NC0073679_Permit Issuance_20080603

Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
June 3, 2008
Aqua North Carolina, Inc.
Thomas J. Roberts
202 MacKenan Court
Cary, NC 27511
Subject: Issuance of Renewal NPDES Permit
Permit NCO073679
Oak Hollow WTP
Wake County
Dear Mr. Roberts:
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge permit. this permit is issued pursuant to
the requirements of North Carolina General Statute 143-215.1 and the a Memorandum_ of Agreement
between North Carolina and the U.S Environmental Protection Agency dated October 15, 2007 (or as
subsequently amended).
2008:
This final permit includes two major changes from the draft permit send to you on April 9,
1) A Total Monthly Flow (TMF) calculation and A. (2) Section are no longer necessary. The
TMF value and A. (2) Section were needed to calculate the TN Load which is no longer required.
2) A TN Load calculation, Monthly and Annually, has been removed from this permit. The
Division has determined that the TN Load impact from this facility does not warrant further
evaluation at this time. As nutrient conditions or other factors change in the Neuse River Basin
the Division will re-evaluate this permit requirements.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings
(6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this
decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division
may require modification or revocation and reissuance of the permit. This permit does not affect the legal
requirements to obtain other permits which may be required by the Division of Water Quality or permits
required by the Division of Land Resources, the Coastal Area Management Act or any other Federal or
Local governmental permit that may be required.
if you have any questions concerning this permit, please contact Ron Berry at telephone number
[phone], extension 531.
Sin =ely, /� -
-�pr : Coleen H. �3 /xs--I-
Attachments
Cc: Raleigh Regional Office/Surface Water Protection Section
Central Files
NPDES Unit
Division of Water Quality, Point Source Branch Telephone [phone] _ Dne Caro .
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 FAX [phone]V'�'tllrQ
512 N. Salisbury Sheet, Raleigh, North Carolina 276D4 On the Internet at h&p.V1h2b.enrstatencuF1 Jt'u y
An Equal Opponuniry/Affirmative Action Employer

Permit NCO073679
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELINIINATION SYSTEM
In compliance with the provision 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,
_ - - _ . __ .._. Aqua North-�Carolina, Inc. -
is hereby authorized to discharge wastewater from a facility located at the
Oak Hollow Subdivision WTP
Off NC Highway 42 near Mount Pleasant
Wake County
to receiving waters designated as an unnamed tributary to Middle Creek in the Neuse River Basin in
accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
H, III and IV hereof.
The permit shall become effective July 1, 2008
This permit and the authorization to discharge shall expire at midnight on April 30, 2013.
Signed this day June 3, 2008.
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO073679
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.the_intermittent discharge from _a drrinking-w-ater treatrnent_.pla _of sand filters waste water.
that flows through a tablet dechlorinator and then to a final sand bed filter before discharging to the
permitted outfall. This facility is located at the Oak Hollow Subdivision Water Treatment Plant off NC
Highway 42 near Mount Pleasant in Wake County.
2. Discharge at the location specified on the attached map into an unnamed tributary to Middle Creek,
classified C-NSW waters in the Neuse River Basin.

r
Discharge Point
NCO073679
If
U
h `
� ' ice _ 7
Ni `
l.aG,g-017G
USGS Quad: E24SW Angier, NC
Facility
Latitude: 35' 35' 25" N Stream Class: C, NSW
Location
Longitude: 78' 40' 35" W Subbasin: 030403
Receiving Stream: UT to Middle Creek
NC0073679 Oak Hollow WTP
North Wake Countv

Permit NCO073679
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge filter wastewater from outfall 001. Such discharges shall be limited and monitored by the
Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample Location
Flow
0.0025 MGD
Monthly
Estimate
Effluent
Total Suspended Solids (TSS)
30.0 mg/L
45.0 mg/L
21Month
Grab
Effluent
Total Iron
(mglL)
Monthly
Grab
Effluent
Total Residual Chlorine (TRC) 2
17 µg/L
21Month
Grab
Effluent
pH 3 _
21month
Grab
Effluent
Nitrite/Nitrate Nitrogen 4
IN N + NO3-N)
Monitor & Report (mg/L)
Semi-annually
Grab
Effluent
Total Kieldahl Nitrogen (TKN) 4
Monitor & Report (mg1L)
Semi-annually
Grab
Effluent
Total Nitrogen (TN) 4
TN = (NOrN + NO3-N) +TKN
Monitor & Report (mg/L)
Semi-annually
Calculated
Effluent
Total Phosphorus (TP)
Monitor & Report (mg1L)
Semi-annually
Grab
Effluent
Footnotes:
1. Daily flow estimates are determined by the number and duration of backwash/rinse events.
2. Total Residual Chlorine compliance is required for chlorine or chlorine derivative used for
disinfection. The facility.shall report all effluent TRC values reported by a NC certified laboratory
including field certified. However, effluent values below 50 µg/L will be treated as zero for
compliance purposes.
3. The pH shall not be less than 6.0 s.u. or greater than 9.0 s.u..
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.
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.

