WQ0005790_Final Permit_20010523

j�ilZsrn irMichael F. Easley
Governor
William G. Ross, Jr. Secretary
Department of Environment and Natural Resources
Kerr T. Stevens
Division of Water Quality
May 23, 2001 r- . -
Honorable Joan P. Altman, Mayor
Town of Oak Island
4601 E. Oak Island Drive
Oak Island, North Carolina 28465-7608
SUBJECT: Town of Oak Island
Modified Permit No. WQ0005790
Spray Irrigation
Project No. E-SRG-T-99-0044
Brunswick County
Dear Mayor Altman:
In accordance with your application received May 15, 2001, we are forwarding herewith
modified Permit No. WQ0005790 dated May 23, 2001, to the Town of Oak Island for the
construction and operation of the subject spray irrigation addition to the existing high rate
infiltration system. The primary purpose of this permit modification is to add a liner to the spray
irrigation 3.4 MG effluent storage pond.
This permit shall be effective from the date of issuance until May 31, 2006, shall void
Permit No. WQ0005790 issued May 17, 1999, and shall be subject to the conditions and
limitations as specified therein. Your attention is drawn to the additional reporting requirements
as stated in Condition 111, 4 of the modified permit.
If any parts, requirements, or limitations contained in this permit are unacceptable to you,
you have the right to an adjudicatory hearing upon written request within thirty (30) days
following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150B of North Carolina General Statutes, and filed with the Office of
Administrative Hearings, 6714 Mail Service Center, Raleigh, N. C. 27699-6714. Unless such
demands are made, this permit shall be final and binding.
One (1) set of final approved plans and specifications is to be forwarded to you, one (1) set
retained for our files.
A copy of the approved plans and specifications shall be maintained on file by the Owner
for the life of the project.
NCD ft
Customer Service 1 800 623-7748 Construction Grants & Loans Section 1633 Mail Service Center Raleigh, NC 27699-1633 [phone]
FAX [phone] E-Mail Address www.nccgl.net

Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the approved plans and specifications. Mail the
Certification to the Non -Discharge Branch, 1617 Mail Service Center, Raleigh, North Carolina
27699-1617. (Engineer's Certification Form is attached.)
If there are any questions concerning this matter, please contact Mr. Cecil G. Madden, Jr.,
P. E. at [phone].
Sincerely,
Z ,
L✓
eterr. Stevens
nr
Attachment
kp:nw
cc: Jerry A. Walters, Town Manager
George FinchBoney and Associates (Attn: G. Robert Graham, P.E.)
Brunswick County Health Department
Wilmington Regional Office
Groundwater Section
,Non -Discharge Permit Unit
Dan Blaisdell, P.E.
Don Evans
CIU
DMU
SRG

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
SPRAY IRRIGATION/ HIGH RATE INFILTRATION SYSTEM PERMTT
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 180,000 GPD high rate infiltration system which consists of the following:
a 400,000 GPD wastewater treatment facility which consists 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, 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, on -site standby
generator, a dosing pump station which discharges to a 180,000 GPD capacity wastewater disposal
system which consists of a 69,900 square foot rapid infiltration bed; and
construction and operation of spray irrigation facilities to initially provide 76,800 GPD of additional
capacity for disposal of reuse -quality effluent, said additions to consist of a lined 3.4 MG effluent
storage pond (with 15 days storage capacity based on an ultimate irrigation disposal
rate of 256,800 GPD) and an unlined 1.5 MG (5 day) capacity "upset" detention pond; dual 600 GPM
submersible irrigation pumps to replace existing pumps in the effluent wet well; meter for continuous
on-line monitoring of effluent turbidity; an emergency bypass system for diversion of non -reuse
quality effluent to the 5-day detention pond in the event of a plant upset; approximately 2600 linear
feet of 8-inch force main to a 6.3 acre spray irrigation area north of the existing plant; a 3-zone
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irrigation system with 59 sprinklers at the new north spray field; a zoned irrigation system with 40
sprinklers for disposal of treated effluent on 4.7 acres at the existing plant site; and a 100 KW
portable generator to provide emergency standby power for irrigation;
to serve the Town of Oak Island with no discharge of wastes to the surface waters
pursuant to the application received May 15, 2001 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 May 31, 2006, shall void Permit
No_ WQ0005790 issued May 17, 1999, and shall be subject to the following specified conditions and
limitations:
SECTION I
PERFORMANCE STANDARDS
l . Upon completion of construction and prior to operation of the newly installed spray
irrigation facilities, a certification must be received from a professional engineer
certifying that the new facilities have been installed in accordance with this permit, the
approved plans and specifications. Mail the certification to the Permits and Engineering
Unit, Division of Water Quality, 1617 Mail Service Center, Raleigh, NC 27699-1617.
