WQ0023261_Final Permit_20100528

HCDEHit
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H, Sullins
Governor Director
May 28, 2010
Mr. Jeffrey L. Pearson— Executive Director
Onslow Water and Sewer Authority
Post Office Box 1415
Jacksonville, North Carolina 28540
Dear Mr. Pearson:
Dee Freeman
Secretary
Subject: Permit No. WQ0023261
Swansboro WWTF
Conjunctive Reclaimed Water /
Utilization System
Onslow County
In accordance with your permit minor modification request received March 29, 2010, we are
forwarding herewith Permit No. WQ0023261, dated May 28, 2010, to the Onslow Water and Sewer
Authority for the continued operation of the subject wastewater treatment and conjunctive reclaimed
water wastewater irrigation facilities.
The following modifications to the subject permit are as follows: Four pre-existing sand filter -
drying beds have been added to the descriptive portion of -the permit describing the wastewater treatment
facilities. It is the Division's understanding that these drying beds were installed a number of years ago
but have been inactive, and a recent site visit has confirmed that the drying beds are in need of renovation
that will include the replacement and grading of sand in each of the drying beds. The additional seepage
from the drying beds will need to be estimated and recorded, as it is an additional source of flow to the
treatment plant, and the records kept on site for no less than five years. Please .examine Permit Conditions
1.L,1.2., III.1., and IV.9. for requirements associated with the renovation and inclusion of the four drying
beds in the facility treatment process. In order to accommodate staffing schedules, the frequency of
Effluent Sampling for Residual Chlorine (Index Number 50060) and Settleable Solids (Index Number
00545), as presented under PPI 001 of Attachment A, has been changed from "Daily — all days" to "Daily
-- weekdays". Please also note that three groundwater monitoring wells are to be constructed within 90
days of permit issuance, and that the wells will be part of an ongoing groundwater monitoring program
that will include surface water monitoring. The requirements associated with constructing and monitoring
these wells are described in Permit Conditions 1.3., L4.,11.5., IV.12., IV.13., IV.14., Attachment C, and in
Figures 1, 2, and 3. Surface water monitoring is addressed in Permit Condition IV.12., Attachment C, and
in Figure 3.
This permit shall be effective from the date of issuance until September 25, 2014, shall void
Permit No. WQ0023261 issued October 27, 2009, and shall be subject to the conditions and limitations as
specified therein. Please note that the format of the permit has been updated and some of the wording has
AQUIFER PROTECTION SECTION
1636 Mail Service Center, Raleigh, North Carolina 27699-1636
Location: 2729 Capital Boulevard, Raleigh, North Carolina 27604 011C
Phone: [phone] \ FAX 1: 919-715-0588; FAX 2: 919-715-60481 Customer.Senrim 1-877-623-6748 N oftb Carolina
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Mr. Jeffrey L. Pearson
May 28, 2010
Page 2 of 2
been revised. Please also 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. The results of Fecal Coliform testing (Index Number 31616) of the facility's effluent (PPI
007 on Attachment A) should be reported in the units of "Most Probable Number per 100 milliliters"
(mpnll ooml).
If any parts, requirements or limitations contained in this permit are unacceptable, the Perxnittee
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.
If you need additional information concerning this matter, please contact David Goodrich at (919)
715-6162 or david,[e-mail].
