WQ0023261_Final Permit_20060926

September 26, 2006
Honorable Paul Edgerton, Mayor
Town of Swansboro
502 Church Street
Swansboro, North Carolina 28584
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W, Klimek, P.E. Director
Division of Water Quality
RECEIVED 1 DENR I DVVQ
AQUIFER PROTR710N SECTION
OCT 0 6 2006
SUBJECT: Town of Swansboro Wastewater Treatment Plant and
Reclaimed Water Low rate Infiltration Pond Disposal Facility
Reclaimed Water Generation, Distribution and Utilization Permit
Modified Permit No. WQ0023261
Project No. E-SRG-T-00-0105
Onslow County
Dear Mayor Edgerton:
In accordance with your application received May 26, 2006, we are forwarding herewith
Modified Permit No. WQ0023261, dated September 26, 2006, to the Town of Swansboro for the
construction and operation of the subject reclaimed water generation and distribution system with
utilization of reclaimed water at the Town of Swansboro Wastewater Treatment Plant and Low Rate
Infiltration Pond Disposal Facility.
This modified permit shall be effective from the date of issuance until September 25, 20111
shall void Permit No. WQ0021261 issued December 12, 2005, and shall be subject to the conditions
and limitations as specified therein. Please pay particular attention to the monitoring fequirelrlents in
this permit. Failure to establish an adequate system for collecting and maintaining the required
operational information will result in future compliance problems.
Please note that once the Division has received the Engineer's Certification of this permit, the
Town should request rescission ofNPDES Permit No. NCO036153 issued June 21, 2002, to the Town
of Swansboro's Wastewater Treatment Facility (see Section VI, Condition 7 of this 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 CNp arolina
turalCy
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer service
Intemet: h2o.ericstate.nc.us 512 N, Salisbury St. Raleigh, NC 27604 FAX [phone]
An Equal OpportunWAtfirmalive Aefion Employer — 50% Recycled/i 4% Post Consumer Paper

Honorable Paul Edgerton, Mayor
Page 2
September 26, 2006
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 Construction
Grants and Loans Section, 1633 Mail Service Center, Raleigh, North Carolina 27699-1633.
(Engineer's Certification Form is attached.)
One (1) set of final approved plans and specifications is to be forwarded to you, one (1) set is
being forwarded to your Engineer (A/E), one (1) set retained for the Wilmington Regional Office, one
(1) set retained for the Design Management Unit, and one (1) set retained for the Construction
Inspection Group.
A copy of the approved plans and specifications shall be maintained on file by the owner for
the life of the project.
If there are any questions concerning this matter, please do not hesitate to contact
Mr. Cecil G. Madden, Jr., P.E. at [phone].
Sincerely
/anKlime , P.E.
Attachments: Sheet I-1: Overview Map of Reclaimed Water Low Rate Infiltration Basin Disposal Facility
Sheets I-5,1-6, & 1-7: Detailed Infiltration Basin Maps
kp/cgm
cc: Leo Green, Jr., P.E. (Green Engineering, Wilson)
Onslow County Health Department
Wilmington Regional Office, Aquifer Protection Section
DWQ, Aquifer Protection Program. Section, Land Application Unit, Central Files
DWQ, Aquifer Protection Program Section, Land Application Unit, LAU Files
Daniel Blaisdell, P.E.
Mark Hubbard, P.E.
Cecil G. Madden, Jr., P.E.
Ken Pohlig, P.E.
SRG