2. The Wilmington Regional Office, phone no. [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the new spray irrigation facilities so that
an in -place inspection can be made. Such notification to the regional supervisor shall be
made during normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through
Friday, excluding State Holidays.
3. The permitted facilities, including the new spray irrigation system, shall be properly
maintained and operated at all times so that there is no discharge of wastewater to the
surface waters, which will render there unsatisfactory for normal use.
4. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions or failure of the irrigation areas or infiltration basin to adequately
absorb the treated wastewater, the Permittee shall take immediate action to correct the
problem, including such actions as may be required by the Division of Water Quality.
5. The issuance of this permit shall not relieve the Permittee of the responsibility for
damages to groundwater or surface water resulting from the operation of this facility.
6. The residuals generated from these treatment facilities must be disposed of in accordance
with General Statute 143-215.1 and in a manner approved by the North. Carolina
Division of Water Quality.
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Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
Adequate measures shall be taken to direct stormwater from the high rate infiltration area
and to prevent wastewater run-off.
9. The following buffers shall be maintained:
a) 500 feet between high rate infiltration unit and any public surface water supply or
public shallow potable water well,
b) 100 feet between high rate infiltration unit and any "SA" classified surface waters,
c) 50 feet between high rate infiltration unit and any other surface waters,
d) 100 feet between high rate infiltration unit and property lines,
e) 50 feet between treatment units and property lines,
f) 50 feet between high rate infiltration unit and other treatment units and public right
of ways, and
g) 200 feet between high rate infiltration unit and any groundwater drainage system,
h) 100 feet between the edge of spray irrigation wetted area and any "SA" surface
waters,
i) 100 feet between the edge of spray irrigation wetted area and any potable water
supply well,
j) 10 feet between the edge of spray irrigation wetted area and any nonpotable well.
SECTION II
OPERATION AND MAINTENANCE REQuIREMENTs
The facilities shall be properly maintained and operated at all times.
2. The Permittee shall employ a certified wastewater treatment plant operator to be in
responsible charge of the wastewater treatment facilities. The operator must hold a
certificate of the grade at least equivalent to the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the
conditions of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III, and IV facility at least daily,
excluding weekends and holidays, and must properly manage and document daily
operation and maintenance of the facility and must comply with all other conditions of
Title 15A, Chapter 8A, .0202.
3. 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 these maintenance activities. The Permittee may request an increased loading
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limit in the future based on demonstrated improvements in performance of the high rate
infiltration system.
4. Disposal by spray irrigation shall initially be limited to 76,800 GPD. The following
maximum application rates shall apply to the spray irrigation system:
Irrigation Site Zone Wetted Area Maximum Application
inches/wk Rate gal./day
North 1, 2, 3 6.3 Ac. 2" 48,870 gal./day
Plant 4, 4A 2.2 1" 8,533
Plant 5, 5A 2_5 2" 19,393,
11.0 Ac. 76,796 gal./day
The Permittee shall maintain records of all spray irrigation activity and may request an
increased irrigation disposal limit in the future based on a minimum of two years
demonstrated satisfactory performance.
5. A suitable vegetative cover shall be maintained at all tunes on the spray irrigation areas.
6. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater outside of the high rate infiltration disposal area
and spray irrigation areas.
7. Spray irrigation shall not be performed during inclement weather or when the ground is
in a condition that will cause runoff.
