WQ0004332_Final Permit_19960122

State'of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
The Honorable Roy L. Harrell, Mayor
Town of Edenton
Post Office Box 300
Edenton, North Carolina 27932
Dear Mayor Harrell:
January 22, 1996
Subject: Permit No. WQ0004332
Town of Edenton
Wastewater Treatment and
Spray Irrigation System
Chowan County
In accordance with the correction request received November 13, 1995 from the Wooten Company
on your behalf, we are forwarding herewith Permit No. WQ0004332 as corrected, dated January 22,
1996, to the Town of Edenton for the continued operation of the subject wastewater treatment and spray
irrigation facilities. This permit is being amended to correct a mistake in the October 30, 1995 permit.
Monitoring Well #5 should be replaced in Groundwater Condition No. V 1 with Monitoring Well #4. No
other conditions have been amended.
This permit shall be effective from the date of issuance until September 30, 2000, shall void Permit
No. WQ0004332 issued October 30, 1995, 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.
If any part of the modified portions of this permit is unacceptable, you have the right to request 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 the North Carolina
General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC
27611-7447. Unless such demands are made this permit shall be final and binding.
If you any questions concerning the pretreatment requirements, please contact the Washington
Regional Office at [phone], or Ms. Dana Folley with the Central Pretreatment Staff at (919) 733-
5083 ext. 523. If you have any other questions concerning the subject permit, please contact Mr. Michael
D. Allen at [phone] ext. 547.
Sincerely,
X�C�
A. Prest Howard, Jr., P.E.
cc: Chowan County Health Department
The Wooten Company
Washington Regional Office, Water Quality Section
Washington Regional Office, Groundwater Section
Bob Cheek, Groundwater Section, Central Office
Training and Certification Unit (no revised rating)
Facilities Assessment Unit
Pretreatment Group
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
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 THE
Town of Edenton
Chowan County
FOR THE
continued operation of a 1.076 MGD spray irrigation treatment and disposal facility consisting of a pump
station with two (2) 2,100 GPM pumps, degritting unit, screening basket, an air scrubber unit providing
hydrogen peroxide odor control system, approximately 19,405 linear feet of 18-inch force main and force
main discharge odor control chlorination system, a 28 acre stabilization and storage lagoon (with a baffle
wall and an aeration area including three [3] 20 HP directional aerators) providing a minimum of 21 days
of detention and a 45 day storage capacity, a subsurface drainage system with diffused subsurface
discharge, chlorination facility, a spray irrigation pump station housing two (2) pumps at 4,026 GPM
each, spray irrigation lines with solid -set spray risers covering 300 wetted acres, and all associated piping,
valves, controls and appurtenances to serve the Town of Edenton, with no discharge of wastes to the
surface waters, pursuant to the correction request received November 13, 1995 from the Wooten
Company on your behalf, and in conformity with the project plan, specifications, and other supporting
data subsequently filed and approved by the Department of Environment, Health and Natural Resources
and considered a part of this permit.
This permit shall be effective from the date of issuance until September 30, 2000, shall void Permit
No. WQ0004332 issued October 30, 1995, and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE TA DARD
1. The 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 ground waters 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
irrigation area to adequately assimilate the wastewater, the Permittee shall tape immediate
corrective actions including those actions that may be required by the Division of
Environmental Management, such as the construction of additional or replacement
wastewater treatment and disposal facilities.
2. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.

3. The residuals generated from these treatment facilities must be disposed in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Environmental Management.
4. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
5. The following buffers shall be maintained:
a) 400 feet between wetted area and any residence or places of public assembly under
separate ownership,
b) 150 feet between wetted area and property lines,
c) 100 feet between wetted area and wells,
d) 100 feet between wetted area and drainageways or surface water bodies,
e) 50 feet between wetted area and public right of ways,
f) 100 feet between wastewater treatment units and wells, and
g) 50 feet between wastewater treatment units and property lines.
Some of the buffers specified above may not have been included in previous permits for
this waste treatment and disposal system. These buffers are not intended to prohibit or
prevent modifications, which are required by the Division, to improve performance of the
existing treatment facility. These buffers do, however, apply to modifications of the
treatment and disposal facilities which are for the purpose of increasing the flow that is
tributary to the facility. These buffers do apply to any expansion or modification of the
spray irrigation areas and apply in instances in which the sale of property would cause any
of the buffers now complied with, for the treatment and disposal facilities, to be violated.
The applicant is advised that any modifications to the existing facilities will require a permit
modification.
II. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of
the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class H, III, and IV facility at least daily, excluding weekends and
holidays, and must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202.
3. A suitable vegetative cover for the spray area (s) shall be maintained.
4. Irrigation shall not be performed during inclement weather or when the ground is in a
condition that will cause runoff.
5. Adequate measures shall be taken to prevent wastewater runoff from the spray field.
6. 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.
7. The application rate shall not exceed a cumulative loading of 46.8 inches over any twelve
(12) month period at an instantaneous application rate not to exceed 0.25 inches per hour.
2

