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' CALIFORNIA REGIONAL WATER QUALITY CO\'TROL BOARD <br /> CENTRAL VALLEY REGION <br /> ' CLEANUP AND ABATEMENT ORDER NO 5-00-704 <br /> FOR <br /> ' CHEVRON PRODUCTS COMPANY <br /> 1VERN AND ROGER BAFFONI <br /> AT <br /> ' 301 WEST KETTLEM AN LANE, LODI <br /> SAN TOAQUIN COUNTY <br /> La Regional Water Quality Control Board, Central Valley Region, (hereafter Board) finds <br /> �fomier Chevron Station #9-5775 at 301 West Kettleman Lane in Lodi was operated as a <br /> line dispensing facility by Chevron Products Company until August 1998 The property was <br /> I is now owned by lvern and Roger Baffom Therefore, the Chevron Products Company, and <br /> ,n and Roger Baffoni, are hereafter collectively referred to as Discharger <br /> 2ugust 1998, five underground storage tanks (USTs), dispenser islands and associated <br /> FWpiping were removed In January 1999, five soil bonngs were drilled, and four of the <br /> Iftrigs were completed as monitoring wells (MW-1 through NfW-4) screened from 45 to 65 feet <br /> w ground surface(bgs). Groundwater samples collected on 3 February 1999 were found to <br /> Main 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 pg/1 of ethyl tertiary butyl ether(F-TBE); and <br /> '• 780 µg/1 of tertiary amyl methyl ether(TAME) <br /> ibsequent soil and groundwater investigations were completed., and one extraction well and <br /> additional monitoring wells were installed. Extraction well EX-1 is screened from 55 to 65 <br /> bgs,monitoring well MW-5 is screened from 70 to 75 feet bgs,and the other monitoring <br /> -Us are screened from 45 to 65 feet bgs Five groundwater samphng events have been <br />(7iet; <br /> d between February 1999 and March 2000. Ground%vater samples collected on the <br /> arch 2000 quarterly monitoring and sampling event, were found to contain up to• <br /> 51,000µg/1 of TPHg, <br /> • 39,000 gg/I of benzene, <br /> • 720,000 119/1 MtBE; <br />' . 18,000 µg/1 ETBE, and <br /> 6.000 µg/l TAME <br /> r24 March 2000, Chevron's consultant, Gettler-Ryan Incorporated (GR) started weekly <br /> mping at extraction well EX-1 Approximately 300 gallons of groundwater was pumped--in 6 5 <br />' California Environmental Protection -Iger:cy <br /> '.j Recycled Paper <br />