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ti <br />CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br />. CENTRAL VALLEY REGION <br />' CLEANUP AND ABATEMENT ORDER NO 5-00-704 <br />' <br />FOR <br />CHEVRON PRODUCTS COMPAN-y <br />' <br />IVERN AND ROGER BAFFON1 <br />AT <br />' <br />301 WEST KETTLEMAN LANE, LOD[ <br />SAN JOAQUIN COUNTY <br />Re California Regional Water Quality Control Board, Central Valley Region, n, (hereafter Board) finds <br />t• <br />I The former Chevron Station #9-5775 at 301 West Kettleman Lane in Lodi was operated as a <br />gasoline dispensing facility by Chevron Products Company until August 1998. The property vas <br />' and is now owned by lvern and Roger Baffonr Therefore, the Chevron Products Company, and <br />Ivern and Roger Baffont, are hereafter collectively referred to as Discharger <br />1 JbOn 24 August 1998, five underground storage tanks (FJSTs), dispenser islands and associated <br />product piping were removed In January 1999, five soil borings were drilled, and four of the <br />borings were completed as monitoring wells (MW -1 through '-NIAV-4) screened from 45 to 65 feet <br />below ground surface (bgs) Groundwater samples collected on 3 February 1999 were found to <br />contain up to: <br />+ 11,000 micrograms per liter (µg/1) of total petroleum hydrocarbons as gasoline (TPHg); <br />' • 6,800 gg/i of benzene, <br />62,000 µg/1 of methyl tertiary butyl ether (MtBE); <br />• 2,400 µg11 of ethyl tertiary butyl ether (ETBE); and <br />' + 780 pg4 of tertiary amyl methyl ether (TAME). <br />3. Subsequent soil and groundwater investigations were completed.., and one extraction well and <br />' five additional monitoring wells were installed. Extraction well EX 1 is screened from 55 to 65 <br />feet bgs, monitoring well M -5 is screened from 10 to 75 feet bgs, and the other monitoring <br />' wells arc screened from 45 to 65 feet bgs. Five groundwater sampling events have been <br />completed between February 1999 and March 2400. Groundwater samples collected on the <br />1 March 2000 quarterly monitoring and sampling event, were found to contain up to: <br />' • S 1,000 µg/1 of TPg, <br />H <br />1 0 <br />• 39,000 µg/l of benzene; <br />+ 720,000 µg/1 MtBE; <br />• 18,000 µg/1 BTBE; and <br />• 6,000 pg/1 TAME. <br />' 4. On 24 March 2000, Chevron's conmult=4 Gettler--Ryan incorporated (GR) started weeldy <br />Pumping at extraction well EX -1. Approximately 300 gallons of groundwater was pumperm 6.5 <br />Cali, brnla Envlronmewd Protection Agency <br />dpi itto ad Paper <br />