WQ0000798_Final Permit_20010806

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross Jr., Secretary
Gregory J. Thorpe, Ph.D., Acting Director
August 6, 2001
MR. CARSON H. DURHAM, III, MAYOR
TOWN OF SHALLOTTE
POST OFFICE BOX 2287
SHALLOTTE, NORTH CAROLINA 28459
1�
•
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Permit No. WQ0000798
Town of Shallotte
Town of Shallotte Wastewater Treatment Plant
Sprayfield Expansion - Fields 6, 7, 8, and 13
Wastewater Treatment and
Spray Irrigation Facilities
Brunswick County
Dear Mr. Durham:
In accordance with your permit modification application package received on December 22, 1999 as
well as the additional information received on February 17, 2000; March 21, 2000; May 9, 2000; June 1, 2000;
December 8,2000; January 9, 2001; May 22, 2001; and June 26, 2001; we are forwarding herewith Permit No.
W00000798, dated August 6, 2001, to the Town of Shallotte for the construction and continued operation of the
subject wastewater treatment and spray irrigation facilities.
This permit shall be effective from the date of issuance until February 28, 2006; shall void Permit No.
W00000798, issued on March 30, 2001; and shall be subject to the conditions and limitations as specified
therein.
This permit approves the modification of the existing wastewater treatment and spray irrigation facilities
such that they may accommodate up to 500,000 gallons per day of influent wastewater flow. The Division of
Water Quality (Division) still has serious concerns about the lack of operational flexibility and efficiency that is
currently incorporated into the design of the facilities. Therefore, the Division urges the Permittee to look
critically at the operation of the wastewater treatment and spray irrigation facilities as a whole and consider a
permit modification in the near future to upgrade the pumping capabilities of the "Original" system and the
"Phase r'P'Phase I Expansion" systems as well as additional irrigation capacity to reduce the number of
consecutive hours that must be accommodated by the Permittee's staff in order to operate and maintain the
facilities properly.
Please take the time to review this permit thoroughly as some of the conditions contained therein
may have been added or changed since the last issuance of this permit. Of special interest are the following:
♦ System Description: The system description has been amended to allow the continued operation of
the existing wastewater treatment and spray irrigation facilities as well as the construction and
operation of new and modified facilities. Note that the system description is not intended to be an
t\ all-inclusive list of each component of the wastewater treatment and spray irrigation facilities, rather
the approved plans and specifications contains detailed information regarding the facilities that the
Division considers to be approved.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] Fax [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

♦ Condition I. 1.: Since treatment and disposal will be on-going during the construction period for the
new and modified spray irrigation facilities, this new condition requires that construction be
scheduled and performed in a way such that existing service is not interrupted, operaticn of the
existing facilities is not jeopardized, and overflows/bypasses/discharges of wastewater are avoided.
♦ Condition I. 2.: Following construction and prior to operation of the new and modified spray
irrigation facilities, this condition requires that the Division must receive fust receive a document
from a North Carolina -licensed professional engineer certifying that the facilities have been
installed with the permit, the approved plans and specifications, and other supporting materials.
♦ Condition I. 3.: This condition requires that the Water Quality Section of the Division's
Wilmington Regional Office be contacted in advance of operating the new and modified spray
irrigation facilities so that an in-place inspection of the installed facilities can be made.
♦ Condition H. 7.: This condition has been amended to include the approved cumulative and
instantaneous application rates for the new and modified spray irrigation facilities. In addition,
guidance is included in this condition regarding visual observation of each field's ability to
assimilate the applied wastewater effluent during a spray irrigation event as well as how long such
events may take place before a period of rest is needed.
♦ Condition H. 8.: This condition has been amended to include information regarding the year-round
vegetative cover to be established on the wetted area of the new spray irrigation facilities.
♦ Condition H. 10.: Language has been added to this condition to require the Permittee to repair any
spray irrigation facilities adequately that have been damaged as a result of tree cover crop
harvesting prior to putting the facilities back into operation.
♦ Condition III. 2. through Condition III. 5.: These conditions have been modified to be more specific
in that separate sampling events shall be performed and monitoring records shall be kept for the
"Original" system (i.e., to be reported under the number W00000798 -A for the purpose of permit
compliance) and the "Phase r' /"Phase I Expansion" systems (i.e., to be reported under the number
WQ0000798-B for the purpose of permit compliance).
♦ Condition III. 7.: Separate monitoring forms (i.e., Form NDAR-1, Form NDMR-1, and Form MR -
3) shall now be required for the WQ0000798-A facilities and the WQ0000798-B facilities.
♦ Condition VI. 8.: This condition contains a standard requirement that an application for renewal
shall be submitted to the Division for review at least six months in advance of the permit's
expiration. However, language has been added to this condition that requires a modification request
be included as part of the permit renewal application. The purpose of this modification is to permit
an expansion of the spray irrigation facilities to support the hydraulic and nutrient demands of the
facilities that are taken off-line in order to permit harvesting.
As always, 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.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This
request must 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, 6714 Mail Service Center, Raleigh, NC 27699-
6714. Unless such demands are made, this permit shall be final and binding.

