NC0073679_Draft Permit_20180815

ROY COOPER
Governor
MICHAEL S. RErGAN
Secirelary
LINDA CULPEPPER
1nferim Dfrector
NORTH CAROLINA
Environmental Quality
August 15, 2018
Shannon V. Becker, President
c/o Amanda Owens, Manager Environmental Compliance
AQUA North Carolina, Inc.
202 MacKenan Court
Cary, North Carolina 27511
Subject: NPDES Permit - DRAFT Review
Permit NCO073679
Oak Hollow Subdivision WTP, Class PC-1
Off NC Hwy 42, near Mount Pleasant
Wake County
Dear Mr. Becker:
Based on your request to renew the subject permit, the Division of Water Resources (DWR or
the Division) hereby transmits a renewal draft for your review and comment. Please review it
carefully to ensure your understanding of the limits and monitoring conditions, and to correct
errors, if any.
Summary of Changes to the Previous Permit -- The following will be incorporated into the
permit:
1. DWR has discontinued monitoring for Total Iron [no standard/no longer
a parameter of concern (POC)].
2. Per potable water treatment plant (WTP) strategy (2012), continued quarterly
monitoring for Total Manganese (no limit) as required of greensand filter
treatment technology.
3. Total Nitrogen / Total Phosphorus (TN/TP) remain in the permit,
monitoring semi-annually per current Neuse River Basin Nutrient
Management Guidelines.
4. Because TN/TP monitoring is required, this facility is not eligible for WTP General
Permit NCG590000.
5. Updated site map and the Supplement to Permit Cover Sheet narrative.
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11617 Mad Service Center I Raleigh, North Carolina 27699-1617 — 919.707.9000

Shannon Becker, President
c/o Amanda Owens, Manager Environmental Compliance
Draft Review — NCO073679
15Aug2018
Page 2
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 DENR /
DWR / NPDES Program no later September 10, 2018 (approximately 30 days after receiving
this document). Your written comments are welcome, but are not mandatory.
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. (4.)].
Following the mandatory 45-day public comment period, the Division will review all pertinent
comments, if any, and take appropriate action prior to issuing an NPDES permit final. If you have
questions concerning this draft, please e-mail me [e-mail]], or call my direct
line [phone].
Respectfully,
Joe R. rporon, L.G.
Comp lance and Expedited Permitting Unit
Enclosure: NPDES Permit NCO073679 (permit draft)
hc: NPDES Program Files
ec: RRO/SWPS, Danny Smith, Supervisor
OCU, Maureen Kinney
AQUA Amanda Owens
Wake County, Eric Green [[e-mail]]
DEQ��

NPDES Permit NCO073679
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
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
AQUA of North Carl,
is herebyauthorized to discharge treated writ' ewater from a�fa ili known as
g tY
Oak Hollow SubdY�1�oifWTP
Off \
ONC Highway , . �Z ea�Mount Pleasant
R',
WaL Cou, sty
to receiving waters designated as unnamed = bury (UT) to Middle Creek within the Neuse River
Basin, in accordance with-effluen� imitations, t�nonitog requirements, and other conditions set
forth in Parts I, IT II , and IV. e eof.
The permit shall become,effective 12018.
This permit and the authorization to discharge shall expire at midnight on April 30, 2023.
Signed this day 92018.
Linda Culpepper, Interim Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

NPDES Permit NCO073679
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.
AQUA of North Carolina
is hereby authorized to:
continue to operate a filter -backwash treatment system ern
treat groundwater in support of potable -water production (
backwash discharge, max monthly average 0.00072 MG C
utilizing �
• influent raw water [single groundwater
• three (3) each, circular greensand filters
• disinfection (chlorination / dechlorm tii
• potable -water storage tank [5,000\g4t]-
• wastewater storage
• wastewater sandbed
• discharge line (2-ins
Chemicals used:
,reensand filter technology to
ow 0.180 MGD), generating a
) days/week for —12 minutes]
these facilities located`at�the Oak Hollow Subdivision Water Treatment Plant (WTP), off NC Hwy
42 near Mount Pleasant, ake C,o�nty, and
2. discharge from said treatment works via Outfall 001, at a location specified on the attached
map, to an unnamed tributary (UT) to Middle Creek [Stream Segment 27-43-15-(1)], a
waterbody currently classified C; NSW within Subbasin 03-04-03 [HUC: 03020201 ] of the
Neuse River Basin.
Page 2 of 6

