WQ0029475_Final Permit_20150515

Z*A*
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
May 15, 2015
Thomas J. Roberts — President
Aqua North Carolina, Inc.
202 MacKenan Court
Cary, North Carolina 27511
Dear Mr. Roberts:
Donald R. van der Vaart
Subject: Permit No. WQ0029475
Sterling Farms WWTF
Wastewater Irrigation System
(Reclaimed Water Standards)
Onslow County
Secretary
In accordance with your permit renewal request received January 22, 2015, we are forwarding
herewith Permit No. WQ0029475 dated May 15, 2015, to Aqua North Carolina, Inc. for the continued
operation of the subject wastewater treatment and irrigation facilities.
This permit shall be effective from the date of issuance until April 30, 2020, and shall be subject
to the conditions and limitations as specified therein. Please pay particular attention to the monitoring
requirements listed in Attachments A, B and C for they may differ from the previous permit issuance.
Failure to establish an adequate system for collecting and maintaining the required operational
information shall result in future compliance problems.
For your convenience, customized electronic copies of your facility's NDMR and NDAR-1
reporting forms are available for download at: htt-o://portal.ncdenr.org/web/wq/gps/lau/roortin .
Please note the following permit conditions are new since the last permit issuance:
➢ Condition IV.10(c) —Regarding record keeping of turbidimeter calibration.
Attachment A, footnote #3 -- Regarding requirements for reporting of turbidity.
If any parts, requirements or limitations contained in this permit are unacceptable, the Permittee
has the right to request an adjudicatory hearing upon written request within 30 days following receipt of
this permit. This request shall 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 at 6714 Mail
Service Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and
binding.
Non -Discharge Permitting Unit
1617 Dail Service Center, Raleigh, North Carolina 27699-1617
Phone: 9IM07-64641Internet: httg:llportal.ncdenr.oralwe4MM
An Equal Opportunity lAffirmativeAction Employer- Made in part with recycled paper

Mr. Roberts
May 15, 2015
Page 2 of 2
If you need additional information concerning this permit, please contact Chonticha McDaniel at
[phone] or [e-mail].
Sincerely,
�,,. S. Jay Zimmerman, Director
Division of Water Resources
cc: Onslow County Health Department (Electronic Copy)
Wilmington Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Digital Permit Archive (Electronic Copy)
Central Files

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
WASTEWATER IRRIGATION SYSTEM PERMIT (RECLAIMED WATER STANDARDS)
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules and Regulations
PERMISSION IS HEREBY GRANTED TO
Aqua North Carolina, Inc.
Onslow County
FOR THE
continued operation of a 186,000 gallon per day (GPD) wastewater treatment and irrigation facility
consisting of:
a headwork flow meter, two Contec fine screens with 2 millimeter (mm) mesh; a 67,000 gallon aerated
flow equalization basin with coarse air diffusers and two 770 gallon per minute (GPM) pumps rated at 20
feet of total dynamic head (TDH); a flow splitter box; an influent flow meter; two 23,250 gallon anoxic
basins each with a submersible mixer; two 31,645 gallon aeration basins each with fine air diffusers, a
770 GPM transfer pump rated at 21 feet of TDH and a 770 GPM denitrification pump rated at 21 feet of
TDH; two membrane tanks each with two membrane cassettes served by two permeate / back -pulse
pumps; a 72,000 gallon aerated sludge holding basin with coarse air diffusers, a sludge feed flow meter
and an air lift decant line; a menthol storage tank and two chemical feed pumps; a Sodium Hydroxide
(NaOH) storage and chemical feed system; a pH monitoring system; an effluent flow meter; two
ultraviolet (UV) disinfection units with eight lamps each; a turbidimeter; a 300 kilowatt (KW) auxiliary
generator; two 350 cubic feet per minute (CFM) blowers serving the flow equalization basin and sludge
holding basin; two 645 CFM blowers serving the aeration basins; two 449 CFM blowers serving the
membrane cassettes; a 12.4 million gallon (MG) storage pond with a 530 GPM irrigation pump; a sub -
drain within the wetted area; and all associated piping, valves and appurtenances; and
continued operation of Phase I - 135,339 GPD rated irrigation system consisting of 17 irrigation zones
(i.e., Fields 4 through 8, and Fields 13 through 24) with a total wetted area of 37.22 acres; and all
associated piping, valves and appurtenances; and
construction and operation of Phase II - 50,943 GPD rated irrigation system consisting of seven irrigation
zones (i.e., Fields 1 through 3, and Fields 9 through 12) with a total wetted area of 14.01 acres resulting in
a cumulative (Phase I and II) wetted area of 51.23 acres and disposal capacity of 186,282 GPD, which
shall be constructed when the Sterling Farms WWTF effluent flow (Attachment A — PPI 001) reaches
80% of 135,000 GPD; and all associated piping, valves and appurtenances;
to serve the Sterling Farms WWTF, with no discharge of wastes to surface waters, pursuant to the
application received January 22, 2015, and in conformity with the project plans, specifications, and other
supporting data subsequently filed and approved by the Department of Environment and Natural
Resources and considered a part of this permit.