FACT SHEET - RENEWAL NCO073679 Oak Hollow WTP
*REVISED:5/29/08
*Per revised guidelines this permit is no longer required to calculate or report TN Loads.
Therefore, the final permit has been revised to remove TN Load requirements including TMF.
Will keep semi annual frequency TN & TP.
Current Date: April 2, 2008 Prepared by: Ron Berry
Previous Renewal Permit Effective Issue Date: November 1, 2003
Existing Permit Expiration Date: April 30, 2008
Renewal Permit Expiration Date: April 30, 2013
Discharge: UT to Middle Creek
Basin: Neuse
Classification: C, NSW
General:
Upon review the initial renewal application was returned 12/27/07 with a letter (return #2272) to the
owner's consultant requesting submittal of the correct form and the required flow schematic. The
consultant was also contacted by phone to make him aware of the return plus answer any questions.
A follow up letter was also send to Aqua 1/2/08 alerting the owner of the status of the renewal. On
1/16/08 the correct application with all the requested information and copies was received and
accepted.
In 2007 ownership name change occurred, Aqua North Carolina, Inc. Tablet dechlorination system
was added via AtC in March 2005. Facility is Class H, SIC 4941 with an average monthly permitted
flow of 0.002 MGD.
Will apply Greensand filter water plant treatment strategy..
Effluent Limited criteria are:
- Flow, monthly average max, monitor to determine TN Load
- TSS, daily max, monthly average max
- Iron, monitor only
- TN, calculate allocated N lbs
- (NO2-N + NO3-N), monitor to determine TN
- TKN, monitor to determine TN
- TN Load, monitor only
- TP, monitor only
Water Quality Limited criteria is:
pH, daily range limit.
TRC, daily max.
The 2008 renewal application included a copy of the Sludge Management Plan.
Process:
Well water is treated with sodium hypochlorite solution and sodium hyroxide prior to entering two
parallel sand filters. As the filtered drinking water exits the sand filters it receives an additional
chemical treatment with sodium phosphate. To regenerate the sand filters the same chemically
treated well water is used to backwash and rinse the filters. This intermittent filter wastewater is
passed through a tablet dechlorinator and then a sand bed filter before being finally discharged to
the permitted outfall. Accumulated solids in the sand bed are removed by a contractor routinely.
Discharge is into a UT to Middle Creek.
Page 1 of 1

Multiple reporting violations.
Concerns:
Flow effluent monitoring/reporting, currently estimated. Based on data evaluation of DMR data
the permitted flow should be set at 0.0025 MGD monthly average.
TSS monitoring with Effluent Daily and Monthly Average Limits. Sample is grab. Will increase
frequency to 2/month. DMR data review indicates no violations, daily value typically less than 5
mg/L.
Settleable Solids monitoring with Effluent Limits, currently in active permit. Will remove to
comply with strategy. No issues in DMR data.
Turbidity monitoring with limits upstream and downstream, currently in active permit. Will
remove to comply with strategy. No data, discharge is to zero flow stream.
Iron monitoring only. Sample is grab. Will increase frequency to monthly. DMR data review
indicates values above action level criteria, will continue to monitor.
TRC monitoring with Water Quality Daily Limit. Sample is grab. DMR data review indicates no
violations. Will need to modify footnote to state definition of chlorine additives, compliance date
already enforced. -
.pH monitoring with Water Quality Daily Limits, currently not in permit. Will add per strategy.
Requires grab sample 2/month.
Total Nitrogen (TN) monitoring only, currently monitored with measurements semi-annually of
TKN and (NO2 N + NO3-N). TN Load calculations and reports submitted monthly and annually.
Sample is grab. Will maintain current frequency. Per DMR data TN Load is less than 1 N-lb/yr.
Total Phosphorus (TP) monitoring, currently monitoring only with semi-annual measurements.
Sample is grab. Will maintain current frequency. Based on DMR data values less than 0.5 mg/L.
Changes to renewal permit:
1. Remove Turbidity from permit.
2. Remove Settleable solids from permit.
3. Add pH monitoring with limit range to permit, 2/month.
4. Edit permit, owner name to reflect Aqua, update description in supplement.
5. Edit TRC existing footnote to show only definition for chlorine additive.
6. Increase TRC frequency to 2/month.
7. Increase Iron frequency to monthly.
Rational For Changes:
Per water treatment plant strategy monitored only measurement frequency is monthly and limited
measurement frequency is 2/month. Therefore, TSS, TRC, Iron, and pH are set. For TN,
Nitrite/Nitrate, TKN, and TP the previous permit semi-annual measurement frequency is deemed
sufficient.
TRC footnotes need to clearly define the additives. The limit is enforced and no longer requires
compliance time line.
There is no fluoride, zinc, or manganese chemical additives used in this facility.
Page 2 of 2

