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r Mr Kyle Christie Project 0805-140 03 July 23, 1996 Page 3 therefore, the City will exercise their rights under eminent domain and take over a portion of the property Due to widening of Hammer Lane, well MW-3 will need to be abandoned Based on data collected to date, benzene was detected only once (second quarter 1994 at a concentration of 27 parts per billion [ppbj), and concentrations of TPHG have not exceeded 330 ppb since monitoring began in October 1991 Therefore, EMCON is not proposing to replace well MW-3 Task 1 - Prefield Activities • Prepare a site safety plan • Drilling permit was obtained from SJCPHS in October 1995 • EMCON will notify Underground Service Alert of its intent to drill at least 48 hours before dnlling to identify the location of underground utilities Task 2 - Field Activities • 21 Tank Removal Activities Existing Tanks and Product Delivery Line Removal and Sampling • Collect appropriate soil samples from within 2 to 4 feet below the base of the former gasoline tanks One soil sample will be collected from beneath each end of each UST for a total of eight soil samples • Submit soil samples to a state-certified analytical laboratory for analyses of TPHG and BTEX using U S Environmental Protection Agency (USEPA) Modified Methods 8015 and 8020, respectively Soil samples collected from under any former leaded gasoline tank will also be analyzed for total lead using USEPA Method 7410 • Collect a soil sample from within 2 to 4 feet below the base of the waste-oil tank • Submit the soil sample collected from the base of the waste-oil tank to a state- certified analytical laboratory for analyses of TPHG using USEPA Method 8015, BTEX using USEPA Method 8020, TOG using USEPA Method 5520 D and F, total petroleum hydrocarbons as diesel (TPHD) using USEPA Method 8015, chlorinated hydrocarbons (CLHC) using USEPA Method 8010, PCBs using SAC\N\PJM805�08051400 3 D 95 pas f