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This permit shall be effective from the date of issuance until April 30, 2020, and shall be subject to the
following specified conditions and limitations:
I. SCHEDULES
1. If at any time the Permittee decides to enter an agreement to accept wastewater effluent from Morton
Elementary, the Permittee shall submit a permit modification package to the Division requesting
permission to add the Morton Elementary effluent source, as well as include a copy of the proposed
agreement. [ 15A NCAC 02T A 106]
2. Upon completion of construction and prior to operation of this permitted facility, a certification
(attached) shall be submitted from a licensed North Carolina Professional Engineer certifying that the
permitted facility has been installed in accordance with this permit, Division approved plans and
specifications, and other supporting documentation, including the location of all monitoring wells as
applicable. If this _project is to be completed in phasesand partially certified, the Permittee shall
retain the responsibility to track further construction approved under the same permit, and shall
provide a final certificate of com letp ion once the entire project has been completed, Mail the
Certification to the Division of Water Resources, Water Quality Permitting Section, 1617 Mail
Service Center, Raleigh, NC 27699-1617. [15A NCAC 02T .0116(a)]
3. The Wilmington Regional Office, telephone number [phone], shall be notified at least 48
hours in advance (excluding weekends and holidays) of operation of the installed facilities such that
an in -place inspection can be made. Notification to the regional supervisor shall be made from 8:00
a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. [15A NCAC 02T
.0108(b)(2)]
4. No later than six months prior to the expiration of this permit, the Permittee shall request renewal of
this permit on official Division forms. Upon receipt of the request, the Division will review the
adequacy of the facilities described therein, and if warranted, will renew the permit for such period of
time and under such conditions and limitations as it may deem appropriate. Please note Rule 15A
NCAC 02T .0105(d) requires an updated site map to be submitted with the permit renewal
application.
5. If the subject wastewater treatment or irrigation facilities are in noncompliance with the terms and
conditions of this permit, governing statutes or regulations, the subject facilities shall be connected to
an operational publicly owned wastewater collection system within 180 days of its availability. Prior
to the initiation of these connection activities, appropriate Division approval shall be received. [15A
NCAC 02H ,0404(e)]
Il. PERFORMANCE STANDARDS
The subject non -discharge facilities shall be effectively maintained and operated at all times so there
is no discharge to surface waters, nor any contravention of groundwater or surface water standards.
In the event the facilities fail to perform satisfactorily, including the creation of nuisance conditions
due to improper operation and maintenance, or failure of the irrigation areas to adequately assimilate
the effluent, the Permittee shall take immediate corrective actions including Division required actions,
such as the construction of additional or replacement wastewater treatment or irrigation facilities.
[G.S. 143-215.1, 143-213.3(a)]
2. This permit shall not relieve the Permittee of their responsibility for damages to groundwater or
surface water resulting from the operation of this facility. [15A NCAC 02B .0200, 02I., .0100]
3. All wells constructed for purposes of groundwater monitoring shall be constructed in accordance with
15A NCAC 02C .0108 (Standards of Construction for Wells Other than Water Supply), and any other
jurisdictional laws and regulations pertaining to well construction. [15A NCAC 02C .0108]
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4. Effluent quality shall not exceed the limitations specified in Attachment A. [15A NCAC 02T
.0108(b)(1)]
5. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in
Attachment B. [15A NCAC 02T .0505(c) and 02T .0505(n)]
6. The irrigation system shall be connected to a rain or moisture sensor, which shall indicate when
effluent application is not appropriate in accordance with Conditions IIIA. and III.5. of this permit.
[15A NCAC 02T .0108(b)(1)]
7. A usable green area shall be maintained for effluent disposal. The green area shall have the capability
of accommodating the facility's average daily flow without exceeding the green area loading rates. A
"green area" is defined as an area suitable for waste disposal, either in its natural state or which has
been modified by planting a vegetative cover of grasses or low growing shrubbery. [ 15A NCAC 02H
.0404(g)(7)]
8. The compliance and review boundaries are established at the property boundaries. Any exceedance
of standards at the compliance or review boundary shall require action in accordance with 15A
NCAC 02L .0106. [15A NCAC 02L .0106]
9. The Permittee shall apply for a permit modification to establish a new compliance boundary prior to
any sale or transfer of property affecting a compliance boundary. [15A NCAC 02L .0107(c)]
10. In accordance with 15A NCAC 02L .0107(d), no wells, excluding Division approved monitoring
wells, shall be constructed within the compliance boundary except as provided for in 15A NCAC 02L
.0107(g). [ 15A NCAC 02L .0107]
11. Except as provided for in 15A NCAC 02L .0107(g), the Permittee shall ensure any landowner who is
not the Permittee and owns land within the compliance boundary shall execute and file with the
Onslow County Register of Deeds an easement running with the land containing the following items:
a. A notice of the permit and number or other description as allowed in 15A NCAC 02L .0107(f)(1);
b. Prohibits construction and operation of water supply wells within the compliance boundary; and
c. Reserves the right of the Permittee or the State to enter the property within the compliance
boundary for purposes related to the permit.