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
RECLAIMED WATER GENERATION, DISTRIBUTION AND 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 Swansboro
FOR THE
continued operation and expansion of the Town of Swansboro Wastewater Treatment plant from
300,000 gpd to 600,000 gpd treatment capacity, generating reclaimed quality effluent, to serve the
Town of Swansboro, consisting of the following existing facilities:
Wastewater Treatment Facilities (Existing)
an existing 123,000 gallon equalization basin,
two existing 22-foot diameter, 12-foot side water depth secondary clarifiers, and
an existing dual rotating cloth disk filters with automatic backwash.
Wastewater Treatment Facilities (Modified and New)
demolition of the existing headworks structure, chlorine contact basin, existing
chlorination system, and various yard piping,
• a new influent flowmeter,
• a new headworks structure, to include a 1.5 mgd mechanical semi -cylindrical screen
with screw conveyer, a 1.5 mgd vortex grit removal chamber system, and manual bar
screen,
• modifications to the existing 300,000 gallon oxidation ditch (ditch 41), to include
installing two new horizontal 42-inch diameter blade aeration rotor/motor assemblies,
removing existing weir plates and installing a new adjustable weir plate,
a new oxidation ditch flow splitter box (distribution box # 1),
• a new 300,000 gallon oxidation ditch (ditch #2) with two (2) horizontal 42-inch
diameter -blade aeration rotor/motor assemblies, and one adjustable effluent weir,

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 2
• 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 new 32-foot diameter, 12-foot side water depth center -fed secondary clarifier,
• a new clarifier flow splitter box (distribution box #2), .
• a new 1.5 mgd UV disinfection facility consisting of three (3) banks in series (2 banks
duty, 1 bank redundant),
• a new turbidity meter,
• a new 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 new 4.28 million gallon upset pond lined with 60 mil HDPE synthetic liner, and a
upset pond pump station including a 210 gpm pump,
• modifications to the sludge return boxes on the existing clarifiers,
• modifications to the existing RAS/WAS pump station to include upgrading existing
pumps to dual 520 gpm, 15 hp pumps,
• a new chlorination feed system for internal WWTP algae maintenance,
• modifications to the existing sludge digester, to include raising the digester walls 3 feet
(new digester volume = 46,900 gallons), and replacing the 40 hp floating mechanical
aerator,
• anew 500 gpm, 8 hp sludge transfer pump next to existing sludge digester,
• a new 315,000 gallon sludge holding stainless steel tank with fine bubble diffusers, with
dual 806 scfm, 40 hp air blowers,
• a new sludge loading station (for trucks) with 500 gpm sludge transfer pump,
• one 350 kW emergency generator with automatic transfer switch, and
• associated yard piping and appurtenances.
Reclaimed Water Distribution Force Main
Construction and operation of a reclaimed water distribution force main, to consist of:
• approximately 28,900 linear feet of 12-inch reclaimed water force main and associated
appurtenances, which connects to an existing approximately 3,300 linear feet of 12-inch
reclaimed water force main originally permitted under WQ0023261 (issued November
12, 2003).
Reclaimed Water Low Rate Infiltration Basin Disposal Facility
Construction of four new reclaimed water infiltration ponds (totaling 600,000 gpd
disposal capacity) to serve the Town of Swansboro, to consist of
• four infiltration basins consisting of Basin A (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,
pursuant to the application received October 3, 2003, and modified application received May 26,
2006, 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.

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 3
This Modified Permit shall void Permit No. WQ0023261, issued on December 12, 2005, shall be
effective from the date of issuance until September 25, 2011, and shall be subject to the following
specified conditions and limitations:
I. PERFORMANCE STANDARDS
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 this permit, the approved
plans and specifications, and other supporting materials. If this project is to be
completed in phases and partially certified, you shall retain the responsibility to track
.further construction approved under the same permit, and shall provide a final
certificate of completion once the entire project has been completed. Mail the
Certification to the Construction Grants & Loans Section, Division of Water Quality,
1633 Mail Service Center, Raleigh, NC 27699-1633.
2. The Wilmington Regional Office, telephone No. [phone], shall be notified at
least forty-eight (48) hours in advance of operation of the installed 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.
Only tertiary treated wastewater generated from the Town of Swansboro Wastewater
Treatment Plant which meets the reclaimed water standards as defined by 15A
NCAC 2H.0219(k) 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.
4. 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_
5. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited
6. 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.
7. The following buffers shall be maintained:
a. 100 feet between wetted areas and water supply wells,
b. 100 feet between wetted areas and waters classified as SA,
c. 25 feet between wetted areas and surface waters not classified as SA,
d. 100 feet between wastewater treatment units and wells,
e. 50 feet between reclaimed water storage/irrigation ponds and property lines,
and
f. 50 feet between wastewater treatment units and property lines.

