NC0085863_Permit Issuance_20080320

dk
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
March 20, 2008
CERTIFIED MAIL
Aqua North Carolina, Inc.
202 McKenan Drive
Cary, NC 27511
Subject: Issuance of Renewal Permit
NPDES Permit NCO085863
Waterfall Plantation Water T)reatment Plant
Wake County
Dear Sir or Madam:
The Division request that a contact person be provided to expedite future correspondence. 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 Memorandum of Agreement between North Carolina
and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended).
This final permit includes no major change from the draft permit send to you on January 30,
2008.
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.
Sincerely,
JC�✓r Colleen H. Sullins
Attachments
Cc: Raleigh Regional Office/Surface Water Protection Section
Central Files
NPDES Unit
Division of Water Quality, Point Source Branch Telephone [phone] N�`hCarolina
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 FAX [phone] a furQo�in
512 N. Salisbury Street, Raleigh, North Carolina 27604 On the Internet at http.y1h2o.enrsWte.ncW
An Equal Opponunily/AmrmatNe Action Employer

Permit NCO085863
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION 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
Waterfall Plantation WTP
NCSR 1923 near Wake Forest
Wake County
to receiving waters designated as Horse Creek in the Neuse 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 May 1, 2008.
This permit and authorization to discharge shall expire at midnight on January 31, 2013.
Signed this day March 20, 2008.
-11�e'•Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO085863
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 drinking -water treatment plant with a discharge of
intermittent Greensand filter backwash wastewater, post treated through a
dechlorination process and final sand filter before discharge. This facility is
located at the Waterfall Plantation WTP off NCSR 1923 near Wake Forest in Wake
County.
2. Discharge from said treatment works at the location specified on the attached
map into Horse Creek, classified WS-IV NSW waters in the Neuse River Basin.

r_ +
;—. ' 379
Discharge Point
1 Z
\ / 1
j . r
�.
1 ,• t
�Cf
f
USGS Quad: D24NE Wake Forest, NC Facility
Latitude: 35' 58' 49" N Stream Class: WS IV, NSW Location
Longitude: 78' 33' 15" W Subbasin: 030QI
Receiving Stream: Horse Creek North WaterfallPlantation1ArTF

Permit NC0085863
A. (1), EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the Perinittee is
authorized to discharge filter backwash 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
0.005 MGD
Instantaneous
Recorder
Effluent
Total Monthly Flow (TWF) 2
Monitor & Report (MGM)
Monthly
Calculated
Effluent
Total Suspended Solids (TSS)
30.0 mg/L
45.0 mg/L
2/Month
Grab
Effluent
pH 3
2/Month '
Grab
Effluent
Iron
Monthly
Grab
Effluent
Total Residual Chlorine (TRC) 4
28 Ng/L
2/Month
Grab
Effluent
Nitrate/Nitrite Nitrogen
(NO2-N+NO3-N)
Monitor & Report (mg/L)
Semi-annually
Grab
Effluent
Total Kjeldahl Nitrogen (TKN)
Monitor & Report (mg/L)
Semi-annually
Grab
Effluent
Total Nitrogen (TN) 2
TN= NO2-N+NO3-N +TKN
Monitor & Report (mg/L)
Semi-annually
Calculated
Effluent
TN Load = TN x TMF x 8.34 2
Monitor & Report
(pounds per month
Monthly
Calculated
Effluent
Monitor &Report
ounds er ear
Annually
Calculated
Effluent
Total Phosphorus (TP)
Monitor & Report (mg/L)
Semi-annually
Grab
Effluent
Footnotes:
1. Backwash flow total is measured and reported on the day that it occurs. The DMR calculated average of the
reported daily events is used for compliance determination.
2. TN Load is the mass quantity of TN discharged over a given time period. See A. (2) for Total Nitrogen
monitoring, calculating, and reporting requirements.
3. The pH shall not be more than 9.0 su or less than 6.0 su.
4. TRC limit applies for any chlorine or chlorine derivative addition.
M 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.