The Director may terminate the easement when its purpose has been fulfilled or is no longer needed.
[I 5A NCAC 02L .0107(f)]
12. The facilities permitted herein, shall be constructed according to the following setbacks:
a. The setbacks for reclaimed utilization sites permitted prior to September 1, 2006 shall be as
follows (all distances in feet):
L Surface waters not classified SA: 25
ii. Surface waters classified SA: 100
iii. Any well with exception of monitoring wells: 100
iv. All groundwater lowering drains/ditches: 25
[15A NCAC 02H .02196), 15A NCAC 02H .0404(g)]
b. The setbacks for storage and treatment units permitted prior to September 1, 2006 shall be as
follows (all distances in feet):
i. Any well with exception of monitoring wells: 100
ii. Any property line: 50
[15A NCAC 02H .02190)]
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III. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times. The facilities shall be effectively
maintained and operated as a non -discharge system to prevent the discharge of any wastewater
resulting from the operation of this facility. The Permittee shall maintain an Operation and
Maintenance Plan, which at a minimum shall include operational functions, maintenance schedules,
safety measures and a spill response plan. [15A NCAC 02T .0507]
2. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the subject non -discharge facilities, in accordance with 15A NCAC 08G .0200 the
Permittee shall designate and employ a certified operator in responsible charge (ORC) and one or
more certified operator(s) as back-up ORC(s). The ORC or their back-up shall visit the facilities in
accordance with 15A NCAC 08G .0200, and shall comply with all other conditions specified in the
previously cited rules. [15A NCAC 02T .0117]
3. A suitable year round vegetative cover shall be maintained at all times, such that crop health is
optimized, allows for even distribution of effluent and allows inspection of the irrigation system.
[15A NCAC 02T .0108(b)(1)]
4. Adequate measures shall be taken to prevent effluent ponding in or runoff from the irrigation sites
listed in Attachment B. [15A NCAC 02T .0108(b)(1)]
5. Irrigation shall not be performed during inclement weather or when the ground is in a condition that
will cause ponding or runoff. [15A NCAC 02T .0108(b)(1)]
6. All irrigation equipment shall be tested and calibrated at least once per permit cycle. Calibration
records shall be maintained at the facility for a period of no less than five years, and shall be made
available to the Division upon request. [15A NCAC 02T .0108(b)(1)]
7. Only effluent from Sterling Farms WWTF shall be irrigated on the sites listed in Attachment B. [G.S.
143-215.1]
S. An automatically activated standby power source capable of powering all essential treatment units
shall be on site and operational at all times. If a generator is employed as an alternate power supply,
it shall be tested weekly by interrupting the primary power source. [ 15A NCAC 02H .0404(g)(3)]
9. No automobiles or machinery shall be allowed on the irrigation sites except during equipment
installation or while maintenance is being performed. [15A NCAC 02T ,0108(b)(1)]
10. Public access to the irrigation sites and wastewater treatment facilities shall be prohibited. [15A
NCAC 02T .0505(q)]
11. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in
accordance with 15A NCAC 02T .1100. The Permittee shall maintain a residual management plan
pursuant to 15A NCAC 02T .0508. [15A NCAC 02T .0508]
12. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is
prohibited. [15A NCAC 02T .05050)]
13. Freeboard in the wet weather storage pond shall not be less than two feet at any time. [I 5A NCAC
02T .0505(d)]
14. A gauge to monitor waste levels in the wet weather storage pond shall be provided. This gauge shall
have readily visible permanent markings, at inch or tenth of a foot increments, indicating the
following elevations: maximum liquid level at the top of the temporary liquid storage volume;
minimum liquid level at the bottom of the temporary liquid storage volume; and the lowest point on
top of the dam. [15A NCAC 02T .0108(b)(1)]
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15. A protective vegetative cover shall be established and maintained on all earthen embankments (i.e.,
outside toe of embankment to maximum allowable temporary storage elevation on the inside of the
embankment), berms, pipe runs, erosion control areas, and surface water diversions. Trees, shrubs,
and other woody vegetation shall not be allowed to grow on the earthen dikes or embankments.
Earthen embankment areas shall be kept mowed or otherwise controlled and accessible.
16. Should the limit for fecal coliform (e.g., daily maximum concentration of 25 colonies per 100 ml) or
turbidity (e.g., instantaneous maximum of 10 NTU) be exceeded, the treatment train in exceedance
shall be taken offline, and all wastewater shall be treated in the remaining properly operating
treatment train until the problems associated with the treatment train in exceedance have been
corrected. [15ANCAC 02T .0108(b)(1)]
17. All vegetative cover grass clippings shall be removed from the irrigation sites. Grass clippings shall
be bagged, baled or using another suitable Division approved method. [ 15A NCAC 02T .0108(b)(1)]
IV. MONITORING AND REPORTING REQUIREMENTS
Any Division required monitoring (including groundwater, plant tissue, soil and surface water
analyses) necessary to ensure groundwater and surface water protection shall be established, and an
acceptable sampling reporting schedule shall be followed. [15A NCAC 02T .0108(c)]
2. A Division certified laboratory shall conduct all laboratory analyses for the required effluent,
groundwater or surface water parameters. [15A NCAC 02H .0800]
3. Flow through the treatment facility shall be continuously monitored, and daily flow values shall be
reported on Form NDMR.