8. No type of wastewater other than that from the Town of Edenton shall be sprayed onto the
irrigation area.
9. No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
10. Public access to the land application sites shall be controlled during active site use. Such
controls may include the posting of signs showing the activities being conducted at each
site.
11. Freeboard in the treatment/storage lagoons shall not be less than two feet at any time.
M. ERETREATMENT REQUIREMENTS
A. RquirrmQn for Control of Pollutants Attribute to Indu3trial Users,
1. Pollutants attributable to inputs from industries using the municipal system may be present
in the Permittee's discharge. At such time as sufficient information becomes available to
establish limitations for such pollutants, this permit may be revised to specify effluent
limitations for any or all of such other pollutants.
2. Under no circumstances shall the permittee allow introduction of the following wastes in
the waste treatment system:
a. Pollutants which create a fire or explosion hazard in the POTW, including, but not
limited to, wastestreams with a closed cup flashpoint of less than 140 degrees
Fahrenheit or 60 degrees Centigrade using the test methods specified in 40 CFR
261,21;
b. Pollutants which will cause corrosive structural damage to the POTW, but in no case
Discharges with pH lower than 5.0, unless the works is specifically designed to
accommodate such Discharges;
c. Solid or viscous pollutants in amounts which will cause obstruction to the flow in the
POTW resulting in interference;
d. Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a
Discharge at a flow rate and/or pollutant concentration which will cause Interference
with the POTW;
e. Heat in amounts which will inhibit biological activity in the POTW resulting in
Interference, but in no case heat in such quantities that the temperature at the POTW
Treatment Plant exceeds 40°C (104°F) unless the Division, upon request of the POTW,
approves alternate temperature limits;
f. Petroleum oil, nonbiodegradable cutting oil; or products'of mineral oil origin in
amounts that will cause interference or pass through;
g. Pollutants which result in the presence of toxic gases, vapors, or fumes within the
POTW in a quantity that may cause acute worker health and safety problems;
h . Any trucked or hauled pollutants, except at discharge points designated by the POTW.
3. It may be necessary for the permittee to supplement the requirements of 15A NCAC 2H
.0900 to ensure compliance by the permittee with all applicable limitations. Such actions
by the permittee may be necessary regarding some or all of the industries discharging to the
municipal system.

4. The permittee shall require any industrial discharges into the permitted system to meet the
regulations of 15A NCAC 2H .0900. Prior to accepting wastewater from any significant
industrial user, the permittee shall either develop and submit to the Division a Pretreatment
Program for approval per 15A NCAC 2H .0907(a) or modify an existing Pretreatment
Program per 15A NCAC 2H .0907(b).
5. This permit shall be modified, or alternatively, revoked and reissued, to incorporate or
modify an approved POTW Pretreatment Program or to include a compliance schedule for
the development of a POTW Pretreatment Program as required under the
15A NCAC 2H .0900 regulations by the requirements of the approved State pretreatment
program, as appropriate.
B . Pretreatment Program ReguirgMents
Under authority of North Carolina General Statute 143-215.3 (14) and implementing
regulations 15A NCAC 2H .0900, and in accordance with the approved pretreatment program,
all provisions and regulations contained and referenced in the Pretreatment Program Submittal
are an enforceable part of this permit.
The permittee shall operate its approved pretreatment program in accordance with the State
Pretreatment Regulations 15A NCAC 2H .0900 and the legal authorities, policies, procedures,
and financial provisions contained in its pretreatment program submission and Division
approved modifications there of. Such operation shall include but is not limited to the
implementation of the following conditions and requirements:
Sewer Use Ordinance (SUO)
The permittee shall maintain adequate legal authority to implement its approved
pretreatment program;
2. Industrial Waste Survey (IWS)
The permittee shall update its Industrial Waste Survey (1WS) of all users of the sewer
collection system at least once every five years;
3. Monitoring Plan
The permittee shall implement a Division approved Monitoring Plan for the collection of
facility specific data to be used in a wastewater treatment plant Headworks Analysis
(HWA) for the development of specific pretreatment local limits;
4. Headworks Analysis (HWA) and Local Limits
The permittee shall obtain Division approval of a Headworks Analysis (HWA) at least
once every five years, and as required by the Division. The permittee shall develop, in
accordance with 15A NCAC 2H .0900, specific Local Limits to implement the
prohibitions listed in 15A NCAC 2H .0909;
5. Industrial User Pretreatment Permits (IUP) & Allocation Tables
In accordance with NCGS 143-215.1, the permittee shall issue to all significant industrial
users, permits for operation of pretreatment equipment and discharge to the permittee's
treatment works. These permits shall contain limitations, sampling protocols, reporting
requirements, appropriate standard and special conditions, and compliance schedules as
necessary for the installation of treatment and control technologies to assure that their
wastewater discharge will meet all applicable pretreatment standards and requirements.
The permittee shall maintain a current Allocation Table (AT) which summarizes the
results of the Headworks Analysis (HWA) and the limits from all Industrial User
Pretreatment Permits (IUP). Permitted IUP loadings for each parameter cannot exceed
the treatment capacity of the POTW as determined by the HWA;
4