One set of the approved plans and specifications is being forwarded to you. If you need additional
information concerning this matter, please contact Ms. Shannon Mohr Thornburg at [phone], extension
353. /7
7 Gregory J. Thorpe, Ph.D.
cc: East Coast Engineering Company, P.A.
Brunswick County Health Department
Wilmington Regional Office, Water Quality Section
Wilmington Regional Office, Groundwater Section
Central Office, Groundwater Section
Non -Discharge Compliance/Enforcement Unit
Technical Assistance and Certification Unit

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
WASTEWATER TREATMENT AND SPRAY 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
Town of Shallotte
Brunswick County
FOR THE
construction and continued operation of 500,000 -gallon per day wastewater treatment and spray irrigation
facilities (i.e., 303,720 gallons per day of wastewater treatment and spray irrigation capacity are existing). The
facilities are divided into two separate and distinct treatment and disposal process trains paths that shall be
known by the identifiers WQ0000798-A (i.e., the "Original" system) and WQ0000798-B (i.e., the "Phase
PY"Phase I Expansion" systems), respectively, for the purpose of permit compliance.
The WQ0000798-A wastewater treatment and spray irrigation facilities shall treat and dispose of a maximum of
175,000 gallons per day of wastewater and shall consist of the following minimum components: an ultrasonic -
type flow metering device to measure all wastewater that is influent to the facilities; two stair step -type cascade
influent paths to dual, 2.75 -acre facultative lagoons with a natural clay liner and reserve storage capacity; dual
manually -cleaned coarse screens; a manually -cleaned fine -mesh screen for wastewater effluent screening;
chlorination facilities; a mechanical float -type flow metering device to measure all wastewater effluent; an
irrigation pump station with two, 400 -gallon per minute pumps; a solid -set spray irrigation field that has
approximately 40.8 acres of wetted area (i.e., including 14.8 acres currently being irrigated from the
WQ0000798-A facilities as well as 26.0 acres currently being irrigated from the WQ0000798-B facilities that
shall be modified such that they will be irrigated from the WQ0000798-A facilities) ; and all associated piping,
valves, electrical and instrumental/control systems, and other appurtenances necessary to make a complete and
functional wastewater treatment and spray irrigation operation.
The WQ0000798-B wastewater treatment and spray irrigation facilities shall treat and dispose of a maximum of
325,000 gallons per day of wastewater and shall consist of the following minimum components: approximately
7,400 linear feet of eight -inch force main to convey influent wastewater to the facilities; an ultrasonic -type flow
metering device to measure all wastewater that is influent to the facilities; an influent bar screen; an 11.6 -acre
treatment and storage lagoon with a 40 -mil high-density polyethylene (HDPE) liner; a trash screen for
wastewater effluent screening; a gaseous chlorine feed system and chlorine contact basin for wastewater effluent
disinfection; an irrigation pump station with two, 820 -gallon per minute vertical turbine pumps and in-line
strainers; an ultrasonic -type flow metering device to measure all wastewater effluent; a solid -set spray irrigation
field that has approximately 93.4 acres of wetted area (i.e., including 39.0 acres that are currently being irrigated
from the WQ0000798-B facilities as well as 54.4 acres that are new); and all associated piping, valves, electrical