The Permittee shall install and maintain an appropriate flow measurement device to ensure the
accuracy and reliability of flow measurement consistent with accepted engineering and scientific
practices. Selected flow measurement devices shall be capable of measuring flows with a maximum
deviation of less than ten percent from true flow; accurately calibrated at a minimum of once per year;
and maintained to ensure the accuracy of measurements is consistent with the selected device's
accepted capability. The Permittee shall maintain records of flow measurement device calibration on
file for a period of at least five years. At a minimum, documentation shall include:
a. Date of flow measurement device calibration,
b. Name of person performing calibration, and
c. Percent from true flow.
[I5A NCAC 02T .0105(k)]
4. The Permittee shall monitor the effluent from the subject facilities at the frequencies and locations for
the parameters specified in Attachment A. [15A NCAC 02T .0108(c)]
The Pennittee shall maintain adequate records tracking the amount of effluent irrigated. At a
minimum, these records shall include the following information for each irrigation site listed in
Attachment B:
a. Date of irrigation;
b. Volume of effluent irrigated;
c. Site irrigated;
d. Length of time site is irrigated;
e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings;
f. Continuous monthly and year-to-date loadings for any non -hydraulic parameter specifically
limited in Attachment B;
g. Weather conditions; and
h. Maintenance of cover crops.
[15A NCAC 02T .0108(c)]
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6. Freeboard (i.e., waste level to the lowest embankment elevation) in the wet weather storage pond
shall be measured to the nearest inch or tenth of a foot, and recorded weekly_ Weekly freeboard
records shall be maintained at the facility for a period of no less than five years, and shall be made
available to the Division upon request. [15A NCAC 02T .0108(c)]
7. Three copies of all monitoring data (as specified in Conditions IV.3. and IVA.) on Forth NDMR for
each PPI and three copies of all operation and disposal records (as specified in Conditions IV.5. and
IV.6.) on Form NDAR-1 for every site in Attachment B shall be submitted on or before the last day of
the following month. If no activities occurred during the monitoring month, monitoring reports are
still required documenting the absence of the activity. All information shall be submitted to the
following address:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[I5A NCAC 02T .0105(1)]
Pursuant to § 143-215.1C., the Permittee shall provide to its users and the Division of Water
Resources an annual report summarizing the performance of the wastewater treatment and irrigation
facility and the extent to which the facility has violated this permit, or federal or State laws,
regulations, or rules related to the protection of water quality. This report shall be prepared on either
a calendar or fiscal year basis and shall be provided no later than 60 days after the end of the calendar
or fiscal year. Two copies of the annual report provided to the Permittee's users shall be submitted
to:
Division of Water Resources
Water Quality Permitting Section
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[&S. 143-215.IC]
9. A record shall be maintained of all residuals removed from this facility. This record shall be
maintained at the facility for a period of no less than five years, and shall be made available to the
Division upon request. At a minimum, this record shall include:
a. Name of the residuals hauler;
b. Non -Discharge permit number authorizing the residuals disposal, or a letter from a municipality
agreeing to accept the residuals;
c. Date the residuals were hauled; and
d. Volume of residuals removed.
[15ANCAC 02T .0108(b)(1)]
10. A maintenance log shall be maintained at this facility. This log shall be maintained at the facility for
a period of no less than five years, and shall be made available to the Division upon request. At a
minimum, this log shall include:
a. Date and results of power interruption testing on alternate power supply;
b. Date of calibration of flow measurement device;
c. Date of calibration of turbidimeter;
d. Visual observations of the plant and plant site; and
e. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing,
inspections and cleanings, etc.).
