WQ0003090_Final Permit_20050504

Michael F. Easley, Governor
William G. Ross Tr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
May 4, 2005
David L. Oles, Town Manager
Town of Liberty
P.O. Box 1006
Liberty, NC 27298
Subject: Permit No. WQ0003090
Town of Liberty
Wastewater Spray Irrigation Facility
Randolph County
Dear Mr. Oles:
In accordance with your request for renewal received December 14, 2004, we are forwarding herewith
Permit No, WQ0003090, dated May 4, 2005, to Town of Liberty for the continued operation of the subject
wastewater treatment and surface irrigation facilities.
This permit shall be effective from the date of issuance until April 30, 2010, shall void Permit No.
WQ0003090 issued July 31, 2000, and shall be subject to the conditions and limitations as specified therein.
Please pay particular attention to the new conditions and monitoring requirements in this permit. The new
conditions include leveling or filling in several berm -like features observed in Field Number 6 (Condition I.1), an
evaluation of accumulated solids in the lagoon (dridition I.2), adding monitoring well MW-7 to the groundwater
duality monitoring program (Conditions IV.I.a&b), and the submission of a site detail map showing the location
of monitoring wells and "wet" areas that have been recently excluded from application (Condition VI.1). 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 thirty (30) days following receipt of this permit. This
request must be in the forth of a written petition, conforming to Chapter I50B 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.
6162.
If you need additional information concerning this matter, please
David Goodrich at (919) 715-
Sincer
,,,/—AIan W. Klimek, P.E.
cc: Randolph County Health Department
Winston-Salem Regional Office, Aquifer Protection Section
Technical Assistance and Certification Unit
Aquifer Protection Central Files AAhCaro " a
X=it Files atumll
Aquifer Protection Section 1636 Mail Service Center Raleigh, NC 27699-1636 Phone [phone] Customer Service
Internet: h2o.enr.sta€e.nc.us 2728 Capital Boulevard Raleigh, NC 27604 FAX [phone]
An Equal Opportunity/Affirmative, Action Employer— 50% Recycled110% Post Consumes Paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
SURFACE 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 Liberty
Randolph County
FOR THE
continued operation of a 0.55 MGD surface irrigation treatment and disposal facility consisting of a bar screen, a
parshall flume, and influent Iift station with three (3) 815 gpm pumps, approximately 1,000 linear feet of 10-inch
force main, a 15-acre stabilization and storage lagoon with 88 days of storage at the design flow, chlorination
facilities, dual 1,830 gpm vertical diffusion vane irrigation pumps with approximately 3,460 linear feet of 8-inch
force main, a solid set irrigation system with a wetted area of approximately 158 acres, and all associated piping,
valves and appurtenances to serve the Town of Liberty, with no discharge of wastes to the surface waters,
pursuant to the renewal request received December 14, 2004, and subsequent additional information received by
the Division, 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 April 30, 2010, shall void Permit No.
WQ0003090 issued July 31, 2000, and shall be subject to the following specified conditions and limitations.
I. PERFORMANCE STANDARDS
Within one hundred and twenty (120) days of permit issuance, the berm -like features that exist in
Spray Field Number 6 shall be leveled or filled in to facilitate maintenance of the field.
2. Within one hundred and eighty (180) days of permit issuance, the 15-acre stabilization and storage
lagoon shall be evaluated from the standpoint of the volume of solids that have accumulated in it over
its lifetime, and the extent to which the solids have compromised the liquid storage capacity of the
lagoon. The evaluation is to be performed by a professional engineer. If the condition of the lagoon is
found to warrant corrective action to maintain or improve the performance of the facility, the report
shall include a description of a recommended course of action and a proposed timetable for these
activities. A written report of the evaluation and ensuing recommendations shall be prepared and
sealed by the engineer and submitted to the Aquifer Protection Section at 585 Waughtown Street,
Winston-Salem, NC 27107.