Permit NCO085863
A. (2) CALCULATION OF TOTAL NITROGEN LOADS -DRAFT
a. The Permittee shall calculate monthly and annual TN Loads as follows:
i. Monthly TN Load (pounds/month) = TN x TMF x 8.34
where:
TN = TN concentration (mg/L) of the sample collected during the semi-annual monitoring event. Use the
TN value for the month in which the sample was taken and successive months until another TN
sample is collected.
TMF = Total Monthly Flow of wastewater discharged during the month (MG/month). If all discharges are not
recorded at the facility, document the calculation(s) used to determine total monthly flow.
8.34 = conversion factor, from (mg/L x MG) to pounds
ii. Annual TN Load (pounds/year) = Sum of the 12 Monthly (calculated) TN Loads
for the calendar year
b. The Permittee shall report the semi-annual Total Nitrogen results in the discharge
monitoring report (DMR) for that month. The calculated pounds of TN load per month
will be reported on each month's DMR. The Permittee shall report each year's annual
results (pounds per year) on the December DMR.
A. (3) SPECIAL CONDITIONS
The permittee shall maintain records and document the disposal of all solid waste
including description of disposed materials and method of disposal. Any purchase order
and/or receipts from a contracted disposal service obtained for solid disposal should also
be keep as part of the maintained record. Upon request the permittee shall present the
maintained record for inspection.

Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
January 30, 2008
MEMORANDUM
To: Michael Dougla
NC DENR / D / Regional Engineer
Raleigh Regional Office
From: Ron Berry
NPDES —East Program
Subject: Review of renewal draft NPDES Permit NCO085863
Waterfall Plantation WTP
Please indicate below your agency's position or viewpoint on the draft permit and return this form by
February 29, 2008. If you have any questions on the draft permit, please contact me at telephone number
[phone], extension 531 or via e-mail at [e-mail].
RESPONSE: (Check one)
19 Concar with the issuance of this pernut provided the facility is operated and maintained properly, the stated
effluent limits are met prior to discharge, and the discharge does not contravene the designated water quality
standards.
❑ Concurs with issuance of the above pemut, provided the following conditions are met:
❑ Opposes the issuance of the above permit, based on reasons stated below, or attached:
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-161 7 - TELEPHONE [phone]/FAX [phone]
VISIT US ON THE WEB AT http://h2o.enr.state.nc.us/NPDES

�TA%1 RnTT *'% • T%AMT TWT
AFFIDAVIT OF PUBLICATION
Before the undersigned, a Notary Public of Chatham
;ounty North Carolina, duly commissioned and authorized to
,dminister oaths, affirmations, etc., personally appeared Debra
'eebbes, who, being duly sworn or affirmed, according to law,
loth depose and say that she is Billing Manager -Legal
advertising of The News and Observer a corporation
irganized and doing business under the Laws of the State of
forth Carolina, and publishing a newspaper known as The
Jews and Observer, in the City of Raleigh , Wake
;ounty and State aforesaid, the said newspaper in which such
iotice, paper, document, or legal advertisement was published
vas, at the time of each and every such publication, a
iwspaper meeting all of the requirements and qualifications
)f Section 1-597 of the General Statutes of North Carolina and
was a qualified newspaper within the meaning of Section 1-
i97 of the General Statutes of North Carolina, and that as such
.he makes this affidavit; that she is familiar with the books,
Iles and business of said corporation and by reference to the
Res of said publication the attached advertisement for NC
DIVISION OF WATER QUALITY was inserted in the
aforesaid newspaper on dates as follows: 02/01/08
Account Number. 73350833
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
04 day of FEBRUARY , 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 14a' of March 2009.