[15ANCAC 02T .0108(b)(1)]
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11. Monitoring wells shall be sampled after construction and within 3 months prior to initiating non -
discharge disposal operations. Monitoring wells shall be sampled thereafter at the frequencies and for
the parameters specified in Attachment C. All maping, well construction forms well abandonment
forms and monitoring data shall refer to the hermit number and the well nomenclature as_provided in
Attachment C and Fi re 1. [15A NCAC 02T .0105(m)]
12. Two copies of the monitoring well sampling and analysis results shall be submitted on a Compliance
Monitoring Form (GW-59), along with attached copies of laboratory analyses, on or before the last
working day of the month following the sampling month. The Compliance Monitoring Form (GW-
59) shall include this permit number, the appropriate well identification number, and one GW-59a
certification form shall be submitted with each set of sampling results. All information shall be
submitted to the following address:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[15A NCAC 02T .0I05(m)]
13. An annual representative soils analysis (i.e., Standard Soil Fertility Analysis) shall be conducted on
each irrigation site listed in Attachment B. These results shall be maintained at the facility for a
period of no less than five years, and shall be made available to the Division upon request. At a
minimum, the Standard Soil Fertility Analysis shall include the following parameters:
Acidity
Exchangeable Sodium Percentage
Phosphorus
Base Saturation (by calculation)
Magnesium
Potassium
Calcium
Manganese
Sodium
Cation Exchange Capacity
Percent Humic Matter
Zinc
Copper
pH
[15A NCAC 02T .0108(c)]
14. The Permittee shall maintain a record any upset conditions or unit failure that result in the diversion
of all wastewater flow through one train. This log shall be maintained at the facility for a period of no
less than five years, and shall be made available to the Division upon request. At a minimum, this log
shall include:
a. Date and time of plant upset/flow diversion;
b. Duration of the flow diversion;
c. Cause of upset, and measures taken to prevent future recurrence; and
d. Actions taken to repair or maintain the affected equipment.
15. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone number (910)
796-7215, as soon as possible, but in no case more than 24 hours, or on the next working day
following the occurrence or first knowledge of the occurrence of any of the following:
a. Treatment of wastes abnormal in quantity or characteristic, including the known passage of a
hazardous substance.
b. Any process unit failure (e.g., mechanical, electrical, etc.), due to known or unknown reasons,
rendering the facility incapable of adequate wastewater treatment.
c. Any facility failure resulting in a by-pass directly to receiving surface waters.
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d. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations.
e. Ponding in or runoff from the irrigation sites.
Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of
a storage structure, etc.) outside normal business hours shall be reported to the Division's Emergency
Response personnel at telephone number [phone], [phone], or [phone].
Persons reporting such occurrences by telephone shall also file a written report in letter form within
five days following first knowledge of the occurrence. This report shall outline the actions taken or
proposed to be taken to ensure the problem does not recur. [15A NCAC 02T .0105(1), 02T
.0108(b)(1)]
1� IM] 9 DCOUIXIM
1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the
wastewater treatment and irrigation facilities. [15A NCAC 02T .0108(b)]
2. The Permittee or their designee shall inspect the wastewater treatment and irrigation facilities to
prevent malfunctions, facility deterioration and operator errors resulting in discharges, which may
cause the release of wastes to the environment, a threat to human health or a public nuisance. The
Permittee shall maintain an inspection log that includes, at a minimum, the date and time of
inspection, observations made, and any maintenance, repairs, or corrective actions taken. The
Permittee shall maintain this inspection log for a period of five years from the date of the inspection,
and this log shall be made available to the Division upon request. [15A NCAC 02T .0108(b)]
3. Any duly authorized Division representative may, upon presentation of credentials, enter and inspect
any property, premises or place on or related to the wastewater treatment and irrigation facilities
permitted herein at any reasonable time for the purpose of determining compliance with this permit;
may inspect or copy any records required to be maintained under the terms and conditions of this
permit, and may collect groundwater, surface water or leachate samples. [G.S. 143-21.5.3(a)(2)]
VI. GENERAL CONDITIONS
1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to
an enforcement action by the Division in accordance with North Carolina General Statutes 143-
215.6A to 143-215.6C. [G.S. 143-215.6A to 143-215.6C]
2. This permit shall become voidable if the permitted facilities are not constructed in accordance with
the conditions of this permit, the Division approved plans and specifications, and other supporting
documentation. [15A NCAC 02T .0110]
3. This permit is effective only with respect to the nature and volume of wastes described in the permit
application, Division approved plans and specifications, and other supporting documentation. No
variances to applicable rules governing the construction or operation of the permitted facilities are
granted, unless specifically requested and approved in this permit pursuant to 15A NCAC 02T
.0105(n). [G.S. 143-21.5.1]
4. Pursuant to the flow reduction request received December 4, 2009 and approved February 4, 2010,
the Division accepts the data -based design flow rate of 86 gallons per day per bedroom (GPD/BR) for
the users served by this facility with a minimum of 172 GPD for i and 2 bedroom residences.
Regardless of the adjusted daily wastewater design flow rate, at no time shall wastewater flows
exceed the limits defined in this permit for the subject facility, or exceed the sewer capacity
downstream of any new sewer extension or service connection(s).
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The Permittee shall report the actual (i.e., measured) monthly average amount of wastewater flow
contributed per unit (GPD/BR) for the 12 months prior to permit renewal. If any of these actual
monthly averages are within 20% of the, the Permittee shall re-evaluate the approved value using the
methodology applied to determine the approved flow rate of 86 GPDBR, and submit this information
within 18 months of permit renewal. The Division may change the daily wastewater design flow rate
for connections to the system at that time, and upon each renewal cycle, pending an evaluation of the
submitted flow information. [ 15A NCAC 02T ,0114(f)]
The Permittee shall retain the Division's written approval of any authorized adjusted daily design
flow rate for the life of the facility, and shall transfer said written approval to any future Permittee.
