WQ0007304_Final Permit_19930903

State of North Carolina
,Department of Environment,
Health and Natural Resources
Division of Environmental Management
.lames B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
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D E H N R
September 3, 1993
Mr. Matt Gilmore
Crown Central Petroleum
Post Office Box 1168
Baltimore, MD 21203 Subject. Permit No. WQ0007304
Crown Central Petroleum
Crown Fast Fare NC-625
Groundwater Remediation
Dear Mr. Gilmore: Mecklenburg County
In accordance with your application received on November 30, 1992, we are forwarding herewith
Permit No. WQ0007304, dated September 3, 1993, to Crown Central Petroleum for the construction and
operation of the subject groundwater remediation facilities.
This permit shall be effective from the date of issuance until August 31, 1998, 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 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.
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this matter, please contact Mr. Randy Jones at 919/ 733-5083, extension 517.
Sincerely,
A. re Howard, Jr., P.E.
cc: Mecklenburg County Health Department
Mecklenburg Environmental Protection
Mooresville Regional Office, Water Quality Section
Mooresville Regional Office, Groundwater Section
Jack Floyd, Groundwater Section
Applied Environmental Services, Inc.
Facilities Assessment Unit
Training and Certification
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
INFILTRATION GALLERY 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
Crown Central Petroleum
Mecklenburg County
FOR THE
construction and operation of a 3600 GPD groundwater remediation facility which consists of a recovery
well, a 10 GPM diffused aeration stripping device, a particle filter, a dual stage activated carbon adsorption
system, an infiltration gallery which consists of four trenches approximately 3 feet by 3 feet by 45 feet,
and all other appurtenances to serve the Crown Fast Fare NC-625 with no discharge to the surface waters,
pursuant to the application received on November 30, 1992, 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 August 31, 1998, and shall be subject
to the following specified conditions and limitations:
I. PERF , RMANCE 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 and the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box
29535, Raleigh, NC 27626-0535.
2. The Mooresville Regional Office, telephone number 704/663-1699, 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. This permit shall become voidable if the soils fail to adequately absorb the wastes and may
be rescinded unless the facilities are installed, maintained, and operated in a manner which
will protect the assigned water quality standards of the surface waters and ground waters.

4. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as
may be required by this Division, such as the construction of additional or replacement
treatment or disposal facilities.
5. 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.
6. Any 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.
7. Diversion or bypassing of the untreated groundwater from the treatment facilities is
prohibited.
II. OPERATION AND MAINTENANCE REQUIREMENTS
l . 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 $A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, 111, 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.
3. 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.
III. MONITORING AND REPORTING REQUIREMENTS
Any monitoring 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. Noncompliance Notification:
The Permittee shall report by telephone to the Mooresville Regional Office, telephone
number 704/663-1699, 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 basin or tank; the known passage of a slug of
hazardous substance through the facility; or any other unusual circumstances.
2

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 is not in
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. GRQUNDWATER REQUIREMENTS
1. Water supply wells 1, 2, and 3 (see figure 6 in CSA) and monitoring wells CP-1, CP-2,
CP-3, CP-4, CP-5, CP-6, CP-7, CP-8, CP-9, and PW-1 shall be sampled every January,
April, July, and October for the following parameters:
Benzene* Isopropyl Ether*
Toluene* pH
Ethylbenzene* TDS
Xylenes* Water Level
MTBE*
*Shall be sampled by EPA Method 602
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 wells shall be surveyed to provide relative
elevations of the measuring point for each well.
2. The influent and effluent from the treatment system shall be sampled once every two (2)
weeks for the first three (3) months and monthly thereafter for the following parameters
using EPA Method 602: Benzene, Toluene, Xylenes, EthyIbenzene, MTBE
3. All water supply and monitoring well data shall be sent to the Groundwater Section, P. O.
Box 29535, Raleigh, N. C. 27626 on Form GW-59 every February, May, August, and
November.
4. All influent and effluent data shall be submitted quarterly along with the water supply and
monitoring well data.
5. The groundwater treatment system must achieve at Ieast a 95% treatment efficiency. If the
treatment efficiency falls consistently below 95% then additional treatment facilities may be
required..
6. The permittee shall use the BTEX and MTBE concentrations in the monitoring wells to
develop an isoconcentration contour map for these constituents. Water level contours shall
also be developed. These maps should be developed using the data collected in April and
October and should be submitted along with the other monitoring data for those months.
3

7. Any additional groundwater quality monitoring, as deemed necessary by the Division of
Environmental Management, shall be provided.
8. The Compliance Boundary for the disposal system is specified by regulations in 15A
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 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 143-215.6(1)a.
Also in accordance with 15A NCAC 2L, a 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
remediation action on the part of the permittee.
9. The groundwater recovery, treatment, and disposal system shall be inspected weekly. If it
is determined that the system is malfunctioning, all repairs should be made as soon as
possible and reported to the Mooresville Regional Office.
10. All components of the groundwater recovery, treatment and disposal system shall be
properly weather -proofed to prevent freezing and failure of the system.
11. All wells that are constructed for the purposes of groundwater monitoring shall be
constructed in accordance with 15A NCAC 2C .0108 (Standards of Construction for Wells
Other Than Water Supply) and other state and local laws and regulations pertaining to well
construction.
12. Within Sixty (60) days of permit issuance, the permittee shall submit two original copies of
a scaled topographic map (scale no greater than 1 inch = 100 feet), signed and sealed by a
North Carolina Professional Engineer or a North Carolina registered land surveyor, that
indicates all of the following information:
a. the location and identity of each monitor and recovery 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), and
f. the depth of water below the measuring point at the time the measuring point is
established.
13. For the initial sampling of the well, as specified elsewhere in this permit, the permittee shall
submit a copy of the GW-1 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 be
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
NCGS 143-215.6.
V . INSPECTIONS
1. Adequate inspection, maintenance and cleaning shall be provided by the Permittee to insure
proper operation of the subject facilities.
4

2. The Permittee or his designee shall inspect the groundwater recovery and treatment
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 Pemnittee 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 Perrruttee
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. GENERAL 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. The Permittee shall obtain a well construction permit from the Mooresville Regional Office
prior to construction of the recovery wells.
5. A set of approved documents for the subject project must be retained by the Permittee for
the life of this project.
6. 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.
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 15 NCAC 2H .0205
(c)(4).
8. 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.
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.
5

Permit issued this the 3rd day of September, 1993.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
C,i -
A. Preston/11oward, Jr., P.P., Director
Division o nvironmental Management
By Authority of the Environmental Management Commission
Permit No. WQ0007304
C1

Permit No. WQ0007304
September 3, 1993
Engineer'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
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of the approved plans and specifications.
Signature
Date
Registration No.

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CHARLOTTE, N.C.
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