WQ0005790_Final Permit_20120309

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor Director Secretary
March 9, 2012
Jerry A. Walters. Town Manager
Town of Oak Island
4601 Past Oak Island Drive
Oak Island, North Carolina 28465
Dear Mr. Kelly:
SCANNED
DATE: l j
Subject: Permit No. WQ0005790
Town of Oak Island
Wastewater Treatment, High -
Rate Infiltration and
Conjunctive Reclaimed Water
Utilization System
Brunswick County
In accordance with your permit application major modification received September 17, 2011, and
subsequent additional information received October 17, 2011, we are forwarding herewith Permit No.
$00, WQ0005790 dated March 9, 2012 for the continued operation of the subject wastewater treatment, high
rate infiltration and reclaimed water utilization facilities.
,r—
Modifications to the subject permit are as follows:
➢ The permit description has been revised to include the new sodium hypochlorite chemical
feed system and a lime slurry chemical feed system to the wastewater treatment facility for
the Town of Oak Island.
The permit has been reformatted to be consistent with the most current reclaimed water and
high rate infiltration permit template.
➢ Rule references have been updated pursuant to the new 15A NCAC 02U rules which became
effective on June 18, 2011.
➢ Reclaimed water and high rate infiltration moni(oring requirements and limits are now
located in the Attachments.
Please note that on August 5, 2009, Session Law 2009-406, entitled "An Act to Extend Certain
Government Approvals Affecting the Development of Real Property Within the State," was enacted by
the General Assembly and signed into law. The Act, known as the Permit Extension Act of 2009, extends
the expiration date of certain government approvals and permits. In addition, Session Law 2010-177
extended the Act by another year- Permit No. WQ0005790 falls within the scope of this Act and is
therefore being extended until January 31, 2016. A renewal application must still be submitted six
months in advance of the extended expiration date.
AQUIFER PROTECTION SECTION
1636 Mail Service: Center, Ralegh, North Carolina 27699-1636
Location: 512 N. Salisbury St., Raleigh, !North Carolina 27604 One
Phone: [phone] FAX: [phone] NorthCarolina
Internet: www.nmaterouality-orn t
An Equal Opportunity 1 Affirmative Action Ernpinyer Na" a"r ally

Mr. Kelly
March 9, 2012
Page 2 of 2
This permit shall be effective from the date of issuance until January 31, 2016, shall void Permit
No. WQ0005790 issued February 2, 2007, and shall be subject to the conditions and Iimitations as "qftK
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, NDAR-1 and 2
reporting forms are available for download at: http://portal.ncdenr.ore/web/wg/ap0au/reporting.
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.
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this permit, please contact Alice M. Wessner at [phone] or
[e-mail].
Sincerely,
/Chake)s Wakild, F.E.
cc: Brunswick County Health Department
Wilmington Regional Office, Aquifer Protection Section
G. Robert Graham, PE -- George Finch/Boney and Associates, P.A., 309 N. Boylan Avenue,
Raleigh, NC 27603-1402
Permit File WQ0005790
Notebook File WQ0005790
60