Sincerely,
f�
oleen H. Sullins
cc: Onslow County Health Department
Wilmington Regional Office, Aquifer Protection Section
Permit File WQ0023261
Notebook File WQ0023261

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
CONJUNCTIVE RECLAIMED WATER IRRIGATION SYSTEM 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
Onslow Water and Sewer Authority
Onslow County
FOR THE
continued operation of a 600,000 gallon per day (GPD) wastewater treatment and conjunctive reclaimed
water utilization facility consisting of:
Wastewater Treatment Facilities
a 123,000 gallon equalization basin, two 22-foot diameter, 12-foot side water depth secondary clarifiers, a
dual rotating cloth disk filters with automatic backwash, an influent flowmeter, a headworks structure
including a 1.5 mgd mechanical semi -cylindrical screen with screw conveyer, a 1.5 rngd vortex grit
removal chamber system, 'and manual bar screen, a 300,000 gallon oxidation ditch including two
horizontal 42-inch diameter blade aeration rotor/motor assemblies, and an adjustable weir plate, an
oxidation ditch flow splitter box (distribution box ##1), a 300,000 gallon oxidation ditch (ditch #2) with
two (2) horizontal 42-inch diameter blade aeration rotor/motor assemblies, and one adjustable effluent
weir, an 18-inch transfer pipe with sluice gate between the two oxidation ditches, and a 1,667 gpm recycle
pump between the two ditches, a 32-foot diameter, 12-foot side water depth center -fed secondary
clarifier, a clarifier flow splitter box (distribution box #2), a 1.5 mgd UV disinfection facility consisting of
three (3) banks in series (2 banks duty, 1 bank redundant), a turbidity meter, an effluent reclaimed water
pump station consisting of three (3) 521 gpm, 30 hp vertical turbine pumps, a three-way control effluent
valve, and pumped effluent magnetic flowmeter, a 4.28 million gallon upset pond lined with 60 mil
HDPE synthetic liner, and a upset pond pump station including a 210 gpm pump, RAS/WAS pump
station including dual 520 gpm pumps, and 15 hp pumps, a chlorination feed system for internal WWTP
algae maintenance, a 46,900 gallon sludge digester, a 500 gpm, 8 hp sludge transfer pump, a 315,000
gallon sludge holding stainless steel tank with fine bubble diffusers, dual 806 scfm, 40 hp air blowers, a
sludge loading station (for trucks) with 500 gpm sludge transfer pump, one 350 kW emergency generator
with automatic transfer switch, four (4) renovated sand filter -drying beds for additional dewatering
capacity to decommission the Hunter's Creek facility tanks and for ongoing maintenance of wastewater
pump stations, and associated yard piping and appurtenances,
Reclaimed Water Distribution Force Main
approximately 32,200 linear feet of 12-inch reclaimed water force main and associated appurtenances,
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Reclaimed Water Low Rate Infiltration Basin Disposal Facility
four reclaimed water infiltration ponds (totaling 600,000 gpd disposal capacity) including Basin #1 (5.00
acres), Basin #2A (2.88 acres), Basin #2B (3.88 acres), and Basin #3 (3.48 acres), associated groundwater
underdrain trench/pipe system, and associated piping, appurtenances, and access roads,
to serve the Town of Swansboro WWTF, with no discharge of wastes to surface waters, pursuant to the
application received March 29, 2010 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 apart of this permit.
This permit shall be effective from the date of issuance until September 25, 2014, shall void Permit No.
WQ0023261 issued October 27, 2009 and shall be subject to the following specified conditions and
limitations:
I. SCHEDULES
1. Prior to the utilization of the drying beds, the sand within the beds shall be replaced and graded.
2. Prior to the utilization of the drying beds, a suitable system shall be installed to measure and record
the flow off of the drying beds that will enter the plant,
The Wilmington Regional Office, telephone number [phone], shall approve monitoring wells
MW-1, MW-2, and MW-3 prior to installation, and the monitoring wells shall be installed within 90
days of permit issuance. The regional office shall be notified at least 48 hours prior to the
construction of any monitoring well, and such 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. The monitoring wells shall be constructed such that the water level in the
monitoring well is never above or below the `screened (open) portion of the well at any time during
the year, and in accordance with 15A NCAC 02C .0108. The general location and name for each
monitoring well is marred on Figures 1, 2, and 3, or at locations directed by the Wilmington Regional
Office.
4. Within 60 days of completion of the monitoring wells, the Permittee shall submit two original copies
of a site map with a scale no greater than 1-inch equals 100 feet; however, special provisions may be
granted upon prior approval for large properties. At a minimum, the map shall include the following
information:
a. The location and identity of each monitoring well.
b. The location of major components of the waste disposal system.
c. The location of property boundaries within 500 feet of the disposal areas.
d. The latitude and longitude of the established horizontal control monument.
e. The elevation of the top of the well casing (i.e., measuring point) relative to a common datum.
f. The depth of water below the measuring point at the time the measuring point is established.
g. The location of compliance and review boundaries.
h. The date the map is prepared and/or revised.