AM STEARNS & WHELER"
Environmental Engineers & Scientists
January 15, 2008
NC DENR—DIVISION OF WATER QUALITY
Point -Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Attn: Mr. Gil Vinzani
RE: NPDES PERMIT RENEWAL—RESBUMITTAL
14 I
JAN 1 7 2008 '
�f1lR • t7:V'R L'Al,llt
NCO085863 — AQUA NORTH CAROLINA, WATERFALL PLANTATION WTP
S&W JOB No. 61117.5
Dear Mr. Vinzani:
On behalf of AQUA North Carolina, Steams & Wheler hereby requests renewal of NPDES permit
number NCO085863 for the Waterfall Plantation WTP backwash discharge. This is a resubmittal
of the application package forwarded in July of 2007. The original submittal was returned
because, while the application provided a description of raw water and wastewater treatment, no
schematics were attached. Schematics have been included with this submittal. In addition, note
that no sludge is generated by the wastewater treatment process.
Thank you for your efforts with this renewal. If you have any questions or concerns, please do
not hesitate to contact me at [phone] or Mike Harwood at [phone].
Sincerely,
STEARNS & WHELER, PLLC
A1,44
Mark McIntire, P.E.
Project Manager
cc: Michael S. Harwood, P.E., Aqua North Carolina
JA60000W1 I 1 TWord Pm\Lcam\rc-renewal lever.doc
3126 Highwoods Boulevard, Suite 140
Raleigh, NC 27604
t. 919.790.6770
t. 919.790.9227
www.steams vheler.com
Connecticut • Maryland . Massachusetts • New York. North Carolina • Virginia

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 Resource
Division of Water Quality / NPDES Unit y
1617 Mail Service Center, Raleigh, NC 27699-1611 JArJ ( II
7 2008 I(
NPDES Permit Number INCO085863 --
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 box. Otherwise, please print or type.
1. Contact Information:
Owner Name
AQUA North Carolina, Inc.
Facility Name
Waterfall Plantation WTP
Mailing Address
202 McKenan Drive
City
Cary
State / Zip Code
NC, 27511
Telephone Number
[phone]
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 NCSR 1923
City
Wake Forest
State / Zip Code
NC, 27587
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 ORC)
Name AQUA North Carolina, Inc.
Mailing Address 202 McKenan Drive
City Cary
State / Zip Code NC, 27511
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private ® Public ❑
Page 1 of 3 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)
'v Green Sand Filter (No sodium recharge)
® Other Filtration (No greensand, no sodium recharge)
❑ Membrane Technology (RO, nanofiltration)
Check here if the treatment process also uses a water softener ❑
6. Description of source water(s) (i.e. groundwater, surface water)
Groundwater
7. Describe the treatment process(es) for the raw water:
Raw water is treated by an oxidation filter for the removal of iron and manganese. Water is
pumped from the well field, disinfected with chlorine, and delivered to an aeration and settling
tank. Settled water is further treated in a series of green sand oxidation filters prior to
distribution.
S. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Wastewater generated by this facility is filter backwash water. The facility utilize finished water to
backwash the greensand filter units. Backwash water is equalized in a tank, dechlorinated with
calcium thiosulfate, treated in a pressure filter. Effluent is discharged to Horse Creek.
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ❑ Intermittent
If intermittent:
Days per week discharge occurs: 3-4 Duration: +/- 2 hours
11. Plant design potable flowrate 0.05 MGD - maximum
Backwash or reject flow 0.004 - 0.005 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Horse Creek in the Neuse River Basin --
Page 2 of 3 C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
13. Please list all water treatment additives, including cleaning chemicals, that have the
potential to be discharged.
Residual chlorine in trace amounts after dechlorination.
14. Is this facility located on Indian country? (check one)
Yes ❑
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. - see attached
Solids Handling Plan - no solids are generated from this facility
e. �
7* PPY s�h�_er�&-� (, +LAJ0 s D ];J- UV I *she �� wr�s , ' 0�'11
16. NEW Applicants GA, C r• 4E-P -Xfa- bI
Information needed in addition to items 1-15. /2 p
New applicants must contact the NCDENR Customer Service Center.
Was the Customer Service Center contacted? ❑ Yes ❑ No
v Analyses of source water collected - this is an existing facility
Engineering Alternative Analysis - this is an existing facility
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.
Michael S. Harwood P E ' Engineer Manager
Printed name of Person Signing Title
Signature of
Date
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
monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable
by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both,
for a similar offense.)
Page 3 of 3 C-WTP 03105

