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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 />F F <br />CHEVRON PRODUCTS COMPAN-Y <br />�- IVERN AND ROGER BAFFONI <br />AT <br />301 WEST KETTLEMAN LANE, LODI <br />SAN JOAQUIN COUNTY <br />Fnia Regional Water Quality Control Board, Central Valley Region, (hereafter Board) finds <br />4 F fornner 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 vas <br />1 is now owned by Ivern and Roger Baffoni. Therefore, the Chevron Products Company, and <br />n and Roger Baffoni, are hereafter collectively referred to as Discharger. <br />3A-�ugust 1998, five underground storage tanks (USTs), dispenser islands and associated <br />FT,-- piping were removed. In January 1999, five soil borings were drilled, and four of the <br />zings were completed as monitoring wells (MW -1 through NfXV--4) screened from 45 to 65 feet <br />,mow ground surface (bgs). Groundwater samples collected on 3 February 1999 were found to <br />tain up to: <br />• 11,000 micrograms per liter (µg11) of total petroleum hydrocarbons as gasoline (TPHg); <br />• 6,800 µg/1 of benzene; <br />62,000 µg/I of methyl tertiary butyl ether (MtBE); <br />• 2,400 µg/1 of ethyl tertiary butyl ether (ETBE); 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 />1 = additional monitoring wells were installed_ Extraction well EX -1 is screened from 55 to 65 <br />-r,t bgs, monitoring well MW -5 is screened from 70 to 75 feet bgs, and the other monitoring <br />,Ills are screened from 45 to 65 feet bgs. Five groundwater sampling events have been <br />npleted between February 1999 and March 2000. Groundwater samples collected on the <br />March 2000 quarterly monitoring and sampling event, were found to contain up to: <br />t"'. • 51,000 µg/1 of TPHg; <br />39,000 µg/1 of benzene; <br />720,000 µg/1 MtBE; <br />18,000 µg11 ETBE; and <br />6,000 µg/1 TAME. <br />^i 24 '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 Agency <br />Qt Recycled paper <br />