NCG510399_Permit Issuance_19971027

State of North Carolina
Department of Environment,
Health and Natural Resources •
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary p FE H N F=1
A. Preston Howard, Jr., P.E., Director
October 27, 1997
Mr. Arthur Mouberry
North Carolina Department of Environment, Health, and Natural Resources
Division of Water Quality
Groundwater Section
Post Office Box 29578
Raleigh, North Carolina 27626-0578
Subject: Issuance of Gen. Permit No. NCG510000
Cert. of Coverage NCG510399
Issac's Tire and Service Center
Watauga County
Dear Mr. Mouberry:
In accordance with your application for a discharge permit received on October 2, 1997 by the
Division, we are forwarding herewith the subject Certificate of Coverage (COC) to discharge under the subject
state - NPDES general permit for petroleum contaminated groundwater remediation systems and one set of
final approved plans and specifications. Authorization is hereby granted for the construction and operation of a
groundwater remediation system (consisting of recovery wells, an oil/water separator, an air stripper, sediment
filters, carbon adsorption, and all associated piping and appurtenances) with discharge of treated wastewater
into an unnamed tributary to Sharp Creek, Class C waters in the Watauga River Basin. This COC is issued
pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between North Carolina and the US Environmental Protection Agency dated December 6, 1983 and as
subsequently amended.
This groundwater treatment system has already been installed and is operating under your verbal
permission. The groundwater contamination at this site posed a threat to residents of a nearby mobile home
park and treatment had to begin immediately.
This COC is issued under a revised general permit for discharges associated with groundwater
remediation systems (NCG510000 issued August 22, 1996). The new general permit is more comprehensive
than the original general permit in that it covers remediation of groundwater contaminated with heavier fuels
(such as diesel, fuel oil, and kerosene) as well as gasoline contamination.
The application identifies gasoline as the source of groundwater contamination. Groundwater
analytical data support this identification. Thus, effluent page A. (1) applies to your facility and lists required
effluent limitations and monitoring frequencies. Lead monitoring will also be required because of lead
contamination in the groundwater.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to request an individual permit by submitting an individual permit
application. Unless such demand is made, this certificate of coverage shall be final and binding.
Please take notice that this COC is not transferable except after notice to the Division of Water Quality.
The Division of Water Quality may require modification or revocation and reissuance of the COC.
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

Mr. Mouberry
October 27, 1997
Page 2
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Water Quality or permits required by the Division of Land Resources, the Division of Coastal
Management, or any other Federal or Local governmental permit that may be required.
This letter also grants an Authorization to Construct for the subject project. Final plans and
specifications for the subject project have been reviewed and found to be satisfactory. Authorization is hereby
granted for the construction and installation of the proposed groundwater remediation treatment system and all
necessary appurtenances with discharge of treated wastewater into an unnamed tributary to Sharp Creek in the
Watauga River basin.
This Authorization to Construct is issued in accordance with Part II, Section 2 of NPDES Permit No.
NC510000 issued August 22, 1996 and shall be subject to revocation unless the wastewater treatment facilities
are constructed in accordance with the conditions and limitations specified in Permit No. NCG510000.
Any sludge generated from this treatment facility must be disposed of in accordance with G.S. 143-
215.1 and in a manner approved by the North Carolina Division of Water Quality.
In the event that the facility fails 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 Winston-Salem Regional Office, telephone number [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.
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.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the life
of the facility and one (1) set of approved plans and specifications is being forwarded to you.
Failure to abide by the requirements contained in this Authorization to Construct may subject the
Permittee to an enforcement action by the Division of Water Quality in accordance with North Carolina
General Statute 143-215.6A to 143-215.6C.
If you have any questions or need additional information, please contact Paul Clark at telephone
number [phone], extension 580.
Sincerely,
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P. E.
cc: Central Files
Winston-Salem Regional Office, Water Quality Section
NPDES Unit
Point Source Compliance Enforcement Unit
John McKelvey, Geophex

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG510000
CERTIFICATE OF COVERAGE NO. NCG510399
TO DISCHARGE PETROLEUM CONTAMINATED GROUNDWATER AND SIMILAR WASTEWATERS
UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended,
North Carolina Department of Environment, Health, and Natural Resources
is hereby authorized to construct and operate or continue operation of a groundwater treatment system consisting of
an air/water separator, an air stripping system and carbon filtration for petroleum contaminated groundwater or
similar waste streams with the discharge of treated wastewater from a facility located at
Issac's Tire and Service Center
9638 US Highway 421
Zionville
Watauga County
to receiving waters designated as an unnamed tributary to Sharp Creek in the Watauga River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III
and IV of General Permit. No. NCG510000 as attached.
This certificate of coverage shall become effective October 27,1997
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day October 27, 1997
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

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ROAD CLASSIFICATION
PRIMARY HIGHWAYLIGHT-DUTY
IMPROVED SURFACED OR
HARD SURFACE 0
SECONDARY HIGHWAY
HARD SURFACE C==NEK= UNIMPROVED ROAD
Latitude 36*1721 " Longitude 81 °44'50"
Map # B12SW/B11 SE Sub -basin 04-02-01
Stream Class C
Discharge Class 66
Receiving Stream UT to Sharp Creek
Design Q 2400 GPD Permit expires 9/30/01
HIM
SCALE 1:24 000
0 1 MILE
0 7000 FEET
1 0 1 KILOMETER
CONTOUR INTERVAL 40 FEET
QUAD LOCATION Issacs Tire/Service Center
NCG510399
Watauga County
Groundwater Remediation

ROAD CLASSIFICATION
PRIMARY HIGHWAY LIGHT-DU1Y ROAD, HARD OR
HARD SURFACE IMPROVED SURFACE
SECONDARY HIGHWAY
HARD SURFACE =300= UNIMPROVED ROAD
36'17'21" Longitude 81044'50"
# B12SW/BllSE Sub -basin 04-02-01
Im Class C
Class 66
Stream UT to Sharp Creek
Q 2400 GPD Permit expires 9/30/01
SCALE 1:24 000
1 1 MIL
--
1 7000 FE
I
1 1 KILOMET
CONTOUR INTERVAL 40 FEET
QUAD LOCATION Issacs Tire/Service Center
NCG510399
Watauga County
Groundwater Remediation