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMUSSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
WASTEWATER TREATMENT, HIGH -RATE INFILTRATION AND RECLAIMED WATER
UTILIZATION PERMIT
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
Town of Oak Island
Brunswick County
FOR THE
continued operation of a 400,000 gallon per day (GPD) wastewater treatment facility consisting of a dual -
train extended aeration plant with influent bar screen, aerated surge tank with dual pumps, dual aeration
basins with course -bubble fixed diffusers, a lime slurry chemical feed system, an aerobic digester and
sludge holding tank, dual 28-foot diameter by 12-foot SWD circular clarifiers, a 4-cell tertiary filter,
effluent chlorine disinfection system including a sodium hypochlorite chemical feed system and backup
gas chlorination, on -site stand-by generator, a dosing pump station, with a total disposal capacity of
400,000 GPD disposal capacity partitioned in the following manner:
One (1) 69,000 square foot high rate infiltration basin to provide 180,000 GPD of tertiary -treated
effluent, and
25.5 acres of non -conjunctive reclaimed water spray irrigation facilities to provide for the
remaining 200,000 GPD disposal of tertiary -treated effluent meeting reclaimed water quality
standards. The reclaimed water spray irrigation facilities consist of one (1) lined 3.4 million
gallon (MG) effluent storage pond and one (1) unlined 1.5 MG 5-day upset pond, dual 600 GPM
submersible irrigation pumps, continuous in -line effluent turbidity meter, an emergency bypass
system for diversion of non -reclaimed quality effluent to the 5-day upset pond, approximately
2600 linear feet of 8-inch force main to the 6.3 acres spray irrigation area (Zones 1, 2, and 3)
north of the existing plant consisting of 59 sprinklers, a 4.7 acre spray irrigation area (Zones 4,
4A, 5, and 5A) at the existing plant area consisting of 40 sprinklers, a 14.5 acre spray irrigation
area (Zones 6-14) consisting of 279 sprinklers and a 100 KW portable generator to provide
emergency standby power for irrigation, and
continued operation of a conjunctive -use reclaimed utilization system capable of irrigating 43,000 GPD of
reclaimed -quality effluent consisting of the following elements:
approximately 310 linear feet of reclaimed distribution line to connect to the existing South
Harbour Golf Course irrigation pump station, one (1) 250 gpm reclaimed irrigation pump
designed to operate in conjunction with one of two (2) existing 250 gpm golf course irrigation
pumps; using existing golf course distribution piping and 303 existing sprinkler nozzles to irrigate
28.6 acres of golf course area (Zones GC- IN, GC- IY, GC-2Y, GC-3N, GC-3Y, GC-4N, and GC-
4Y),
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to serve the Town of Oak Island, with no discharge of wastes to surface waters; pursuant to the
application received September. 30, 2011, and subsequent additional information received by. the Division
of Water Quality on October 17, 2011, 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.\
This permit shall be effective from the date of issuance until January 31, 2016, shall void Permit No.
WQ0005790 issued February 2, 2007 and shall be subject to the following specified conditions and
limitations:
L SCHEDULES
In accordance with 15A NCAC 02T .0116, 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 phases and
partially certified, the Permittee shall retain the responsibility to track further construction ap rp oved
under the same permit, and shall provide a final certificate of completion once the entire project has
been completed. Mail the Certification to the Division of Water Quality, Aquifer Protection Section,
1636 Mail Service Center, Raleigh, NC 27699-1636.
2. The Wilmington Regional Office, telephone number [phone], shall be notified at least 48
hours in advance (excluding weekends and holidays) of operation of the modified facilities such that
an in -place inspection can be made. Notification to the Aquifer Protection Section's regional
supervisor shall be made from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
3. 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.
II. PERFORMANCE STANDARDS
1. The subject non -discharge and reclaimed water 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
infiltration or the utilization areas to adequately assimilate the effluent or the reclaimed water, the
Permittee shall take immediate corrective actions including Division required actions, such as the
construction of additional or replacement wastewater treatment, or infiltration facilities or
additional replacement reclaimed water utilization facilities or cessation of reclaimed water
utilization activities.
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.
3. All wells constructed for purposes of groundwater monitoring wells 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.
4. Influent and effluent limitations for the infiltration pond and the reclaimed water utilization
facilities shall not exceed those specified in Attachment A.
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Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in
Attachment B.
6. The following shall be requirements for the reclaimed water utilization facilities:
a. All reclaimed water valves, storage facilities and outlets shall be tagged or labeled to warn the
public or employees that reclaimed water is not intended for drinking. Where appropriate, such
warning shall inform the public or employees to avoid contact with reclaimed water.
b. All reclaimed water piping, valves, outlets and other appurtenances shall be color -coded, taped
or otherwise marked to identify the source of the water as being reclaimed water.
i. All reclaimed water piping and appurtenances shall be either colored purple (i.e., Pantone
522) and embossed or integrally stamped or marked "CAUTION: RECLAM ED WATER —
DO NOT DRINK" or be installed with a purple (i.e., Pantone 522) identification tape or
polyethylene vinyl wrap. The warning shall be stamped on opposite sides of the pipe and
repeated every three feet or less.
ii.Identification tape shall be at least three inches wide and have white or black lettering on
purple (i.e., Pantone 522) field stating "CAUTION: RECLAIMED WATER — DO NOT
DRINK." Identification tape shall be installed on top of reclaimed water pipelines, fastened
at least every 10 feet to each pipe length and run continuously the entire length of the pipe.
iii. Existing underground distribution systems retrofitted for the purpose of distributing
reclaimed water shall be taped or otherwise identified as noted above. This identification
need not extend the entire length of the distribution system, but shall be incorporated within
10 feet of crossing any potable water supply line or sanitary sewer line.
