NC0085863_Permit Issuance_20130517

r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Pat McCrory Charles Wakild, P.E.
Governor Director
May 17, 2013
Mr. Thomas J. Roberts, President
Aqua North Carolina, Inc.
202 MacKenan Court
Cary, NC 27511
Subject: Issuance of NPDES Permit NCO085863
Aqua North Carolina, Inc. — Waterfall Plantation WTP
Wake County
Dear Mr. Roberts:
John E. Skvarla, III
Secretary
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 one significant change to its terms from those found in the draft permit sent to
you on March 27, 2013. This change is:
e Reporting of Total Kjeldahl Nitrogen and Nitrites + Nitrates concentrations have been removed from
the permit.
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.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Ofie
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 NorthCarolina
Phone: [phone] FAX: [phone]
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer v �J

Mr. Thomas J. Roberts
NC0085863 Permit Renewal 2013
p. 2
If you have any questions concerning this permit, please contact Bob Sledge at telephone number (919)
807-6398, or via e-mail at [e-mail].
S' y, (/
2
Charles Wakild, P.E. i..
cc: Central Files
Raleigh Regional Office/Surface Water Protection Section
NPDES File

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 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,
Aqua North Carolina, Inc.
is hereby authorized to discharge wastewater from a facility located at the
Waterfall Plantation WTP
Off Mica Mine Lane
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 July 1, 2013.
This permit and authorization to discharge shall expire at midnight on January 31, 2018.
Signed this day May 17, 2013.
22C17
Chp,rWs Wakild, P.E., Director
ision of Water Quality
By Authority of the Environmental Management Commission

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 discharge wastewater from a Greensand filter water treatment plant, with additional
wastewater treatment provided by a tablet dechlorinator and a final sand bed filter prior to
discharge. This facility is located at the Waterfall Plantation WTP, off Mica Mine Lane, inWake
Forest, in. Wake County.
2. Discharge from said treatment works at the location specified on the attached map into Horse
Creek, classified WS-1V NSW waters in the Neuse River Basin.

Permit NCO085863
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Aqua North Carolina, Inc.
Facility
Waterfall Plantation WTP
Location
Quad: D24NE Wake Forest Receiving Stream: Horse Creek
Latitude:350 58' 49" N Subbasin: 030401
Longitude: 78' 33' 15" W Stream Class: WS IV, NSW
A 1 ,../
North V oI Lh
NPDES Permit NCO085863
Wake Count

Permit NCO085863
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
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
and monitored by the Permittee as specified below:
-� LU�ENT~;CHARACT,E sr," C
LIL IITS`'
O�IIT,OR RE'Q 1REMENTS
-=�' �' : � Co �e=
Raramefer
771 o I
�_ Avers a
Daily
Mazim.`um
Measurement
F uenc�
�Sa p, a
e:
Si
�Locationti
Flow 50050
2/Month
Estimatel
Effluent
Total Suspended Solids (TSS) C0310
30.0 mg/L
45.0 mg/L
2/Month
Grab
Effluent
pH 00400
> 6.0 and < 9.0 standard
units
2/Month
Grab
Effluent
Total Residual Chlorine2 50060
28 Ng/L
2/Month
Grab
Effluent
Turbidity 00070
Monitor & Report
2/Month
Grab
Effluent
Total Iron 01045
Monitor & Report
Quarterly
Grab
Effluent
Total Manganese 01055
Monitor & Report
Quarterly
Grab
Effluent
Total Nitrogen (TN)3 C0600
Monitor & Report (mg/L)
Semi-annually
Calculated
Effluent
Total Phosphorus (TP) C0665
Monitor & Report (mg/L)
Semi-annually
Grab
Effluent
Footnotes:
1. Daily flow estimates are determined by the number and duration of backwash/rinse events.
2. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the
permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory (including field certified), even if these values fall below 50 µg/L.
3. 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.

A-•:'
NCDEN
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Pat McCrory Charles Wakild, P.E.
Governor Director
March 27, 2013
MEMORANDUM
To: Michael Douglas, P.E.
NC DENR / DWR / PWS Regional Engineer
Raleigh Regional Office
From: Bob Sledge
Compliance & Expedited Permitting Unit
Subject: Review of Draft NPDES Permit NCO085863
Aqua North Carolina, Inc. — Waterfall Plantation WTP
Wake County
John E. Skvarla, III
Secretary
Please indicate below your agency's position or viewpoint on the draft permit and return this form by
May 3, 2013. If you have any questions on the draft permit, please contact me at [phone] or via
e-mail at [e-mail].
RESPONSE: (Check one)
Fq
Concur with the issuance of this permit 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.
F-1 Concurs with issuance of the above permit, provided the following conditions are met:
1-1 Opposes the issuance of the above permit, based on reasons stated below, or attached:
Signed: WL. D, P.E. Date:04 02 13
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 one
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 NorthCarolina
Phone: [phone] FAX: [phone]
Internet: www.ncwaterquality.org Natulullaff
An Equal OpportuNty 1 Aftirmative Action Empbyer