8. No traffic or equipment shall be allowed on the disposal areas except while installation
occurs or while normal maintenance is being performed.
9. Minimum free board of 2 feet shall be maintained below the top of the containment
berms of the high rate infiltration basin, irrigation storage pond, and 5-day detention
pond.
10. The screenings removed from the wastewater treatment plant shall be properly disposed
in a sanitary landfill or by other means which have been approved by this Division.
11. An automatically activated standby power source 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.
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12. The flow measurement device shall be calibrated annually by the representative of a firm
which is routinely engaged in the calibration of flow measurement devices. Records of
this calibration, including all information pertinent to the calibration, shall be available
during any inspection by Division staff.
13. The application of chemicals to the infiltration bed is expressly prohibited unless
otherwise approved by the Wilmington Regional Office.
14. Diffusers shall be cleaned as needed to ensure that adequate aeration is provided.
Records of this maintenance shall be maintained by the permittee.
15. The rapid infiltration system shall be inspected daily. A records of all maintenance shall
be recorded in the daily operations log for the facility.
SECTION III
MONITORING AND REPORTING REQUIREMENTS
Any monitoring deemed necessary by the Division of Water Quality to insure surface and
ground water protection will be established and an acceptable sampling reporting
schedule shall be followed.
2. Adequate records shall be maintained by the Permittee tracking the amount of
wastewater disposed by spray irrigation. These records shall include, but are not
necessarily limited to, the following information:
a. date of irrigation,
b. volume of wastewater irrigated
c. field irrigated,
d. length of time field is irrigated,
C. continuous weekly, monthly, and year to date hydraulic (inches/acre) loadings for
each field,
f. weather conditions, and
g. maintenance of cover crops.
3. As an indicator of proper operation and maintenance, the facility shall produce an
effluent in compliance with the following limitations:
Parameter Monthly Average a DailyMaximgm'
Flow 256,800 GPD
BOD5(5-day, 20°C) 10 rng/l
NH3 as N 4 mg/1
TSS 20 mg/l
on

Parameter Monthly Average a Daily Maximum`
Fecal Coliform 14 per 100 mP 43 per 100 ml
Monthly averages for all but fecal coliform shall be the arithmetic mean of all
samples collected during the reporting period.
s Monthly average for fecal coliform shall be the geometric mean of all samples
collected during the reporting period.
Daily maximum shall be the maximum value of all samples collected during the
reporting period.
The effluent from the subject facilities shall be monitored by the Permittee at the point
prior to discharge to the infiltration basin or irrigation storage lagoon for the following
parameters:
Parameter Sampling
Point
Flow Influent or Effluent
BOD5 (5-day, 20°)
Effluent
NH3 as N
Effluent
TSS
Effluent
Fecal Coliform
Effluent
Settleable Matter
Effluent
Residual Chlorine
Effluent
NO3
Effluent
TDS
Effluent
TOC
Effluent
Chloride
Effluent
Samulinsz Freauenc
Continuous
*2/Month
*2/Month
*2/Month
*2/Month
Daily
Daily
**Triannually
**Triannually
**Triannually
* *Triannually
hype of SmPle
Recording
Composite
Composite
Composite
Composite
Grab
Grab
Grab
Grab
Grab
Grab
The effluent pH shall not be less than 6.9 standard units nor greater than 9.0 standard units.
* 2/Month sampling frequency only during the months of April through October. During
the remainder of the year, these parameters shall be monitored monthly.
** Triannual sampling shall be conducted during February, June and October.
If groundwater sampling indicates or predicts problems with compliance with of the
Groundwater Standards, this permit will be modified to include additional and/or more
restrictive limitations.
4. Three (3) copies of all operation and disposal records (as specified in condition III 2) on
Form NDAR-1 and three (3) copies of all effluent monitoring data (as specified in
condition III 3) on Form NDMR-1 shall be submitted on or before the last day of March,
July and November. All information shall be submitted to the following address:
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NC Division of Water Quality
Water Quality Section
Non -Discharge Compliance/Enforcement Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
A record shall be maintained of all residuals removed from this facility. The record shall
include the name of the hauler, the permit authorizing the disposal or a letter from a
municipality agreeing to accept the residuals, the date the residuals were hauled and the
volume of residuals removed.