c. All reclaimed water valves and outlets shall be of a type, or secured in a manner, that permits
operation by authorized personnel only.
d. Above -ground hose bibs (i.e., spigots or other hand -operated connections) shall not be present.
Hose bibs shall be located in locked below -grade vaults that shall be clearly labeled non -
potable. As an alternative to the use of locked below -grade vaults with standard hose bibs
services, hose bibs, which can only be operated by a special tool or connected to a special hose
connection, may be placed in non -lockable underground services boxes clearly labeled non -
potable.
7. No direct cross -connections shall be allowed between the reclaimed water and potable water
systems, unless such connection has been approved by the Department pursuant to 15A NCAC 18C
.0406.
8. The compliance and review boundaries for reclaimed water use areas are established at the
utilization area boundaries. Any exceedance of standards at the compliance or review boundary
shall require action in accordance with 15A NCAC 02L .0106.
9. The compliance boundary for the high rate infiltration basin shall be specified in accordance with
15A NCAC 02L .0107(b). This disposal system was individually permitted on or after December
30, 1983; therefore, the complance boundary is established at either 250 feet from the effluent
disposal area, or 50 feet within the property boundary, whichever is closest to the effluent disposal
area. An exceedance of groundwater standards at or beyond the compliance boundary is subject to
remediation action according to 15A NCAC 02L .0106(d)(2) as well as enforcement actions in
accordance with North Carolina General Statute 143-215.6A through 143-215.6C.
10. In accordance with 15A NCAC 02L .0108, the review boundary is established midway between the
compliance boundary and the high rate infiltration basin. Any exceedance of groundwater
standards at the review boundary shall require action in accordance with 15A NCAC 02L .0106.
11. 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.
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12. 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).
13. 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
Brunswick 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.
14. The facilities permitted herein shall be constructed according to the following setbacks: (All
treatment, storage and application fields were permitted under 15A NCAC 02H .0200):
a. The setbacks for high -rate infiltration sites shall be as follows (all distances in feet):
i. Surface waters classified as SA:
100
ii. Surface waters not classified as SA:
50
iii. Groundwater drainage systems:
500
iv. Other treatment units:
50
v. Any property line:
100
vi. Public right of way:
50
vii. Impounded public water supplies:
500
viii.Public shallow groundwater supply:
500
b. The setbacks for the non -conjunctive reclaimed water utilization zones be as follows (all
distances in feet):
i. Surface waters classified SA:
ii. Any well with exception of monitoring wells:
iii. Any non -potable well:
100
100
10
c. The setbacks for the conjunctive reclaimed golf course irrigation in Zones GC -IN, GC-lY, GC-
2Y, GC-3N, GC-3Y, GC-4N and GC-4Y shall be as follows (all distances in feet):
i. Surface waters not classified as SA: 25
ii. Surface waters classified as SA: 100
iii. Any well with the exception of monitoring wells: 100
d. The setbacks for storage and treatment units shall be as follows (all distances in feet):
i. Any property line: 50
M. OPERATION AND MAINTENANCE REOUIREMENTS
1. The wastewater treatment, high rate infiltration and reclaimed water utilization 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, reclaimed water or
partially treated effluent resulting from the operation of this facility.
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2. The Permittee shall maintain an Operation and Maintenance Plan pursuant to 15A NCAC 02T .07Q7,
and 15A NCAC 02U .0801 which at a minimum shall include the following:
a. Description of the system in sufficient detail to show what operations are necessary for the
system to function and by whom the functions will be conducted;
b. A map of all reclaimed water distribution lines and record drawings of all reclaimed water
utilization systems under the Permittee's control;
c. Description of anticipated maintenance activities;
d. Include provisions for safety measures including restriction of access to sites and equipment; and
e. Spill control provisions including response to upsets and bypasses including control, containment,
remediation, and contact information for plant personnel, emergency responders and regulatory
agencies.
3. 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.
4. An operator certified by the Water Pollution Control System Operators Certification Commission
(WPCSOCC) of a grade equivalent or greater than the facility classification shall be on call 24 hours
per day.
5. Loading of the high rate infiltration basin with treated effluent shall not exceed 180,000 GPD. The
Permittee shall periodically drain and clean the infiltration basin and keep records of maintenance
activities. The Permittee may request an increased loading limit in the future based on demonstrated
improvements in performance of the high rate infiltration system.
6. A suitable year round vegetative cover shall be maintained on the reclaimed water utilization sites at
all times, such that crop health is optimized, allows for even distribution of reclaimed water, and
allows inspection of the of the reclaimed water irrigation system.
7. The infiltration basin(s) shall be periodically dredged to remove deposited materials that may impede
the infiltration process. Dredging 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. The Wilmington Regional
Office's Aquifer Protection Section, telephone number [phone], shall be notified prior to
dredging.
8. Adequate measures shall be taken to prevent effluent ponding in or runoff from the reclaimed water
irrigation sites listed in Attachment B.
9. Reclaimed water irrigation shall not be performed during inclement weather or when the ground is in
a condition that will cause ponding or runoff.
10. All reclaimed water 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.
11. Only treated effluent generated from the Town of Oak Island shall be infiltrated and utilized on .the
sites listed in Attachment B.
12. The application of chemicals into the infiltration unit is expressly prohibited unless otherwise
approved by the Wilmington Regional Office.
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13. An automatically activated -standby power source capable of powering all essential treatment units
and of preventing improperly treated wastewater from entering the storage, distribution or utilization
system 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.
