: 80°25'39" NPDES Permit NC0088897
Stream Class: WS-IV HUC: 03040101 North
County:Forsyth Forsyth County