WQ0003418_Final Permit_20000324

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
March 24, 2000
MR. SCOTT D. MOLLENKOPF, VICE PRESIDENT & CFO
TRIANGLE BRICK COMPANY
6523 NC HIGHWAY 55
DURHAM, NC 27713
Dear Mr. Mollenkopf:
A IT 0 0
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURGEs
Subject: Permit No. WQ0003418
Triangle Brick Company
Durham PIant, Clay Mine
Mine Dewatering
Wastewater Spray Irrigation
Durham County
In accordance with your renewal application received November 8, 1999, we are forwarding herewith
Permit No. WQ0003418, dated March 24, 2000, to Triangle Brick Company for the continued operation of the
subject wastewater treatment and spray irrigation facilities.
This permit shall be effective from the date of issuance until February 28, 2005, shall void Permit No_
WQ0003418 issued May 1, 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 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 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_
If you need additional information concerning this matter, please contact Kristin Miguez at (919) 733-
5083 extension 524.
Since
Kerr T. Stevens
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

cc: Durham County Health Department
Raleigh Regional Office, Water Quality Section
Raleigh Regional Office, Groundwater Section
Bob Cheek, Groundwater Section, Central Office
Technical Assistance and Certification Unit
Non -Discharge Compliance/Eriforcement Unit

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT 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
Triangle Brick Company
Durham County
FOR THE
continued operation of a 16,500 GPD spray irrigation treatment and disposal facility, for disposal of accumulated
surface run-off water from the bottom of the open clay pit mine, consisting of supply pumps, a two (2) acre settling
pond, 200 GPM irrigation pumps, dual spray irrigation fields totaling 34,000 square feet with sprinkler heads, and
associated piping, valves, and appurtenances to serve Triangle Brick Company's Durham Clay Mine, with no
discharge of wastes to the surface waters, pursuant to the application received November $, 1999, 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, 2005, shall void Permit No.
WQ0003419 issued May 1, 1995, and shall be subject to the following specified conditions and limitations:
I. PERFORMANCE STANDARDS
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 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.
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 Division.
4. 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 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 Water Pollution Control System Operators Certification
Commission (WPCSOCC), 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 certificat
of the type and grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the WPCSOCC. The Permittee must also employ a certified back-up operator of the
appropriate type and grade to comply with the conditions of 15A NCAC 8A .0202. The ORC of the
facility must visit each Class I facility at least weekly and each Class II, M, 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 15A NCAC SA .0202.
A suitable year round vegetative cover over the spray fields and other appropriate facilities shall be
maintained.
4. Irrigation shall not be performed during inclement weather or when the ground is in a condition that will
cause runoff.
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. No type of wastewater other than that from Triangle Brick Company's Clay Pit shall be sprayed onto the
irrigation area.
No traffic or equipment shall be allowed on the disposal area except while installation occurs or while
normal maintenance is being performed.
Public access to the land application sites shall be controlled during active site use. Such controls ma;
include the posting of signs showing the activities being conducted at each site.
10. Freeboard in the holding pond shall not be less than two feet at any time.
2

11. Spray irrigation shall not exceed the maximum hydraulic loading for the soils in the spray irrigation area.
The permittee shall determine the hydraulic loading for the soils in the spray irrigation area and operate the
spray irrigation system so as not to allow any run-off from the spray fields.
111. MONITORING AND REPORTING REQUIREMENTS
1. 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. 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. Iength 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. Three (3) copies of all operation and disposal records (as specified in condition III 2) on Form NDAR-1
shall be submitted on or before the last day of the following month_ All information shall be submitted to
the following address:
NC Division of Water Quality
Water Quality Section
Non -Discharge Compliance/Enforcement Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
4. Noncompliance Notification:
The Permittee shall report by telephone to the Raleigh 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.

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
1. 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 insure proper
operation of the subject facilities.
2. The Perixiittee 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.
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 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
1_ 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 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 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 thr
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 th wenty-fourth day of March, 2000
NORTH OLINA E NTAL MANAGEMENT COMMISSION
- Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0003418
5

