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THRIFTY OIL <br /> August 25 1998 r o.5488 <br /> Mr. Ben Singh <br /> Air Quality Engineer <br /> San Joaquin Valley Unified Air Pollution Control District <br /> 4230 Kiernan Avenue, Suite#130 ` <br /> Modesto, California 95356 ' <br /> Authority To Construct/Permit To O erste <br /> Subject: Application for A ty p <br /> 'j <br /> RE: Thrifty Oil Co. Station#171 <br /> 1250 N. Wilson Way E <br /> Stockton, California .i <br /> t Mr. Singh: <br /> �k <br /> Enclosed,please find an application package for Authority To Construct/Permit To Operate a vapor <br /> extraction system at the above-referenced property. The vapor extraction unit has been proposed in <br /> our Corrective Action Plan (CAP) dated September 26, 1995.i1 The CAP was approved by San i <br /> Joaquin County Public Health Services (SJCPHS) dated January 3, 1996. Copies of the CAP and <br /> the SJCPHS approval letter are enclosed. <br /> a <br /> I <br /> On January 22, 1996, SJCPHS has completed a public participation process for the proposed site <br /> remediation. A copy of the SJCPHS letter and the"Notice of Findings"'kare enclosed. The proposed <br /> treatment unit for the vapor extraction system is a thermal/catalytic oxidizer,manufactured by Baker <br /> Furnace. This unit was previously operating at two of our stations in the South Coast Air Quality <br /> Management District (SCAQMD) and San Diego Air Pollution Control District (SDAPCD) 1 <br /> jurisdictions. The manufacturer has obtained a General Permit with the SCAQMD. Copies of the <br /> SCAQMD General Permit, SCAQMD Permit To Operate,and the SDAPCD Permit To Operate are <br /> enclosed for your reference. f� j <br /> The proposed remediation unit will be installed on the southeast corner of the site, which is <br /> approximately 850 feet from the outer property boundary of Grunsky School. A remediation <br /> compound(built during site remodeling) is currently onsite. The treatment unit will be mobilized <br /> from Southern California and installed onsite upon approval of the Authority To Construct. <br /> A copy of the vapor extraction test report showing the anticipated inlet concentrations into the <br /> treatment unit is also attached. <br /> F <br /> l 13539 E.Foster Rd., Santa Fe Springs,CA 90670-0138•(562).923-9876 <br /> .h I <br />