WQ0023261_Final Permit_20091027

MCDENR
North uarolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Jeff L. Pearson, Executive Director
OnslouT Water and Sewer Authority
PO Box 1415
Jacksonville, North Carolina 28-540
Dear Mr, Pearson:
Division of Water Quality
Coleen H. Sufiins Dee Freeman
Director Secretary
October 27, 2009
Subject: Permit No. WQ0023261
Swansboro WWTF
Wastewater Treatment and Reclaimed Water
Utilization System
Onslow County
In accordance with your permit modification request received October 15, 2009, we are
forwarding herewith Permit No. WQ0023261, dated October 27, 2009, to Onslow Water and
Sewer Authority for the continued operation of the subject reclaimed water treatment and
utilization system. This modification is issued to change the name of the owner of record from
the Town of Swansboro to Onslow Water and Sewer Authority.
On August 5, 2009, Session Law 2009-406, entitled "An Act to Extend Certain
Government Approvals Affecting the Development of Real Property within the State," Nvas
enacted by the General Assembly and signed into law. The Act, known as the Permit Extension
Act of 2009, extends the expiration date of certain government approvals and permits.
Non -discharge permit, WQ0023261, issued by the Division of Water Quality falls within
the scope of this Act and is therefore being extended until September 25, 2014. Please note per
your permit, a renewal application roust still be submitted six months in advance of the extended
expiration date.
This modified permit shall be effective from the date of issuance until September 25,
2014, shall void Permit No. WQ0023261 issued September 26, 2006, and shall be subject to the
conditions and limitations as specified therein, - Please pay particular attention to the monitoring
requirements in this permit. Failure to establish an adequate system for collecting and
maintaining the required operational information will result in future compliance problems.
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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.
If you need additional information concerning this matter, please contact Chonticha
McDaniel at [phone] or [e-mail].
Sincerely,
,jor Coleen H. Sullins
cc: Onslow County Health Department
Wilmington Regional Office, Aquifer Protection Section
Technical Assistance and Certification Unit
Permit File WQ0023261
Notebook File WQ0023261

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
WASTEWATER TREATMENT AND RECLAIMED WATER UTILIZATION PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina
as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Onslow Water and Sewer Authority
FOR THE
continued operation of a 600,000 gpd wastewater treatment and 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 mgd 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, 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,
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 43 (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 October 15, 2009, 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 September 26, 2006 and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDARDS
1. 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.
2. 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.
3. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
4. Any sludge generated from this disposal facility must be disposed of in accordance with
General Statute 3143-215.1 and in a manner approved by the North Carolina Division of
Water Quality.
5. 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.
6. 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.
W00023261 Version 1.3 Page 2 of 11

7. 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
reclaimed water shall be taped or otherwise identified
identification need not extend the entire length of the
incorporated
line.
for the purpose of distributing
as in items a. or b. above. This
distribution system but shall be
within 10 feet of crossing any potable water supply line or sanitary sewer
8. All reclaimed water valves and outlets shall be of a type, or secured in a manner, that permits
operation by authorized personnel only.
9. 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.
10. 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 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.
W00023261 Version 1.3 Page 3 of 11

Reclaimed Water Low Rate Infiltration. Basin Disposal Facility
11. 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.
12. 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 Permittee 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
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.
WQ0023261 Version 1.3 Page 4 of 11

Reclaimed Water Low Rate Infiltration Basin Disposal Facility
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
Q d/fe)
Maximum Annual
Irrigation
Qallons/year)
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
IILMONITORING AND REPORTING REOUIREMENTS
1. 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.
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:
Parnm&,ter
BOD5 (5-day, 20°C)
NH3 as N
TSS
Fecal Coliform
Turbidity
Monthly Average a Daily (Instantaneous) Maximum
10 mg/l 15 mg/l
4 mg/l 6 mg/l
5 mg/l 10 mg/I
14 per 100 ml b 25 per 100 ml
10 NTU
W00023261 Version 1.3 Page 5 of 11

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 Permittee, 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 Sam121
Flow
Influent
Continuous
Recording
Stage Level'
Infiltration Basin #1
Daily
Measured
Stage Level'
Infiltration Basin #2A Daily
Measured
Stage Level'
Infiltration Basin #2B 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/Monthb
Composite
TSS
Effluent
2/Monthb
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
Triannually°
Grab
Chloride
Effluent
Triannually°
Grab
The effluent pH shall not be less than 6.0 standard units nor greater than 9.0 standard
units.
Daily water stage level of each basin (Basin #1, #2A, #2B, and #3) as measured in
feet (freeboard below top of berm).
b 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.
W00023261 Version 1.3 Page 6 of 11