t' Out Location �" yrl j'l�
Latitude: 35°58'49,> 11 . 1 y r `/ �I��, `, .�. 'L
Longitude:O78133 15 f
,1 14't1 � I,t,�
� Y�\U( -tee �I'r,
Ij
' J
1 r F
H
wy 98
. 1
I
� T
�ap
Waterfall Plantation
W WTP
NCOO85863
1> c
Wake County
0
Sub -Basin
03-04-01
Receiving
Horse Creek
Stream
Stream Class
WS-IV, NSW
J_%O� Stearns & Wheler, PLLC

Well Field
Approximately 0.05 mgd
(design)
Approximately 0.0045 mgd
(design)

Calcium lhiosulfate addition
for dechlormation
Backwash water
Approximately 0.0045
(design)
Approximately 0.0045 mgd
effluent to Horse Creek

FACT SHEET — NCO085863
REVISED: 1/23/08
Waterfall Plantation WTP
Date: 1/14/08 Owner: Aqua North Carolina, Inc., contact Michael Harwood
Operator: Ricky Scarborough Cell Phone: 625 - 2485
Existing Permit Expiration Date: 1/31/08
Renewal Permit Expiration Date: 1/31/13
Status:
Renewal application received 7/30/07 from consultant, Stearns & Wheler, PLLC, Mark McIntire,
P.E.
Alerted consultant and owner in November 2007 of application missing information but still had
not received by the end of December 2007. On December 28, 2007 sent formal certified mail to
consultant and owner that the renewal application was not acceptable and could not be
processed. Included a copy of the renewal application with a cover letter (return letter #2274)
citing the specific missing items.
Received 3 copies of amended renewal application 1/17/08 which addressed errors in
original application. Noted only two minor discrepancies, (1) applicant did not check the
Greensand Filter box and (2) solid waste is generated, able to disposed to landfill. I made
correction notations and initial on the 2 copies in the file, 3"d copy has been previously sent
to Regional Office. Attempted to alert Michael Harwood, designated Aqua contact, to
changes but he is no longer employed by Aqua.
Aqua became new owner in 2007 (former owner Heater Utilities). During existing permit cycle
TRC limit 28 µg/L had been imposed and owner added dechlorination.
Current permit requires monitoring only of calculated TN (2/year) and measured TP (2/year)
with no allocation. N-lbs/month calculation uses calculated monthly flow and latest calculated
TN (2/year). N-lbs/year is sum of 12 months calculated N-lbs/month. Calculated monthly flow is
based on sum of daily flow values on DMR, source of daily flows unknown (estimated,
recorder).
Current permit limits include TSS (quarterly), Settleable Solids (quarterly), TRC (weekly), and
Turbidity (quarterly). Other current permit monitoring items include Iron (quarterly), NO2+NO3
(2/year), TKN (2/year), and Flow instantaneous (quarterly). All samples are grab samples.
Fine assesses for permit violation in Oct 2004.
Process:
Well water is chlorinated as it enters an iron oxidation system. After an initial solid
removal step the chlorinated water passes through parallel greensand filters. The
backwash water from the greensand filters is dechlorinated as it enters a final sand filter
before being discharged. There are two points sources of solid type waste, both are
accepted as landfill materials, history of quantity and frequency of disposal unknown.
Facility is automated and has a part time certified operator, Ricky Scarborough. Other additives
are unknown but based on a conversation with Mr. Scarborough a filter aid may be used
seasonally, possibly a pH additive. Mr. Scarborough also stated the plant instrumentation
provides a backwash time stamp and records backwash water flow.
Page 1 of,00`Z