DMR Data NCO073679 Date: 3/31/08
Oak Hollow WTP pb:rdb
--*—Daily Flow Estimate, MGD i—Monthly Average, MGD �Pennitted Monthly Average, MGD
0.0045
-
- --- - -
---------------------------
0.0040
_---.
- ----
0.0035
------
. ---
-
0.0030
---
---- - -
O
0.0025
0
0.00204
a
0.001515
-----
---
0.0010-------
..__
_
-
0.0005
---------
- -
0.0000
V LfJ
00000000000000000
WLf>Lf)0 nV1N1g1t)1t)I!)f0(pmtOtt)tOfD000
0 0 0 0 0 0
oconrn[
0 0
�1, nnnnr.r,n
0 0 0 0 0 0 0 0 0 0
0
0
om
LL Q QIn0ZO�LL
Q QrAOZO�LLMQ2�
QW
Z❑
Quarterly
Rdg —Daily Rdg MAX
Limit
----------- -----------------------------
----------- ------
45
40
-----------------------------------------------------------------------
35
---------------------------------
------------------------------
------
30
-------
--------------------------------------
— - —
-----------------
25
-------------
—---------------------------------
— --------------------
N
f
15
----------------------
-.----------------------
--
----------------------
10
-----------------------------------
---------
— ---------
--------------
5
--------
---------- ----..
_..-- - ------------__------------------
0
� 0 N
0 m W 0 o 0 0 N N N 0
W 0 f0 W 0 W W(
0 0
C` t`
P. r` n t n P. n
t
r
9909999900000000000000000
0
0 0 0 0 0 0 0
0
0
a Q N Z o 7 LL
2 Q 2 ' Q W 0
Z 0
LL
2 a m Q /n
Z
—*—Quarterly
Rdg —Daily Rdg MAX Limit
0.25 -- ---
--- ---- --------
0.20
S'
e
rn
P0.15
----------
---------------------
---------
---...------
e
N
d
-----------------------------
____
z
m
to
0.05
0.00
0 0 0
aQ0a fo
0 0 0 0 0 0 o g 0
m m 0 0 0
0 a 0 00 0 0 0 0 o
m m
q o
n n
0 0
n n r n 9 n
0 0 0 0 0 09 0
9 0
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0
m m m
a m io o m m m
m a m m 0 d
m
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'a d
LL
ag ''a rn 0zO E
¢m-�''a w0zo4a2ai
aco
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DMR Data NCO073679 Date: 3/31/08
Oak Hollow WTP pb:rdb
Quarterly Rdg —Daily Rdg MAX Limit
0.25
-------- ..------- ------
0.20
E
N
-------------------
0
N
m
------------
m
m
m
0.00
N V) 109 Oto OOO 9 9 9 9O n n n n n n n n n n n
O O O OOgOto 9
q O O O O q q O O O O
� rL � � � X
lL a rL Q 0 0 z a IL Q 2� Q (n 0 z a !L � Q � � a (n z
1-4—Quarterly Rdg —Daily Rdg MAX Limit
18.00
---------- ----------
16.00---
---------------- -----------------------------------------
14.00---------
-_--------------
12.00
-.__--------------------- ---------
10.00
-------- ----------- --
s8.00
--.._..---- —------------------------------------- — ------ -- ------
0
6.00
------------- ------
4.00
------------..----- -----...--
2.00
--------------- -
0.00
9 9 (n 9 in 9 o (0 m 9 m 9 9 9 (m 9 9 9 9 n n n n n n n n n n n
0 0 0 o g o 0 0 0 0 0 o g o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o q o o q o
m m m a
=m"'mm 0= m '
mm"'
LL am 75
a a � a(0 za a2 Q(n0z
Quarterly Rdg
4.00
- ---- ---- ----
3.50
---- ----------- ------ ----- -------------------------------------
3.00 -------
..__-..-----
2.50 --...
----- ---------------------- ----------- — -------------- — ----
0 2.00
------------------. -- --------------
21.50
---------- --- ----- -----
0
F
0.50
----------------
0.00
�0 �n �0 �n �n �n in in �n u> in u> c0 m c0 c0 m m m m m m c0 m n n n n n n n n n n n
0 0 o o g o 0 0 0 0 0 0 0 q o 0 0 o q o o q 0 o q o o g O o q o 0 0 0
m m m o- m M m 00 0 W m m a m M� W m" o m m m 'a a m =, 0 m m 00
n LL2am-� am0z CnLL Mn QmOzanLL�Q 2n Q(n0z