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 #le Effluent As Used Recording
Flow to Basin #2Aa Effluent As Used Recording
Flow to Basin 9-2Ba Effluent As Used Recording
Flow to Basin #3a Effluent As Used Recording
a Reclaimed water effluent daily flout pumped to each basin (Basin #1, #2A, #2B, and #3).
b. continuous weekly, monthly, and year-to-date hydraulic (gpd{ft2) loadings for each basin,
and
e. 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
Ill 4) 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.
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,
W00023261 Version 1.3 Page 7 of 11

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 Down 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], [phone], or
[phone]. 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
Reclaimed Water Low Rate Infiltration Basin Disposal Facility
1. 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.
2. 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:
WQ0023261 Version 1.3 Page 8 of 11

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 MW4, MW-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-1, 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
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
e. 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 V111 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 forms to:
NC DENR/DWQ
Information Processing Center
1617 Mail Service Center
Raleigh, NC, 27699-1617.
WQ0023261 Version 1.3 Page 9 of 11

3. 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 immediate remediation action in addition to the penalty provisions
under North Carolina General Statute 3�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.
3. Any duly authorized officer, employee, or representative of the Division of Water Quality
may, upon presentation of credentials, enter 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
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.
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 5143-215.6A to 6143-215.6C.
WQ0023261 Version 1.3 Page 10 of 11

5. 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
Permittec for the life of the project.
7. 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).
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 27`h day of October 2009.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
I ale . Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit No. WQ0023261
WQ0023261 Versbn 1.3 Page 11 of 11