Control monuments shall be installed in such a manner and made of such materials that the
monument will not be destroyed due to activities taking place on the property. The map and any
supporting documentation shall be sent to the Division of Water Quality, Aquifer Protection Section,
1636 Mail Service Center, Raleigh, NC 27699-1636.
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No later than six months prior to the expiration of this permit, the Permittee shall request renewal of
this permit on official Division fortes. 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
The subject non -discharge facilities, which include the reclaimed water low rate infiltration basin,
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 utilization areas to adequately assimilate 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 utilization facilities.
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.
Any sludge generated from this disposal facility 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.
4. Only tertiary treated wastewater generated from the Town of Swansboro Wastewater Treatment Plant
which meets the reclaimed water standards as defined by 15A NCAC 2T .0906 (a) (1-4) shall be
disposed of at the reclaimed water utilization facilities. If at any time the WWTP effluent does not
comply with these standards, discharge into the reclaimed water distribution system shall immediately
cease and shall not resume until the effluent meets the reclaimed water standards.
5. 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.
6. The conjunctive use of reclaimed water permitted herein in no way negates, precludes, or invalidates
the most recent reissuance of the Permittee's NPDES permit (NCO036153), and the Permittee shall
continue to comply with all conditions provided for therein.
7. The following shall be requirements for the reclaimed water distribution, storage and 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: RECLAIMED 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.
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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.
8. The Permittee shall maintain an active cross -connection control program that shall have the following
minimum requirements:
a. No direct cross -connections shall be allowed between the reclaimed water and potable water
systems.
b. Where both reclaimed water and potable water are supplied to a reclaimed water utilization site, a
reduced pressure principle backflow preventer, an approved air gap separation or other Division
of Environmental Health approved device shall be installed at the potable water service
connection to the use area. The installation of the reduced pressure principle backflow prevention
device shall allow proper testing.
c. Where potable water is used to supplement a reclaimed water utilization system, the Permittee or
potable water supplier shall approve and regularly inspect the air gap separation.
9. The compliance and review boundaries are established at the property boundary. Any exceedance of
standards at the compliance or review boundary shall require action in accordance with 15A NCAC
02L .0106.
10. The facilities permitted herein shall be constructed according to the following setbacks:
a. The setbacks for reclaimed utilization sites permitted after September 1, 2006 shall be as follows
(all distances in feet):
i. Surface waters not classified SA:
ii. Surface waters classified SA:
iii. Any well with exception to monitoring wells
25
100
100
b. The setbacks for storage and treatment units permitted after 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
M. OPERATION AND MAINTENANCE RE LT REMENTS
1. The reclaimed water utilization facilities, including the reclaimed water low rate infiltration basin
facility and the drying beds, 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.
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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.
3. Only reclaimed water from the Town of Swansboro's wastewater treatment plant shall be utilized in
the Reclaimed Water Low Rate Infiltration Basins listed in Attachment B.
4. Public access to the reclaimed water low rate infiltration basin facility site shall be controlled during
active site use. Such controls may include the posting of signs showing the activities being conducted
at each site. A sign shall be posted in plain sight showing these activities.
Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is
prohibited, unless diverted to an alternate treatment or collection system.
6. 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, all wastewater shall be handled in
one of two ways, until the levels have stabilized below these maximum levels_ The Town of
Swansboro Wastewater Treatment Plant may further treat the wastewater to bring it into compliance
with reclaimed water standards without returning the water to the facility's headworks, or may reroute
it to the headworks of the wastewater treatment facility for treatment to reuse standards.
IV. MONITORING AND REPORTING REQUIREMENTS
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-1.
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.
4. Flow distributed to the conjunctive reclaimed water system shall be continuously monitored, and
daily flow values shall be reported on Form NDMR-1. Infiltration at the Reclaimed Water Low Rate
Infiltration Basin Disposal Facility shall be continuously monitored and daily flow values shall be
reported on Form NDAR-1.
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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 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.
5. The Permittee shall monitor the effluent from the subject facilities at the frequencies and locations for
the parameters specified in Attachment A. Fecal Coliform levels are to be reported in units of "Most
Probable Number per 100 milliliters" (mpn/100ml).