[15A NCAC 02T .0114(f)]
6. The issuance of this permit does not exempt the Permittee from complying with any and all statutes,
rules, regulations, or ordinances, which may be imposed by other jurisdictional government agencies
(e.g., local, state, and federal). Of particular concern to the Division are applicable river buffer rules
in 15A NCAC 02B .0200; erosion and sedimentation control requirements in 15A NCAC Chapter 4
and under General Permit NCG010000; any requirements pertaining to wetlands under 15A NCAC
02B .0200 and 02H .0500; and documentation of compliance with Article 21 Part 6 of Chapter 143 of
the General Statutes. [15A NCAC 02T .0105(c)(6)]
7. In the event the permitted facilities change ownership or the Permittee changes their name, a formal
permit modification request shall be submitted to the Division. This request shall be made on official
Division forms, and shall include appropriate property ownership documentation and other supporting
documentation as necessary. The Permittee of record shall remain fully responsible for maintaining
and operating the facilities permitted herein until a permit is issued to the new owner. [15A NCAC
02T .0104]
8. The Permittee shall retain a set of Division approved plans and specifications for the life of the
facilities permitted herein. [15A NCAC 02T .0108(b)(1)]
9. The Permittee shall maintain this permit until all permitted facilities herein are properly closed or
permitted under another permit issued by the appropriate permitting authority. [15A NCAC 02T
.01050)]
10. This permit is subject to revocation or unilateral modification upon 60 days notice from the Division
Director, in whole or part for the requirements listed in 15A NCAC 02T .0110. [15A NCAC 02T
.0110]
11. Unless the Division Director grants a variance, expansion of the permitted facilities contained herein
shall not be granted if the Permittee exemplifies any of the criteria in 15A NCAC 02T .0120(b). [15A
NCAC 02T .0120]
12. The Permittee shall pay the annual fee within 30 days after being billed by the Division. Failure to
pay the annual fee accordingly shall because for the Division to revoke this permit. [15A NCAC 02T
.0105(e)(3)]
Permit issued this the 15"' day of May 2015
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
iOfay Wmerman, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0029475
WQ0029475 Version 2.0 Shell Version 150213 Page 9 of 10

Permit No. WQ0029475
Aqua North Carolina, Inc.
Sterling Farms WWTF
ENGINEERING CERTIFICATION
❑ Partial ❑ Final
Wastewater Irrigation
May 15, 2015
Onslow County
In accordance with 15A NCAC 02T .0116, I,__
as a duly registered Professional Engineer in the State of North Carolina, having the Permittee's
authorization to ❑ periodically ❑ weekly ❑ fully observe the construction of the permitted facility,
hereby state to the best of my abilities that due care and diligence was used in the observation of the
construction, such that the facility was built within substantial compliance and intent of this permit, the
Division -approved plans and specifications, and other supporting documentation.
❑ Any variation to this permit, the Division -approved plans and specifications, and other supporting
documentation has been documented in the attached as -built drawings, and shall serve as the
Permittee's minor modification request to amend the permit accordingly.
Provide a brief narrative description of any variations:
Professional Engineer's Name
Engineering Firm
Mailing Address
City State Zip
Telephone E-mail NC PE Seal, Signature & Date
THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING
INFORMATION AND MATERIALS, SHALL BE SENT TO THE FOLLOWING ADDRESS:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
WATER QUALITY PERMITTING SECTION
NON -DISCHARGE PERMITTING UNIT
By U.S. Postal Service:
1617 MAIL SERVICE CENTER
By Courier/Special Delivery:
512 N. SALISBURY ST.
RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604
WQ0029475 Version 2.0 Shell Version 150213 Page 10 of 10

ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS
PPI 001 — Phase I WWTF Effluent (Effective until completion and operation of Phase II)
Permit Number: WQ0029475 Version: 2.0
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING
REQUIREMENTS
Parameter Description - PCS Cade
Monthly Average
Mean Monthly Geometric
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
BOD, 5-Day (20 Deg, C) — 00310
10
mg/1
15
mg/1
2 x Month
Composite
Chloride (as Cl) — 00940
3 x Year
Composite
Colifonn, Fecal MF, M-FC Broth, 44.5 C — 31616
14
#/100 ml
25
#/100 ml
2 x Month '
Grab
Flow, in conduit or thru treatment plant— 50050
135,000
GPD
Continuous
Recorder
Nitrogen, Ammonia Total (as N) — 00610
4
mg/I
6
mg/l
2 x Month
Composite
Nitrogen, Nitrate Total (as N) — 00620
2 x Month
Composite
pH-00400
6.0
S.U.
9.0
S.U.
5 x Week
Grab
Solids, Total Dissolved— 70295
3 x Year i
Composite
Solids, Total Suspended — 00530
5
mg/I
10
mg/l
2 x Month
Composite
Turbidity, HCH Turbid'€meter-00076
10
ntu
Continuous'
Instantaneous
1. 3 x Year sampling shall be conducted during March, July and November.
