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DEC 16 '94 01=54PM FUGRO WEST ROSEV ILLS P.4/7 <br /> �l�lli�Q <br /> J" <br /> FUGRO WEST.INC. <br /> 1060 WodY Lms,Sub 160 <br /> 111099►l119.cawwris 95679 <br /> Tel, (916)792-2110 <br /> December 16, 1994 Transmitted Via Facsimile FAX- (216)-MG-7930 <br /> Anthony Mendes <br /> San Joaquin Valley Unified Air Pollution Control District <br /> 4230 Kiernan Avenue, Suite 130 <br /> Modesto, California 95356 <br /> Subject: Shel Sere Station (WIC No. 244-7524-3505) <br /> 2575 Country Club <br /> Stockton, California <br /> Dear Mr. Mendes: <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 /> from an underground storage tank. Shell's rlotification letter to San Joaquin County is <br /> attached for your reference. Fugro and Shell feet that vapor extraction is the best <br /> immediataly 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 /> Fugro and Shell will proceed with the public notification required by your office. 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 /> A rnembw cit M Fugro group d companies with o fives 11hrmulmt era world <br />