Sledge, Bob
From: Zhang, Cheng
Sent: Tuesday, April 02. 2013 9:22 AM
To: Wiggins, Mack; Smith, Danny: Sledge, Bob; Douglas, Michael
Subject: RE: Draft Permit NC0085863 - Aqua NC Waterfall Plantation WTP
I did a quick file review of the subject facility/permit. The information in BIMS is correct, the facility has been compliant
in the last permit cycle. RRO recommends permit be renewed.
Chen Zhan
� g 8
Environmental Senior Specialist
NCDENR- Raleigh Regional Office
Surface Water Protection
1628 Mail Service Center
Raleigh, NC 27699-1628
Office [phone]
Fax [phone]
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
.T.
From: Wiggins, Mack
Sent: Thursday, March 28, 2013 9:33 PM
j To: Zhang, Cheng; Smith, Danny; Wiggins, Mack; Sledge, Bob; Douglas, Michael
Subject: FW: Draft Permit NC0085863 - Aqua NC Waterfall Plantation WTP
From: Wiggins, Mack
Sent: Thursday, March 28, 2013 5:20 PM
To: Douglas, Michael; Sledge, Bob; Wiggins, Mack
Subject: RE: Draft Permit NC0085863 - Aqua NC Waterfall Plantation WTP
Michael, Bob this one is for Cheng to comment. 1 will forward this to him, Mack
From: Douglas, Michael
Sent: Thursday, March 28, 2013 3:52 PM
To: Sledge, Bob
Cc: Smith, Danny; Wiggins, Mack
Subject: RE: Draft Permit NC0085863 - Aqua NC Waterfall Plantation WTP
Is there a Staff Report for this permit?
Michael
..............
From: Sledge, Bob
Sent: Wednesday, March 27, 2013 7:45 AM
To: Douglas, Michael
Subject: Draft Permit NC0085863 - Aqua NC Waterfall Plantation WTP
j Hi Michael,
Attached please find documents associated with the renewal of a NPDES permit for a Greensand fitter WTP serving the
Waterfall Plantation subdivision in Wake Forest. The discharge of backwash wastewater is to Horse Creek, class WS-IV
waters. At your convenience, would you please look over the documents and provide your recommendations regarding
the reissuance of the permit.
Perhaps due to the minor nature of the discharge, I do not have a staff report to provide you regarding this facility.
Please call or reply If you have any questions.
Bob
Bob Sledge
Environmental Specialist
Compliance & Expedited Permits Unit
NC Division of Water Quality
bob-sle(IL,e(@Acdenr.gov
[phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
1 1 2

AFFIDAVIT OF PUBLICATION
STATE OF NORTH CAROLINA
COUNTY OF WAKE
Advertiser Name: NCDENR/ DWQ/ POINT SOURCE
Address: 1617 MAIL SERVICE CENTER PROTECTION SECTION/
RALEIGH, NC 276991617
Before the undersigned, a Notary Public of Wake
County North Carolina, duly commissioned and
authorized to administer oaths, affirmations, etc.,
personally appeared DEBORAH MAHAFFEY, who
being duly sworn or affirmed, according to law, doth
depose and say that he or she is Accounts
Receivable Specialist of The News & Observer a
corporation organized and doing business under
the Laws of the State of North Carolina, and
publishing a newspaper known as The News &
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 he or she makes this affidavit; and
is familiar with the books, files and business of said
corporation and by reference to the files of said
publication the attached advertisement for '90''\
NCDENR/ DWQ/ POINT SOURCE was inserted in '
the aforesaid newspaper on dates as follows: = NotorY Public
03/28/2013
DEBORAH MAHAFFEY, Accounts R wable Specialist
Wake County, North Carolina
Wake CountY =
'.20
'/,,'*1111``jIAaO�'P\,
Ad Number
0000441829
Public Notice
. North Carolina ErMnonmental
ffmggenmtCammissiory NPDES Unit
1617Mall ServiceCenter
Raleigh, NC D699-1617
NoticeaF lMuv'I to issuea
NPDES Wastewater Permit
NBO: Mach 28, 2013
Sworn to and subscribed before me
This 29th day of March, 2013
My Commission Expires:
Notary Signature