6. Authorization to Construct (A to C)
The permittee shall ensure that an Authorization to Construct (A to C) is issued to all
applicable industrial users for the construction or modification of any pretreatment
facility. Prior to the issuance of an Authorization to Construct (A to C), the proposed
pretreatment facility and treatment process must be evaluated for its capacity to comply
with all Industrial User Pretreatment Permit (IUP) limitations;
7. POTW Inspection & Monitoring of their SNs
The permittee shall conduct inspection, surveillance, and monitoring activities as
described in its Division approved pretreatment program in order to determine,
independent of information supplied by industrial users, compliance with applicable
pretreatment standards. The permittee must:
a. Inspect all Significant Industrial Users (SIUs) at least once per calendar year; and
b. Sample all Significant Industrial Users (SNs) at least twice per calendar year for all
permit -limited pollutants, once during the period from January 1 through June 30 and
once during the period from July 1 through December 31, except for organic
compounds which shall be sampled once per calendar year;
8. SIU Self Monitoring and Reporting
The permittee shall require all industrial users to comply with the applicable monitoring
and reporting requirements outlined in the Division approved pretreatment program, the
industry's pretreatment permit, or in 15A NCAC 2H .0908;
9. Enforcement Response Plan (ERP)
The permittee shall enforce and obtain appropriate remedies for violations of all
pretreatment standards promulgated pursuant to section 307(b) and (c) of the Clean Water
Act (40 CFR 405 et.seq.), prohibitive discharge standards as set forth in 15A NCAC 2H
.0909, and specific local limitations. All enforcement actions shall be consistent with the
Enforcement Response Plan (ERP) approved by the Division;
10. Pretreatment Annual Reports (PAR)
The permittee shall report to the Division in accordance with 15A NCAC 2H .0908. In
lieu of submitting annual reports, Modified Pretreatment Programs developed under 15A
NCAC 2H .0904 (b) may be required to meet with Division personnel periodically to
discuss enforcement of pretreatment requirements and other pretreatment implementation
issues.
For all other active pretreatment programs, the permittee shall submit to the Division at
the following address:
NC Division of Environmental Management
Pretreatment Group
Post Office Box 29535
Raleigh, North Carolina 27626-0535
Two copies of a Pretreatment Annual Report (PAR) describing its pretreatment activities
over the previous twelve months.

These reports shall be submitted according to a schedule established by the Director and
shall contain the following:
a. Narrative
A brief discussion of reasons for, status of, and actions taken for all Significant
Industrial Users (SIUs) in Significant Non -Compliance (SNC);
b. Pp==enJ Pro grarn S11mm=P
A pretreatment program summary (PPS) on specific forms approved by the Division;
c. Significant Non -Compliance Report (SNCR)
The nature of the violations and the actions taken or proposed to correct the violations
on specific forms approved by the Division;
d. Industrial Data Summary Forms (IDSF)
Monitoring data from samples collected by both the POTW and the Significant
Industrial User (SIU). These analytical results must be reported on Industrial Data
Summary Forms (IDSF) or other specific format approved by the Division;
e. Other Information
Copies of the POTW's allocation table, new or modified enforcement compliance
schedules, public notice of SIUs in SNC, and any other information, upon request,
which in the opinion of the Director is needed to determine compliance with the
pretreatment implementation requirements of this permit;
11. Public Notice
The permittee shall publish annually a list of Significant Industrial Users (SIUs) that were
in Significant Non -Compliance (SNC) as defined in the permittee's Division approved
Sewer Use Ordinance with applicable pretreatment requirements and standards during the
previous twelve month period. This list shall be published within two months of the
applicable twelve month period;
12. Record Keeping
The permittee shall retain for a minimum of three years records of monitoring activities
and results, along with support information including general records, water quality
records, and records of industrial impact on the POTW;
13. Funding and Financial Report
The permittee small maintain adequate funding and staffing levels to accomplish the
objectives of its approved pretreatment program;
14. Modification to Pretreatment Programs
Modifications to the approved pretreatment program including but not limited to local
limits modifications, POTW monitoring of their Significant Industrial Users (SIUs), and
Monitoring Plan modifications, shall be considered a permit modification and shall be
governed by 15 NCAC 2H .0200 and 15A NCAC 2H .0907.
IV. MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring (including groundwater, surface water, soil or plant tissue analyses)
deemed necessary by the Division of Environmental Management to insure surface and
ground water protection will be established and an acceptable sampling reporting schedule
shall be followed.
R