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 4
All reclaimed water valves, storage facilities, outlets shall be tagged or labeled to
warn the public or employees that the water is not intended for drinking. Where
appropriate, such warning shall inform the public or employees to avoid contact with
the water.
9. 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.
a. 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.
b. 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.
C. Existing underground distribution systems retrofitted for the purpose of
distributing reclaimed water shall be taped or otherwise identified as in items
a. or b. 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.
10. All reclaimed water valves and outlets shall be of a type, or secured in a manner, that
permits operation by authorized personnel only.
11. 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 as being of non -potable quality. 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 may be placed in non -lockable underground services boxes
clearly labeled as non -potable water.
12. 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. A reduced pressure principle backflow preventer, an approved air gap
separation, or other device approved by the Division of Environmental Health
shall be installed at the potable water service connection to the use area where

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 5
both reclaimed water and potable water are supplied to a reclaimed water use
area. The installation of the reduced pressure principle backflow prevention
device shall allow proper testing.
C. An air gap separation, approved and regularly inspected by the potable water
supplier, shall be provided between the potable water and reclaimed water
systems where potable water is used to supplement a reclaimed water system.
Town of Swansboro Reclaimed Water Low Rate Infiltration Basin Disposal Facili
13. The reclaimed water utilization facilities shall be effectively maintained and operated
at all times so that there is no discharge to the surface waters, nor any contamination
of groundwaters which will render them unsatisfactory for normal use. In the event
that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions or failure of the infiltration area to adequately assimilate the wastewater,
the Permittee shall take immediate corrective actions including those actions that may
be required by the Division of Water Quality (Division), such as the construction of
additional or replacement wastewater treatment and disposal facilities.
14. Public access to the infiltration sites 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.
II. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facility shall be properly maintained and operated at all times.
2. Upon classification of the wastewater treatment and infiltration facilities by the Water
Pollution Control System Operators Certification Commission (WPCSOCC), the
Permittee shall designate and employ a certified operator to be in responsible charge
(ORC) and one or more certified operator(s) to be back-up ORC(s) of the facilities in
accordance with 15A NCAC 8G .0201. The ORC shall visit the facilities in
accordance with 15A NCAC 8G .0204 or as specified in this permit and shall comply
with all other conditions specified in these rules.
3. The Pennittee shall install all appropriate flow measurement devices consistent with
approved engineering and scientific practices to ensure accuracy and reliability of
influent flow measurement. Flow measurement devices selected shall be capable of
measuring flows with a maximum deviation of less than 10 percent from true flow,
accurately calibrated at a minimum of once per year, and maintained to ensure that
the accuracy of the measurement is consistent with the accepted capacity of that type
of device. Records of flow measurement device calibrations shall be kept on file by
the Permittee for a period of at least three years. At a minimum, data to be included
in this documentation shall be:
a. Date of flow measurement device calibration
b. Name of person performing calibration

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 6
C. Percent from true flow
4. Should the limit for fecal coliform (daily maximum concentration of 25 per 100 ml)
or turbidity (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.
Town of Swansboro Reclaimed Water Low Rate Infiltration Basin Disposal Facility
5. 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.
6. No type of wastewater other than that from the Town of Swansboro's wastewater
treatment plant shall be irrigated at the Reclaimed Water Low Rate Infiltration Basin
Disposal Facility.
7. The infiltration rates shall be according to the following table.
Basin
Wetted Acreage
Infiltration Pond
Surface Loading
Rate
( d/ff
Maximum Annual
Irrigation
allons/ ear)
Annually Averaged
Irrigation
(gallons/day)
1
5.00
0.9044
71,897,087
196,980
2A
2.88
0.9044
41,412,722
113,460
2B
3.88
0.9044
55,792,139
152,860
3
3.48
0.9044
50,040,372
137,100
Total =
15.24
219,142,321
600,400
III. MONITORING AND REPORTING REQUIREMENTS
Any monitoring (including groundwater, surface water, soil or plant tissue analyses)
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. WWTP reuse effluent flow 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.

