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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br />CENTRAL VALLEY REGION <br />CLEANUP AND ABATEMENT ORDER NO 5-00-704 <br />FOR <br />CHEVRON PRODUCTS COMPANY <br />INTERN AND ROGER BAFFONI <br />AT <br />301 WEST KETTLEM kN LANE, LODI <br />SAN TOAQUIN COUNTY <br />The California Regional Water Quality Control Board, Central Valley Region, (hereafter Board) finds <br />that <br />I The fornier 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 />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 'M1 '-4) screened from 45 to 65 feet <br />below ground surface (bgs) Groundwater samples collected on') February 1999 were found to <br />contain up to <br />• 11,000 micrograms per liter (µg11) of total petroleum hydrocarbons as gasoline (TPHg), <br />6,800 µg11 of benzene, <br />62,000 µg11 of methyl tertiary butyl ether (MtBE), <br />• 2,400 µg11 of ethyl tertiary butyl ether (ETBE), and <br />780 µg/I of tertiary amyl methyl ether (TAME) <br />3 Subsequent soil and groundwater investigations were completed, and one extraction well and <br />five additional monitonng wells were installed Extraction w ell EX -1 is screened from 55 to 65 <br />feet bgs, monitoring well MW -5 is screened from 70 to 75 feet bus, 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 Grounder ater samples collected on the <br />1 March 2000 quarterly monitoring and sampling event, were found to contain up to <br />• 51,000 µg/I of TPHg, <br />39,000 9911 of benzene, <br />• 720,000 µg11 MtBE, <br />• 18,000 µg/1 ETBE, and <br />6,000 ug/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 pumpecin 6 5 <br />California Environmental Protection Agency <br />�a Recycled Paper <br />