14. No automobiles or machinery shall be allowed on the infiltration sites except during equipment
installation or while maintenance is being performed.
15. Public access to the wastewater treatment facilities and the five day upset pond shall be prohibited.
16. Public access to the reclaimed water utilization sites shall be controlled during active site use. Such
controls may include the posting of signs showing the activities being conducted at each site.
17. 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 0708 and 15A NCAC 02U .0802.
18. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is
prohibited unless diverted to an alternate treatment or collection system.
19. Freeboard in the high rate infiltration basin, irrigation storage pond, and five day upset pond shall not
be less than two feet at any time.
20. A gauge to monitor waste levels in the high rate infiltration basin, irrigation storage pond, and five
day upset pond shall be provided. This gauge shall have readily visible permanent markings
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.
21. 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.
22. All effluent shall be routed to the five day upset pond 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, until the problems associated with the wastewater treatment plant have been
corrected. The wastewater in the five day upset pond shall be pumped back to the treatment plant
headworks for re -treatment or treated in the five day upset pond prior to infiltration.
IV. MONITORING AND REPORTING REOUIREMENTS
1. 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.
2. Per 15A NCAC 02H .0800, a Division certified laboratory shall conduct all laboratory analyses for
the required effluent, groundwater or surface water parameters.
3. Flow through the treatment facility shall be continuously monitored, and daily flow values shall be
reported on Form NDMR.
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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 withthe 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.
4. The Permittee shall monitor the influent and effluent from the subject facilities at the frequencies and
locations for the parameters specified in Attachment A.
5. The Permittee shall maintain adequate records tracking the amount of non conjunctive reclaimed
water utilized. Records shall be maintained for a minimum of five years. At a minimum, these,
records shall include the following information for each utilization site listed in Attachment B:
a. Date of reclaimed water utilization;
b. Site irrigated
c. Length of time site is irrigated;
d. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings;
e. Weather conditions; and
f. Maintenance of cover crops.
6. The Permittee shall maintain adequate records tracking the amount of conjunctive reclaimed water
utilized (South Harbour Golf Course). Records shall be maintained for a minimum of five years. At
a minimum, these records shall include the following information for each utilization site listed in
Attachment B:
a. Date of reclaimed water utilization; and
b. Volume of reclaimed water utilized (i.e., monthly total).
7. The Permittee shall maintain adequate records tracking the amount of effluent sent to high rate
infiltration. At a minimum, these records shall include the following information for each infiltration
site listed in Attachment B:
a. Date of infiltration;
b. Volume of effluent infiltrated;
c. Loading rates to each infiltration site listed in Attachment B;
d. Weather conditions.
8. Freeboard (i.e., waste level to the lowest embankment elevation) in the high rate infiltration basin,
irrigation storage pond, and five day upset pond shall be 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.
9. Three copies of all monitoring data, operation and utilization records shall be submitted for the sites
listed below which are also listed on Attachment B. Reporting forms shall be submitted on or before
the last day of the following month. If no reclaimed water utilization activities occurred during the
month, monitoring reports are still required documenting the absence of the activity.
Site
Form to submit
Refer to Condition
PPI 001, 002, 003
NDMR
IV.3, IVA, IV.5 and IV. 6
Non conjunctive reclaimed water
NDAR-1
IV.5 and 1V. 6
High rate infiltration
NDAR-2
IV.5 and IV. 6
Conjunctive reclaimed water
NDAR-3
IV.5 and IV. 6
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All information shall be submitted to the following address:
Division of Water Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
10. Pursuant to § 143-215.1C., the Permittee shall provide to its users and the Division of Water Quality
an annual report summarizing the performance of the wastewater treatment and infiltration 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 Quality
Aquifer Protection Section
1636 Mail Service Center
Raleigh, North Carolina 27699-1636
11. 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.
12. 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. Visual observations of the plant and plant site; and
d. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing,
inspections and cleanings, etc.).
13. Monitoring wells shall be sampled at the frequencies and for the parameters specified in Attachment
C. All mapping, well construction forms, well abandonment forms and monitoring data shall refer to
the permit number and the well nomenclature as provided in Attachment C.
14. 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 Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
15. Noncompliance Notification:
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v
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. Any occurrence at the facility resulting in the treatment of significant amounts of wastes that is
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.
d. Any time self -monitoring indicates the facilities permitted have gone out of compliance with its
permit limitations contained in this permit.
e. Ponding in or runoff from the infiltration or the reclaimed water utlilization sites.
f. Effluent breakout from the infiltration basin(s).
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.
I. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the
wastewater treatment, infiltration and reclaimed water utilization facilities.
2. The Permittee or their designee shall inspect the wastewater treatment, infiltration and reclaimed
utilization 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.
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, infiltration and reclaimed
water utilization 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.
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.
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.
WQ0005790 Version 1.5 Shell Version 120103 Page 9 of 12