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 7
3. As an indicator of proper operation and maintenance, the Town of Swansboro
Wastewater Treatment Plant shall produce an effluent in compliance with the
following reclaimed water limitations:
Parameter
BOD5 (5-day, 20`C)
NH3 as N
TSS
Fecal Coliform
Turbidity
Monthly Average a
10 mg/1
4 mg/l
5 mg/l
14 per 100 ml b
Daily (Instantaneous,) Maximum
15 mg/l
6 mg/1
10 mg/1
25 per 100 ml
10 NTU
a. Monthly averages for all but fecal coliform shall be the arithmetic mean of all
samples collected during the reporting period.
b. Monthly average for fecal coliform shall be the geometric mean of all samples
collected during the reporting period.
C. 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 Perrnittee, at the
point prior to or at the WWTP effluent reclaimed water pump station for the
following parameters and reported on Form NDMR-1:
Parameter
Sampling_Point
Sampling Frequency
Type of Sample
Flow
Influent
Continuous
Recording
Stage Levela
Infiltration. Basin #1
Daily
Measured
Stage Level'
Infiltration Basin #2A Daily
Measured
Stage Level'
Infiltration Basin #213 Daily
Measured
Stage Level'
Infiltration Basin #3
Daily
Measured
Turbidity
Effluent
Continuous
Recording
Residual Chlorine
Effluent
Daily
Grab
Settleable Matter
Effluent
Daily
Grab
BOD5 (5-day, 20°C)
Effluent
2/Month'
Composite
TSS
Effluent
2/Month'
Composite
Fecal Coliform
Effluent
2/Monthb
Grab
NH3 as N
Effluent
2/Monthb
Composite
NO3
Effluent
2/Monthb
Composite
TKN
Effluent
2/Monthb
Composite
TDS
Effluent
Triannuallyc
Grab
TOC
Effluent
Triannuallyc
Grab
Chloride
-Effluent
Triannuallyc
Grab
The effluent pH shall not be less than 6.0 standard units nor greater than 9.0 standard
units.
a Daily water stage level of each basin (Basin #1, #2A, #213, and #3) as measured in
feet (freeboard below top of berm).

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 8
2/Month sampling frequency only during the months of April through
October. During the remainder of the year, these parameters shall be
monitored monthly.
Triannually sampling shall be conducted during March, July, and November.
If groundwater sampling indicates or predicts problems with the compliance with
Groundwater Standards, this permit will be modified to include additional and/or
more restrictive limitations.
4. Adequate records shall be maintained by the Permittee 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. These records
shall include, but are not necessarily limited to, the following information:
a. date and time of wastewater volume infiltrated to each basin:
Parameter Sampling Point Sampling Frequency Type of Sample
Flow to Basin #1$ Effluent As Used Recording
Flow to Basin #2Aa Effluent As Used Recording
Flow to Basin #213a Effluent As Used Recording
Flow to Basin #3a Effluent As Used Recording
Reclaimed water effluent daily flow pumped to each basin
(Basin #1, #2A, #213, and #3).
b. continuous weekly, monthly, and year-to-date hydraulic (gpd/ft) loadings for
each basin, and
C. weather conditions.
5. Three (3) copies of all effluent monitoring data (as specified in condition III 3) on
Form NDMR-1 and three (3) copies of all operation and disposal records (as specified
in condition 1114) shall be submitted on or before the last day of the following month.
All information shall be submitted to the following address:
NC Division of Water Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
6. A maintenance log shall be maintained at the Town of Swansboro Wastewater
Treatment Plant 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.
e. Date and results of power interruption testing on alternate power supply.