NPDES Permit NCO073679
A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[NCAC 0213.0400 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 via Outfall 001. Such discharges shall be limited, monitored and
reported 1 by the Permittee as specified below:
EFFLUENT
CHARACTERISTIC
[PARAMETER CODES]
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow 2 (MGD)
50050
/2 �1Vlonth
Estimate 2
Effluent
Total Suspended Solids
C0530
30.0 mg/L
45.0 mg
f2Mlonth
Grab
Effluent
Total Residual Chlorine
50060
17i
2/Mo#th
Grab
Effluent
pH [standard units] -
00400
Not < 6.0 0 N> 9�O s.u.
2/Month`\
Grab
Effluent
Turbidity (NTU)
00070
Monitor and report /
/,Monthly
Grab
Effluent
Total Manganese (µg/L)
01055
Monjorand report <
Quarterly
u Grab
Effluent
Total Nitrogen (TN) 4 (mg/L)
C0610
Monitor ana report
\Semi-annually
Grab
Effluent
Total Phosphorus (TP) (mg/L)
AGO 65`
\Monitor\and eport�
�S mi-annually
Grab
Effluent
Footnotes:
1. Beginning from the permit i
data electroni c lly using thf
application [See Section A.
2. Flow: Permittee\all`recorc
available for DWR mspectil
DMRs/eDMRs.
V
ee shall report monthly discharge monitoring
;ischarge Monitoring Report (eDMR) internet
requirements] .
i flow duration in log books; logs to be kept onsite
report Total Daily Discharge in all monthly
3. The Division shall consider c mpjiant all TRC effluent values reported below 50 µg/L. However,
the Permittee shall continue to/record and submit all values reported by North Carolina -certified
test methods (including field certified), even if these values fall below 50 µg/L.
4. TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and
NO3-N + NO2-N are Nitrate and Nitrite Nitrogen, respectively.
Conditions:
All effluent samples shall accurately represent the physical and/or chemical character of the discharge.
The Permittee shall discharge no floating solids or foam visible in other than trace amounts.
The Permittee shall discharge no wastes or chemicals unrelated to responsible treatment of raw
water.
Page 3 of 6

NPDES Permit NCO073679
A. (2.) 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):
1.
• Section B. (11.)
• Section D. (2.)
• Section D. (6.)
• Section E. (5.)
Signatory Requirements
Reporting
Records Retention
Monitoring Reports
The permittee shall report discharge monitoring data
Electronic Discharge Monitoring Report (eDMR) in)
Monitoring results obtained during the previous
and submitted electronically using eDMR. The
monitoring data and submit DMRs electro�icall
state's eDMR application is compliant with �\\E��r�
(CROMERR), permittees will be required�toul
electronically using eDMR an'ddwiiNbe required
signing, and submitting one sig ied o 1'gnal a\naN
following address:
NC DEQ / Diyi
ATTENTION Cbntral Fib
1617 Mail Service Center
Raleigh, North Car�lina 27
the NC DWR's
month(s) shall be sumin i 'zed for each month
eDMR`sys tee Allows peft�ed facilities to enter
y using the,iiternet. Until such time that the
CrossX�edia Electronic Reporting Regulation
)mit,all discharge monitoring data to the state
tocompleete the,DMR submission by printing,
a copy of�the�computer printed eDMR to the
Permitting Section
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the
facility being physically4 ated i� 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

NPDES Permit NC0073679
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 t� o the approp \\lectronic reporting tool for
each type of electronic submission and for each s ate Instructions on how to access and use the
appropriate electronic reporting tool will be available as well"'Informatibo on EPA's NPDES
Electronic Reporting Rule is found at:
Electronic submissions
above.
3. How to
Requirements" section
The permittee may seek a emporaKy,electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, \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 Divisionfor written 1 pproval 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 waivershall 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:
hllp:Hdeq.nc.gov/about/divisions/water-resources/edmr
Page 5 of 6

NPDES Permit NC0073679
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:
htt-P:Hdeq.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
direction or supervision in accordance with a system,d,
properly gather and evaluate the information su ittec
Z
persons who manage the system, or those persons direc
information, the information submitted is, to the best o)
and complete. I am aware that there are significant pet
including the possibility of fines and imprisonment for ,
5. Records Retention [Supplements Section D�(611-,
The permittee shall retain redords-o
submissions. These records or copi
date of the report. This period may
122.41].
rl'l attachments were prepared under my
gned to\assure that qualified personnel
Based on myinguiry, of the person or
ly re- onsible forgathering the
vnylknowledge nd'b 'belief, true, accurate,
ilti s for submattingfNse information,
,iowznz violations. "
charge -Monitoring Reports, including eDMR
\ Vr /. � � U
beam �ntamed,f6r;a period of at least 3 years from the
ided,by, request of the Director at any time [40 CFR
Page 6 of 6

(flows N)
Imo.
�� -�
_��. •
Barber Bridge Rd
i
♦ l J
• �` NC Hwy 42140
Old Stage -
Road
Aqua North Carolina, Inc.
Oak Hollow Subdivision WTP
USGS Quad: Angier Stream Class: C, NSW
Latitude: 350 35' 25" N Subbasin: 030403
Longitude: 78° 40' 35" W Receiving Stream: UT to Middle Creek
Facility
Location
Map not to scale
North NPDES Permit NCO073679
Wake County