00600 - Nitrogen, Total (as N)
Date
mg/L
1126/05
0.24
8110/05
0.66
319/06
1.52
7/17/06
0.33
315/07
0.067
7/25107
0.075
TN Load = TMF x TN x 8.34
2005: 0.38 N-lb/yr
2006: 0.63 N-lb/yr
2007: 0.11 N-lb/yr
DMR Data NCO073679
Oak Hollow WTP
00665 - Phosphorus, Total (as P)
mg/L
0.43
0.36
0.22
0.26
0.13
0.14
Date: 3/31 /08
pb:rdb

® North Carolina Wildlife Resources Commission
15)10 35 CS) tLyDili 8
TO: Ron Berry, NPDES Unit
Division of Water Quality
FROM: Shari L. Bryant, Piedmont Region Coordinator
Habitat Conservation Program
DATE: 5 May 2008
SUBJECT: Proposed Permit Renewal for Aqua North Carolina, Inc, Oak Hollow WTP, Wake
County, NPDES Permit No. NC0073679
Biologists with the North Carolina Wildlife Resources Commission have reviewed the subject
document. Our comments are provided in accordance with provisions of the Clean Water Act of 1977 (as
amended), Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d), North
Carolina General Statutes (G.S. 113-131 et seq.), and North Carolina Administrative Code 15A NCAC
10I.0102.
Aqua North Carolina, Inc. has applied for a renewal of its NPDES permit to discharge filter
wastewater into an unnamed tributary to Middle Creek. The Public Notice indicates that total residual
chlorine and pH are water quality limited.
There are records for the federal and state endangered dwarf wedgemussel (Alasmidonta
heterodon); the federal species of concern and state endangered Atlantic pigtoe (Fusconaia mason); the
federal species of concern and state significantly rare pinewoods shiner (Lythrurus matutinus); the state
threatened creeper (Strophitus undulatus), Eastern lampmussel (Lampsilis radiata), triangle floater
(Alasmidonta undulata) and least brook lamprey (Lampetra aepyptera) in Middle Creek.
Chlorine is acutely toxic to aquatic organisms and can form secondary compounds that are
detrimental to aquatic life. We are especially concerned about impacts to dwarf wedgemussel and other
listed species in Middle Creek. Valenti (2006) concluded the impact of long term exposure to low doses
of chlorine may impact juvenile mussels and reduce the chance of them being recruited to the reproducing
population.
We offer the following recommendations to reduce impacts to aquatic resources.
1. Use a non -discharge option for filter backwash wastewater.
Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699-1721
Telpnhnnpe f9191707-0720 • Fay- 191M 707_n07R

Page 2
5 May 2008
Oak Hollow WTP
NPDES Permit No. NC0073679
2. If non -discharge is not an option, then the applicant should implement measures (e.g., use of non -
chlorinated water, de -chlorination, or holding filter backwash wastewater in detention ponds to
allow dissipation of chlorine) to minimize the discharge of chlorinated filter backwash
wastewater.
Thank you for the opportunity to comment on this permit renewal. If we can be of further
assistance, please contact our office at [phone].
Literature cited
Valenti, T.W., D.S. Cherry, R.J. Currie, R.J. Neves, J.W. Jones, R. Mair, and C.M. Kane. 2006. Chlorine
toxicity to early life stages of freshwater mussels (Bivalvia: Unionidae). Environmental
Toxicology and Chemistry, 25(9):2512-2518.
ec: Rob Nichols, WRC

