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® EaDMUND saxoaG. 13aowx in <br /> • o. am 14 MAI'THEwRot uizz <br /> C OR <br /> Water Boards `./ E.wENVIRONMENTAL ALP93I °, ex <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 /> j <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 /> http://geotracker.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 /> ThisSite is an auto sales lot anda f ormer co m m a rd al—p—et-rol eumof eIingacuity An uncut inorized <br /> release was reported in June 1994 following the removal of four USTs (three gasoline, one waste <br /> j 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 /> 9 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 /> FEURIA MARCUS, CHAIR I THaMAs HawARo, exEcu ivE oiREcroR <br /> 10011 Steel, Sacramento, CA 05514 1 Mailing Address P O. Box 100, Sacramento, Ca 051312-0100 1 www walermards. no Rev <br /> CJ n �vu .a ween <br /> I <br />