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r" <br /> r✓ <br /> Quarterly Summary Report <br /> • First Quarter 2000 <br /> Former Unocal Service Station 2859 <br /> 1665 Pacific Avenue <br /> Stockton, California <br /> County STID # None <br /> County San Joaquin <br /> BACKGROUND <br /> Underground storage tanks removed in March 1988 From March 1988 through <br /> November 1994, a total of 12 on-site and 3 off-site borings were drilled Four on-site <br /> monitoring wells, 3 on-site soil vapor extraction (SVE) wells, and 5 off-site monitoring <br /> wells were installed Analytical results indicate that soil near the eastern dispenser island <br /> contains gasoline hydrocarbons and groundwater has been impacted with gasoline <br /> hydrocarbons A work plan to initiate a SVE pilot test was submitted on July 14, 1995 <br /> A 30-day public notification for air permitting was initiated, and an air permit to <br /> construct was received in December 1995 The SVE remedial system was constructed in <br /> January 1996 The SVE pilot test was run from January through November 1996, during <br /> which time it removed nearly 2,800 pounds of hydrocarbons <br /> . RECENT QUARTER ACTIVITIES <br /> First quarter 2000 groundwater monitoring and sampling was also performed during this <br /> reporting period <br /> NEXT QUARTER ACTIVITIES <br /> First quarter 2000 groundwater monitoring report will be issued and second quarter <br /> sampling will be performed <br /> 3100405A/1QOOQSR 1 April 25,2000 <br />