r ..
The surface 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 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.
4. 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.
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 Division.
6. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited.
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 drainage ways or surface water bodies,
e) 50 feet between wetted area and public right of ways,
f) 100 feet between treatment/storage units and any wells, and
g) 50 feet between 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 that 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 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.
H. OPERATION AND MAINTENANCE_ REQMEMENTS
The facilities shall be properly maintained and operated at all times.
2. Upon classification of the wastewater treatment and irrigation 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, . A suitable year round vegetative cover 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 irrigation 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 52.0 inches over any twelve (12) month
period at an instantaneous application rate not to exceed 0.21 inches per hour.
No type of wastewater other than that from the Town of Liberty shall be irrigated 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. PubIic 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 15-acre lagoon shall not be less than one and a half (1.5) feet at any time.
12. If not already installed, a waste -level gauge, to monitor waste levels in the 15-acre lagoon, shall be
installed within 60 days of issuance of this permit. This gauge shall have readily visible permanent
markings indicating the maximum liquid level at the top of the temporary liquid storage volume,
minimum liquid level at the bottom of the temporary liquid storage volume, and top of the dam
elevations. Caution must be taken not to damage the integrity of the Iiner when installing the gauge.
13. A protective vegetative cover shall be maintained on all earthen basin embankments (outside toe of
embankment to maximum pumping elevation), berms, pipe runs, erosion control areas, and surface
water diversions. Trees, shrubs, and other woody vegetation shall not be allowed to grow on the
earthen basin dikes or embankments. Earthen basin embankment areas shall be kept mowed or
otherwise controlled and accessible.
III. MONITORING AND REPORTING REQUIREMENTS
Any monitoring (including groundwater, surface water, soil or plant tissue analyses) deemed
necessary by the Division to insure surface and ground water protection will be established and an
acceptable sampling reporting schedule shall be followed.
2. Influent flow shall be continuously monitored and daily flow values shall be reported on Form
NDMR.
If not already installed, the Permittee shall install an appropriate flow measurement device consistent
with approved engineering and scientific practices to ensure the 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 measurements is consistent with the
accepted capability of that type of device. Records of flow measurement device calibration shall be
kept on file by the Permittee for a period of at least three years. At a minunum, 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

If not already installed, plans and specifications for the flow measuring device shall be prepared by a
licensed Professional Engineer and submitted to the appropriate regional office 30 days prior to
installation. The flow measuring device shall be installed within 1. year of the date of this permit.
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:
BOD5�- TSS--
Fecal Coliforrr�.,- PIS—
NH3 as N, NO2-NO3
TKN Total Phosphorous
4. 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,
a 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.
Freeboard in the 15-acre lagoon shall be recorded weekly.
6. Three (3) copies of all monitoring data (as specified in condition 1112 and III 3) on Form NDMR-1
and three (3) copies of all operation and disposal records (as specified in condition 1114, and 1115) on
Form NDAR-1 shall be submitted monthly on or before the last day of the following month. All
information shall be submitted to the following address:
NCDENR-DWQ
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
7. A representative annual soils analysis (Standard Soil Fertility Analysis) shall be conducted on each
irrigation field and the results maintained on file by the Permittee for a minimum of five years. The
Standard Soil Fertility Analysis shall include, but is not necessarily limited to, the following
parameters:
Acidity Manganese Potassium
Calcium Percent Humic Matter Sodium
Copper pH Zinc
Magnesium Exchangeable Sodium Percentage Phosphorus
Cation Exchange Capacity Base Saturation (by calculation)
8. Noncompliance Notification,
The Permittee shall report by telephone to the Winston-Salem Regional Office, telephone number
[phone], as soon as possible, but in no case more than 24 hours or on the next working day
following the occurrence or first knowledge of the occurrence of any of the following:

a. Any occurrence at the wastewater treatment facility which results in'the treatment of significant
amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the
contents of a sludge digester; the known passage of a slug of hazardous substance through the
facility; or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of
adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators,
compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass directly to
receiving waters without treatment of all or any portion of the influent to such station or facility.
d. Any time that self -monitoring information indicates that the facility has gone out of compliance
with its permit limitations.
Occurrences outside normal business hours may also be reported to the Division's Emergency
Response personnel at telephone number [phone], [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
I. Sa mpline Reg uirements:
a. Monitoring well MW-7 shall be added to the groundwater monitoring program.
b. Existing groundwater monitoring wells MW-2, MW-4, MW-5, MW-6 and MW-7 shall be
sampled every March and November for the following parameters;
Water Level pH
Chloride Total Dissolved Solids (TDS)
Fecal Coliforms Total Organic Carbon (TOC)
Nitrate Nitrogen (NO;-N) Total Ammonia Nitrogen (NH3-N)
Sulphate
Volatile Organic Compounds — In November only.
Water levels in the groundwater monitoring wells shall be measured prior to sampling the
groundwater for the remaining parameters. The depth to water in each well shall be measured
from the surveyed point on the top of the casing, which shall be surveyed relative to a common
datum.
c. Volatile organic compounds (VOCs) shall be analyzed using one of the following methods:
Standard Method 6230D (PQL at 0.5 ug/L or less),
ii. Standard Method 6210 (PQL at 0.5 ug/L or less),
iii. EPA Method 8021 (Low Concentration, PQL at 0.5 ug/L or less),
iv. EPA Method 8260 (Low Concentration, PQL at 0.5 ug/L or less),