The Permittee shall maintain adequate records tracking the amount of wastewater disposed at the
Town of Swansboro Reclaimed Water Low Rate Infiltration Basin Disposal Facility, and reported on
Form NDAR-2. At a minimum, these records shall include the following information for each
infiltration basin listed in Attachment B:
a. Date and time of wastewater volume infiltrated to each basin, reported as reclaimed water
effluent flow pumped into each basin, as used, and recorded using a recording mechanism;
b. Continuous weekly, monthly, and year-to-date hydraulic (gpolft) loadings for each basin; and
c. Weather conditions.
7. The Permittee shall maintain adequate records tracking the amount of reclaimed water distributed or
utilized. At a minimum, these records shall include the following information for each utilization site
listed in Attachment B:
a. Date of distribution or utilization;
b. Volume of reclaimed water distributed or utilized (i.e., monthly total); and
c. Weather conditions (for irrigation sites owned or operated by the Pcrmittee only).
S. Three copies of all effluent monitoring data (as specified in Conditions IV.3., IVA., and 1V.5.) on
Form NDMR-1 and three copies of all operation and disposal records (as specified in Condition
IV.6.) on Form NDAR-2 for every infiltration basin 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 Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
9. The seepage flow from the drying beds, since it represents additional flow into the treatment system,
shall be estimated and recorded, and shall be available for examination. These records shall be kept at
the facility for no less than five years.
10. A maintenance log shall be maintained at the Town of Swansboro Wastewater Treatment Plant. 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. Daily sampling results including residual chlorine, settleable matter, and dissolved oxygen in the
aeration basin and at the clarifier weir.
b. Date and results of power interruption testing on alternate power supply;
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c. Date of calibration of flow measurement device;
d. Visual observations of the plant and plant site; and
e. Record of preventative maintenance (e.g., changing of filters, adjusting belt tensions, alarm
testing, inspections and cleanings, etc.).
11. A maintenance log shall be maintained at the Town of Swansboro Reclaimed Water Low Rate
Infiltration Basin Disposal 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. Visual observations of the infiltration basins.
b. Record of preventative maintenance (e.g., pump maintenance, infiltration basin maintenance,
etc.).
c. Date of calibration of flow measurement device.
12. Monitoring wells MW-1, MW-2, MW-3 and Surface Water Sampling Point SW-1 shall be sampled
after construction of the wells, and shall be sampled thereafter 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 Dermit number and the well nomenclature as provided in
Attachment C and Figures 1, 2 and 3.
13. For initial sampling of monitoring wells, the Permittee shall submit a Compliance Monitoring Form
(GW-59) and a Well Construction Record Form (GW-1) listing this permit number and the
appropriate monitoring well identification number. Initial Compliance Monitoring Forms (GW-59)
without copies of the Well Construction Record Forms (GW-1) are deemed incomplete, and may be
returned to the Permittee without being processed.
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 Forth (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:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone number (910)
796-7215, as soon as 2ossible, 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 resulting in the treatment of significant
amounts of wastes that is 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 (e.g., mechanical or electrical failures of pumps aerators, compressors,
etc.), due to known or unknown reasons, rendering the facility incapable of adequate wastewater
treatment.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass directly to
receiving surface waters without treatment of all or any portion of the influent to such station or
facility.
d. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations.
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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.
V. INSPECTIONS
1. The Permittee shall provide adequate inspection, maintenance, and cleaning to ensure proper
operation of the wastewater treatment and utilization facilities.
2. The Permittee or their designee shall inspect the wastewater treatment and 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 and 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.
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.
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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 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 28th day of May 2010
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
/ A r
CoAn H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
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ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS Permit Number: WQ0023261 Version: 1.4
PPI 001— Effluent: WWTF
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
Carbon. Total Organic (TUC) — 00680
3 X yearn
Grab
Chloride (as Cl) — 00940
3 X year
Grab
Chlorine, Total Residual — 50060
Daily - weekdays
Grab
Coliform, Fecal MF, M-FC Broth, 44.5C - 31616
14
mpn/100 ml
25
mpn/100 ml
2 X month?
Grab
Flow, in conduit or thru treatment plant - 50050
600,000
gpd
Continuous
Recorder
Nitrogen, Ammonia Total (as N) — 00610
4
mg/l
6
mg/l
2 X month"
Composite
Nitrogen, Kjeldahl, Total (as N) - 00625
2 X months
Composite
Nitrogen, Nitrate Total (as N)-00620
2 X tnonth6
Composite
p1l — 00400
6
su
9
su
3 X year
Grab
Solids, Settleable — 00545
Daily - weekdays
Grab
Solids; 'rota) Dissolved — 70295
3 X year
Grab
Solids, Total Suspended — 00530 j
5 j
mg/l
10
mg/1
2 X month'
Composite
Turbidity, HCII Turbidimiter-0007G
10
ntu
Continuous
Recorder
I. The sampling schedule for BOD shall be monthly during the months of January, February, March, November and December.
2. 3 X year sampling shall occur in March, Jul) and November.