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Ar �
.0 \ - 12'0 NON-PERTORAIEO BOTTOM = 32.09
_ PIPE
11
i- SPLASH PAD // 'y, p4�1 i� I
s ti J 4J f } (SEA nErAL &IEET) "47"p 1
-M I. - 'tea-='- :�.- -_ ��O-• _ _ 7 c
EMCC
Lv
STOCK PILE AREA
(SEE OVERALL PLAN]
ULM OF
9 ♦+-....-,r xj $PggBT6GH PILE AR A
(SEE OVERALL PLAN)
`~TIw. 1� `• S '>i 'il it -�Y _ i � t'` y �� y j.
S.
E R GREEN ENCaINEERINGI TOWN OF SWANSBOAO GRADING PLAN
WAIER WASTEWATER 9UFNEYNIQ MLANNL1q PROJECT MAMAUEMENT
+r f "i`��` 721MuoLeemrlXDT. PA.BOKEDY LVLeorLRC.Q]5P1 LOW HATE INFILTRATION BASINS BASIN 1
'rrL LiR +L+` +u [ter an�5s PAX Eux1 x.LrTrm oR;ce.oRF�rncaa CNSLOW COUTaTY NORTH CAROLINA
io,
LOCATION KEY
EROSION CONTROL NOTES
WI+EN
SFFDIKC u,w cNINC IO BE APPLILO N
at 0-5 pr— _0 OlsrVwBlNc
NOT PREVIOUSLY STA©EL17CO SILT
ACTIv.TC5
rEmcE TO 9!
INSTALLED AS SHOWN OR AS DEEMED NECUISARY
BT' WSWL Onc r,ATKR1.
$VAT FENCE
ROCK ChICK DAM
Q
OIssPAiOR PAO
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seo+n.rrrr rNAr
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LEGEND _
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A
PROPesEp 5'. A-SER LLLANrOUT -
PROPtISEC wLNE
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s LB rya
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PRDP UC IY-. URArri
-- 12.Ub
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,, COWCUR
PROP S COnrObk —�
LWITS or DISTURBANCE Y r r w r w w w r w
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UNaJ=RURAIN SGHV OULE gAr a " U1405 bF Y '
"rr ar UCTURl= ME IfflL "_ T R � � _ - � . � j . - `DISTugSAl4CE n, j _ f 1
_ * ,r?� -'" •. l- STOLIK PILEpAREIL
1=,J•- 4-f.- N �► w>7�1 ��' _ _ (SEE OVERALL PiJ1Nj
vw
c1_r.WPITT it 32.49 23.46..., ' -i ; k -1.: r. !s`• - - a
CLEANOUf 12 42.3124.14ti
~ a CLEANEWT j3 4l.53 24.76= - k•- " = ly►1 --F ._ : - �. ;2 ,p -. �� _ '? f �I
CLEANOLri J4 34.95 25.20 - - —�-� (��.,..]f' - �.•t ` -_ e f
CLEANOLIT #5 41.00 25.Es-
v " .• CLEANOLrT #8 45.00 26.48 Jy ♦ ''-- �,�, ; r ,, . '
CLEAPIOUT r7 41,00 26.74 ' � � .� \ - - �a' .� {- .N, .
STOCK PILE AREA
1 (SEE OVERALL PLAN] � *-_ _ BASIN 2A
\� 125,328 sq. ft. SIP N PAD
Y •3�-f1'�I' - _ ,T �Q: - 2.86acres (SEE DE7A1L SHk�
.. �� a - _ -•/'4'BOTTOM = 33.0_0
•Y
- ` , SPLILSH PAD
1s e>, 1 � -n (SEE DETAIL SHEF:iJ `I,�
B C 1' ><I '1 R x II - _ I lip
� + _ `� 'dy`_._
n° ^�' - -' v riv,'� Is.` fr - �`�•�i\W [,
BASIN 2Bjw
1 T R jr c^ 1 3.88 acres
HWL s 3B.OQ
•�'' ? k'r r � BOTTOM = 32.aa�-
+1VI ir`'i�f�
x k
,' ; r 11 _ 1• _ :�ti,'fir..!-+ +I M.
65 '4 �03` A 1 P2'0 NON PERFORATED. fI-
LOCATION KEY
r
EROSION CONTROL NOTES
SEE WC AND WILCIIING TO 9r APPLIEo wrllln
'
II pAVs Of AIL I -A.0 ❑ eV URDINC A_T N11.E5
5
FIAT PRC.O,JslY 1A0IIIIED SILT FENCL TO U'_
'.
//
$NSIALLLD w5 Sllo tl OR AS MEWED NLSI;.SSAW
o' Wsuµ DRjERVwTIpN
4I,L FE III:£ +-+---��-�-�-
RD" 1:.1ECx IwA (�
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NISSPAIOR PN) r'''`I
WLCT PROTECioR l l
SEDIMENT TRAP
I
fR1ER RASW
LEGEND_
EYISIWG VALVE-
Y A+ ." r, ' _ _. (o,77:i) I - - (o.axx! - _ __ _ 1 I�i
y , ' , -r--• i7PUP w� 17W0 �•� �� J7eOl/ ��.�....� i7e1N0 r ,- r ♦ ... 4 I PRo p M—ar •
L PROPoSEo a, AKER CtL -wr
PIIDPOSLL YAWL H
i-w oat
•`� � I + ; >s � I .�, '. , •_ _ __- �` YI, 41 Ti ' f! i� -� f+NOa SS +i: ru � 1
' .�` , �.� '.. �. F+ - �.' PROP. Lr. U-. OMPI
r r r r r' J a r I 1! _ i `I a .. '+.. \../~ f/ 1 '.;:= `� — i7eilD
J �11e+' r r r r a r r+ r r r r Ii r \/T r No [� �E rr rr A. a 11! r r I�F ` f A r'� r% I JA - ExISTatG 1' rDN1U1R -'A A, --._—
y`ti /F/�j.cr•1l"v / .r L,-/i Y!' (tiff./•.�{_ - - - -� _'" r L.Av t:+sLnm 5' CONICUR
_ S 8 E SCHEDULE L _ -}i- — : y_ �'r_ uAEIT$ OF
JA. a� .- PRDF V 0O 10uR —
,�pv STRIIf,TtIRF i W II WELL - - - _ 1 _ ISRJR@INCE-.a r�� - 1j,�_<�• PRDP U, u"TwR
-.sEDWF,1Nr TRAP %2A 30' 15' 3' 1 D' k"15 ar oMUMAN W
•�}.� 15310'
''^^''
�S&10 '9SD1gW Ke j20 30' , ' XLJ�
CC''''
wenAlros L � -
¢ �•._RIDif(g6SNYSpg2A 20'iD'1.5' CLASS A _ L
D1i1t "DW NNr' 11211 20' 10 1.5 STONE ."`"""^"-•--. .:,..__„_....,.,�,.,...�.....,_._._.. ,�.,. .`'�. a - --- vl1� +, �' - ..Iit-----
GREEN ENGINE£=R1N0 TOWN OF SWANSBORO
tr WATER WASTEWATEik sw+W vEYM n-4Nn PROJECTMANILOEAEEHr GRADING PLAN
PMDQA s HllllarLNC.27B LOW RATE INFIL.THATION BASINS BASIN 2A $ 2B
A7j �R�i;i` TEL I7Kvl 2Tl-SiRi PAIf Lvey su->4eP o POrS743i4caFl pNSIpW COIJN iY NOflTH CAR.1 INA w[LT ro 1..g - 12 e

