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N <br /> M - <br /> ® EDMUND G. BAowry JA ImOVERNOa <br /> MAnXEW RoODRIQUEZ <br /> Water Boards `/ :KCRUCTIAN <br /> A.xRErv.A, E= <br /> State Water Resources Control Board <br /> REVIEW SUMMARY REPORT ADDITIONAL WORK <br /> PRELIMINARY REVIEW — OCTOBER 2014 <br /> Agency Information <br /> Agency Name: San Joaquin County Address: 1868 East Hazelton Avenue <br /> Environmental Health Stockton, CA 95205 <br /> Department Count <br /> Agency Caseworker: Vicki McCartney Case No.: 1408 <br /> Case Information <br /> USTCF Claim No. : 9662 GeoTracker Global ID: T06077000670 <br /> Site Name: Chevron #9-8632 Site Address: 575 West Grant Line Road <br /> Tracy, CA 95376 <br /> Responsible Party: Chevron Environmental Address: 6101 Bollinger Canyon Road <br /> Management San Ramon, CA 94583 <br /> Attn: Ms, Alexis Fischer <br /> USTCF Expenditures to Date: $0 Number of Years Case Open: 20 <br /> To view all public documents for this case available on GeoTracker use the following URL: <br /> httpJ/gootracker,waterboards.ca.gov/profile_report,asp?global_id=T0607700670 <br /> Summary <br /> The Low-Threat Underground Storage Tank (UST) Case Closure Policy (Policy) contains general <br /> and media-specific criteria, and cases that meet those criteria are appropriate for closure pursuant <br /> to the Policy. This case does not meet all of the required criteria of the Policy. Highlights of the <br /> case follow: <br /> This Site is an auto saes lot and a former commercial petroleum ue ingact y� n unau honze <br /> release was reported in June 1994 following the removal of four LISTS (three gasoline, one waste <br /> oil). Reportedly, 600 cubic yards of impacted soil was excavated in the waste oil UST area to <br /> depths between 8 and 10.5 feet below ground surface (bgs) and disposed offsite in 1994. No other <br /> active remediation has been conducted. Since 1995, eight groundwater monitoring wells have <br /> been installed and monitored. According to groundwater data, water quality objectives have been <br /> achieved or nearly achieved for all constituents. Direct contact and outdoor air exposure risk <br /> potentially exists due to remaining shallow soil petroleum contamination in the former gasoline <br /> UST and dispenser areas. <br /> The petroleum release is limited to the soil and shallow groundwater. According to data available in <br /> GeoTracker, there are no public water supply wells or surface water bodies within 250 feet of the <br /> Site. No other water supply wells have been identified within 250 feet of the Site in files reviewed. <br /> The unauthorized release is located within the service area of a public water system, as defined in <br /> the Policy. The affected shallow groundwater is not currently being used as a source of drinking <br /> water, and it is highly unlikely that the affected shallow groundwater will be used as a source of <br /> drinking water in the foreseeable future. Other designated beneficial uses of the affected shallow <br /> FELICIA MARCUS, CHAIR I THOMAS HOYIAx0A EXECUTIVE DIRECTOR <br /> 1001 I Street, Sacramento, GA 95814 1 Ma ling Address. P 0 Bax 100, Sacramento, Ca 95812-0100 1 www waterboardsOR gov <br /> t9RECYCtED FAKER <br />