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).
4. 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 the Division's 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.
5. 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.
6. The Permittee shall retain a set of Division approved plans and specifications for the life of the
facilities permitted herein.
7. 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 pursuant to 15A NCAC
02T .01050).
8. 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.
9. 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).
10. The Permittee shall pay the annual fee within 30 days after being billed by the Division. Failure to
pay the annual fee accordingly shall be cause for the Division to revoke this permit pursuant to 15A
NCAC 02T .0105(e)(3).
Permit issued this the 9th day of March 2012
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
arl akild, Director
ivisi n of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0005790
WQ0005790 Version 1.5 Shell Version 120103 Page 10 of 12

Permit No. WQ0005790
Town of Oak Island
❑ Partial ❑ Final
Wastewater Treatment, Reclaimed Water Utilization
and High Rate Infiltration
March 9, 2012
Brunswick County
ENGINEERING CERTIFICATION
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
ineerina Firm
Name
Mailing Address
City j State Zip
i
E-mail
NC PE
& 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 QUALITY
AQUIFER PROTECTION SECTION
LAND APPLICATION UNIT
By U.S. Postal Service: By-Courier/Special Delivery:
1636 MAIL SERVICE CENTER 512 N. SALISBURY ST.
RALEIGH, NORTH CAROLINA 27699-1636 RALEIGH, NORTH CAROLINA 27604
WQ0005790 Version 1.5 Shell Version 120103 Page 11 of 12

ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS
PPI 001— Effluent — Infiltration Pond and Reclaimed Water Utilization
Permit Number: WQ0005790 Version: 1.5
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING
REQUIREMENTS
PCS
Code
Parameter Description
Monthly Average
Monthly Geometric
Mean
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample .
Type
00310
BOD, S-Day (20 Deg. C)
10
mg/l
mg/1
mg/1
15
mg/l
2 x month'
Composite
00530
Solids, Total Suspended
5
mg/l
mg/l
mg/1
10
mg/1
2 x month'
Composite
00610
Nitrogen, Ammonia Total (as N)
4
mg/1
mg/l
mg/1
6
mg/1
2 x month'
Composite
00620
Nitrogen, Nitrate Total (as N)
mg/l
mg/l
mg/1
mg/l
2 x month'
Composite
00625
Nitrogen, Kjeldahl, Total (as N)
mg/1
mg/l
mg/1
mg/1
2 x month'
Composite
50060
Chlorine, Total Residual
mg/1
mg/1
mg/l
mg/l
Daily
Grab
00680
Carbon, Total Organic (TOC)
mg/1
mg/l
mg/1
mg/l
3 x year
Grab
00940
Chloride (as Cl)
mg/1
mgfl
mg/1
mg/1
3 x year
Grab
70295
Solids, Total Dissolved
mg/1
mg/l
mg/1
mg/l
3 x year
Grab
00400
pH
S.U.
s.u.
6.9
S.U.
9
S.U.
3 x year
Grab
31616
Coliform, Fecal MF-FC Broth, 44.5C
14
#/100ml
#/100ml
#/100ml
25
#/100ml
2 x month'
Grab
00076
Turbidity, HCH Turbidimeter
ntu
Ntu
ntu
10
ntu
Continuous
Recorder
1. 2 x month monitoring frequency only during the months of April through October. During the remainder of the year, these parameters shall be monitored monthly.
2. 3 x year monitoring shall be conducted during February, June and October.
PPI 002 — WWTF Influent
INFLUENT CHARACTERISTICS
INFLUENT LIMITS
MONITORING
REQUIREMENTS
PCS
Code
Parameter Description
Monthly Average
Monthly Geometric
Daily Minimum
Daily Maximum
Measurement
Sample
Mean
Frequency
Type
50050
Flow, in conduit or thru treatment plant
400,000
gpd
Continuous
Recorder
WQ0005790 Version 1.5 Attachment A Page 1 of 4