V. Another method with prior approval by the Division,
Any of the referenced methods used for VOCs shall, at a minimum, include all of the constituents
listed in Table V 1 of Standard Methods 6230D. The method used shall provide a PQL at 0.5
ug/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 ug/L, shall be qualified (i.e., estimated) and reported.
d. If total organic carbon (TOC) concentrations greater than 10 milligrams per liter are detected in
any downgradient groundwater monitoring well, additional sampling and analysis shall be
conducted to identify the individual constituents comprising theis TOC concentration. If the TOC
concentration as measured in the background well exceeds 10 MilIigrams per liter, this
concentration shall be taken to represent the naturally -occurring TOC concentration. Any
exceedances of this naturally -occurring TOC concentration in downgradient wells shall be
subject to the additional sampling and analysis as described in this permit.
c. Any laboratory selected to analyze parameters shall. be Division -certified for those parameters
required.
2. Reporting /Documentation Requirements:_
a. The results of the sampling and analysis shall be received on the most -recent version. of
"Groundwater Quality Monitoring; Compliance Report Form" (i.e. OW-59 Form) with copies of
the laboratory analyses attached by the Division's Information Processing Unit on or before the
last working day of the month following the sampling month.
b. All reports, maps, and other documents required in the "Groundwater Requirements" section of
this permit shall be mailed to the following address:
NCDENR-DWQ
Information Processing Unit
161.7 Mail Sevice Center
Raleigh, NC 27699-1617
Updated blank reporting and other forms may be downloaded from the web site for the Division's
Aquifer Protection Section at h :II w,ehnr.state.nc.us/ or requested from the address listed
above.
Applicable Boundary Requirements:
a. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A
NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary for the
disposal system individually permitted on or after December 30, 1983 is established at either 250
feet from the waste disposal area, or 50 feet within the property boundary, whichever is closer to
the waste disposal area. An exceedance of Groundwater Quality Standards at or beyond the
Compliance: Boundary is subject to remediation action according to 15A NCAC 2L .01.06(d)(2).
b. The REVIEW BOUNDARY is established around the disposal system midway between the
Compliance Boundary and the perimeter of the waste disposal area. Any exceedance of standards
at the Review Boundary shall require action in accordance with 15A NCAC 2L .0106(d)(1).
4. Other Re uirements:
a. The monitor wells shall have identification plates and locks securing the wells against
unauthorized access and use.

b. Any additional groundwater quality monitorhag, as deemed necessary by the Division, shall be
provided.
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 or other permitting authority.
3. Any duly authorized officer, employee, or representative of the Division my, 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.
VI. GENERAL CONDITIONS
Within sixty (60) days of permit issuance, two detail snaps of the site shall be prepared and submitted
to the Aquifer Protection Section at the addresses below. Each map shall shove all of the spray areas,
and shall clearly indicate the areas of Spray Fields Number 3, 6 and 8 that are no longer mowed or
used for spray application due to wetness conditions, and those areas of the fields which are still
receiving spray applications. Each map shall also indicate the locations and identities of the
monitoring wells that are currently being sampled (monitoring wells MW-2, MW-4, MW-5, MW-6,
and MW-7).
Aquifer Protection Section
Division of Water Quality
Winston-Salem Regional Office
585 Waughtown Street
Winston-Salem, NC 27107
NCDENR-DWQ
Information Processing Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
2. 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.
This permit is effective only with respect to the nature and volume of wastes described in the
application and other supporting data.

4. 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
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.
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 Statute 143-
215.6A to 143-215.6C.
The issuance of this permit does not exempt the Permittee from complying with any and all statutes,
rules, regulations, or ordinances which may be imposed by other government agencies (local, state,
and federal) which have jurisdiction, including but not limited to applicable river buffer rules in I5A
NCAC 213 .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.
7. A set of approved plans and specifications for the subject project must be retained by the Pennittee
for the life of the project.
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).
9. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its extension.
Upon receipt of the request, the Commission, will review the adequacy of the facilities described
therein, and if warranted, will extend the permit for such period of time and under such conditions
and limitations as it may deem appropriate.
Permit issued this the 40' day of May, 2005
NORTH OLINA E V�IRONMENTAL MANAGEMENT COMMISSION
-,,Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0003090

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