Receiving Steam:
Horse Creek, WS-IV NSW CA, Neuse River Basin
Renewal Permit:
WTP Guidelines for Greensand Filter apply to this renewal. No WET required. Discussed with
M. Templeton. No changes to TN, TP, NO2+NO3, TKN, Total Monthly Flow, N-lbs/month, N-
lbs/year requirements. No changes to A. (2) Calculation of Total Nitrogen Loads and no
additional support sections required. Maximum N-lbs per year since 2004 is 3.38lbs, 2007
estimated to be less than 1 lb.
Concerns/Changes:
FLOW monitoring, currently a total monthly value is provided on the DMR and is calculated
from daily values listed on the DMR. Monthly flow required to calculate monthly TN-lbs. WTP
guidelines require monthly limit using the monthly average daily flow. Current DMR reports a
calculated monthly average daily flow but it is calculated incorrectly, should NOT divide
monthly total by total days in the month unless discharge occurs everyday. Will address in draft
cover letter. Application states maximum discharge to be 0.005 MGD, current DMR data
supports this value so will adopt as permitted flow. Current permit requires quarterly
instantaneous flow monitoring which is redundant and will be removed.
TTS limit, currently in permit with quarterly measurements required. WTP guidelines require
daily and monthly average limits (the same limit value as in current permit) but with 2/month
measurements. Will change frequencies in renewal permit. Historical data review indicates
violation in 2004.
Settleable Solids limit, curreenly in permit with quarterly measurements required. WTP
guidelines do NOT require this measurement so it will be removed. Historical data review
indicates no violations.
Iron monitoring, currently in permit with quarterly measurements required. WTP guidelines
require the monitoring of iron but on a monthly bases. Will change frequencies in renewal
permit.
TRC limit, currently in permit with weekly measurements required. WTP guidelines require the
daily limit but with 2/month measurements. Will change frequencies in renewal permit.
Validated daily limit value (28µg/L) by recalculating IWC. Will modify footnote narrative to
reflect current status. Historical data review indicates no violations.
pH limit, NOT in current permit. WTP guidelines require a daily limit with 2/month
measurements. Will add daily limit ( 6.0 su — 9.0 su) with footnote in renewal permit.
Turbidity limit, currently in permit with quarterly measurements of upstream, downstream only
required. WTP guidelines do NOT require this measurement so it will be removed. Historical
data review indicates no violations.
Zinc, Manganese, or Fluoride monitoring (listed in WTP guidelines) not applicable at this time.
No traceable link to disposal of solids. Added special condition to address maintaining
documentation.
Page 2 of.XZ

DMR Data NC 0085863
Waterfall Plantation WWTP
—♦-00600 - Nitrogen, Total (as N) •t00665 - Phosphorus, Total (as P)
�7
J
t3) 0.4
E
0.3
0.2
0.1
0.
Oct- Jan- Apr- Aug- Nov- Feb- May- Sep- Dec- Mar-
03 04 04 04 04 05 05 05 05 06
Jul- Oct- Jan- Apr- Aug-
06 06 07 07 07
Date: 11 /16/07
pb: Ron Berry
2003: 3.38 N-Ibs I X Monthly TN +Monthly Flow 1 2007: 0.73 N-Ibs (est)
0.500 --------- ------ ----------------- ------ 0.1000
2004.2.20 N-Ibs 2006_1.87 N-Ibs
2005: 1.22 N-Ibs
0.400 ----------- ----------- ------------ -- - - -- - --- 0.0800
0.350 - -- ---------- --------------------- ------ - -- -- 0.0700
o 0.300 a2f Noo -*----N--
To-m--'---0--o0- - -�yC
'"
- -_JK- -t-0
-tD_
0.0600
a 'N_N N
on�o ------- ADO �0.250 )i0.0500
(7
t2t2!2 n
0.200�`__r_______0.0400
°--_-)K 0.0300 X N
O C000.0200
j- oo-ogoo o 000
0.050----- ------ -- ---- ------ -Y)C-0- 0.0100
0.000 0.0000
gc+999-qvovovoeov�oa9999 0n0uf0�n0�n0in0in0�n0in0�n0�n9999999999999oPoPoPoPqP o
mmm��m''�mmmm��wm�'mmwm�Mmmta MP='PoPomoaoa=omn�o
0.007
0.006
0.005
00.004
(7
20.003
0.002
1-4— Daily Flow Monthly Average Application Daily Flow Monthly Average
------------------------------------------------------------------
-----------------
------
---------
- -------------------
0.001 +--------------------- — -----_._....---- -------... _.-...---
0.000
no 0
0000��nog�00000OOOOgOOOOOOOOOOOOOOOOOOOOOOOOOOOO