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 9
7. A maintenance log shall be maintained at the Town of Swansboro Reclaimed
Water Low Rate Infiltration Basin Disposal Facility including, but not limited to,
the following items:
a. Visual observations of the infiltration basins.
b. Record of preventative maintenance (pump maintenance, infiltration basin
maintenance, etc.).
C. Date of calibration of flow measurement device.
8. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office,
telephone number [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 or facility.
d. Any time that self -monitoring information indicates that the facility has
gone out of compliance with its permit limitations.
Occurrences outside normal business hours may also be reported to the Division's
Emergency Response personnel at telephone number [phone], (800) 858-
0368, or (919) 733=3300. Persons reporting such occurrences by telephone shall
also file a written report in letter form within five (5) 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.
IV. GROUNDWATER REQUIREMENTS
Town of Swansboro Reclaimed Water Low Rate Infiltration Basin Dis osal Facility
1. Prior to beginning waste disposal operations, monitor wells MW-1, MW-2, and
MW-3 shall be installed to monitor groundwater quality. The wells shall be

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 10
constructed such that the water level in the well is 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 attached Sheets 1-5,1-6 and I-7.
Each monitoring well shall be constructed in accordance with this permit, and
approved by the Wilmington Regional Office.
2. 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.
3. 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 location. 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.
4. Within sixty (60) days of completion of all monitoring wells, 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 (MW-1 through MW-3),
b. the location of all components of the waste disposal system,
C. the location of property boundaries within 500 feet of the disposal area(s).
d. the latitude and longitude of the established horizontal control monument,
e. the elevation of the top of the well casing (which shall be known as the
"measuring point") relative to a common datum,
f. the depth of water below the measuring point at the time the measuring point
is established, and
g. 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 that may take place on the
property. The permittee is responsible for the geographic accuracy of any reap
submitted, however produced. The maps and any supporting documentation shall be
sent to:
NC DENR/DWQ
Information Processing Center
1617 Mail Service Center
Raleigh, NC, 27699-1617
5. Within thirty (30) days of completion of all well construction activities, a
certification must be received from a professional engineer certifying that the

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 11
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:
NC DENR/DWQ
Information Processing Center
1617 Mail Service Center
Raleigh, NC, 27699-1617
6. 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.
7. Groundwater monitor wells MW-1, MW-2, and MW-3, and Surface Water Sampling
Point SW-1 *, shall be sampled initially after construction of the wells, and thereafter
every March, July and November for the following parameters:
Water Level"
Chloride
Total Ammonia (as N)
Total Dissolved Solids (TDS)
pH
Fecal Coliform
Nitrate (NO3-N)
Total Organic Carbon (TOC)
Volatile Organic Carbon (VOC) analysis - Only in November for MW-1, MVO-2 and
MW-3
(not Surface Water Sampling Point SW-1)
*Surface Water sampling Point SW-1 is located in the un-named stream about 80
feet from Discharge Outlet DO #1 (see Sheet 1-7).
"For monitor wells MW-I, MW-2 and MW-3 only. 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 all monitoring wells shall be surveyed
to provide the relative elevation of the measuring point for each monitoring well.
For Volatile Organic Compounds (VOCs) sampled in November, use only one of
the following methods:
a. Standard Method 6230D, Practical Quantitation Limit (PQL) at 0.5 ug/L or less
b. Standard Method 6210, PQL at 0.5 ug/L or less

