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T' S <br /> III MARK <br /> rim GROUP <br /> ENGINEERS & GEOLOGISTS. IN•C.. <br /> September 18, 1990 <br /> 90-01377. 8 <br /> u�r <br /> Mid-Cal Leasing, Inc. =' �_ _ .. . • , <br /> P.O. Box 55103 <br /> Stockton, CA 95205 4 <br /> I 1 <br /> Attention: Mr. Edward J. Gotelli <br /> Subject: Removal of Underground Fuel Storage Tank <br /> 1.649' East Channel Street <br /> Stockton, California I 1 <br /> I I f <br /> Dear Sirs: <br /> f <br /> I f <br /> On July 12, 1990, the MARK Group, Engineers & Geologists, Inc. (MARK) <br /> removed one 1,000-gallon underground fuel tank from 1649 East Channel Street, <br /> Stockton, California (see Drawing 1 for attached for Site Location Map) . <br /> This work was performed under the terms of your Agreement with MARK of May <br /> 29, 1990. <br /> • The permits necessary to proceed with the removal of the tanks were <br /> obtained from the following regulatory authorities: <br /> ■ San Joaquin County Public Health Services, Environmental Health <br /> Division <br /> ■ Bureau of Fire Prevention, Stockton�Fire Department ` <br /> United States Environmental Protection Agency (U.S. EPA Site ' <br /> Generator, I.D. # CAC 000282809) <br /> ? Upon receipt of the permits, appointmentsi were scheduled with Miss Carol <br /> Oz of the San Joaquin County Public Health Services and Mr. Kent Miller of i <br /> the Stockton Fire Department so that they could observe the tank removal <br /> operations. s <br /> I ' <br /> The tank was exposed by excavating the soil that covered it. During the <br /> excavation, it was revealed that the backfill material over the tank was <br /> affected by spillage of gasoline. The total ;4quantity of material excavated I <br /> -= from the tank pit was approximately 11 cubic yards. This soil has been <br /> stockpiled on the north side of the pit. I <br /> Dry ice (CO2) was placed in the tank prior to its exhumation to displace <br /> potentially explosive vapors. This renderedt the tank inert before it was } <br /> lifted from its pit. Inspection of the tank after it was brought to the { <br /> surface showed it to be intact without holes and free of significant <br /> corrosion. A copy of the hazardous materials inspection form completed by r <br /> Miss Oz is attached as Appendix A. <br /> 7 ` <br /> Z <br /> Hookstan Square. Suite 120 3480 Buskirk Avenue Pleasant Hill, CA 94523 (415) 946-1055 <br /> a <br /> I+ <br /> II <br />