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EOM NO G. BROWN JR. <br /> —ER— <br /> C 1 l 1 i O R N I A MATTHEW RODRIGUEZ <br /> Water Boards U1, SECRETARY FOR <br /> ENVIRONMENTAL PROTECTION <br /> State Water Resources Control Board <br /> UST CASE CLOSURE REVIEW SUMMARY REPORT <br /> Agency Information <br /> Agency Name: Central Valley Regional Water Address: 11020 Sun Center Drive #200 <br /> Quality Control Board (Regional Rancho Cordova, CA 95670 <br /> Water Board <br /> Agency Caseworker: Vera Fischer Case No.: 390177 <br /> Case Information <br /> Cleanup Fund (Fund) Claim No.: 14349 GeoTracker Global ID: T0607700124 <br /> Site Name: Guardino-Crawford Company Site Address: 517 West Fremont Street <br /> Stockton, CA 95203 <br /> Responsible Party: Guardino— Crawford, Address: 517 West Freemont Street <br /> Company Stockton, CA 95203 <br /> Fund Expenditures to Date: $417,498 Number of Years Case Open: 28 <br /> Fund Budget Category: CAP/REM <br /> To view all public documents for this case available on GeoTracker use the following URL: <br /> http://geotracker.waterboards.ca.gov/map/?global id=T0607700124 <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 meet all of the required criteria of the Policy. Highlights of the case <br /> follow: <br /> This case is a former storage facility and is currently an unoccupied lot with two buildings. An <br /> unauthorized release was reported in February 1988. One gasoline UST was removed in <br /> September 1989. Air sparge/soil vapor extraction (AS/SVE)was conducted from April 2014 to <br /> March 2015, which removed 536 pounds of total petroleum hydrocarbons as gasoline (TPHg). The <br /> removal rate at shutdown was less than 1.5 pounds per day. Since 1999, eight groundwater <br /> monitoring and three remediation wells have been installed and monitored. According to <br /> groundwater data, water quality objectives have been achieved or nearly achieved except in the <br /> source area. <br /> The petroleum release is limited to the soil and shallow groundwater. According to data available <br /> in GeoTracker, there are no public water supply wells or surface water bodies within 250 feet of the <br /> defined plume boundary. No other water supply wells have been identified within 250 feet of the <br /> defined plume boundary in files reviewed. The unauthorized release is located within the service <br /> area of a public water system, as defined in the Policy. The affected shallow groundwater is not <br /> currently being used as a source of drinking water, and it is highly unlikely that the affected shallow <br /> groundwater will be used as a source of drinking water in the foreseeable future. Other designated <br /> beneficial uses of the affected shallow groundwater are not threatened, and it is highly unlikely that <br /> they will be, considering these factors in the context of the site setting. Remaining petroleum <br /> FELICIA MARCUS,CHAIR I THOMAS HOWARD,EXECUTIVE DIRECTOR <br /> 1001 1 Street,Sacramento,CA 95814 1 Mailing Address:P.O.Box 100.Sacramento,CA 95812-0100 1 www.waterboards.ca.gov <br /> `��RECYCLED PAPFR <br />