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a <br /> r <br /> i. - <br /> FUGRO WEST, INC. -- - -� <br /> 1050 Melody Lane,suite 160 <br /> Roseville,California 95678 <br /> Tel: (9 16)782-2110 <br /> December 16, 1994 Transmitted Via Facsimile FAX: (916)786-7830 <br /> Anthony Mendes <br /> San Joaquin Valley Unified Air Pollution Control District <br /> 4230 Kiernan Avenue, Suite 130 <br /> Modesto, California 95356 <br /> Subject: Shell Service Station (WIC No. 204-7524-3505) <br /> 2575 Country Club = <br /> Stockton,California <br /> Dear Mr. Mendes: <br /> I <br /> Fugro West, Inc. (Fugro), on behalf of Shell Oil Company (Shell), is submitting this <br /> correspondence requesting permission to continue soil vapor extraction at the subject <br /> site. The VR Systems engine started venting from two vapor extraction wells on <br /> Tuesday, December 13, 1994. Under the provisions of your letter to Fugro, dated <br /> December 9, 1994, the soil vapor extraction pilot test cannot continue longer than five ! <br /> days. <br /> The vapor extraction is being performed in response to a reported release of gasoline <br /> , <br /> from an underground storage tank. Shell's notification letter to San Joaquin County is <br /> attached for your reference. Fugro and Shell feel that vapor extraction is the best <br /> immediately available method for the continuous recovery of hydrocarbons from the tank <br /> area. Vapor extraction should also aid in: 1) reducing vapor concentrations beneath the <br /> pavement, and 2) preventing the gasoline from migrating away from the area of release <br /> toward potential receptors. <br /> l <br /> "'� �fbgro 3nd'Sheli`will proceed with the public-notification-,required'by;your office.v It is our' <br /> opinion that in the meantime, any potential threat to groundwater or to public health can <br /> be diminished by continued vapor extraction. <br /> • <br /> DEC2 ; ' � <br /> PERM11166"Ci r-CLS <br /> .w <br /> ,0' A member of the Fugro group of companies with offices throughout the world R <br /> r <br />