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1 CALH-ORNl4 REGIONAL WA FER QUALITY CON-TROL BOARD <br /> CENTRAL VALLEY REGION <br /> CLEANUP AND ABATEMENT ORDER NO 5-00-704 <br /> FOR <br /> CHEVRON PRODUCTS COMPAN-Y <br /> IVERN AND ROGER BAFFONI <br /> AT <br /> 301 WEST KETTLEMAN LANE, LODI <br /> SAN TOAQUIN COUNTY <br /> Tile California Regional Water Quality Control Board, Central Valley Region, (hereafter Board) finds <br /> that <br /> ' 1 The foriner 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 Ivern and Roger Baffoni Therefore, the Chevron Products Company, and <br /> ' ivern and Roger Baffoni, are hereafter collectively referred to as Discharger <br /> 2 On 24 August 1998, five underground storage tanks (USTs), dispenser islands and associated <br /> lieproduct piping were removed In January 1999, five soil bonnQs were drilled, and four of the <br /> borings were completed as monrtonng wells (MW-1 through N4 W-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 µg/1 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 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 Groundn ater samples collected on the <br /> I March 2000 quarterly monitoring and sampling event, were found to contain up to <br /> ' . 51,000 gg/1 of TPHg, <br /> 39,000 µg/1 of benzene, <br /> • 720,000 gg/l MtBE, <br /> ' • 18,000 gg/l ETBE, and <br /> w 6,000 gg/l 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 pumpedin 6 5 <br /> Califoriiia Eriviioitmeittal Protectioir 4 ency <br /> Rerveled Paper <br />