SITE INFORMATION AND CORRESPONDENCE

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Ultramar Ultramar,Inc. Telecopy: 209-585-5685 Credit P.O.Box 466 209-583-3330 Administrative 525 W.Third Street 209-583-3302 Information Services Hanford,CA 93232-0466 209-583-3358 Accounting (209)582-0241 DATE REPORT SUBMITTED: December 16, 1996 QUARTER ENDING: September 30, 1996 SERVICE STATION NO.: 695 ADDRESS: 900 South Cherokee Lane, Lodi, California COUNTY: San Joaquin ULTRAMAR CONTACT: Kenneth R. Earnest TEL. NO: 209-583-5571 BACKGROUND: Ultramar purchased site from Conoco in July 1990. Several ground-water monitoring wells had been installed by Conoco (formerly Kayo OR Company) at and near the site. At the time of site purchase, all but six wells (RW-1, MW-16, MW-18, MW-20, MW- 21, and MW-25)were dry. In March 1991, one additional ground-water monitoring/vapor-extraction well (MW-27) and one vapor-extraction well (VW-26) were installed as part of the installation of a vapor extraction system designed and permitted for the site. Soil and ground-water analyses showed nondetectable to moderate TPHg and benzene concentrations. Permitting for the system was completed and the vapor extraction system was installed early in the third quarter 1991. A permit application for a 500 scfin catalytic incinerator was approved by the APCD and the system was initiated on September 20, 1991. During tank replacement activities, first quarter 1994, 15 underground storage tanks were removed from the property. Eleven of these tanks were unknown prior to the tank removals. During the first quarter 1994 three groundwater monitoring wells and a groundwater recovery well were installed. Also, twelve vapor extraction borings were drilled with three or four"nested" wells in each boring. Drilled the site for closure in March 1996. BEACON A Member of the Ultramar Group of Companies #1 Quality and Service