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WQ000579j ersion 1.5 Atta:1 ent A e 2 of 4 .

ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS (continued)
PPI 003 — Effluent — from Conjunctive Reclaimed Water
Permit Number: WQ0005790 Version: 1.5
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING
REQUIREMENTS
PCS
Code
Parameter Description
Monthly Average
Monthly Geometric
Mean
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
50050
Flow, in conduit or thru treatment plant
225,951 gpd
Continuous
Recorder
PPI 004 — Effluent — Infiltration Pond
MONITORING
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
REQUIREMENTS
PCS
Code
Parameter Description
Monthly Average
Monthly Geometric
Mean
Daily Minimum
. Daily Maximum
Measurement
Frequency
Sample
Type
50050
Flow, in conduit or thru treatment plant
180,000
1 gpd
Continuous
Recorder
WQ0005790 Version 1.5 Attachment A Page 3 of

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WQ000579ersion 1.5 Attanent A "age 4 of 4 I

ATTACHMENT B - APPROVED LAND APPLICATION SITES AND MUTATIONS
Town of Oak Island
Permit Number: WQ0005790 Version: 1.5
NON CONJUNCTIVE RECLAIMED
WATER IRRIGATION AREA
INFORMATION
APPLICATION LIMITATIONS
Irrigation Areas
Owner
County
Latitude
Longitude
Net
Dominant
Parameter
Hourly
Yearly
Units
Acreage
Soil Series
Rate
Max
6
Town of Oak Island
Brunswick
33°56'05"
78°03'43"
1.25
01284 - Non -Discharge Application Rate
0.2
127
inches
7
Town of Oak Island
Brunswick
33°56'03"
78°03'41"
1.70
01284 - Non -Discharge Application Rate
0.2
127
inches
8
Town of Oak Island
Brunswick
33°56'06"
78°03'40"
1.55
01284 - Non-Dischar e Application Rate
0.2
127
inches
9
Town of Oak Island
Brunswick
33°56'09"
78003'40"
1.99
01284 - Non -Discharge Application Rate
0.2
127
inches
10
Town of Oak Island
Brunswick
33°56'06"
78°03'37"
1.75
01284 - Non -Discharge Application Rate
0.2
127
inches
11
Town of Oak Island
Brunswick
33°56'03"
78°03'37"
2.47
01284 - Non -Discharge Application Rate
0.2
127
inches
12
Town of Oak Island
Brunswick
33°56'03"
78°03'33"
1.62
01284 - Non -Discharge Application Rate
0.2
127
inches
13
Town of Oak Island
Brunswick
1 33°56'04"
78-03-32"
1.19
01284 - Non -Discharge Application Rate
0.2
127
inches
14
Town of Oak Island
Brunswick
33056'02"
78003'30"
.98
01284 - Non-Dischar e Application Rate
0.2
127
inches
ZONES 1, 2 & 3
Town of Oak Island
Brunswick
33°55'57"
78003'32"
6.30
01284 - Non -Discharge Application Rate
0.4
156
inches
ZONES 4 & 4A
To of Oak Island
Brunswick
33°55'50"
78°03'41"
2.20
01284 -Non-Discharge Application Rate
0.4
52
inches
ZONES 5 & 5A
Town of Oak Island
Brunswick
33°55'48"
78°03'34"
2.50
01284 - Non -Discharge Application Rate
0.4
156
inches
Total Non Conjunctive Reclaimed Water Irrigation Area
25.5
CONJUNCTIVE RECLAIMED
WATER IRRIGATION AREA INFORMATION
APPLICATION LIMITATIONS
Golf Course/Zone
Owner
County
Latitude
Longitude
Net
Dominant
Parameter
Hourly
Yearly
Units
Acreage
Soil Series
Rate
Max
GC-3Y
Town of Oak Island
Brunswick
33°55'50"
781103'57"
7.00
01284 - Non -Discharge Application Rate
0.5
22
inches
GC -IN
Town of Oak Island
Brunswick
33°55'36"
78103'50"
1.30
01284 - Non-Dischar e Application Rate
0.5
12
inches
GC-1 Y
Town of Oak Island
Brunswick
33155'40"
78°03'52"
3.30
01284 - Non -Discharge Application Rate
0.5
22
inches
GC-2Y
Town of Oak Island
Brunswick
33°55'37"
78°04'01"
6.50
01284 - Non -Discharge Application Rate
0.5
22
inches
GC-3N
Town of Oak Island
Brunswick
33°55'55"
78003'56"
1.60
01284 - Non -Discharge Application Rate
0.5
12
inches
GC-4N
Town of Oak Island
Brunswick
33°55'52"
78003'48"
.60
01284 - Non -Discharge Application Rate
0.5
12
inches
GC-4Y
Town of Oak Island
Brunswick
33055'47"
78003'50"
5.30
01284 - Non -Discharge Application Rate
0.5
22
inches
Total Conjunctive Reclaimed Water Irrigation Area
25.6
WQ0005790 Version 1.5 Attachment B Pagel of 4