2. Adequate records shall be maintained by the Permittee tracking the amount of wastewater
disposed. These records shall include, but are not necessarily limited to, the following
information:
a. date of irrigation,
b . volume of wastewater irrigated,
c. field irrigated,
d . length of time field is irrigated,
e. continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each
field,
f. weather conditions, and
g . maintenance of cover crops.
3. The effluent from the subject facilities shall be monitored by the Permittee at the point prior
to irrigation every March, July, and November for the following parameters:
BODS Sodium
TS S Magnesium
Fecal Coliform Calcium
pH NH3 as N
Sodium Adsorption Ratio by Calculation
4. Three (3) copies of all operation and disposal records (as specified in condition 1112) on
Form NDAR-1 shall be submitted on or before the last day of the following month. Three
(3) copies of all effluent monitoring data (as specified in condition 1113) on Form NDMR-1
shall be submitted every April, August, and December. All information shall be submitted
to the following address:
NC Division of Environmental. Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
5. Noncompliance Notification:
The Permittee shall report by telephone to the Washington 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 renders 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; or

d. Any time that self -monitoring information indicates that the facility has gone out of
compliance with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within 15 days following first knowledge of the occurrence. This report must outline
the actions taken or proposed to be taken to ensure that the problem does not recur.
V . GROUNDWATER REQUIREMENTS
1. Monitor wells #1, #2, #3, #4, #6, #7 shall be sampled every March, July, and November
for the following parameters:
Nitrate Ammonia Nitrogen
TDS TOC
pH Water Level
Chlorides Fecal Coliforms
Volatile Organic Compounds - In November only (by Method 1 or 2 below)
Method 1: Method 6230D (Capillary - Column), Standard Methods For The
Examination of Water and Wastewater", 17th ed., 1989
Method 2: Method 502.2 "Methods For The Determination Of Organic Compounds
In Drinking Water", U.S. EPA-600/4-88/039
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.
If TOC concentrations greater than 10 mg/l are detected in any downgradient monitoring
well, additional sampling and analysis must be conducted to identify the individual
constituents comprising this TOC concentration. If the TOC concentration as measured in
the background monitor well exceeds 10 mg/l, this concentration will be taken to represent
the naturally occurring TOC concentration. Any exceedances of this naturally occurring
TOC concentration in the downgradient wells shall be subject to the additional sampling
and analysis as described above.
If any volatile organic compounds are detected by Method 6230D, or the equivalent Method
502.2, then the Washington Regional Office Groundwater Supervisor, telephone number
[phone], must be contacted immediately for further instructions regarding any
additional follow-up analyses required. The results of all initial and follow-up analyses
must be submitted simultaneously.
The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on Form GW-59
[Compliance Monitoring Report Form] every April, August, and December.
2. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
8

3. The COMPLIANCEAR for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary
for the disposal system constructed prior to December 31, 1983 is established at either (1)
500 feet from the waste disposal area, or (2) at the property boundary, whichever is closest
to the waste disposal area. An exceedance of Groundwater Quality Standards at or beyond
the Compliance Boundary is subject to immediate remediation action in addition to the
penalty provisions applicable under General Statute 143-215.6A(a)(1).
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the
disposal systems midway between the Compliance Boundary and the perimeter of the
waste disposal area. Any exceedance of standards at the Review Boundary shall require
remediation action on the part of the permittee.
VI. 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 Environmental Management or other permitting authority.
3. Any duly authorized officer, employee, or representative of the Division of Environmental
Management may, upon presentation of credentials, enter and inspect any property,
premises or place on or related to the disposal site or facility 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.
V II. GENERAL CONDITIONS
This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and 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 Environmental Management 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 this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.6(a) to 143-215.6(c).
5. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.

6. A set of approved plans and specifications for the subject project must be retained by the
Perrnittee 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 15A NCAC 2H .0205
(c)(4)•
8. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted, will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
Permit issued this the twenty-second day of January, 1996
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
OCZ4"� & C LW
A. Presto oward, Jr., P. ., Director
Division of -Environmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0004332
10