and instrumental/control systems, and other appurtenances necessary to make a complete and functional
wastewater treatment and spray irrigation operation.
The above-described existing and new wastewater treatment and spray irrigation facilities are intended to serve
the Town of Shallotte and its wastewater customers with no discharge of wastes to surface waters, pursuant to
the permit modification application package received on December 22, 1999 as well as the additional
information received on February 17, 2000; March 21, 2000; May 9, 2000; June 1, 2000; December 8, 2000;
January 9, 2001; May 22, 2001; and June 26, 2001, and in conformity with the project plan, specifications, and
other supporting data subsequently filed and approved by the Department of Environment and Natural
Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until February 28, 2006; shall void Permit No.
WQ0000798, issued on March 30, 2001; and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDARDS
I. Construction of the new and modified wastewater treatment and spray irrigation facilities (i.e., those
approved with this permit modification) shall be scheduled and performed so as not to interrupt the
service provided by and the proper operation of the existing wastewater treatment and spray
irrigation facilities (i.e., those previously approved under this permit) nor result in an overflow,
bypass, or discharge of wastewater to the surface waters of the State.
2. Upon completion of construction and prior to operation of the new and modified wastewater
treatment and spray irrigation facilities (i.e., those approved with this permit modification), a
certification shall be received from a North Carolina -licensed professional engineer certifying that
the facilities have been installed in accordance with this permit, the approved plans and
specifications, and other supporting materials. If the facilities are to be constructed in phases and
partially certified. the Permittee shall retain the responsibility to track further construction approved
under the same permit and shall provide a final certificate of completion once construction of all of
the facilities have been completed. Mail one copy of any partial and final certifications to the
NCDENR-DWQ, Water Quality Section, Non -Discharge Permitting Unit, 1617 Mail Service
Center, Raleigh, NC 27699-1617.
3. The Division's Wilmington Regional Office, telephone number [phone], shall be notified at
least 48 hours in advance of operation of the new and modified wastewater treatment and spray
irrigation facilities so that an in-place inspection can be made. Such notification to the regional
water quality supervisor shall be made during normal office hours (i.e., from 8:00 a.m. until 5:00
p.m.) on Monday through Friday, excluding State Holidays.
4. The wastewater treatment and spray irrigation facilities shall be effectively maintained and operated
at all times so that there is no discharge to the surface waters nor any contamination of groundwater
that will render them unsatisfactory for normal use. In the event that these facilities fail to perform
satisfactorily, including the creation of nuisance conditions or failure of the irrigation areas to
assimilate the wastewater adequately, 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.
5. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to
surface waters or groundwater resulting from the operation of the wastewater treatment and spray
irrigation facilities.