6. A maintenance log shall be maintained at this facility including, but not limited to, the
following items:
a. Daily sampling results including residual chlorine, settleable matter, and dissolved
oxygen in the aeration basin and at the clarifier weir;
b. Visual observations of the plant and plant site;
C. Record of preventative maintenance (changing of filters, adjusting belt tensions,
alarm testing, diffuser inspections and cleanings, etc.);
d. Date of calibration of flow measurement device; and
e. Date and results of power interruption testing on alternate power supply.
7. NONCOMPLIANCE NOTIFICATION:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone
no. [phone], 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 wastewater treatment facility which results in the treatment
of significant amounts of wastes which are abnormal in quantity or characteristic,
such as the dumping of the contents of a sludge digester, the known passage of a
slug of hazardous substance through the facility, or any other unusual
circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate wastewater treatment such as mechanical or electrical
failures of pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-
pass directly to receiving waters without treatment of all or any portion of the
influent to such station of facility.
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d. Any time that self -monitoring information indicates that the facility has gone out
of compliance with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report m letter
form within fifteen (15) days following first knowledge of the occurrence.
This report must outline the actions taken or proposed to be taken to ensure that the
problem does not recur.
Section IV
GROUNDWATER REQUIREMENTS
Within 2 %2 years of initiating operation of the irrigation storage pond/spray irrigation
activities, the Town of Oak Island must present a groundwater impact analysis report to
the Division of Water Quality/Groundwater Section. This report must include (but not
necessarily be limited to) the following:
a. a summary and discussion of the groundwater compliance data collected to date at
all of the monitoring wells, and
b. a groundwater mounding analysis which considers the infiltration pond, the
irrigation storage pond, and the irrigation zones 4, 4a, and 5. This analysis must be
calibrated as closely as possible to historical groundwater level measurements
while using historical pond loading rates.
The purpose of the groundwater impact analysis is to accurately assess the combined
groundwater impacts of the infiltration pond, and irrigation storage pond, and the spray
irrigation zones 4, 4a, and 5.
2. Within sixty (60) days of permit reissuance, monitoring wells MW-1 and MW-3 shall be
abandoned according to 15A NCAC 2C .0113 (Abandonment of Wells) in the 15A
NCAC 2C .0100 Well Construction Standards.
3. Within sixty (60) days of permit reissuance, monitoring wells MW-4 shall be abandoned
according to 15A NCAC 2C .0113 (Abandonment of Wells) in the 15A NCAC 2C .0100
Well Construction Standards unless the Town of Oak Island desires to retain the
monitoring well for their own future monitoring needs.
4. Prior to beginning waste disposal operations in spray irrigation zone 4 & 5, one
monitoring well, named MW-5, shall be installed to monitor groundwater quality. And
one additional monitoring well, named MW-6, shall be installed to monitor the local
groundwater table. The wells shall be constructed such that the water level in the well is
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never above or below the screened (open) portion of the well at any time during the year.
The general location and name for each well is marked on Attachment A. The
monitoring well MW-5 shall be located at the review boundary, constructed in
accordance with this permit, and approved by the Wilmington Regional Office. And
monitoring well MW-6 shall be located down -gradient of the irrigation storage pond,
constructed in accordance with this permit, and approved by the Wilmington Regional
Office.
5. All wells that are constructed for purposes of groundwater monitoring shall be
constructed in accordance with 15A NCAC 2C .0108 (Standards of Construction for
Wells Other than Water Supply) and any other state and local laws and regulations
pertaining to well construction.
6. The Wilmington Regional Office, telephone no. [phone], shall be notified at least
forty-eight (48) hours prior to the construction of any monitoring well so that an
inspection can be made of the monitoring well locations. Such notification to the
regional groundwater supervisor shall be made during the normal office hours from 8:00
a.m. until 5:00 p.m. on Monday through Friday, excluding state holidays.