WATER POLLUTION CONTROL SYSTEM OPERATORS
CERTIFICATION COMMISSION
CLASSIFICATION
RATING SHEET FOR WATER POLLUTION CONTROL SYSTEMS
FACILITY INFORMATION:
NAME OF FACILITY:
MAILING ADDRESS:
COUNTY:
CONTACT PERSON: TELEPHONE: 6a
PERMIT NO: � )Q / D0 3 V/J�/ Check One: NC WQ --" HEALTH DP,
C4]301
TELEPHONE: {__}
RATING INFORMATION: (Before completing this section, please refer to pages 2-4)
PERMITTED FLOW: /�. 5 �`� �M D
CHECK CLASSIFICATION: WASTEWATER: I
141910=6�6Ra l
SPRAY IRRIGATION i,,-' SUBSURFACE
BNR? YES NO
2 3 4
2 3 4
LAND APPLICATION
PHYSICAL/CHENUCAL GRADE I GRADE H
jff - RATED BY: REGION: DATE: 3 Z d
REGIONAL OFFICE TELEPHONE NUMBER: 411 cr) ,-521- 00 6 EXT:

Classification of Biological Water Pollution Control Treatment Systems:
Grade I Biological WPCS
- Septic tank/sand filter systems 10
- Biological lagoon systems
- Constructed wetlands and associated appurtenances
Grade II Biological WPCS
- Systems that utilize an activated sludge or fixed growth process with a permitted flow
less than or equal to 0.5 million gallons per day (mgd)
Grade III Biological WPCS
- Systems that utilize an activated sludge or fixed growth process with a permitted flow
of greater than 0.5 through 2.5 million gallons per day (mgd)
- Grade II systems that are required to achieve biological nutrient reduction *
Grade IV Biological WPCS
- Systems that utilizing an activated sludge or fixed growth process with a permitted flow
of greater than 2.5 million gallons per day (mgd)
- Grade III systems that are required to achieve biological nutrient reduction *
* Biological Nutrient Reduction -
The reduction of total nitrogen or total phosphorous by an activated sludge or fixed growth
process as required by the facilities permit.
Classification of Collection Water Pollution Control Systems:
(whichever provides lowest grade)
Same grade as biological water pollution control system, Grade of system:
Based on population served:
1,500 or Less = Grade I
1,501 to 15,000 = Grade II
15,001 to 50,000 = Grade III
50,001 or more = Grade IV

Classification of Spray Irrigation Water Pollution Control Systems:
-Z Systems which utilize spray irrigation for the reuse or disposal of wasterwater.
These systems include: septic tanks, sand filter, oil/water separators, Iagoona,-
storage basins, screening, sedimentation. Systems other than those listed above
shall be subject to additional classification.
Classification of Land Application of Residuals Systems:
Systems permitted and dedicated for land application of residuals that are produced by a
water pollution control system or contaminated soils.
Classification of Phvsical/Chemical Water Pollution Control Treatment Systems:
Grade I Physical/Chemical: Any water pollution control system that utilizes a primarily
physical process to treat wastewater. This classification includes groundwater
remediation systems. **
Grade II Physical/Chemical: Any water pollution control system that utilizes a primarily
chemical process to treat wastewater. This classification includes reverse osmosis,
electrodialysis, and ultrafzltration systems. **
** Any water pollution control system that utilizes a phyicaVchemical process to enhance an
activated sludge or fixed growth process, shall not be subject to additional classification.
Classification of Subsurface Water Pollution Control Systems:
Systems which utilize the soil for subsurface treatment and disposal of wastewater
and/or are required to have a certified operator under 15A NCAC 18A.1961. ***
*** Any subsurface system that has as part of its treatment process a water pollution control
systems that may be classified under Rules .0302 through .0307 of this section shall be
subject to addional classification.

Definitions
Activated Sludge - shall mean a biological wastewater treatment process in which predominantly
biodegradable polluntants in wastewater are absorbed, or adsorbed by living aerobicbrganisms and
bacteria.
Chemical Process - shall mean a wastewater pollution control system process consisting
exclusively of the addition of chemicals to treat wastewater.
Collection System - shall mean a continuous connections of pipelines, conduits, pumping
stations, and other related constructions used to conduct wastewater to the water pollution
control system.
Electrodialysis System - shall mean a system utlizing a selective separation of dissolved solids
process that is based on electrical charge and diffusion through a semipermeable membrane.
Physical Process - shall mean any water pollution control system process consisting of
electrodialysis, adsorption, absorption, air stripping, gravi.metric sedimentation, floation, and
filtration as a means of treatment.
Reverse Osmosis System - shall mean a system which utilizes solutions and semipermable
membranes to separate and treat wastewater.
Ultrafiltration System - shall mean a system which utilizes a membrane filter to remove
pollutants from wastewater.
Water Pollution Control System - shall mean any system for the collection, treatment, or
disposal of wastewater and is classified under the provision of G.S. 90A-37.
Note: Please refer to G.S. 90A-37 for additional information and definitions.

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