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 12
C. EPA Method 8021, Low Concentration,-.PQL at 0.5 ug/L or less
d. EPA Method 8260, Low Concentration, PQL at 0.5 ug/L or less
C. Another method with prior approval by the Aquifer Protection Section Chief.
Any of the referenced methods used for VOCs must at a minimum, include all the
constituents listed in Table VIII of Standard Method 6230D. Any method used must
provide a PQL of 0.5 ug/L or less, which must be supported 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 results of the sampling and analysis must be received on Form GW-59
(Groundwater Quality Monitoring: Compliance Report Form) on or before the last
working day of the month following the sampling month_ Send all fortes to:
NC DENRJDWQ
Information Processing Center
1617 Mail Service Center
Raleigh, NC, 27699-1617.
8. The compliance boundary and review boundary for wastewater disposal systems are
specified by 15A NCAC 2L. For systems utilizing reclaimed water, 15A NCAC 2H
.0219(k) specifies that both the compliance boundary and review boundary shall be
established at the property line. An exceedance of groundwater quality standards at
or beyond the compliance boundary is subject to imnrtediate remediation action in
addition to the penalty provisions under North Carolina General Statute
§ 143-215.6A(a)(1).
V. INSPECTIONS
1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee 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 years from the
date of the inspection, and shall be made available upon request to the Division of
Water Quality or other permitting authority.

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 13
3. Any duly authorized officer, employee, or representative of the Division of Water
Quality may, upon presentation of credentials, eater and inspect any property or
premises on or related to the disposal site and facility at any reasonable time for the
purpose of determining compliance with this permit; 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.
VI. GENERAL CONDITIONS
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.
2. This permit is effective only with respect to the nature and volume of wastes
described in the application and other supporting data.
3. 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 may
be 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 §143-215.6A to §143-215.6C.
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
government agencies (local, state, and federal) which have jurisdiction, including but
not limited to applicable river buffer rules in 15A NCAC 2B .0200, erosion and
sedimentation control requirements in 15A NCAC Chapter 4 and under the Division's
General Permit NCG010000, and any requirements pertaining to wetlands under 15A
NCAC 2B .0200 and 2H .0500.
6. A set of approved plans and specifications for the subject project must be retained by
the Permittee for the life of the project.
7. Once the Engineer's Certification is completed and received by the Division, the
Permittee shall request rescission of NPDES Permit No. NCO036153 issued June 21,
2002, for the Town of Swansboro's wastewater treatment facility. All correspondence
shall be submitted to the following address:

Town of Swansboro
Modified Permit No. WQ0023261
September 26, 2006
Page 14
NC Division of Water Quality/Surface Water Protection Section
NPDES Permitting Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
8. The annual administering and compliance fee must be paid by the Permittee within
thirty (30) days after being billed by the Division. Failure to pay the fee accordingly
may cause the Division to initiate action to revoke this permit as specified by 15
NCAC 2H .0205(c)(4).
9. 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.
Permit issued this the 26th day of September 2006.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
/v
I . limek, P.E., rrector
vi ion of Water Quality
y Authority of the En) ntal Management Commission
Modified Permit No. WQ0023261

Town of Swansboro
Modified Permit No. WQ0023261
Issued September 26, 2006
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 Town of Swansboro Wastewater Treatment Plant and Reclaimed Water Low Rate Infiltration
Basin Disposal Facility, serving the Town of Swansboro, hereby state that to the best of my abilities,
due care and diligence was used in the observation of the following construction:
Wastewater Treatment Facilities (Modified and New)
• demolition of the existing headworks structure, chlorine contact basin, existing
chlorination system, and various yard piping,
+ a new influent flowmeter,
• a new headworks structure, to include a 1.5 mgd mechanical semi -cylindrical screen
with screw conveyer, a 1.5 mgd vortex grit removal chamber system, and manual bar
screen,
• modifications to the existing 300,000 gallon oxidation ditch (ditch #1), to include
installing two new horizontal 42-inch diameter blade aeration rotor/motor assemblies,
removing existing weir plates and installing a new adjustable weir plate,
• a new oxidation ditch flow splitter box (distribution box #1),
• a new 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 new 32-foot diameter, 12-foot side water depth center -fed secondary clarifier,
• a new clarifier flow splitter box (distribution box #2),
• a new 1.5 mgd UV disinfection facility consisting of three (3) banks in series (2 banks
duty, 1 bank redundant),
• a new turbidity meter,
• a new 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 new 4.28 million gallon upset pond lined with 60 mil HDPE synthetic liner, and a upset
pond pump station including a 210 gpm pump,
+ modifications to the sludge return boxes on the existing clarifiers,
• modifications to the existing RAS/WAS pump station to include upgrading existing
pumps to dual 520 gpm, 15 hp pumps,
• a new chlorination feed system for internal WWTP algae maintenance,
• modifications to the existing sludge digester, to include raising the digester walls 3 feet
(new digester volume = 46,900 gallons), and replacing the 40 hp floating mechanical
aerator,
• a new 500 gpm, 8 hp sludge transfer pump next to existing sludge digester,