7. Within sixty (60) days of completion of monitoring wells MW-5 and MW-6, the
permittee shall submit two original copies of a scaled topographic map (scale no greater
than 1 ":100') signed and sealed by a professional engineer or a state licensed land
surveyor that indicates all of the following information:
a. the location and identity of each monitoring well,
b. the location of all components of the waste disposal system,
C. the location of all property boundaries,
d. the latitude and longitude of the established horizontal control monument,
e. the relative elevation of top of the well casing (which shall be known as the
"measuring point"), and
f. the depth of water below the measuring point at the time the measuring point is
established.
This survey shall be conducted using approved practices outlined in North Carolina
General Statutes Chapter 89C and the North Carolina Administrative Code Title 21,
Chapter 56. The surveyor shall establish a horizontal control monument on the property
of the waste disposal system and determine the latitude and longitude of this horizontal
control monument to a horizontal positional accuracy of +/-10 feet. All other features
listed in a. through e. above shall be surveyed relative to this horizontal control
monument. The positional accuracy of features listed in a. through e. above shall have a
ratio of precision not to exceed an error of closure of 1 foot per 10,000 feet of perimeter
of the survey. Any features located by the radial method will be located from a minimum
of two points. Horizontal control monuments shall be installed in such a manner and
10

inade of such materials that the monument will not be destroyed due to activities that
may take place on the property. The map shall also be surveyed using the North
American Datum of 1983 coordinate system and shall indicate the datum on the map.
All bearings or azimuths shall be based on either the true or NAD 83 grid meridian. If a
Global Positioning System (GPS) is used to determine the latitude and longitude of the
horizontal control monument, a GPS receiver that has the capability to perform
differential GPS shall be used and all data collected by the GPS receiver will be
differentially corrected.
The maps and any supporting documentation shall be sent to the Groundwater Section,
NC Division of Water Quality, 1636 Mail Service Center, Raleigh, NC, 29699-1636.
8. Within thirty (30) days of completion of all well construction activities, a certification
must be received from a professional engineer or a licensed geologist certifying that the
monitoring wells are located and constructed in accordance with the Well Construction
Standards (15A NCAC 2C) and this permit. This certification should be submitted with
copies of the Well Completion Form (GW-1) for each well_ Mail this certification and
the associated GW-1 forms to the Permits and Compliance Unit, Groundwater Section,
1636 Mail Service Center, Raleigh, NC, 27699-1636.
9. For the initial sampling of the well as specified elsewhere in the permit, the permittee
shall submit a copy of the GW-1 Form (Well Completion Form) with the Compliance
Monitoring Form (GW-59) for that well. Compliance Monitoring Forms that do not
include copies of the GW-1 form will be returned to the permittee without being
processed. Failure to submit these forms as required by this permit may result in the
initiation of enforcement activities pursuant to NC General Statutes 143-215.6.
10. Monitoring well MW-5 shall be sampled initially after construction (and prior to spray
irrigation of zones 4 & 5 and bringing the 5-day upset pond on-line) for the following
parameters:
Water Level pH
Chloride Total Dissolved Solids (TDS)
Fecal Coliforms Total Organic Carbon (TOC)
Nitrate (NO3) Total Ammonia
"Volatile Organic Compounds" (VOCs) by only one of the following methods:
a. Standard Method 6230D, Practical Quantitation Level (PQL) at .5 µg/L or less
b. Standard Method 6210, PQL at .5 mg/L or less
C. EPA Method 8021, Low Concentration, PQL at .5 µg/L or less
d. EPA Method 8260, Low Concentration, PQL at .5 yg/L or less
e. Another method with prior approval by the Groundwater Section Chief
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11
Any of the reference methods used for VOCs must at a minimum, include all the
constituents listed in Table VIII of Standard Method 6230D. Any method must provide a
PQL of.0.5 ug/1 or less, which must be support by laboratory proficiency studies as
required by the DWQ Laboratory Certification Unit. Any constituents detected above the
Method Detection Limit (MDL) but below the PQL of 0.5 ug/l must be qualified
(estimated) and reported.