6. The residuals generated from the wastewater treatment facilities shall be disposed in accordance
with North Carolina General Statute §143-215.1 and in a manner approved by the Division.
Diversion or bypassing of the untreated wastewater from the wastewater treatment and spray
irrigation facilities shall be prohibited.
8. The following buffers shall be maintained by the wastewater treatment and spray irrigation
facilities:
a. 400 feet between the wetted area and any residence or place of public assembly under separate
ownership,
b. 150 feet between the wetted area and any property line,
c. 100 feet between the wetted area and any well (i.e., with the exception of an approved
groundwater monitoring well),
d. 100 feet between the wetted area and any drainageway or surface water,
e. 50 feet between the wetted area and any public right-of-way,
f. 100 feet between wastewater treatment units and any well (i.e., with the exception of an
approved groundwater monitoring well), and
g. 50 feet between wastewater treatment units and any property line.
Some of the buffers specified above may not have been included in previous permits for the
wastewater treatment and spray irrigation facilities. The Pemmittee does not have to modify
previously -approved facilities to comply with these buffers unless specifically required by the
Division to do so, nor are these buffers intended to prohibit or prevent modifications that may be
required by the Division to improve the performance of the existing facilities. These buffers do,
however, apply to modifications of the system that are for the purpose of increasing the wastewater
flow that is tributary to the facilities. These buffers do apply to any expansion or modification of
the facilities and apply in instances in which the sale of property would cause any of the buffers
with which the facilities now comply to be violated. The Permittee shall be advised that any
modification to the existing facilities will require a permit modification.
II. OPERATION AND MAINTENANCE REQUIREMENTS
1. The wastewater treatment and spray irrigation facilities shall be properly maintained and operated at
all times. The Permittee shall operate the spray irrigation facilities in accordance with the
instructions provided in the existing operation and maintenance manual.
2. Upon classification of the wastewater treatment and spray irrigation facilities by the Water Pollution
Control System Operators Certification Commission (WPCSOCC), the Permittee shall employ a
certified operator to be in responsible charge (ORC) of the facilities. The operator shall hold a
certificate of the type and grade at least equivalent to or greater than the classification assigned to
the facilities by the WPCSOCC. The Permittee shall also employ a certified back-up operator of the
appropriate type and grade to comply with the conditions of 15A NCAC 8G .0202. The ORC shall
visit Class I facilities at least weekly and Class II, III, and IV facilities at least daily, excluding
weekends and holidays; shall properly manage and document daily operation and maintenance of
the facilities; and shall comply with all other conditions of 15A NCAC 8G.0202. Once the facilities
are classified, the Permittee shall submit a letter to the WPCSOCC that designates the ORC within
30 days after construction of the facilities are 50 percent complete.

3. The wastewater treatment and spray irrigation facilities shall be effectively maintained and operated
as a non -discharge system to prevent the discharge of any wastewater and/or wastewater effluent
resulting from the operation of these facilities.
4. Freeboard in any of the treatment and storage lagoons associated with the wastewater treatment
facilities shall not be less than two feet at any time.
5. No type of wastewater other than wastewater effluent from the Town of Shallotte Wastewater
Treatment Plant shall be sprayed onto the wetted area of the spray irrigation facilities.
6. Adequate measures shall be taken to prevent wastewater effluent runoff from the wetted area of the
spray irrigation facilities.
7. The application rates onto the wetted area of the spray irrigation facilities shall not exceed the
following:
Field No:
Facilities No.
Wetted
Area
(acreage)
Cumulative
Application Rate"
(inches per year)
Vegetative
Cover Crop
lA
W00000798 -A
6.50
44.20
Hardwood Plantation°
1B
W 0000798-A
6.50
44.20
Hardwood Plantationd
2A
WQ0000798-A
6:50
44.20
Hardwood Plantation
2B
WQ0000798-A
6.50
44.20
Hardwood Plantation
3
W 0000798-B
13.00
44.20
Hardwood Plantationd
4
W00000798 -B
13.00
44.20
Hardwood Plantation
5
W 0000798-B
13.00
44.20
Hardwood Plantationd
6`
W 0000798-B
12.16
53.04
Hardwood Plantation
7`
W00000798 -B
12.28
39.52
Hardwood Plantation'
8`
W00000798 -B
23.36
52.00
Hardwood Plantation
9
W 0000798-A
2.00
100.36
Coastal Bermuda/Rye
10
W 0000798-A
5.10
78.00
Coastal Bermuda/Rye
11
WQ0000798-A
4.70
78.00
Coastal Bermuda/R e
12
W 0000798-A
3.00
78.00
Coastal Bermuda/Rye
13`
WQ0000798-B
6.60
46.80
Hardwood Plantation
Sub -Total
WQ000798-A
40.80
511.16
n/a
Sub -Total
WQ000798-B
93.40
323.96
n/a
Total
n/a
134.2
835.12
n/a
a Each field shall be closely monitored during any spray irrigation event. Should the applied
wastewater effluent be observed to accumulate on the ground surface, the application rates
shall be reduced or irrigation shall be ceased accordingly.
° The cumulative application rate shall be equivalent to the loading of wastewater effluent
over any 12 -month period.
Irrigation on these fields shall be performed for maximum period of one hour and shall be
followed by a minimum rest period of three hours prior to initiating another spray irrigation
event.
d A suitable year-round grass cover crop shall be established and maintained in between the
rows of the trees in those fields containing a hardwood plantation.