NORTH CAROLINA.
Wake Countv.
the
AFFIDAVIT OF PUBLICATION
Ss.
Copies of the draft permit and other supporting informs.
fion on file used to delermine conditions present in the
draft permit are available upon request vad payment of
the costs of
reproduction. Mail comments and/or requests
for information to the NC Division of Water Duality at the
above address or call Dina Sprinkle (919) 733-Sg03; eaten
sign 363 at the Point Source Branch:'Please inclutle the
NPDES permit number (below) in any communication.
Interested persons may also visit the Division of Water
Duality v1512 N. Salisbury Street, Raleigh, NC 27604-1148
between the hours of 0:gg a.m. and 5:go P.m. to review
information on file.
may
Box
no
Before the undersigned, a Notary Public of Chatham
County North Carolina, duly commissioned and authorized to
administer oaths, affirmations, etc., personally appeared Debra
Peebles, who, being duly sworn or affirmed, according to law,
doth depose and say that she is Billing Manager -Legal
Advertising of The News and Observer a corporation
organized and doing business under the Laws of the State of
North Carolina, and publishing a newspaper known as The
News and Observer, in the City of Raleigh , Wake
County and State aforesaid, the said newspaper in which such
notice, paper, document, or legal advertisement was published
was, at the time of each and every such publication, a
newspaper meeting all of the requirements and qualifications
of Section 1-597 of the General Statutes of North Carolina and
was a qualified newspaper within the meaning of Section 1-
597 of the General Statutes of North Carolina, and that as such
she makes this affidavit; that she is familiar with the books,
files and business of said corporation and by reference to the
files of said publication the attached advertisement for NC
DMSION OF WATER QUALITY was inserted in the
aforesaid newspaper on dates as follows: 04/11/08
Account Number: 73350833
The above is correctly copied from the books and files of the aforesaid Corporation- and publication.
Debra Peebles, Billing Manager -Legal Advertising
Wake County, North Carolina
Sworn or affirmed to, and subscribed before me, this
14 day of APRIL , 2008 AD ,by Debra Peebles.
In Testimony Whereof, I have hereunto set my hand
and affixed my official seal, the day and year aforesaid.
v Janet Scroggs, Notary Public
My commission expires 14"o of March 2009.

The Town of Smithfield has appl led for renewal of N PDES
Permit numberNC00833d8 for Its WTP. This permitted
facility discho roes filierbackwash wastewater to Buffo to
Creek in the Neese River Basin. Currently total residual
chlorine is water quality limited. This discharge may
affect futurealiocations in this portion of Buffalo Creek.
The City of Raleigh has applied far reneoral'of the NPDES
discharge Permit (NC0029033) for its House River Waste.
water Treatment Plant located an NCSR 2552 southeast of
Raleigh. This facility discharges to the Neese River, a
class C-NSW water in the souse River Basin. Currently,
BOO, PH, dissolved oxygen, ammonia, total nitrogen, and
total phosphorus are water quality limited.
Aqua North Carolina, Inc, has applied far renewal and a
modification to NPDES Permit Number, NC0058505, Mal-
lard Crossing Subdivision WWTP on NCSR 2219 north of
Knigthdale In Wake County.- This facility discharges
treated wastewater into an unnamed tributary to Hodges
Mill Creek in the Neese River Basin. Currently, ammonia,
fecal coliform, temperature, dissolved oxygen, PH, total
residual chlorine, and various radiological components
based on drinking water standards are water quality
limited. This discharge may affect future allocations is
this Portion of the receiving stream.
Aqua North Carolina, Inc. has applied for renewal of
NPDES Permit number NCOOIk19, Oak Hollow. WTP
located off NC. 42 near Mount Pleasant In Wake County.
This Permitted facility discharges filter wastewater to va
unnamed tributary to Middle Creek In the Neuse River
Basin. Currently total residual chlorine and PH ore water
quality limited. This discharge may affect future alloca-
tiana'in this portion of Middle Creek. -
The CItY of Raleigh (P.O. Be. 590, Raleigh, NC 2]602) has
applied for renewal of NPDES Permit number NCO082376
for the E.M. Johnson WTP in Wake County. This Permitted
facility discharges filter backwash wastewater to the
Noose River or to a UT to Honeycutt Creek arm of Fol is
Lake in the Nease River Basin. Currently Suspended
Solids, total residual chlorine, Phosphorus, and Manga-
nese are water quality limited. This discharge may affect
future allocations in this Portion of the Neese River Basin.
animations to this portion of Mlagle LrpgK. I
Aqua North Carolina, Inc. has applied for renewal of
NPDES permit NCOCW90 for the Stansted Well #2 WTP
located on Stansted Drive north of Fuquav-Varino in Wake
County. This permiftetl facility discharges send filter
wostewaterto on unnamed tributaryto Basal Creek in the
Neese River Basin. Currently total residual chlorine and
PH are water quality limited. This discharge may affect
future allocations in this Portion of Basal Creek.