Any laboratory selected to analyze parameters must be Division of Water Quality (DWQ)
certified for those parameters required.
The measurement of water levels must be made prior to sampling for the remaining
parameters. The depth to water in each well shall be measured from the surveyed point
on the top of the casing.
The measuring points (top of well casing) of the monitoring well shall be surveyed to
provide the relative elevation of the measuring point for each monitoring well.
If any volatile organic compounds are detected by the methods listed, then the
Wilmington Regional Office groundwater supervisor (telephone no. 910-395-3900) must
be contacted immediately for further instructions regarding any additional follow-up
analyses required. The results of all initial and follow-up analyses must be submitted
simultaneously.
The results of the sampling and analysis must be received on Form GW-59 (Groundwater
Quality Monitoring: Compliance Report Form) by the Groundwater Section, Permits and
Compliance Unit, 1636 Mail Service Center, Raleigh, N.C. 27699-1636 on or before the
last working day of the month following the sampling month.
Monitoring wells MW-2 and MW-5 shall be sampled every February, June and October
for the following parameters:
Water Level pH
Chloride Total Dissolved Solids (TDS)
Fecal Coliforms Total Organic Carbon (TOC)
Nitrate (NOD Total Ammonia
"Volatile Organic Compounds" (VOCs) - In October Qnly by one of the following
methods:
a. Standard Method 6230D, Practical Quantitation Level (PQL) at .5 µg/L or less
b. Standard Method 6210, PQL at .5 ug/L or less
C. EPA Method 8021, Low Concentration, PQL at .5 ,ug/L or less
d. EPA Method 8260, Low Concentration, PQL at .5 �4g/L or less
e. Another method with prior approval by the Groundwater Section Chief
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Any of the reference methods used for VOCs must at a minimum, include all the
constituents listed in Table VIII of Standard Method 6230D. Any method must provide a
PQL of 0.5 ug/1 or less, which must be support by laboratory proficiency studies as
required by the DWQ Laboratory Certification Unit. Any constituents detected above the
Method Detection Limit (MDL) but below the PQL of 0.5 ug/1 must be qualified
(estimated) and reported.
Any laboratory selected to analyze parameters must be Division of Water Quality (DWQ)
certified for those parameters required.
The measurement of water levels must be made prior to sampling for the remaining
parameters. The depth to water in each well shall be measured from the surveyed point
on the top of the casing.
The measuring points (top of well casing) of the monitoring well shall be surveyed to
provide the relative elevation of the measuring point for each monitoring well.
If any volatile organic compounds are detected by the methods listed, then the
Wilmington Regional Office groundwater supervisor (telephone number: 910-395-3900)
must be contacted immediately for further instructions regarding any additional follow-
up analyses required. The results of all initial and follow-up analyses must be submitted
simultaneously.
The results of the sampling and analysis must be received on Form GW-59 (Groundwater
Quality Monitoring: Compliance Report Form) by the Groundwater Section, Permits and
Compliance Unit, 1636 Mail Service Center, Raleigh, N.C. 27699-1636 on or before the
last working day of the month following the sampling month.
12. Monitoring well MW-6 shall be sampled monthly for the following parameter:
Water Level
The depth to water in each well shall be measured from the surveyed point on the top of
the casing.
The measuring points (top of well casing) of the monitoring well shall be surveyed to
provide the relative elevation of the measuring point for each monitoring well.
The results of the sampling and analysis must be compiled and received on Form GW-59
(Groundwater Quality Monitoring: Compliance Report Form) by the Groundwater
Section, Permits and Compliance Unit, 1636 Mail Service Center, Raleigh, N.C. 27699-
1636 along with the other GW-59 forms (which are sent in three times/year).
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13. In accordance with 15A NCAC 2H.0219(k)(1)(C)(i)(1I1), the Compliance Boundary and
Review Boundary for disposal systems using reclaimed domestic or municipal water are
both established at the property boundary. An exceedance of Groundwater Quality
Standards at or beyond the Compliance/Review Boundaries is subject to immediate
remediation action in accordance with 15A NCAC 2L.0108, in addition to the penalty
provisions applicable under General Statute 143-215.6A(a)(1)_
14. Any additional groundwater quality monitoring, as deemed necessary by the Division,
shall be provided.