DMR Data NC0085863
Waterfall Plantation WTP
—00530 - Solids, Total Suspended —TSS MAX Daiiy Dmft —TSS MAX Daily Monthly Average Limft
50---------------- ----- --- ---- ---- --------------- —
45
40 ---------- — --.-- — — —-------
35--------- ----- --- --- ---- --- -------------- -----
J 30
�0 25--------- --- -- --- --- -- — -- — -------------- — -----
E 20
15 --- --- - ----- ---- -----------------
10 - ------------------- ------ -----
5 — .. — --- --------------- — --
0
Oct- Jan- Apr- Aug- Nov- Feb- May- Sep- Dec- Mar- Jul- Oct- Jan- Apr- Aug-
03 04 04 04 04 05 05 05 05 06 06 06 07 07 07
2.
1.5
J
a 1.
e
0.5
0.
Oct-
03
01045 - Iron, Total (as Fe)
Date: 11 /16/07
pb:Ron Berry
Jan- Apr- Aug- Nov- Feb- May- Sep- Dec- Mar- Jul- Oct- Jan- Apr- Aug-
04 04 04 04 05 05 05 05 06 06 06 07 07 07
t50060 - Chlorine, Total Residual —TRC MAX Limit
30 ------ - --------------
25
20 —
J
a 15 •
a
10
5 41 II----H-
Oct- Jan- Apr- Aug- Nov- Feb- May- Sep- Dec- Mar- Jul-
03 04 04 04 04 05 05 05 05 06 06
Oct- Jan- Apr- Aug-
06 07 07 07

DMR Data NCO085863 Date: 1/16/08
Waterfall Plantation WTP pb:rdb
t Upstream Turbidity t Downstrean Turbidity —MAX Effect Limit
60.0----------------------------------------------------------
50.0
m
z40.0------------------ —----------------------------------------
30.0 ------------ ---------------- ------------------- — — ---- ---
a
a
- - ---- - ---
~ 10.0 ---- --- ---- ----- - ---- -------
0.0
i
r
l7
(7
M
M
R
a
N
O
N
10
t0
c0
f0
f0
n
r n
O
O
O
O
0
0
O
O
O
O
O
O
O
O
O
O
0
O
O O
$
m
n
a
a
5 0
no
--*—Daily Reading —MAX Daily Limit
0.12 r----------------------------------------------- -----------
0.1
E
H 0.08
v
0
1n 0.06
d
m
CO
0.04
z
y 0.02
0 TrTT
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Waterfall Plantation WTP
NCO085863
Prepared Bv: Ron Berry
Enter s7Q10(cfs):
Enter w7Q10 (cfs'
Total Residual Chlorine
7010(CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (I
IWC (%)
Allowable Conc. (ug/1)
0.800
2.000
0.8
0.005
0.00775
17.0
0
0.96
28
Fecal Limit NOT REQUIRED
(If OF>331; Monitor)
(If DF <331; Limit)
Dilution Factor (DF) -
Servor/Current Versions/IWC
Assume upstream TRC level = 0
Assume upstream Fecal level = 0
Check Box if WTP Facility 0
Ammonia (NI-13 as N)
(summer)
7Q10(CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL
IWC (%)
Allowable Conc. (mg/1)
Ammonia (NH3 as N)
(winter)
7010(CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL
IWC (%)
Allowable Conc. (mg/1)
0.8
0.005
0.00775
2.0
0.220
0.96
NOT REQUIRED
2
0.005
0.00775
4.0
0.220
0.39
NOT REQUIRED
11 /26/2007