2. Monthly average for Fecal Coliform shall he a geometric mean.
3. The highest turbidity value (instantaneous reading) of the two treatment trains shall be reported daily. Turbidity value may be reported as 10 mg/1" on weekends provided the alarm did not go
off (i.e. no limit exceedance occurs).
WQ0029475 Version 2.0 Attachment A Page 1 of 2

PPI 002 — Phases I & II WWTF Effluent (Effective upon completion and operation of Phase II)
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING
REQUIREMENTS
Parameter Description -PCS Code
Monthly Average
Mean Monthly Geometric
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
BOD, 5-Day (20 Deg. C) — 00310
10
mg/l
15
mg/l
2 x Month
Composite
Chloride (as Cl) -- 00940
3 x Year'
Composite
Colifonn, Fecal MF, M-FC Broth, 44.5 C-31616
14
#/100 ml
25
#/100 1111
2 x Month'
Grab
Flow, in conduit or thru treatment plant — 50050
186,000
GPD
Continuous
Recorder
Nitrogen, Ammonia Total (as N) — 00610
4
mg'l
6
mg/l
2 x Month
Composite
Nitrogen, Nitrate Total (as N) — 00620
2 x Month
Composite
pH — 00400
6.0
s.u.
9.0
S.U.
5 x Week
Grab
Solids, Total Dissolved — 70295
3 x Year
Composite
Solids, Total Suspended — 00530
5
mg/1
10
rng/l
2 x Month
Composite
Turbidity, HCH Turbidimeter-00076
10
ntu
Continuous
Instantaneous
1. 3 x Year sampling shall be conducted during March, July and November.
2. Monthly average for Fecal Colifonn shall be a geometric mean.
3. The highest turbidity value (instantaneous reading) of the two treatment trains shall be reported daily. "Turbidity value maybe reported as" 10 mg/1- on weekends provided the alarm did not go
off (i.e. no limit exceedance occurs).
PPI 003 — Groundwater Lowering Effluent
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING
REQUIREMENTS
Parameter Description -PCS Code
Monthly Average
Monthly Geometric
Daily Minimum
Daily Maximum
Measurement
Sample
Mean
Frequency
Type
Coliform, Fecal M F, M-FC Broth, 44.5 C — 31616
Monthly
Grab
Nitrogen, Total (as N) — 00600
Monthly
Grab
pH — 00400
Monthly
Grab
1. Monthly average for Fecal Coliform shall be a geometric mean.
WQ0029475 Version 2.0 Attachment A Page 2 of 2

ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS Permit Number: WQ029475 Version: 2.0
Aqua North Carolina, Inc. -- Sterling Farms WWTF
IRRIGATION AREA INFORMATION
APPLICATION LIMITATIONS
Field
Owner
County
Latitude
Longitude
Net
Acreage
Dominant
Soil Series
parameter
Hourly
Efate
Yearly
Max
Units
1**
Aqua North Carolina, Inc.
Onslow
2.33
Norfolk
01284-Application Surface Irrigation
0.1
48.88
inches
2**
Aqua North Carolina, Inc.
Onslow
1.88
Norfolk
01284-Application Surface Irrigation
0.1
48.88
inches
3**
Aqua North Carolina, Inc.
Onslow
2.00
Norfolk
01284 - Application Surface Irrigation
0.1
48.88
inches
4*
Aqua North Carolina, Inc.
Onslow
.2.19
Norfolk
01284 - Application Surface Irrigation
0, l
48.88
inches
5*
Aqua North Carolina, Inc.
Onslow
1.93
Norfolk
01284 - Application Surface Irrigation
0.1
48,88
inches
6*
Aqua North Carolina, Inc.
Onslow
2.30
Norfolk
01284 - Application Surface Irrigation
0.1
48.88
inches
7*
Aqua North Carolina, Inc.
Onslow
2.20
Norfolk
01284 - Application Surface Irrigation
0.1
48.88
inches
8*
Aqua North Carolina, Inc.
Onslow
2.48
Norfolk
01284 - Application Surface Irrigation
0.1
48.88
inches
9**
Aqua North Carolina, Inc.
0nslow
2.18
Norfolk
01284 - Application Surface Irrigation
0.1
49.88
inches
10**
Aqua North Carolina, Inc.
Onslow
1.94
Norfolk
01284-Application Surface Irrigation
0.1
48.88
inches
II**
Aqua North Carolina, Inc.
Onslow
1,85
Norfolk
01284- Application Surface Irrigation
0.1
49.88
inches
12**
Aqua North Carolina, Inc.
Onslow
1.84
Norfolk
01284 -Application Surface Irrigation
0.1
48.88
inches
13*
Aqua North Carolina, Inc.
Onslow
2.91
Norfolk
01284-Application Surface Irrigation
0.1
48.88
inches
14*
Aqua North Carolina, Inc.
Onslow
2.02
Norfolk
01284 - Application Surface Irrigation
0.1
48.88
inches
l 5*
Aqua North Carolina, Inc.
