NC0085863_Draft Permit_20180711

ROY COOPER
INFICe.
Governor
MICHAEL S. REGAN
Secrela,y
LINDA CULPEPPER
Water Resources Inte,an Direclo,
ENVIRONMENTAL QUALITY
July 11,2018
Shannon V.Becker,President
c/o Amanda Owens,Manager Environmental Compliance
AQUA North Carolina,Inc.
202 MacKenan Court
Cary,North Carolina 27511
Subject: Review of Permit Renewal DRAFT
NPDES Permit NC0085863, Grade PC-1
Waterfall Plantation Water Treatment Plant(WTP)
off Mica Mine Lane [NCSR 1923],Wake Forest '
Wake County
Dear Mr.Becker:
In response to your request to renew the subject permit,the Division of Water Resources(the
Division or DWR) offers this draft for your review and comment.Please review the attached to
insure your understanding of the revised limits and monitoring conditions.
We understand that the subject WTP has made no significant changes to treatment-system or treatment
processes since last renewal.Note that this facility is not currently eligible for General Permit
NCG590000 (NCG59)because the Neuse River Basin Permitting Strategy requires specific monitoring
not possible under NCG59,namely Total Manganese(limited),Total Nitrogen(TN) and Total
Phosphorus(TP).
Changes to Your Previous Permit-We have updated your site-vicinity map and the facility description on
the Supplement to Permit Cover Sheet.We have also added regulatory citations to each section for your
information.
Division records show that you have successfully registered with the eDMR Program.Please be reminded
that until the state's eDMR application is approved compliant with EPA's Cross-Media Electronic
Reporting Regulation (CROMERR), all permittees must continue to submit hardcopy of DMRs as backup
to eDMR reporting [see permit section A. (3.)].
Concurrent with this notification,the Division will solicit public comment on this draft by publishing a
notice in newspapers having circulation in the general Wake County area, as required by the NPDES
Program.Please provide your written comments, if any,to me via email [[e-mail]], or
write to my attention care of NCDEQ/DWR/NPDES Program no later than August 15,2017,
approximately 30 days after receiving this letter.Your written comments are welcome,but are not
mandatory.
If you have questions,please email me [[e-mail] e c 1 my direct line 919-807-6394.
Sinif
�
o4 /_ ' -.
o e R. Corpor-.n,L.G.
Complianc- and Expedite Permitting
Attachments[permit draft]
cc. NPDES Permit file
ec. RRO,Attn:Danny Smith, SWQ Supervisor;Vanessa Manual;
OCU Maureen Kinney
RRO/PWS Allen Hardy[[e-mail]]

Permit NC0085863
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 nvironmental Management
Commission, and the Federal Water Pollution Control c as amended,
Aqua North CarliQ Inc.
ois herebyauthorized to discharge nma lca thewastewate " '
\ V
Waterfall Pantation WTP
off Mica Mine Lane NCSRN1�923' Wake Forest
ake��unty
to receivingwaters designated as orse CreekAin the(175 N'use River Basin in accordance with effluent
limitations,monitorin requir..ement and other•conditions et forth in Parts I, II, III and IV hereof.
This permit shall become effective ) , 2018.
This permit and authorization o discharge shall expire at midnight on January 31, 2023.
Signed this day 2018.
Linda Culpepper, Interim Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

Permit NC0085863
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.
Aqua North Carolina, Inc.
is hereby authorized to:
1. continue to operate a filter-backwash treatment system employing greet sand filter technology to
treat groundwater in support of potable-water production at 0.00GD [single wellhead],
generating backwash discharge averaging 0.0018 MGD [-30 minutes, 4 days/Week],utilizing
• single groundwater well
• raw water detention tank [5,000 gal]
• booster pumps •
• dual (2) greensand filters [w/backwash floor drainsto final sandbed]
• valve and flowmeter
'
• booster um s to backwash stora e t � 1,0 g 0 al]
p p g \ \ \
•
• tablet chlorination/dechlorination/phosphate'add'tive
• potable water to 10,000 gal s orage tank, to,,dist liuttNns stem
• wastewaters to final sandbed filter
• discharge line to_effluen sample point and ou fall;
these facilities locatedat he WaterfaPlantatfon TP, off Mica Mine Lane [NCSR 1923],
Wake Forest,W\akkounty; and \ ��
2. discharge from said treatment works via Outfall 001, at the location specified on the attached map,
into Horse Creek [Stream Segment 27-17-(2)], a waterbody currently classified WS-IV; NSW; CA
within subbasin 03-04-01 [HUC: 03020201] of the Neuse River Basin.
Page 2 of 6