Low -flow characteristics for Horse Creek near Wake Forest ... Re: Req...
Subject: Low -flow characteristics for Horse Creek near Wake Forest ... Re: Request Stream Data
From: John C Weaver <jcweaver@usgs. gov> k�
Date: Mon, 19 Nov 2007 17:14:22 -0500 (� 7✓
To: Ron Berry <[e-mail]> t (� <S t J �f
CC: John C Weaver <[e-mail]>
0 2
Ron,
In response to your inquiry about the low -flow characteristics (annual and winter 7Q10) for a location on
Horse Creek near Wake Forest in Wake County, the following information is provided:.
A check of the low -flow files here at the USGS North Carolina Water Science Center does not indicate any
previous determination of low -flow characteristics for your point of interest on Horse Creek. However,
there are previous low -flow determinations for other locations on Horse Creek (determined in 1972 and
1982). The location closest to your point of interest was Horse Creek near Wake Forest (station id
0208717450, drainage area 15.3 sgmi, at Secondary Road 1922, now inundated by Falls Lake). In the
absence of data, estimates of low -flow characteristics can be determined by assessing the range of
low -flow yields (expressed as flow per square mile drainage area, or cfsm) at nearby sites where values
have been previously estimated. The annual 7Q10 low -flow yield used in the previous estimate was 0.189
cfsm, based on the 7Q10 yields at some nearby streams.
The "most recent" low -flow information published for this area is USGS Water -Resources Investigations
Report 98-4135, "Low -flow characteristics and discharge profiles for selected streams in the Neuse River
basin, North Carolina" (Weaver, 1998). This report provides low -flow characteristics (based on data
through 1996) for USGS continuous- and partial -record sites in the Neuse River basin where sufficient
data is available for analyses. However, the report does not provide statistical relations for estimating
low -flow characteristics at ungaged locations.
There is no online version of the report available, but ordering information for the report is available at
hftp://pubs.er.usgs.gov/usgspubs/wri/wri984l35.
In Table 7 of this report, there are 3 nearby partial -record sites on Horse and Richland Creeks for which
7Q10 discharge estimates are provided. Expressing these estimates as low -flow yields provides some
indication of the yield range that could potentially be applicable to your location. The annual 7Q10 low -flow
yields at these sites range from 0.07 to 0.17 (average at about 0.10 cfsm). Similarly, the winter 7Q10
low -flow yields range from 0.18 to about 0.28 (average at about 0.22 cfsm). The annual 7Q10 low -flow
yield at the Horse Creek partial -record site is 0.17 cfsm, much closer to the yield used in the previous
estimate.
No drainage area is listed in our files for your point of interest, but a "quick-n-dirty" delineation of the basin
using mapping software indicates the drainage area for your point of interest on Horse Creek is between
11 and 12 sgmi. Applying a drainage area of 11.5 sgmi to the above yield ranges results in an annual
7Q10 discharge ranging from 0.8 to 2.0 cfs and winter 7Q10 discharge ranging from 2.0 to 3.2 cfs.
Please be aware that data available at the 3 nearby sites are records that generally date from the 1950's
through the mid 1970's. Additional data needs to be collected and analyzed to consider whether the
characteristics provided above are reflective of current stream characteristics.
Hope this information is helpful.
1 of 3 11/21/2007 8:07 AM