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
This form must be completed by Permit Writers for all expedited permits which do not require
full Fact Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile
home parks, etc) that can be administratively renewed with minor changes, but can include
facilities with more complex issues (Special Conditions, 303(d) listed water, toxicity testing,
instream monitoring, compliance concerns).
Basic Information for Expedited Permit Renewals
Permit Writer/Date
Bob Sledge 3/15/2013
Permit Number
NCO085863
Facility Name
Aqua NC — Waterfall Plantation WTP
Basin Name/Sub-basin number
Neuse 03-04-01
Receiving Stream
Horse Creek
Stream Classification in Permit
WS-IV; NSW
Does permit need Daily Max NH3 limits?
No
Does permit need TRC limits/language?
Existing
Does permit have toxicity testing?
No
Does permit have Special Conditions?
Removed nutrient loading condition and solid
waste records condition
Does permit have instream monitoring?
No
Is the stream impaired on 303 d list)?
No
Any obvious compliance concerns?
No
Any permit mods since last permit?
2/8/2012 modification implemented parts of
2009 WTP strategy. No hard copy in file
Current expiration date
04/30/2013
New expiration date
04/30/2018
Comments received on Draft Permit?
The permit was drafted in accordance with the Greensand Filter section of the 2009 WTP
permitting guidance. Changes to the existing permit included:
• Monitoring for Flow was increased to twice per month.
• Monitoring for Manganese was added to the permit with a quarterly monitoring
frequency.
• Monitoring for Turbidity was added with monitoring frequency of twice per month.
• Reporting of nutrient loading was removed from the permit.
• Footnotes were updated.
• Conditions A. (2.) regarding nutrient loading calculation, and A. (3.) regarding solid
waste records documentation were removed. The facility's sludge management plan
is sufficient. Removing the condition makes it consistent with other, almost identical
permits issued to Aqua NC.

Aqua North Carolina, Inc.
202 MacKenan Court
Cary, NC 27511
September 27, 2012
Mrs. Dina Sprinkle
NC DENR/DWQ/POINT Source Branch
1617 Mail Service Center
Raleigh, NC 27699-167
Re: Waterfall Plantation WTP
Permit Renewal Application
Permit #: NC0085863
Wake County
Dear Mrs. Sprinkle,
T: 919.467.8712
F: 919.460.1788
www.aquanorthcarolina.com
ROWE
D�
OCT
0E 2012
Enclosed you'll find our application for renewal of our NPDES Permit and required
documentation.
Aqua North Carolina, Inc. requests the renewal of the current limitations for this
facility as recorded on the previous permit set to expire on January 31, 2013. If
you have any questions feel free to contact me at [phone], extension
57238.
Sincerely
cfif j
Michael A. Melton
Regional Manager of Compliance
Aqua North Carolina, Inc.
mhe/MAM
Enclosures
cc: Tom Roberts, President and COO, Aqua NC
An Aqua America Company

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 INCO086863
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 MACKENAN COURT
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 MACKENAN COURT
City CARY
State / Zip Code NC/27511
Telephone Number [phone]
Fax Number [phone]
Page 1 of 4 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
4. Ownership Status:
Federal ❑ State ❑ Private ® Public ❑
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, 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:
- Ortho Phosphate (OP37)
- Chlorination (sodium hypochlorite)
- Iron and Manganese Filter
S. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
The iron and manganese residue in the backwash water is captured on a sand filter. The
iron and manganese residue is periodically raked from the top of the sand filter and
disposed of in a landfill.
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: 4 Duration: 30 minutes
11. Plant design potable flowrate .005 MGD
Backwash or reject flow .003 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfali, including
latitude and longitudeft
Horse Creek: Latitude 35 degrees 58 feet 49 inches, Longitude 78 degrees 33 feet 15 inches
Page 2 of 4 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
Alum / aluminum sulfate Yes No
Iron sulfate / ferrous sulfate Yes No
Fluoride Yes oNo
Ammonia nitrogen / Chloramines Yes No
Zinc -orthophosphate or sweetwater CP1236 Yes No
List any other additives below:
Chlorine (sodium hypochlorite)
Ortho Phosphate
14. Is this facility located on Indian country? (check one)
Yes ❑
• �I
15. Additional Information:
Provide a schematic of flow through the facility, in
flow volumes at all points in
the water treatment process. The plan should show the point[s] of addition for
chemicals and all discharges routed to an outfall [including stormwater].
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
Analyses of source water collected
v 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.
Page 3 of 4 Version 5/2412

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AQUA
"%%" North Carolina.
Aqua North Carolina, Inc. T: 919.467.8712
202 Mackenan Ct F. M."6.1585
Cary, NC 27511 www.aquanorthcarolina.com
SLUDGE MANAGEMENT PLAN
For
Aqua North Carolina, Ine.
No sludge will be treated on any wastewater treatment plant site operated
by Aqua N.C., Central'Division. '
Where practical, sludge removed from a Aqua N.C., Central Division
facility will be transported via a contract hauler to another. Aqua N.C.,
Central. Division facility for the purpose of "seeding" a new or under loaded
plant.
Unusable (or "dead") sludge will be removed by a contract hauler and
properly disposed of in accordance with NCGS 143-216.1. Contract
haulers used by Aqua N.C., Central Division will be required to report the
quantity of sludge transported and identify the location of the proposed
disposal site if the sludge is not taken to an existing plant operated by Aqua
N.C., Central Division. Aqua N.C., Central Division has not entered into
any agreement to accept sludge into its facilities from plants not owned by
them.
Aqua N.C., Central Division will keep records on the quantity of sludge
removed from each facility, the name of the contract hauler, and the
destination of the sludge (whether used in another plant or disposed of).
The information will be kept on file and will be made available to any
regulatory agency having jurisdiction over sludge treatment or disposal.
Aqua N.C., Central Division includes facilities under the jurisdiction of the
Raleigh, Wilmington and Fayetteville Regional Offices.