Town of Swansboro
Modified Permit No. WQ0023261
Issued September 26, 2006
• a new 315,000 gallon sludge holding stainless steel tank with fine bubble diffusers, with
dual 806 scfm, 40 hp air blowers,
• • a new sludge loading station (for trucks) with 500 gpm sludge transfer pump,
• one 350 kW emergency generator with automatic transfer switch, and
= associated yard piping and appurtenances.
Reclaimed Water Distribution Force Main
Construction and operation of a reclaimed water distribution force main, to consist of:
• approximately 28,900 linear feet of 12-inch reclaimed water force main and associated
appurtenances, which connects to an existing approximately 3,300 linear feet of 12-inch
reclaimed water force main originally permitted under WQ0023261 (issued November 12,
2003).
Reclaimed Water Low Rate Infiltration Basin Disposal Facility
Construction of four new reclaimed water infiltration ponds (totaling 600,000 gpd disposal
capacity) to serve the Town of Swansboro, to consist of:
• four infiltration basins consisting of 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.
in conformity with the project plan, specifications, and other supporting data subsequently filed and
approved by the Department of Environment and Natural Resources.
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 Registration No._
Date
Mail this Certification to: DENR/DWQ
Construction Grants & Loans Section
Attn: Ken Pohlig, P.E.
1633 Mail Service Center
Raleigh, NC 27699-1633

LIMITS OF DISTURBANCE
WETLANDS
colm p4isri e v- R&ursjaw'y
'0 UNDERDRAIN
PARKERTOWN ROAD (SR M2)
f
f
--1
GREEN ENGINEEF
WATER, WASTEWATER, SURVEYM PLAMYWA F
DATE: MAY 26C5
SCALE CUENT: SWANS
PROJECT Na: E97-472,5
A591.MN F.B. N . 647,655,666,75
µ C8ANLE OAT FI -2 2CC6 Ji