Permit NC0085863
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 15A NCAC 02B .0500 et seq.]; WTP Grade PC-1
During the period beginning on the effective date of the permit and lasting until expiration,the
Permittee is authorized to discharge filter backwash from Outfall 001. Such discharges shall be limited,
monitored and reportedl by the Permittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS Monthly Daily Measurement Sample Sample
(PARAMETER CODE) Average Maximum Frequency Type Location
Flow 50050 2/Monthly
Estimate 2 Effluent
Total Suspended Solids C0310 30.0 mg/L 45.0 mg/L 2/Mont Grab Effluent
(TSS)
Total Residual Chlorine 50060 28 µg/L"/2/Monthly \\ Grab Effluent
c \
pH[standard units] 00400 Not<6.0 or>9.0 2/1V mthly \\Grab Effluent
Turbidity 00070 Monitor&Report(mg/L\\/(1%/1/Lhly Gr b Effluent
Total Manganese 01055 Monitor&R\p,\rt\N\)N\Q\�a terly Grab Effluent'
Total Nitrogen(TN)4 C0600/Monitor c jRepo\g/L)Se\wally Calculated Effluent
Total Phosphorus(TP) \ lkl\nitor -L.__
Total Semi-annually Grab Effluent
Footnotes: \\\ \/
1. The Permittee is required to submit disc arum nitoring reports electronically using the
Division's eDMR system\prrbgrram [sed 1. (2.)].
2. The Permittee shall determine v caste/flow discharge by estimating the rate, duration and number
of backwash/rinse events. \z/
3. The Division shall consider compliant all effluent TRC values reported below 50 µg/L.However,
the Permittee shall continue to record and submit all values reported by a North Carolina
certified test method(including field certified), even if these values fall below 50 µg/L.
4. For a given wastewater sample,TN=(NO2-N+NO3-N)+TKN,where TN is Total Nitrogen,
(NO2-N+NO3-N)is Nitrite/Nitrate Nitrogen, and TKN is Total Kjeldahl Nitrogen.
Condition:
The Permittee shall discharge no floating solids or foam visible in other than trace amounts.
Page 3 of 6

Permit NC0085863
A. (2.) ELECTRONIC REPORTING OF DISCHARGE 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.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting Requirements [Supersedes Section D. (2.) and Sectio'n E. (5.) (a)]
The permittee shall report discharge monitoring data electronics,ly'sing the NC DWR's Electronic
Discharge Monitoring Report(eDMR) internet applic�atio .
g
Monitorin results obtained during the previous mon` th ) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system all/oov "permitted\fad facilities to enter
monitoring data and submit DMRs electroni&tlly using tlaifiternet. Until such time that the state's
eDMR application is compliant with EPA's C'ro s4 Media Electronic Reporting Regulation
(CROMERR),permittees will be required to submit�l ischakge monitoring data to the state
electronically using eDMR and will e required\to complete the eDMR submission by printing,
signing, and submitting one signed rio ginal and a copy ofte computer printed eDMR to the
following address:
NC DEQ/Division tof er.Reso\urces,/Water-Qual' Permitting Section
asATTENTION: Centrl File
1617 Mail Service\Center
Raleigh,North Carolina 27699-16\171
\\\ \
If a permittee is unable toyu the 1 R system due to a demonstrated hardship or due to the
facility being physically located m 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 4 of 6

Permit NC0085863
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 NPDp -regulated facilities means the entity
(EPA or the state authorized by EPA to implement the N/PDES'prograrn that is the designated
CF
entity for receiving electronic NPDES data [see 40 ' 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. structions'>on how to`access and use the
appropriate electronic reporting tool will bailable as'ell. Information on EPA's NPDES
Electronic Reporting Rule is found at: ��
htts://www.federalre 'ster. ov/documents/2015/10/22 2014954/national- ollutant-dischar e-
p � g ` p g
elimination-system-npdes-elletronie=reort ng-rute\i �
Electronic submissions must�start by the dates lisfed in the"Reporting Requirements" section
above.
3. How to RequestaWaiver from Electronic Reporting
The permittee maseek a temporaryelecto nic reporting waiver from the Division. To obtain an
electronic reporting waive a perm ttee 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:
http://deq.nc.gov/about/divisions/water-resources/edmr
Page 5 of 6

Permit NC0085863
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.)
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,sta e'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 anattachments ere prepared under my
direction or supervision in accordance with a system de zgned to assure that\qualifzed personnel
properly gather and evaluate the information submittecOased i,my inquz of the person or
persons persons who manage the system, or those pons directly responsible for gathering the
information, the information submitted is, to th best of mj�knowledge and belief true, accurate,
and complete. I am aware that there are signifzcantpenalties for\submitting false information,
including the possibility of fines andndmprisonment knowingg\yzo>ations."
5. Records Retention [Supple m nt�on\D. (6J1
The permittee shall retain_ ecoids of all Discharge Monitoring Reports, including eDMR
submissions. These records r�pi s`hall'bes it ii ed 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 6 of 6

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Aqua North Carolina, Inc. Facility
Waterfall Plantation WTP
Location --.
HUC: 03020201 Receiving Stream: Horse Creek
Latitude: 35°58'54"N Subbasin: 03-04-01
Longitude: 78°33'8"W Stream Class: WS-IV;NSW
Stream Segment: 27-17-(2) State Grid/Quad: D24NE/Wake Forest North NPDES Permit NC0085863
Wake County