Onslow
1.78
Norfolk
01284 - Application Surface Irrigation
0.1
48.88
inches
l 6*
Aqua North Carolina, Inc.
Onslow
1.97
Norfolk
01284 -Application Surface Irrigation
0.1
48.88
inches
17*
Aqua North Carolina, Inc.
Onslow
1,76
Norfolk
01284 - Application Surface Irrigation
0.1
48.88
inches
18*
Aqua North Carolina, Inc.
Onslow
1.96
Norfolk
01284-Application Surface Irrigation
0.1
48.88
inches
19*
Aqua North Carolina, Inc.
Onslow
1.96
Norfolk
01284-Application Surface Irrigation
0.1
48.88
inches
20*
Aqua North Carolina, Inc.
Onslow
1.89
Norfolk
01284-Application Surface Irrigation
0.1
48.88
inches
21*
Aqua North Carolina, Inc.
Onslow
2.01.
Norfolk
01284-Application Surface irrigation
0.1
48.89
inches
22*
Aqua North Carolina, Inc.
Onslow
2.49
Norfolk
01284 - Application Surface Irrigation
0.1
48.88
inches
23*
Aqua North Carolina, Inc.
Onslow
2.78
Norfolk
01284 - Application Surface Irrigation
0.1
48.88
inches
24*
Aqua North Carolina, Inc.
Onslow
2.62
Norfolk
01284 - Application Surface Irrigation
0.1
48.88
inches
Totals
51.23
* Phase I irrigation fields having a total area of 37.22 acres and a disposal capacity of 135,339 GPD.
** Phase 11 irrigation fields having a total area of 14.01 acres and a disposal capacity of 50,943 GPD for a cumulative Phase I and 11 area of 51.23 acres and disposal capacity of
186,282 GPD,
WQ0029475 Version 2.0 Attachment B Page I of 1

THIS PAGE BLANK

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Monitoring wells: MW-1, MW-2, and MW-3
Permit Number: WQ0029475 Version: 2.0
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMEN'rs
PCs Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
00680
Carbon, Tot Organic (TOC)
mg/L
3 x Year
Grab
1,6
00940
Chloride (as Cl)
250
mg/L
3 x Year
Grab
I
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
3 x Year
Grab
1
00610
Nitrogen, Ammonia Total (as N)
l .5
mg/L
3 x Year
Grab
l
00620
Nitrogen, Nitrate Total (as N)
10
mg/L
3 x Year
Grab
1
00400
pH
6.5-8.5
su
3 x Year
Grab
1,2
00665
Phosphorus, Total (as P)
mg/L
3 x Year
Grab
1
70300
Solids, Total Dissolved - 180 °C
500
mg/L
3 x Year
Grab
l
GWVOC
Volatile Compounds (GC/MS)
Present: Yes/No
Annually
Grab
1, 4, 5
82546
1 Water Level, Distance from measuring point
feet
3 x Year
Calculated
1, 2, 3
I . 3 x Year monitoring shall be conducted in March, July & November; Annual monitoring shall be conducted every November.
2. The measurement of water levels shall be made prior to purging the wells. The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement
of pH shall be made after purging and prior to sampling for the remaining parameters.
3. The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the relative elevation of the treasuring point for each monitoring well. The measuring points (top
of casing) of all monitoring wells shall be surveyed relative to a common datum.
4. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods:
a. Standard Method 6230D. PQL at 0.5 µg/L or less
b. Standard Method 621 oD. 11Ql, at 0.5 µg/L or less
C. EPA Method 8021, Low Concentration, PQL at 0.5 µg/I, or less
d. F;PA Method 8260, Low Concentration, PQL at 0.5 µg/L or less
e. Another method with prior approval by the Water Quality Permitting Section Chief
Any method used must meet the following qualifications:
a. A laboratory must be DWR certified to run any method used.
b. The method used must, at a minimum, include all the constituents listed in Table VIII of Standard Method 6230D.
C. The method used must provide a PQL of 0.5 lug/L or less that must be supported by laboratory proficiency studies as required by DWR. Any constituents detected above the MDL but below
the PQI. of 0.5 µg/L must be qualified (estimated) and reported.
5. If any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Wilmington Regional Office supervisor, telephone number [phone],
must be contacted immediately for further instructions regarding any additional follow-up analyses required.
6. If TOC concentrations greater than 10 ing/L are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents
comprising this TOC concentration. If the TOC concentration as measured in the background monitor well exceeds 10 mg/L, this concentration will be taken to represent the naturally occurring
TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above.
7. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure I and this attachment.
WQ0029475 Version 2.0 Attachment C Page 1 of 1

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WQ0029475
Old 30 Road, Jacksonville, NC 28546
Aqua North Carolina, Inc.
Latitude: 34.7706°
Sterling Farms WWTF
Longitude:-77.31330
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Figure 4
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WQ0029475
Old 30 Road, Jacksonville, NC 28546
Aqua North Carolina, Inc.
Latitude: 34.77060
Sterling Farms WWTF
Longitude:-77.3133'
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