WQ0000347_Final Permit_19930729

State of North Carolina
Department of Environment,
Health and Natural Resources 4 J70LVA
Division of Environmental Management
James B. Hunt, Governor C
Jonathan B. Howes, Secretary G
A. Preston Howard, Jr., P.E., Director
July 29, 1993
W. Clay Hammer, General Partner
Research Properties Associates .
2200 West Main Street, Suite 900
Durham, North Carolina 27705
Dear Mr. Hammer:
Subject: Permit No. WQ0000347
Research Properties Associates
Treyburn Development
Wastewater Spray Irrigation
Durham County
In accordance with your application received May 3, 1993, we are forwarding herewith Permit No.
WQ0000347, dated July 29, 1993, to Research Properties Associates for the construction and operation of
the subject wastewater spray irrigation facilities.
This permit shall be effective from the date of issuance until June 30, 1998, shall void Permit No.
WQ0000347 issued June 29, 1989 and modified February 10, 1992 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 parts, requirements, or limitations contained in this permit are unacceptable to you, 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 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 need additional information concerning this matter, please contac-fWf �]Vl hael D. Allen at
[phone].
Sincerely,
A. Pres Howard, Jr., P.E.
Director
cc: Durham County Health Department
Raleigh Regional Office, Water Quality
Raleigh Regional Office, Groundwater
Groundwater Section, Jack Floyd
Training and Certification Unit
Facilities Assessment Unit
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
Research Properties Associates
Durham County
FOR THE
construction and operation of a 400,000 GPD spray irrigation wastewater treatment and disposal system to
be built in two phases: Phase I for 250,000 GPD and Phase II for 150,000 GPD. The facilities will
consists of a 700 GPM pump station with dual pumps, stand-by power, high water alarms and
approximately 6,000 linear feet of 10 -inch force main, a 400,000 GPD Davco contact stabilization
wastewater treatment plant consisting of a barscreen, a 50,030 gallon contact tank, a 100,162 gallon
reaeration tank, a 68,874 gallon clarifier, a 89,850 gallon aerated sludge digestion tank, a gaseous chlorine
injector and a 11,193 gallon chlorine contact tank, two (2) storage ponds with a total volume of
approximately 90 acre-feet and a 1,320 GPM pump station with dual horizontal split case pumps for
irrigation to serve Treyburn Development with no discharge of wastes to the surface waters, pursuant to
the application received May 3, 1993, 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 June 30, 1998, shall void Permit No.
WQ0000347 issued June 29, 1989 and modified February 10, 1992 and shall be subject to the following
specified conditions and limitations:
I, PERFORMANCE STANDARDS
1. Upon completion of construction and prior to operation of this permitted, facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box
29535, Raleigh, NC 27626-0535.
2. The Raleigh Regional Office, phone no. [phone] shall be notified at least forty-
eight (48) hours in advance of operation of the installed facilities so that an in-place
inspection can be made. Such notification to the regional supervisor shall be made during
the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday,
excluding State Holidays_

3. The spray irrigation facilities shall be effectively maintained and operated at all tunes 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 absorb the wastewater, the Permittee shall take such immediate
corrective action to correct the problern, including actions as may be required by the
Division of Environmental Management.
4. The issuance of this pen -nit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
5. The sludge generated from these treatment facilities must be disposed of in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Environmental Management.
6. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
7. 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,
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 Il, II1, 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. Once
the facility is classified, the Permittee must submit a letter to the Certification Commission
which designates the operator in responsible charge within thirty days after the wastewater
treatment facilities are 50% complete.
2

3 . A suitable 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 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 average application rate shall not exceed 0.81 inches per week.
8. No type of wastewater other than that from Treyburn Development 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 storage ponds shall not be less than two (2) feet at any time.
III. MQNITORIN_G 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.
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.
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 TSS
Fecal Coliforms pH
NH3 as N Sodium
3

4. Three copies of all operation and disposal records (as specified in condition 113 2) and all
effluent monitoring data (as specified in condition 1Il 3) and any other data as may be
required shall be submitted on or before the last day of the following month 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 Raleigh Regional Office, telephone no. (919)
571-4700 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, corepressors, 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.
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.
IV. QROUNDWATER REQUIREMENTS
Prior to beginning waste disposal operations, six (6) monitor wells, one (1) upgradient and
one (1) downgradient of the lagoons, and four (4) at the spray irrigation fields shall be
installed to monitor groundwater quality. The wells shall be constructed such that the water
level in the well is never above or below the screened (open) portion of the well at any time
during the year. The exact location and construction details for these wells shall be
approved by the Raleigh Regional Office and shall be constructed in accordance with the
conditions of this permit.
C!

2. The six (6) monitor wells must be sampled initially after construction and thereafter every
March, July and November for the following parameters:
NO3
TOC
Ammonia Nitrogen
Water Level
Total Suspended Solids
Volatile Organic Compounds -
TDS
pH
Chloride
Fecal Coliforms
In November only (by Method 1 or Method 2 below)
Method 1: Method 6230D (Capillary - Column), "Standard Methods for the
Examination of Water and Wastewater", 17th edition, 1989
Method 2: Method 502.2 "Methods for the Determination of Organic Compounds in
Drinking Water", United States Environmental Protection Agency - 600/4-
88/039
The measurement of water level must be made prior to sampling for the remaining
parameters. The depth of 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 relative elevations of the measuring point for each monitor 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 backzround 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 EPA methods 604 and 611 must also be run to detect other organic compounds
which may be present. The results of all analysis specified in the monitoring requirements,
including 604 and 611 if required, must be submitted simultaneously.
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management Post Office Box 29535 Raleigh, N.C. 27626-0535 on Form
GW -59 (Compliance Monitoring Report Form) every April, August and December.
3. The Compliance BoundaU for the disposal system is specified by regulations in 15 NCAC
2L, Groundwater Classifications and Standards. The Compliance Boundary is established
at either (1) 250 feet from the waste disposal area, or (2) 50 feet within the property
boundary, whichever is closet to the waste disposal area. An exceedance of Groundwater
Quality Standards at or beyond the Compliance Boundary is subject to immediate
remediation action on addition to the penalty provisions applicable under General Statute
143-215.6A(a)(1).
Also in accordance with 15A NCAC 2L, a REVIEW BOUNDARY, delineated on the
attached site map, 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
permi ttee.