8. A suitable year-round vegetative cover of coastal bermuda/rye grasses or hardwood trees shall be
maintained on the wetted area of the existing and modified spray irrigation facilities (i.e., those 1
previously approved under this permit).
A suitable, year-round vegetative cover of hardwood trees (i.e., bald cypress, green ash, sweet gum,
and/or sycamore) and fescue/rye grasses shall be established and maintained on the wetted area of
the new spray irrigation facilities (i.e., those approved with this modification).
Herbicides shall be allowable only to prepare the new spray irrigation facilities for planting and to
maintain the areas immediately around sprinkler risers in the new, modified, and existing spray
irrigation facilities.
Once established, the vegetative cover on the wetted area of the new, modified, and existing spray
irrigation facilities shall be observed and maintained as follows:
a. Inspect the grass cover crop once per week and maintain as necessary to harvest prior to
reaching a 12 -inch height. Harvested grass shall be removed from the wetted area (i.e., with the
exception of those fields with a tree cover crop);
b. Evaluate the grass cover crop in September and March for survival and cover percentage and, if
necessary, rake all bare areas to the surface layer and reseed;
c. Evaluate the tree cover crop annually and prune as necessary to ensure proper distribution of the
irrigated wastewater effluent (i.e., tree prunings shall be removed from the wetted area); and
d. Have the tree cover crop evaluated by a arborist or agronomist once per permit cycle to
determine overall vegetative cover health and to make recommendations as to those mature,
dominant stands that should be whole -tree harvested and removed from the area.
e. Harvest and reestablish the tree cover crop in accordance with the "Tree Harvest Operational
Plan" that was prepared by East Coast Engineering Company, P.A. (i.e., see Attachment A).
9. Irrigation shall not be performed during inclement weather or when the ground is in a condition that
will cause runoff.
10. No traffic or equipment shall be allowed on the wetted area of the spray irrigation facilities except
while installation occurs or while normal maintenance is being performed. Damage caused to the
wetted area of the spray irrigation facilities as a result of harvesting the tree cover crop shall be
adequately repaired prior to putting facilities back into operation.
11. Public access to the wetted area of the spray irrigation facilities shall be controlled during active
use. Such controls may include fencing, posting of signs that describe the activities being
conducted at the facilities, etc.
III. MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring (i.e., including groundwater, surface water, soil or plant tissue analyses) deemed
necessary by the Division to ensure surface water and groundwater protection shall be established
and an acceptable sampling reporting schedule shall be followed.

2. Influent wastewater to each of the wastewater treatment facilities (i.e., both the WQ0000798-A
facilities and the WQ0000798-B facilities) shall be continuously monitored and recorded. Daily
flow values shall be reported on Form NDMR-1. The Permittee shall install an appropriate flow
measurement device consistent with approved engineering and scientific practices to ensure the
accuracy and reliability of 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
measurements is consistent with the accepted capability of that type of device.
Calibration records for the flow measurement devices 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
include:
a. Data of flow measurement device calibration,
b. Name of person performing calibration, and
c. Percent from true flow.
3. Adequate records shall be maintained by the Permittee tracking the amount of wastewater effluent
irrigated on each of the spray irrigation facilities (i.e., both the WQ0000798-A facilities and the
WQ0000798-B facilities). These records shall include, but are not necessarily limited to, the
following information:
a. Date of irrigation;
b. Volume of wastewater effluent irrigated;
C. Field irrigated;
d. Length of time field is irrigated;
e. Continuous weekly, monthly, and year-to-date hydraulic (i.e. in inches per acre) loadings for
each field;
f Weather conditions; and
g. Maintenance of cover crops.
4. The wastewater effluent from each of the wastewater treatment facilities (i.e., both the
WQ0000798-A facilities and the WQ0000798-B facilities) shall be monitored by the Permittee at a
point following all wastewater treatment processes (i.e., including disinfection) and prior to
irrigation every month for the following parameters:
Ammonia -Nitrogen (NH3-N) Total Kjeldahl Nitrogen (TKN)
Biochemical Oxygen Demand (BODS) Total Suspended Solids (TSS)
Fecal Coliform Plant Available Nitrogen (PAN)
Nitrate Nitrite -Nitrogen (NO3-NOS-N) (By Calculation)
The wastewater effluent from each of the wastewater treatment facilities (i.e., both the facilities
W00000798 -A and the WQ0000798-B facilities) shall be monitored by the Permittee at a point
following all wastewater treatment processes (i.e., including disinfection) and prior to irrigation
every day for the following parameters:
Effluent Flow
pH
Total Residual Chlorine

5. The surface water from upstream and downstream monitoring points for the wastewater treatment
and spray irrigation facilities shall be monitored by the Permittee every month for the following
parameters:
Fecal Coliform Total Nitrogen
pH
The upstream surface water monitoring points for the WQ0000798-A facilities and the
W00000798 -B facilities shall be located at accessible points on Stinking Will Branch and Charles
Branch and at the intersection of Mulberry Branch and Forest Drive Extension, respectively. The
downstream surface water monitoring points for the WQ0000798-A facilities and the WQ0000798-
B facilities shall be located immediately below the confluence of Stinking Will Branch Charles
Branch and at the intersection of Mulberry Branch and North Carolina State Road 1348,
respectively.
6. A representative annual soils analysis (i.e., Standard Soil Fertility Analysis) shall be conducted by
the Permittee on soil sample(s) from each field of the spray irrigation facilities. The results of this
analysis shall be maintained on file by the Permittee for a minimum of five years. The Standard
Soil Fertility Analysis shall include, but shall not necessarily be limited to, the following
parameters:
Acidity Exchangeable Sodium Percentage Phosphors
Base Saturation (By Calculation) Magnesium Potassium
Calcium Manganese Sodium
Cation Exchange Capacity Percent Humic Matter Zinc
Copper pH
7. For both the WQ0000798-A facilities and the WQ0000798-B facilities, three copies of all operation
and irrigation records (i.e., as specified in Condition III. 3.) shall be submitted on Form NDAR-1 on
or before the last day of the month following the irrigation event. For both the WQ0000798-A
facilities and the WQ0000798-B facilities, three copies of all wastewater monitoring data (i.e., as
specified in Condition III. 2. and Condition I11. 4.) shall be submitted on Form NDMR-1 on or
before the last day of the month following the monitoring/sampling month. For both the
WQ0000798-A facilities and the WQ0000798-B facilities, three copies of all surface water
monitoring data (i.e., as specified in Condition III. 5.) shall be submitted on Form MR -3 on or
before the last day of the month following the monitoring/sampling month. All information shall be
submitted to the following address:
NCDENR-DWQ
Water Quality Section
Non -Discharge Compliance/Enforcement Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
8. Noncompliance Notification:
The Permittee shall report by telephone to the Water Quality Section of the Division's 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 facilities that 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 renders the wastewater
r treatment and spray irrigation facilities incapable of adequate treatment and disposal such as
mechanical or electrical failures of pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or other facility resulting in a bypass 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 facilities have gone out of
compliance with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letterform within
five 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
1. The nine existing groundwater monitoring wells (i.e., MW -6, MW -7, MW -8, MW -9, MW -10, MW_
11, MW -12, MW -13, and MW -14) shall be sampled every March, July, and November for the
following parameters:
Chlorides Total Ammonia -Nitrogen (NH3-N)
Fecal Coliform Total Dissolved Solids (TDS)
Nitrate -Nitrogen (NO3-N) Total Organic Carbon (TOC)
pH Water Level
Volatile Organic Compounds (VOCs) in November only, using one of the following methods:
(A) Standard Method 6230D (PQL at 0.5 gg/L or less),
(B) Standard Method 6210D (PQL at 0.5 gg/L or less),
(C) EPA Method 8021 (Low Concentration, PQL at 0.5 gg/L or less),
(D) EPA Method 8260 (Low Concentration, PQL at 0.5 gg/L or less), or
(E) Another method with prior approval by the Groundwater Section Chief.
Any method used shall meet the following qualifications:
(1) The laboratory shall be Division certified to run any method used.
(2) The method used shall, at a minimum, jnclude all the constituents listed in
Table VHl of Standard Method 6230D.
(2) The method used shall provide a PQL at 0.5 gg/L or less, which shall be
supported by laboratory proficiency studies as required by the Division's
Laboratory Certification Unit. Any constituents detected above the MDL, but
below the PQL at 0.5 pg/L, shall be qualified (estimated) and reported.
If any VOCs are detected by the methods listed, then the Wilmington Regional Office Groundwater
Supervisor, telephone number [phone], shall be contacted immediately for further
instructions regarding any additional follow-up analyses required. The results of all initial and
follow-up analyses shall be submitted simultaneously.
If TOC concentrations greater than 10 milligrams per liter are detected in any downgradient
groundwater monitoring well, additional groundwater sampling and analysis shall be conducted to
identify the individual constituents comprising the TOC concentration. If the TOC concentration in
the background (i.e., upgradient) groundwater monitoring well exceeds 10 milligrams per liter, this
concentration shall be taken to represent the naturally -occurring TOC concentration in the
groundwater. Any exceedance of this naturally -occurring TOC concentration in downgradient wells
shall be subject to additional groundwater sampling and analysis as described above.

