NC0004839_AUTHORIZATION To Construct_19931112

State of North Carolina
Department of Environment, :} W
Health and Natural Resources 4
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary C) FE
A. Preston Howard, Jr., P.E., Director
November 12, 1993
Mr. E. Fraser Johnstone
Exxon Co., USA
P.O. Box 30451
Charlotte, NC 28230-0451
Subject: Permit No. AC0004839
Authorization to Construct
Exxon Paw Creek Terminal
Groundwater Remediation Facility
Mecklenburg County
Dear Mr. Johnstone:
A letter of request for an Authorization to Construct was received June 23, 1993 by the Division
and final plans and specifications for the subject project have been reviewed and found to be satisfactory.
Authorization is hereby granted for the construction of a groundwater treatment facility consisting of six
recovery wells with three inch diameter pneumatic pumps (three planned for future installation),a 20 gpm
oil/water separator with free product diverted to an existing storage tank, a 20 gpm NEPCCO air stripper
sized at 24 feet with an 18 inch diameter and all the necessary piping and appurtenances necessary for the
proper operation with discharge of treated wastewater into Long Creek in the Catawba River Basin.
This Authorization to Construct is issued in accordance with Part III, Paragraph A. of NPDES
Permit No. NCO004839, issued May 21, 1993, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NCO004839.
The sludge generated from these treatment facilities must be disposed of in accordance with G.S.
143-215.1 and in a manner approved by the North Carolina Division of Environmental Management.
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 wastewater treatment or disposal facilities.
The Mooresville Regional Office, telephone number 704-663-1699, shall be noted 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.
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 the NPDES Permit, this Authorization to Construct and the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC
27626-0535.
pA. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50%recycled/10%post-consumer paper

"I L s
Permit No. NCO004839
Autliorization to Construct
Exxon Co. USA
November 12, 1993
Page 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 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 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.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the
life of the facility.
Failure to abide by the requirements contained in this Authorization to Construct 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.
The issuance of this Authorization to Construct 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.
One (1) set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Mr. Randy Kepler, telephone number 919/733-
5083.
7rest
Y,
on , Jr., P.E.
cc: Mecklenburg County Health Department
Mooresville Regional Office,Water Quality
Training and Certification Unit
Dames&Moore