ARCADIS
Infrastructure, environment, facilities
Ron Berry
N. C. Department of Environment and Natural Resources
Division of Water Quality/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
subject:
NPDES Permit Renewals
Aqua North Carolina, Inc.
Dear Mr. Berry:
0,4)IS G&M of North Carolina, Inc.
v
LS
South Tryon Street
JAN 1 6 2008
rrss28
Cfiadotte0
i
•North Carolina 28202
r
Te1704.752.4258
I
DEhR • W,nTF$ OL'Al lit
Fax [phone]
w .arcaclis-us.coro
On behalf of Aqua North Carolina, Inc., we are submitting the Revised NODES
Applications in response to your letters of December 21, 2007 and December 27,
2007 for the listed facilities:
1. NC0065714—Tradewinds WWTP
2. NCO060577— Beachwood Subdivision WWTP
3. NCO062715 — Crooked Creek Subdivision WWTP
4. NCO086690 — Stansted Well #2 WTP
5. NCO055701 — Nottingham Forest WTP
6. NCO082996 — Hollybrook WTP
7. NCO073679 — Oak Hollow WTP
Should any questions arise in the review of these documents, please feel free to call.
Sincerely,
ARCADIS G&M of North Carolina, Inc.
Doug C andler
Project Engineer
Copies:
Michael S. Harwood, Aqua North Carolina, Inc.
e
MUNICIPAL SERVICES
Dale:
10 January 2008
Contact:
Doug Chandler
Direct Line:
704-544-5425
Snail:
dchandler@arcadis-
us.com
Our rel:
CN7AQ739.0000

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water (Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number INCO073679
If you are completing this form in computer use the TAB key or the up - down arrows to move from one
field to the next To check the boxes, click your mouse on top of the boy- Othendse, please print or type.
1. Contact Information:
Owner Name
Aqua North Carolina, Inc.
Facility Name
Oak Hollow WTP
Mailing Address
202 MacKenan Court
City
Cary
State / Zip Code
NC/27511
Telephone Number
(919 )467-8712
Fax Number
[phone]
e-mail Address
[e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road off NC Highway 42
City
near Mount Pleasant
State / Zip Code
NC
County
Wake
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORQ
Name Aqua North Carolina, Inc.
Mailing Address 202 MacKenan Court
City Cary
State / Zip Code NC/27511
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private ® Public ❑
Page 1 of 4 C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
5. Type of treatment plant:
❑ Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfection)
❑ Ion Exchange (Sodium Cycle Cationic ion exchange)
® Green Sand Filter (No sodium recharge)
❑ Membrane Technology (RO, nanof3ltration)
Check here if the treatment process also uses a water softener ❑
6. Description of source water(s) (Le. groundwater, surface water)
Groundwater from well
7. Describe the treatment process(es) for the raw water:
• Filter#1 30" X 60" (backwash weekly)
• Backwash rate 70 gpm for 10 min.
• Filter #2 36" X 60" (backwash weekly)
• Backwash rate 90 gpm for 10 min.
• Both filters rinse together 40 gpm for 10 min.
• Chemical feeds before filProxide(Caustic)
:
Sodi Chlorine)
Sodium y
• Chemical feeds after filtration:
Sodium Phosphate(Sequestering)
• Chemical feeds after Backwash:
Calcium Thiosufate(Dechlorination)
Polymer Coagulate(Dewatering Polymer)
S. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Filter backwash from drinking -water well.
The backwash wastewater is passed through a 400 sf sandbed to remove residuals (sludge).
The effluent is dechlorinated and discharged to stream.
Residual solids are scraped from the sandbed and hauled to a landfill.
9. Number of separate discharge points: I
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ❑ Intermittent ED
If intermittent:
Days per week discharge occurs: 2 Duration: 30 mins.
11. Plant design potable flowrate 0.020 MGD
Backwash or reject flow 0.0020 MGD
Page 2 of 4 C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
unnamed tributary to Middle Creek in the Neuse River Basin
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
odium Chloride /
um Hydroxide
Sodium Phosphate
Calcium Thiosufate
Polymer Coagulate
14. Is this facility located on Indian country? (check one)
Yes ❑ No
15. Additional Information:
v Provide a schematic of flow through the facility, include flow volumes at all points in
the treatment process, and point of addition of chemicals.
Solids Handling Plan
16. NEW Applicants
Information needed in addition to items 1-15:
New applicants must contact a permit coordinator with the NCDENR Customer
Service Center.
Was the Customer Service Center contacted? ❑ Yes ❑ No
v Analyses of source water collected
Engineering Alternative Analysis
Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a
water quality model.
17. Applicant Certification
I certify that I am familiar with the information contained In the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
E rl-
of
of
i
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan, or other document files or
required to be maintained under Article 21 or regulations of the Environmental Management Commission
implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or
Page 3 of 4 C-WTP 03/05