The measurement of water levels shall be made prior to sampling the groundwater for the remaining
parameters. The depth to water in each groundwater monitoring well shall be measured from the
surveyed point on the top of the casing.
The results of the sampling and analysis shall be received on the "Groundwater Quality Monitoring:
Compliance Report Form" (i.e., GW -59 Form) on or before the last working day of the month
following the sampling month at the following address:
NCDENR-DWQ
Groundwater Section
Permits and Compliance Unit
1636 Mail Service Center
Raleigh, North Carolina 27699-1636
2. The COMPLIANCE BOUNDARY for the disposal system shall be as specified by regulations in
15A NCAC 2L (i.e., "Groundwater Classifications and Standards"). The Compliance Boundary for
a disposal system individually permitted after December 31, 1983 shall be established at either (1)
250 feet from the waste disposal area or (2) 50 feet within the property boundary, whichever is
closest to the waste disposal area. An exceedance of groundwater quality standards at or beyond the
Compliance Boundary shall be subject to immediate remediation action in addition to the penalty
provisions applicable under North Carolina General Statute §143-215.6A(a)(1).
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY shall be established around the
disposal system midway between the Compliance Boundary and the perimeter of the waste disposal
area. Any exceedance of groundwater quality standards at the Review Boundary shall require
remediation action on the part of the Permittee.
3. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
V. INSPECTIONS
Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to ensure proper
operation of the wastewater treatment and spray irrigation facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and spray irrigation 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 or other permitting
authority.
3. Any duly authorized officer, employee, or representative of the Division may, upon presentation of
credentials, enter and inspect any property, premises or place on or related to the wastewater
treatment and spray irrigation facilities at any reasonable time for the purpose of determining
compliance with this permit; may inspect or copy any records that must be maintained under the
terms and conditions of this permit, and may obtain samples of groundwater, surface water, or
leachate.