3. The sampling schedule for Fecal Coliform shall be monthly during the months of January, February, March, November and December.
4_ The sampling schedule for Ammonia Total Nitrogen shall be monthly during the months of January, February, March, November and December.
5. The sampling schedule for Total Kjeldahl Nitrogen shall be monthly during the months of January, February, March, November and December.
6. The sampling schedule for Total Nitrate Nitrogen shall be monthly during the months of January, February, March, November and December.
7. The sampling schedule for Total Suspended Solids shall be monthly during the months of January, February, March, November and December.
WQ0023261 Version 1.4 Attachment Page 1 of

PPI 002 — Stage Level in Infiltration Pond #1
MONITORI NG
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
REQUIREMENTS
Parameter Description - PC5 Code
Monthly Average
Mean Monthly Geometric
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
Water level*, distance from measuring point - 82546
Daily — all days
Grab
*As measured in feet (freeboard below top of berm).
PPI 003 — Stage Level in Influent Pond #2A
MONITORING
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
REQUIREMENTS
Parameter Description -PCS Code
Monthly Average
Mean Monthly Geometric
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
Water level*, distance from measuring point - 82546
Daily -- all days
Grab
*As measured in feet (freeboard below top of berm).
PPI 004 — Stage Level in Infiltration Pond #4
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING
REQUIREMENTS
Parameter Description -PCS Code
Monthly Average
Mean Monthly Geometric
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
Water level*, distance from measuring point - 82546
Daily — all days
Grab
*As measured in feet (freeboard below top of berm).
PPI 005 — Stage Level in Infiltration Pond #5
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING
REQUIREMENTS
Parameter Description -PCS Cade
Monthly Average
Mean Monthly Geometric
Daily Minimum
Daily Mazimurre
Measurement
Frequency
Sample
'Type
Water level*, distance from measuring point - 82546
Daily— all days
Grab
*As measured in feet (freeboard below top of berm),
WQ00231,, Jersion 1.4 Attachment A e 2 of 2

ATTACHMENT B - APPROVED LOW RATE INFILTRATION BASINS AND LIMITATIONS Permit Number: WQ002326I Version: 1.4
Onslow Water and Sewer Authority — Town of Swansboro Wastewater Treatment Facility
UTILIZATION AREA INFORMATION
APPLICATION LIMITATIONS
Basin
Owner
County
Latitude
Longitude
Net
Acreage
Dominant
Soil Series
Parameter
Pond Surface
Loading Rate
Maximum Annual
Irrigation
Annual
Averaged
Irrigation
I
Town of Swansboro
Onslow
34043'47"
77012126"
5.00
BmB
01284 — Application Surface Irrigation
0.9044 gpd/i12
71,897,087 gallons/yr
196,980 gpd
2A
'Town of Swansboro
Onslow
34°43'33"
77012' l8"
2.88
BrnB
01284 — Application Surface Irrigation
0.9044 gpd/If
41,412,722 gallons/yr
113,460 gpd
213
Town of Swansboro
Onslow
34043732"
77612'23"
3.88
BmB
0I284—Application Surface Irrigation
0.9044 gpd/It2
55,792,139 gallons/yr
152,860 gpd
3
Town of Swansboro
Onslow
34043'32"
77°I2'39"
3.48
BmB
01284 — Application Surface Irrigation
0.9044 gpd/ft2
50,040,372 gallons/yr
13 7, 100 gpd
Tota Is
15.24
219, 142,321
600,4M
WQ0023261 Version 1.4 Attachment B Pagel oft

THIS PAGE BLANK
WQ0023_ Version 1.4 Attachment B Page 2 of 2

ATTACHMENT C — GROUNDWATER MONITORING, SURFACE WATER MONITORING, AND LIMITATIONS
Permit Number: WQ0023261 Version: 1.4
Monitoring wells: MW-1, MW-2 and MW-3
Surface Water S:iimpling Point: SW -I*
GROUNDWATER CHARACTERiSTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
Parameter Description - Parameter Code
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
Carbon, `i'otai Organic (TOC) - 00680
3 X year
Grab
1, 6,7
Chloride (as Cl) - 0094 0
250
mgll
3 X year
Crab
1,7
Coliform, Fecal MF, M-FC Broth,44.5C- 31616
3 X year
Grab
1,7
Nitrogen, Ammonia Total (as N) - 006I0
3 X year
Grab
1,7
Nitrogen, Nitrate Total (as N) - 00620
10
mg/!
3 X year
Grab
1,7
ptI - 00400
6.5 -8.5 (acceptable range)
su
3 X year
Grab
1.7
Solids; Total Dissolved - 70295
3 X year
Grab
1,7
Volatile Organic Compounds,(GUMS)--78732
Annual
Grab
1, 4, .5, 7.8
Water level, distance from measuring point- 82546
3 X year
Calculated
t, 2, 3, 7
1. 3 x Year monitoring shall be conducted in March, July & November; Annual monitoring shall be conducted every November.
2. For monitor %°ells MW-1, MW-2 and MW-3 only: The measurement of water levels shall he inade prior to purging the wells. The depth to water in cacti well shall be measured from Are surveyed
point on the top of the casing. The measurement of pIl shall be trade after purging and prior to sampling for the remaining parameters.
3. The measuring points (lop of Well casing) of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. "IUe measuring paints (top
of easing) 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 6230U. 1'Qi, at 0.5 ]ig/l, or less
b. Standard Method 621 OD. PQL at 0.5 pg/1. or less
C. EPA Method 8021, Low Concentration, PQL at 0.5 jig/I. or less
d. EPA Method 8260, Low Concentration. PQL at 0.5 pg/l, or less
e. Another tnethod with prior approval by the Aqui rer Protection Section Chief
Any method used must meet the following qualifications:
a. A laboratory must be DWQ certified to nin any tnetliod used.
b. The method used must, at a mininmrn, include all die constituents listed in Table ViIl of Standard Method 6230D_
c. The tnethod used must provide a PQL of 0.5 jig/I,or less that must be supported by laboratory proficiency studies as required by Elie DWQ Laboratory Certification Unit. Any constituents
detected above the MDL but below the PQL of 0.5 Irg/l, must be qualified (estimated) and reported.
5. If any volatile organic compounds (VOC) are detected as a result or monitoring as provided in Attachment {:, then the Wilmington Regional 01'6ce Aquifer Protection Supervisor, telephone
number [phone], trust be contacted immediately ror further instructions regarding any additional follow-up analyses required.
WQ0023261 Version 1.4 Attachment C Page I of 2

6. If TOC concentrations greater than 10 nigh are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the indiviuual constituents
comprising this TOC concentration. If the TOC concentration as measured in the background monitor well exceeds 10 mg/[, this concentration will be taken to represent the naturally occurring
TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells stall 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 Figures 1, 2, 3, and this attachment.
8. Surface Water Sampling Point SW -I shall be sampled three times a year in March, July, and November, and shall not be sampled for Volatile Organic Compounds.
* The Surface Water Sampling Point SW -I is located in the un-named stream about 80 feet from Discharge Outlet DO#1 (see Sheet 1-7).
WQ0023261 Version 1.4 Attachment C .Page 2 of 2

UNDEREIRAIN SCHEDULE
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ir
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Cl EAMOUT 15
37,00 211 13
• CLEAMOUT 16
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40.00 27.03
CLEAMIJI 18
39.00 28.21
camotir 19 3900 2838
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LOCATION KEY
EROSION CONTROL NOTES
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CLEM40UT %7 41.09n74. +'•`�1,i� s _ - �� L_ -
" STOCK PILE AREA HAS -IN 2A
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SPLASH PM
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cLEANour f0 31. aO 24-38 / 1170 _ 1 '} •.t Y , ' -� ^, c� -- -- .- r:
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area lHWL
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12'8 NON PERFORATED
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(SEE OVERALL PUINj 1r1,•" X f%Y...-'¢
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