Low -flow characteristics for Horse Creek near Wake Forest ... Re: Req...
Thank you.
Curtis Weaver
J. Curtis Weaver, Hydrologist, PE
USGS North Carolina Water Science Center
3916 Sunset Ridge Road
Raleigh, NC 27607
Telephone: [phone] // Fax: [phone]
E-mail address -- [e-mail]
Internet address -- http://nc.water.usgs.gov/
Ron Berry <[e-mail]>
11 /19/2007 01:49 PM
To John C Weaver <[e-mail]>
cc
Subject Re: Request Stream Data
Curtis,
The point of discharge into Horse Creek is define as Lat:35158149"
N,Lon:7803311511 W. The other location I can provide "is near NC1923 in
the Wake Forest area". If you need more information let me know.
Ron
John C Weaver wrote:
> Ron,
> Where specifically on Horse Creek are you interested in the low -flow
> statistics?
> A quick check of my records shows a Horse Creek somewhere in the Wake
> Forest area. If this is not the Horse Creek of interest, please also
> provide some information on the location of Horse Creek.
> JCWeaver
> J. Curtis Weaver, Hydrologist, PE
> USGS North Carolina Water Science Center
> 3916 Sunset Ridge Road
> Raleigh, NC 27607
> Telephone: [phone] // Fax: [phone]
> E-mail address -- jcweaverousgs.gov
> Internet address -- http://nc.water.usgs.gov/
> *Ron Berry <[e-mail]>*
2 of 3 11/21/2007 8:07 AM

PHONE CONVERSATION: Mark McIntire, Stearns & Wheeler
Permit: AQUA North Carolina NC0085863
11 /5/2007 9 PM
Talked to Mark need missing flow schematic. Stated it took a long time to get info from
AQUA. He would convey request to AQUA.
jt
FOLLOW UP PHONE CALL: Michael*wood, AQUA North Carolina NC0085863
11/28/07 11 PM
Note: Prior to making call discovered application stated "See attachment" for flow
schematic. This may means we are missing a page from the original application. Decide
to call AQUA direct and see if they could send missing page, if applicable.
Left vm to return my call. Also, asked for missing attachment, flow schematic.

PHONE CONVERSATION LOG NCO085863
Date: 11/2007
Contact: Mark McIntire, consultant Aqua
Talked about missing flow schematic, would pass long to Aqua. Not very optimistic
about getting anything from Aqua anytime soon.
Date: 11/28/2007
Contact: Michael Hardwood, Aqua North Carolina, Inc. [phone]
Left message asking for missing attachment listed on application and for call back. Need
to get a copy of the missing flow schematic.

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
DA..:., Tr��AM11fA�fA1• iA fd%v avnaAitPf1 nPrmit rp-nP.wal
Reviewer/Date
c / D
Permit Number
A16
Facilit Name
e
Basin Name/Sub-basin number
01 6 Y o
Receiving Stream
W� -dAt S *
Stream Classification in Permit
Does permit need NH3 limits?
Does permit need TRC limits?
Does permit need Enteroccoci limit?
Does permit have toxicity testing?
r
Does permit have Special Conditions?
Does permit have instream monitoring?
XiT
Is the stream impaired (on 303(d) list)?
NO
Any obvious com fiance concerns?
AM
Any permit mods since lastpermit?
Existing ex iration date
New ex iration date
New rmit effective date
A/I:�nnllar�an»o irnmwtatnl'e
..-,,t.%IW A KAW
M�A - i
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
'ons (such as EAA, Wastewater Management Plan),
Conventional WTP, (d) listed, toxicity testing, instream monitoring,
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 > 0.5 MGD (requires full Fact Sheet)
• Permits determined by Basin Coordinator to be outside expedited process
TR Version 9M2007
4