WQ0009634_Final Permit_19990722

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
July 22, 1999
Mr. Joel C. Larkin, Manager
Operations Integrity Department
Exxon Pipeline Company
P. O. Box 2220
Houston, Texas 77252-2220
Dear Mr. Larkin:
4 0 •
NCDENR
NORTH CAROLSNA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Permit No. WQ0009634
Exxon Pipeline Company
Valve Station No. 109+45
Groundwater Remediation Facilities
Brunswick County
In accordance with your application received April 23, 1999, we are forwarding herewith Permit No.
WQ0009634, dated July 22, 1999, to Exxon Pipeline Company for the continued operation of the subject
groundwater remediation facility.
This permit shall be effective from the date of issuance until June 30, 2004, shall void Permit No.
WQ0009634 issued August 18, 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, P.O. Drawer 27447, Raleigh, NC
27611-7447. Unless such demands are made this permit shall be final and binding.
If you have any questions concerning the Groundwater Conditions or groundwater monitoring
requirements, please contact Bob Cheek in the Groundwater Section at [phone]. If you need any
additional information concerning this matter, please contact Danny Wicaand at [phone] extension
358. 7
cc: Brunswick County Health Department
Wilmington Regional Office, Water Quality Section
Wilmington Regional Office, Groundwater Section
Bob Cheek, Groundwater Section, Central Office
Technical Assistance and Certification Unit
Non -Discharge Compliance/Enforcement Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
An Equal Opportunity Affirmative Action Employer
/—Kerr T. Stevens
Telephone [phone] Fax [phone]
50% recycled110% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
GROUNDWATER REMEDIATION 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
Exxon Pipeline Company
Brunswick County
FOR THE
continued operation of an 8,640 GPD groundwater remediation facility consisting of a 550 gallon surge tank,
1/2 HP centrifugal transfer pump, Shallow Tray (three (3) trays) air stripper with a 300 scfm blower with an
air/water ratio of 374 to 1, a 1/2 HP centrifugal transfer pump, two (2) 10 GPM Carbtrol canisters, in series,
containing approximately 200 lbs. carbon each, an 1,100 gallon surge tank, 1/2 HP centrifugal transfer pump,
Hersey flow totalizer, a high water alarm system and logic circuitry, discharge of treated effluent to a low
pressure pipe system having an effective area of 30 feet by 212 feet, six (6) recovery wells each having an
electrically powered, 1/3 HP centrifugal submersible pump to serve Exxon Pipeline Company Valve Station
109+45 in Brunswick County, with no discharge of wastes to the surface waters, pursuant to the application
received April 23, 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 June 30, 2004, shall void Permit No.
WQ0009634 issued August 18, 1995, and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDARDS
This permit shall become voidable if the soils fail to adequately assimilate 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.
2. 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 actions that may
be required by the Division of Water Quality (Division), such as the construction of additional or
replacement treatment or disposal facilities.
3. 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.

4. Any 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.
5. Diversion or bypassing of the untreated groundwater from the treatment facilities is prohibited.
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 Systems 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 certificate 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, 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 15A NCAC 8A .0202.
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
1. Any monitoring 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. NoncompIiance Notification:
The Permittee shall report by telephone to the Wilmington 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 groundwater remediation facility which results in the treatment of
significant amounts of contaminated groundwaters 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;
b. Any process unit failure, due to known or unknown reasons, that renders the groundwater
treatment and disposal system incapable of adequate treatment and disposal, such as
mechanical or electrical failures of pumps, aerators, compressors, etc.;
c. Any failure of a pumping station, sewer Iine, 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 groundwater treatment and
disposal system is not in compliance with any specified permit limitations.
Persons reporting such occurrences by telephone shall also sale 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.
2

IV. GROUNDWATER REQUIREMENTS
The groundwater treatment system shall consistently achieve 15A NCAC 2L groundwater
standards prior to discharge to the infiltration gallery. If the treatment system fails to consistently
achieve these standards, additional treatment units, or changes in operational methods, may be
required.
2. Monitor wells MW-2, MW-6, MW-7, MW-9, and MW-10 shall be sampled every March, June,
September, and December for the following parameters:
EPA Method 8020
All wells (monitoring and recovery) shall be sampled for Water Level every March, June,
September, and December. 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.
4. The results of the sampling and analysis must be received on Form GW-59 (Groundwater
Quality Monitoring: Compliance Report Form) by the Groundwater Section, Permits and
Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626.0578 on or before the last working
day of the month following the sampling month.
5. The influent and effluent from the treatment system shall be sampled monthly for EPA Method
8020 and for xylenes per EPA Method 8020.
The influent or effluent shall be monitored continuously for flow.
The results of the sampling and analysis must be received on Form GW-59 (Groundwater
Quality Monitoring: Compliance Report Form) by the Groundwater Section, Permits and
Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on or before the last working
day of the month following the sampling month.
6. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
7. 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 Wilmington Regional Office within 48 hours,
8. The perrnittee shall retain copies of records of all monitoring information, including all
calibration and maintenance records, all original strip chart recordings for continuous monitoring
instrumentation and copies of all reports required by this permit, for a period of at least 3 years
from the date of the sample, measurement, report or application. Records of this monitoring
information shall include, but not be limited to, the following:
a. The date, exact place, and time of sampling or measurements,
b. The individual who performed the sampling or measurements,
c. The date the analyses were performed,
d. The analytical techniques or methods used, and
e. The results of any such sampling, measurements, and analyses.
3

The permittee shall report any monitoring or other information which indicates that any
contaminant may cause an endangerment to an underground source of drinking water and any
noncompliance with a permit condition of malfunction of the injection system which may cause
fluid migration outside the injection zone or area. The information shall be provided to the
Wilmington Regional Office orally within 8 hours of the occurrence and as a written submission
within five days of the occurrence. The written submission shall contain a description of the
noncompliance and its cause, the period of noncompliance, including exact dates and times, and
if the noncompliance has not been corrected, the anticipated time it is expected to continue, and
any steps taken or planned to reduce, eliminate and prevent reoccurrence of the noncompliance.
10. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A
NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is for the
disposal system constructed after December 31, 1983 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 143-215.6A(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.
V. INSPECTIONS
L 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 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 Permittee
shall maintain 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 to the Division or other permitting authority,
upon request.
3. 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. Issuance of this permit does not constitute approval for reimbursement from the Leaking
Petroleum Underground Storage Tank Cleanup Funds (15A NCAC 2P).
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.
3. This permit is effective only with respect to the nature and volume of wastes described in the
application and other supporting data.
4

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.
5. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of this project.
6. Failure to abide by the conditions and Iimitations 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.
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).
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.
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 22nd day of July, 1999
NORTH C LVENVONMAL MANAGEMENT COMMISSION
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0009634
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