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WQ0005790 Version 1.5 Attarlqient B
age 2 of 4

y
J
ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS (continued)
Town of Oak Island
Permit Number: WQ0005790 Version: 1.5-
HIGH RATE INFILTRATION BASIN
APPLICATION LIMITATIONS
Basin / Field
Owner
County
Latitude
Longitude
Net
Acreage
Dominant
Soil Series
Parameter
Loading Rate
HIGH RATE POND
Town of Oak Island
Brunswick
33055'60"
78°04'00"
1.61
01284 - Non -Discharge Application Rate
2.57gpd/sf
TOTAL AREA OF ALL APPLICATION STIES
52.71
W
WQ0005790 Version 1.5 Attachment B Page 3 of

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WQ0005790 Version 1.5 Atta,,16 ent B age 4 of 4 `
J•

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Monitoring wells: MW-2, MW-5, MW-8, MW-9
Permit Number: WQ0005790 Version: 1.5
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Daily Minimum
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
82546
Water level, distance from measuring point
feet
feet
3 x year
Calculated
1,2,3,7
00400
pH
6.5
s.u.
8.5
S.U.
3 x year
Grab
1,7
31616
Coliform, Fecal MF, M-FC Broth, 44.5 C
# 100/ml
# I00/ml
3 x year
Grab
1,7
70300
Solids, Total Dissolved — 180 Deg. C
mg/1
500
mg/l
3 x year
Grab
1,7
00680
Carbon, Total Organic (TOC)
mg/1
mg/l
3 x year
Grab
1,6,7
00940
Chloride (as Cl)
mg/1
250
mg/1
3 x year
Grab
1,7
00610
Nitrogen, Ammonia Total (as N)
mg/1
1500
mg/1
3 x year
Grab
1,7
00620
Nitrogen, Nitrate Total (as N)
mg/1
10
mg/l
3 x year
Grab
1,7
78732
Volatile Compounds (GC/MS)
mg/1
mg/l
Annually
Grab
1,4,5,7
1. 3 x Year monitoring shall be conducted in February, June & October; Annual monitoring shall be conducted every October.
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 measuring 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, PQL at 0.5 ug/L or less
C. EPA Method 8021, Low Concentration, PQL at 0.5 µg/L or less
d. EPA Method 8260, Low Concentration, PQL at 0.5 µg/L or less
e. Another method with prior approval by the Aquifer Protection Section Chief
Any method used must meet the following qualifications:
a. A laboratory must be DWQ 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 µg/L or less that must be supported by laboratory proficiency studies as required by the DWQ Laboratory Certification Unit. Any constituents
detected above the MDL but below the PQL 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 Aquifer Protection Supervisor, telephone
number [phone], must be contacted immediately for further instructions regarding any additional follow-up analyses required. ,
s:.
6. If TOC concentrations greater than 10 mg/L are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents '.r.
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 this attachment.
WQ0005790 Version 1.5 Attachment C Page 1 of 1

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