t.
5
UNDERDMNSCHEDULE27,00
2
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CLFJS'IOLR ;t13 41.00 27,77 .77 f/'�y'CLF.ANOLLT #4 38.00 27.97
CLEANOUT #5 37.00 28.15
CLEANOUT #6 40.00 27.73
CLEANOUT #7 40.00 27.23
CLEANOLrr #a 39.00 2&21 I ..�'".- �•\ .l
CLEANOUT #9 39.00 28.58 'j
SCHEDULE �f � , _.��` �38M.
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HWL=38,00
,
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it ` 1...r .:�/r'll r __ _ems •., i 'r ' I 1
.ID�jf
(G.47)
t STOCK PILE AREA '% r i. rr ,5t , I Y. 4..d 'i r r: r'rt ___�. '�... __' - rr I ✓� i �'.;' •r
(SEE OVBRALL PLAN)
ST..._y
'1 UNITS OF
�PIs1uRaANCE A
� ARr/
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(SEE OVERALL. PLAN) '
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GREEN ENGINEERING TOWN OF SWANSBORO GRADING PLAN
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TB. c2w7-wm PAx (aaaT as 7- � #anr lacaM LSLOWGIDUNTY NORTH CAROLINA
LOCATION KEY
EROSION CONTROL NOTES
SEEDING AND MULCHING TO 9E APPF,IFD
WITHIN
21 DAYS OF ALL LAND DISTURBING
ACTIVITIES
M07 PREVIOl15lY STARILi2ED. SILT FENCE TO DE
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M
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---------------------
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125,324sq. fL2.88 acme
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`•\
r ' +{ `� H5r'IL = 38.00 °. i `--' '\ �� _ `♦ ,-. - --_� 1. 1 - - , ` EROSION CONTROL NOTES
r
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S r I I , + I '' I i I I ' ! 5 _ ♦ % •�• ♦''•$f' ` l - _ • '1'^ -41 _ `, `5\ - "r" •i I � I :�I I NOT DRE,IOUSLY STABR42E0- 90 FENCE TO SE
INSTr LEO AS SHOWN OR AS OEEME6 NECESSARY
o T I 5Ijr r I IV G, rN• S yl ��8- , ` •,� -____. _ \]l'o ' f r�, BY VISUAL OBSERVATION.
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TN „1'j1` � FA GI M-24e1k OPFRCE" ONSL05N COJNTY NOHT'H COL weerwo i-s - 12�

UNDERDRAIN SCHEDULE
mmo= I'J"DL,STOCK PILE AREA
MDW 170 1 - 2.3-00
DW#2 - 23.00 VM MW # (SEE OVERALL PLAN)
CLEANour #1 36.20 23.40
CLUNDUT #2 313.20 23.78 Z
CLEALNOUT #3 36.35 23.97 C
CLEAN04A 14 36,00 24.15 N
CLEMOuT #5 35.67 24.33
CLEkNOLrr #6 36.00 2.4,88
CLEMOUT #7 66.87 24.55
CLEANouf #8 34.00 24-38
CLEMOUT #9 31.00 24.05 TIE
_FMC)UT I I a 35.30 23.73
CLEM()Lrr #11 28.00 2139
SKASH PAC
° / f '°� `•'• ' ME
N. .
Z'
LikIrrs 017
FtEMCEZ
4BASIN 3
'5 :
-7
■
f area @ HWL
iI 146,663 sq. ft.
(3.48 acres) z
f BOTTOM 28.00
'4
rr
PERFORATED
17V NON PERFDR�TED
S' 15CK POLE AREA PIPE
(SEE OVERALL PLAN}
Z
7 7
LOCATION KEY
EROSION CONTROL NOTES
SEEI]ING ANT) MULCHING TG RE APPLIED WITHIN
21 DA� OF ALL LAND uiSTuRBlmC AC,7NMES
4 m PRE"ousLy WiLIZEiET S4tr7 FENCE -TO BE
614� wo ST T.L. As SOv
X to to OR AS DEEMED NECESSARY
11 BY VISUAL OESILIWAXION.
SILT FENCE
40xaYr ROCK CHECK DAJ`A 0
Cr
PE40PLATED I I If kj '-
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I L
E
i NON
4)
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PIPE
FILTER OAS, -
LEGEND
'p 1�pp R.9 Jim
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DISTURB a 7' 0
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7
EXISTING VALVE
pa
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PROPOSE. VALVE
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PROF F 5 12. m
umFill
PROP, UO' 12-. DRAL.
r 12,U5
MSTIRC C COWOLIR
al - — —
EXISTING 5' COKMUR
—a
PROP V CONTOUR
WLTLAMS
GREEN ENGINEERING TOWN OF SWANSBORO GRADING PLAN
WAW. WA6"IEWA7ER MENEYM PLAV010, rRGJECTMMA0"VqT
F%WL Pa. SICKIIAC.� LOW RATE INFILTRATION BASINS BASIN 3
TEt (=)2S7­Ik5 FAX IZMM-7,QIIII OF'P"40FIREu ONSLOW COUNTY NORTH CAROLINA I