WELL
38 GPM
CHdpfJIL FEED um ! �/2, ��
CHMOL Rm
FILTER #1
BACKWASH
70 GPM
FILTER #2
BACKWASH
SO GPM
Cm3m F®
SODllfwl PN06PWIm
TO WATER DISTRIBUTION
0.020 MGD
0.002 MGD
SANDBED TO STREAM DISCHARGE
REMOVE SLUDGE
DISPOSE IN LANDFILL
FLOW SCHEMATIC
OAK HOLLOW WTP

SLUDGE MANAGEMENT PLAN
Facility Name: Oak Hollow WTP
The sludge removal consists of passing filter backwash water through sand filter bed which in
turn goes to effluent stream discharge. Sludge management for this facility consists of the
raking of sludge from the 400 sf sand filter and hauled to a landfill by Aqua North Carolina, Inc.
The removal service occurs regularly on an as needed basis as determined by Aqua North
Carolina, Inc. operating personnel.
Sludge Collection and Disposal shall conform to 40 CFR 503 of the Clean Water Act.
Every shipment of sludge will be recorded in a log book. This log book will provide a record of:
1. date of shipment
2. volume removed off site
3. destination of sludge
Sludge Collection and Disposal Tracking:
Authorized Representatives shall document each shipment.

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
nA.,sA T..#AM1V\f1�fAN ;�A ■Ai• avnaflifail nPrmit renewal
Reviewer/Date
-
M pL q114110
Permit Number
MU10 q 3
Facility Name
60,k HnIlow WTP
Basin Name/Sub-basin number
3
Receiving Stream
W
Stream Classification in Permit
— 4ui
Does permit need NH3 limits?
Does permit need TRC limits?
Mn
— Gl U
Does permit need Enteroccoci limit?
Does permit have toxicity testing?
Does permit have Special Conditions?
S
Does permit have instream monitoring?
Is the stream impaired (on 303(d) list)?
Any obvious compliance concerns?
Any permit mods since last permit.
Existing expiration dateq/goh?
New expiration date
n.
New permit effective date
MicrpllanPnnc rnmmpntc
YES_ This is a SIMPLE EXPEDITED permit renewal (administrative
renewal with no changes, or only minor changes such as TRC, NH3,
name/ownership changes).
YES This is a MORE COMPLEX EXPEDITED permit renewal (includes
Special Conditions (such as EAA, Wastewater Management Plan),
Conventional WTP, 303(d) listed, toxicity testing, instream monitoring,
compliance concerns, phased limits). Basin Coordinator to make case -by -
case decision.
YES— This permit CANNOT BE EXPEDITED for one of the following reasons:
• Major Facility (municipal/industrial)
• Minor Municipals with pretreatment program
• Minor Industrials subject to Fed Effluent Guidelines (lb/day limits for BOD, TSS, etc)
• Limits based on reasonable potential analysis (metals, GW remediation organics)
• Permitted flow > 03 MGD (requires full Fact Sheet)
• Permits determined by Basin Coordinator to be outside expedited process
TR Version 9/7/2007
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