VI. GENERAL CONDITIONS
1. This permit shall become voidable unless the wastewater treatment and spray irrigation facilities are
constructed in accordance with the conditions of this permit, the approved plans and specifications,
and other supporting data.
2. This permit shall be effective only with respect to the nature and volume of wastes described in the
application and other supporting data.
3. This permit shall not be transferable. In the event there is a desire for the wastewater treatment and
spray irrigation facilities to change ownership, or there is a name change of the Permittee, a formal
permit request shall be submitted to the Division accompanied by documentation from the parties
involved and other supporting materials as may be appropriate. The approval of this request shall
be considered on its merits and may or may not be approved.
4. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee
to an enforcement action by the Division in accordance with North Carolina General Statutes §143-
215.6A through § 143-215.6C.
5. The issuance of this permit shall not preclude the Permittee from complying with any and all
statutes, rules, regulations, or ordinances that may be imposed by other government agencies (i.e.,
local, state, and federal) which have jurisdiction, including, but not limited to, applicable river
buffer rules in 15A NCAC 2B .0200, soil erosion and sedimentation control requirements in 15A
NCAC Chapter 4 and under the Division's General Permit NCGO100000, and any requirements
pertaining to wetlands under 15A NCAC 2B .0200 and 15A NCAC .0500.
6. A set of approved plans and specifications for the wastewater treatment and spray irrigation
facilities shall be retained by the Permittee for the life of the facilities.
The annual administering and compliance fee shall be paid by the Permittee within 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 15A NCAC 2H.0205 (c)(4).
8. The Permittee, at least six months prior to the expiration of this permit, shall request its extension as
well as a modification and schedule to expand the spray irrigation facilities. The purpose of this
expansion shall be to establish a "repair area" that can meet the hydraulic and nutrient demands that
will be created when certain spray irrigation fields are taken out of service for harvesting and
reestablishment of the tree cover crop (i.e., expected to be as soon as eight years following the
issuance of this permit). Upon receipt of the request, the Division shall review the adequacy of the
wastewater treatment and spray irrigation facilities described therein, and if warranted, shall extend
and modify the permit for such period of time and under such conditions and limitations as it may
deem appropriate.
Permit issued thi a sixth day of August, 2001.
NORT OLINA NTAL MANAGEMENT COMMISSION
Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number W00000798
10

Permit No. WQ0000798
August 6, 2001
ENGINEER'S CERTIFICATION
Partial Final
L , 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
project,
Project Name
Location and County
for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and intent
of this permit, the approved plans and specifications, and other supporting materials.
Signature
Date
11
Registration No.

( Fax: [phone]
Office: 910.71;.8029
ATTACHMENT A
East Coast
Engineering Company, P.A.
Consulting Engineers
Toren of Shallotte — Wastewater Treatment Plant Expansion
Tree Harvest Operational Plan
4918 Main Street
Post Office Box 2469
Shallotte, NC 28459
In accordance with the Hardwood Plantation Guide, dated November 2000, prepared by
The Triangle Group, "....pulpwood harvest may occur at 8-20 years depending on wastewater
loading, species, and site characteristics." The report recommends that the harvesting of trees
be performed by clearcutting an entire sprayfield. The following operational plan is
recommended to insure minimal damage to the irrigation system, re-establishment of
groundcover, and resumption of normal operations.
1. Prior to any tree harvesting operations, the Town shall have a dedicated sprayfield
repair area permitted and constructed. This repair area will be capable of receiving
wastewater flow of approximately 43,000 gpd, which is basically the same size as
the Town's largest sprayfield.
2. The Town of Shallotte shall contract with a qualified harvesting contractor to
harvest trees between early September and mid October.
3. Spray irrigation on the sprayfield to be harvested shall cease a minimum of 14 days
prior to the date that clearcutting is to begin so that the field may dry out.
4. All spray nozzles and risers shall be removed and each line capped at or below the
ground surface. All sprinkler types and locations should be documented to enhance
relocation after completion of clearing operations.
5. Immediately prior to clearcutting, Town personnel and harvesting contractor need to
inspect the sprayfield to be harvested to insure that fields are dry, and properly
prepared.
6. After clearing is completed, all leftover limbs and debris need to be removed and
any holes or ruts need to be smoothed over.
7. Upon completion of any necessary regrading, risers and spray nozzles need to be
replaced, tested, inspected, and repaired if necessary.
8. Once the field is ready to go back into service, the entire sprayfield needs to be
reseeded with fescue and rye grain to establish a n erosion resistant vegetative
groundcover.
9. Until grass cover is established, operator needs to inspect the fields regularly to
detect any early signs of erosion, and repair any areas as needed.
10. Once grass cover is established, the sprayfield can be returned to normal service.
Depending on tree growth, it is anticipated that one or two fields per year will be
harvested. Once additional fields are brought online in the future, there will also need to be
additional corresponding repair areas set aside to substitute for the reduction of spray areas
during tree harvesting.

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FIGURE 1
TOWN OF SHALLOTTE
SPRAY IRRIGATION EXPA_NISION AREA
BRUNSWICK COUNTY
_` _ • hK Natant HIII WQ0000798/GW00016
SITE LOCATION KALP