UNDERDRAIN SCHEDULE Y.
SffiUGAIBE TOP IK1L 'STOCK FILE: AREA �. - o®
� mnEi /t - z3.DO JSEE OVERALL PLANT
'rqt -top
CLiANOUT /1 36.20 23.40 l'1E} 1p-�W/ydVa. .. , r _ -Lli- \1�. .*
CLEANOUT j2 36.20 23.78 -✓ .� `• - - •-� . , } (o.7iZ�'+F-iif^I , �� ». - -C -- - ♦ '
CLEANOUT #3 36.35 23.97 ,4,♦ .ss' ..- = _ ` F�L�LJ• ,y .: L = ` !1 �, . - ? i . N i '�+
CLEAROUT 04 36.OD 24-15 ♦ ( x - I __ � ` •' -►♦ : _ _- -) ' ` - af`7�
MEMOAr 05 35.67 24.J3 1 '_- ~ \\�Aq
\t/" - ��� L .S •..� �"- �• 1 CLEANOUr s 36.00 24-88 \ ! ! r r _ +
CLENNOLIr /7 36.07 24.05 i-� )f ., � /<, �:.. �_-_;� T+c '-� 3
CLEANOUT is 34.00 24-38
CLEANOUr +9 31.00 24.05 r� £I „ �`� EEI
CLEANOUT #10 35-30 23.73
� L
CLEAMOUT /T1 29.00 23.33 \ w .p ` ;r,; `' _ �_x } _ ♦t ;
a ® - a SPLASH PAR !4� - �LlAlfrS DF
Purl/� .. "�° • ~;' (SEe DETAIL SH£ErI r'y''y �� - .-,- DISIi1R, IWCE -7N
-; I BASIN 3
area (4 HWL
145 663 sq. fL
HVVL = 34.00
j ��� BOTTOM - 28.06 �,
AI
c` �-_ a r`J �' '3J, f •i ,o!'..'p,
4Y"NON I'ZODRATED
Li
i - F 'w _l `� STOCK PILE Y r RIPE LOCATION'KEY
(SEE _OVERALL PLAN) `;�'�,.•�� -,� -4.';.
'p, EROSION CONTROL NOTES
�1 1 1 ��]] /// .fir,- r '� i', •' ' '0�� SEEn C —0 MuLCMNr TO IREr PLIED wiTHiN —
1 �, NOT DFFFv10N51YSTAO .Z P`LR SrLT FEeM,:E'SO DC
•+ * o{ l `� , -� ` *r, _ INSrwLi EO I.5 51it1WN CA AS OEEIUED NFCFSia•LLY
_ �` ` _ ('r - BY VLSVAL COSERYATHIN
VIA1w1 - e \ / !� / W r-��1 _ -'' �` �-y _�i����L_ 5pt FFUCE
�a s� II �JFrYY
to-0
Wssiaw,ore
C �I 1•� iZ PNUN PERFORATED ; ii� —El P.-JrEr:IOR
®,si-_�
LEGEND -'_-------'------�'
L = J
PFOP-SED u"HOLE
yyqq ��-J•F Ir r r W r r ��i1 r � w r.� M4 � a• +1{ /� ' f � �. i� 1 PROPOS{D 6'r HiSER CLVM—b11
LINIfS OF /;P 'r rm G ./f PnoPozFD Y.LYt'
ii {ter% r ��,r1 , BLSiUR9ALICE r WLO WRE
-E - - _ _ - _ _ ,_ r ' �', a -yv�y_ _ i : -�, wed s5 i]-r ru 129FM
i i. -YWA-f 77 •%7'
co,nn'.1 _ 4. ..-. _ .
-A.-- - - j
P 0D t' COHfOUt {1 -
�jf J ' +' i PROP s -Mlo m CSP.f-
FE$u7rJ� [ trQJ1rt �S �'7 ii ti E wrs or nis vneR»ce w r w r .w r r a r r ■
o _ r�t4r-j�je r ,► i NETIAM S
oe
O -ter w.
1 u GFiE=EN ENOINEERING f WASTE
WATER TOWN OF SWANSBORO R
GRADING PLAN
�WASTEWATER 61.FlVETWD, u1H►a, tiloaecs MuucJeLrrrT r. r
,lFp GRr�Et';.' 61NDO tiHBCNO IT P�L�. ,�N� LOW RATE INFILTRATION BASINS BASIN 3' `W
` TE1 ISi9E]k7-sins r u caatis,}T,w oJwace.oFr�srarnFn ON91UW COUNTY NoRTT{CAi10 Nn "- - I - 12