SECTION V
INSPECTIONS
Adequate inspection, maintenance, and cleaning shall be provided by the Pennittee to
insure proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal
facilities to prevent malfunctions and deterioration, operator errors and discharges which
may cause or lead to the release of wastes to the environment, a threat to human health,
or a nuisance. The Permittee shall keep an inspection log or summary including at least
the date and time of inspection, observations made, and any maintenance, repairs, or
corrective actions taken by the Permittee. This log of inspections shall be maintained by
the Permittee for a period of three (3) years from the date of the inspection and shall be
made available upon request to the Division of Water Quality or other permitting
authority.
Any duly authorized officer, employee, or representative of the Division of Water
Quality may, upon presentation of credentials, enter and inspect any property, premises
or place on or related to the disposal site and facility at any reasonable time for the
purpose of determining compliance with this pen -nit; may inspect or copy any records
that must be kept under the terms and conditions of this permit; or may obtain samples of
groundwater, surface water, or leachate.
SECTION VI
GENERAL CONDITIONS
1. This permit shall become voidable unless the facilities are constructed in accordance
with the conditions of this permit, the approved plans, specifications, and other
supporting data.
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2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee, a formal permit request must be
submitted to the Division of Water Quality accompanied by an application fee,
documentation from the parties involved, and other supporting materials as maybe
appropriate. The approval of this request will be considered on its merits and may or
may not be approved.
4. Failure to abide by the conditions and limitations contained in the permit may subject the
Permittee to an enforcement action by the Division of Water Quality in accordance with
North Carolina General Statute 143-215.6.
The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, .regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
6. Prior to any transfer of this land, a notice shall be given to the new owner that gives full
details of the materials applied at this site.
7. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of the project.
8_ The Permittee, at least six (6) months prior to the expiration of this permit, shall request
its extension. Upon receipt of the request, the Commission will review the adequacy of
the facilities described therein, and if warranted, will extend the permit for such period of
time under such conditions and limitations as it may deem appropriate.
Modified Permit issued this the 23nd day of May, 2001
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Kerr"71 Sthvens Director
Div' . n of Water Quality
By A thority of the Environmental Management Commission
Permit No. WQ0005790
i5

PERMIT NumBER WQ0005790
TOWN OF OAK ISLAND
ENGINEER'S CERTIFICATION
1, , as a duly registered Professional Engineer in the
State of North Carolina, having been authorized to observe (periodically/weekly/full time) the
construction of the modifications and improvements to the Town of Oak Island Wastewater
Treatment Plant, located on Fish Factory Road in Brunswick County for the Town of Oak Island,
hereby state that, to the best of my abilities, due care and diligence was used in the observation of the
following construction:
spray irrigation facilities to initially provide 76,800 GPD of additional capacity for disposal of reuse -
quality effluent, said additions to consist of a lined 3.4 MG effluent storage pond (with 15 days
storage capacity based on an ultimate irrigation disposal rate of 220,000 GPD) and an unlined 1.5 MG
(5 day) capacity "upset" detention pond; dual 600 GPM submersible irrigation pumps to replace
existing pumps in the effluent wet well; meter for continuous on-line monitoring of effluent turbibity;
an emergency bypass system for diversion of non -reuse quality effluent to the 5-day detention pond in
the event of a plant upset; approximately 2600 linear feet of 8-inch force main to a 6.3 acre spray
irrigation area north of the existing plant; a 3-zone irrigation system with 59 sprinklers at the new
north spray field; a zoned irrigation system with 40 sprinklers for disposal of treated effluent on 4.7
acres at the existing plant site; and a 100 KW portable generator to provide emergency standby power
for irrigation.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature
Date
Registration No.
Mail this Certification to the Non -Discharge Permit Unit
DENR/DWQ
1617 Mail Service Center
Raleigh, NC 27699-1617

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