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1 <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br />' CENTRAL VALLEY REGION <br /> i <br /> CLEANUP AND ABATEMENT ORDER NO 5-00-704 <br /> 1 _ <br /> FOR <br /> CHEVRON PRODUCTS COMPAN-Y <br /> I'VERN AND ROGER BAFFONI <br /> AT <br />' 301 WEST KETTLEMAN LANE, LODI <br /> SAN JOAQUIN COUNTY <br /> The California Regional Water Quality Control Board, Central Valley Region, {hereafter Board) finds <br /> that <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-was <br /> and is now owned by Iverri and Roger Baffonl Therefore, the Chevron Products Company, and <br /> Ivem and Roger Baffonl, are hereafter collectively referred to as Discharger <br /> 1 <br /> 2 On 24 August 1998, five underground storage tanks (USTs), dispenser islands and associated <br /> product piping were removed In January 1999, five soil borings Nvere dnlled, and four of the <br /> borings were completed as momtonng wells (MW-1 through '-NfNk"-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 pg/l of benzene, <br /> 62,000 µg11 of methyl tertiary butyl ether(MtBE), <br /> • 2,400 gg/l of ethyl tertiary butyl ether(ETBE); and <br /> • 780 µg/1 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 MW-5 is screened from 70 to 75 feet bgs, and the other monitoring <br /> wells are screened from 45 to 65 feet bgs Five groundwater sampling events have been <br /> completed between February 1999 and March 2000. Ground% ater samples collected on the <br /> 1 March 2000 quarterly monitoring and sampling event, were found to contain up to: <br /> • 51,000 gg/l of TPHg; <br /> ' • 39,000 µg/1 of benzene, <br /> • 720,000 µg/1 MtBE; <br /> 18,000 gg/I ETBE; and <br /> ' • 6,000 µg/1 TAME. <br /> 4. On 24 March 2000, Chevron's consultant, Gettler-Ryan Incorporated (GR) started weekly <br /> pumping at extraction well EX-1. Approximately 300 gallons of groundwater was pumped-in 6 5 <br /> California Environmental Protection Agency <br /> ' �a Recwled Paper <br />