4. The lagoon shall have a liner of natural material at least one foot in thickness, compacted to
95% proctor standard dry density and installed and compacted in layers no thicker than six
inches, with a hydraulic conductivity of no greater than 1 x 10-7 centimeters per second.
Following installation and inspection of the lagoon liner, and prior to waste disposal
operations, verification of the liner's compliance with hydraulic conductivity and thickness
specifications must be provided to the Division of Environmental Management,
Groundwater Section, by the project engineer.
5. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
6. All wells that are constructed for purposes of groundwater monitoring shall be constructed
in accordance with 15A NCAC 2C .0108 (Standards of Construction for Wells Other than
Water Supply) and any other state and local laws and regulations pertaining to well
construction.
7. The Raleigh Regional Office, telephone number [phone] shall be notified at least
forty-eight hours prior to the construction of any monitoring well so that an inspection can
be made of the monitoring well location. Such notification to the regional groundwater
supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on
Monday through Friday, excluding state holidays.
8. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two
original copies of a scaled topographic map (scale no greater than 1:100) signed and sealed
by a professional engineer or a state licensed land surveyor that indicates all of the
following information:
a. the location and identity of each monitoring well,
b. the location of the waste disposal system,
c. the location of all property boundaries,
d. the latitude and longitude of each monitoring well,
e. the relative elevation of the top of the well casing (which shall be known as the
"measuring point"),
f. and the depth of water below the measuring point at the time the measuring point is
established.
All monitoring well locations and elevations shall be surveyed by a state licensed land
survey
9. Upon completion of all well construction activities, a certification must be received from a
professional engineer certifying that the monitoring wells are located and constructed in
accordance with the Well Construction Standards (15A NCAC 2C) and this permit. This
certification should be submitted with copies of the Well Completion Form (GW -1) for
each well. Mail this certification and the associated GW -1 forms to the Permits and
Compliance Unit, Groundwater Section, P.O, Box 29535, Raleigh, N.C. 27626-0535,
10. For the initial sampling of the well as specified elsewhere in the permit, the permittee shall
submit a copy of the GW- I form with the Compliance Monitoring Form (GW -59) for that
well. Compliance Monitoring Forms that do not include copies of the GW -1 form will he
returned to the permittee without being processed. Failure to submit these forms as
required by this permit may result in the initiation of enforcement activities pursuant to NC
General Statutes 143-215.6.
11. Within sixty (60) days following construction of the wastewater treatment and disposal
facilities, the permittee shall submit a site specific map (scale less than one inch equals 100
feet) that indicates all wells.
501

V. INSPECTIONS
1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities
to prevent malfunctions and deterioration, operator errors and discharges which may cause
or lead to the release of wastes to the environment, a threat to human health, or a nuisance.
The Permittee shall keep an inspection log or summary including at least the date and time
of inspection, observations made, and any maintenance, repairs, or corrective actions
taken by the Permittee. This log of inspections shall be maintained by the Permittee for a
period of three years from the date of the inspection and shall be made available upon
request to the Division of 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 and facility at any reasonable time for the
purpose of determining compliance with this permit; may inspect or copy any records that
must be kept under the terms and conditions of this permit; or may obtain samples of
groundwater, surface water, or leachate.
VI. CIENERAL CONDITIONS
1. This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans, specifications, and other supporting data.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
3. This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee, a formal permit request must be
submitted to the Division of 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 143-215.6A to 143-215.6C.
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
Permittee for the life of the project.
7. The annual administering and compliance fee must be paid by the Permittee within thirty
days after being billed by the Division. Failure to pay the fee accordingly may cause the
Division to initiate action to revoke this permit as specified by 15 NCAC 2H .4205 (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
7

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 29th day of July, 1993
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Presto oward, Jr., .E., Director
Division o nvironmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0000347

Permit No. WQ0000347
July 29, 1993
En_Sineer's Certification
1, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project,
Project Name
Location
for the
Pernlittee 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 the approved plans and specifications.
Signature
Date
9
Registration No.

UNITED STATES C� 3 S
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
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State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James B. Hunt, Jr., Governor A. Preston Howard, Jr., P.E.
Jonathan B. Howes, Secretary Director
MEMORANDUM
To: Training and Certification
From: Michael D. Allen, State Engineering Review Group
Subject: Rating Sheet for Permit Number "OCd034-7
Date: -7-21-9-3
The subject permit is a renewal of Permit No. V)(� OOCO-,'4 T7 , issued
therefore, a new rating sheet is not required. The existing rating is unchanged.
Regional Offices
Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem
704/251-6208 919/486-1541 704/663-1699 91915714700 919/946-6481 9191395-3900 919/896-7007
Pollution Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer