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5/15/14 <br /> PUBLIC NOTICE: FRANK'S ONE <br /> STOP, 2072 W. YOSEMITE AVE., <br /> Water Boards MANTECA, CA <br /> The California Regional Water Quality Control Board, Central <br /> Valley Region (Central Valley Water Board) invites public <br /> comment on a proposal to construct groundwater monitoring <br /> wells west of and along Airport Way, north of Yosemite Ave., <br /> to collect groundwater data. This information is to be used to <br /> characterize a fuel hydrocarbon release from Frank's One <br /> Stop at 2072 West Yosemite Ave. Results may be used to <br /> identify properties along Airport Road which may be offered <br /> connections to the local municipal water supply. A map <br /> showing the location of the Site and the proposed locations <br /> for monitoring well installations as attached (Figure 1). <br /> CONTACTS SUBJECT SITE: <br /> Frank's One Stop <br /> 2072 W. Yosemite Ave., Manteca <br /> Questions ' ' San Joaquin County, CA <br /> Information Contact: GeoTracker Global ID # T06107700558 <br /> Mr. James Barton PUBLIC COMMENT PERIOD: <br /> RegionalBoard 15 April 2014 through 15 May 2014 <br /> (916) 464-4615 <br /> jim.barton@waterboards.ca.govCASE SUMMARY: <br /> A release of petroleum fuels was discovered emanating <br /> from the Frank's One Stop gasoline station in 1995. In <br /> 1998 replacement of the fuel storage and delivery system <br /> occurred. <br /> Since 1998, several phases of investigation, including <br /> sampling domestic wells to the north and south of the site <br /> have been conducted. Results of these investigations <br /> indicate 12 domestic wells were impacted by the fuel <br /> release and 11 wells were initially provided wellhead <br /> treatment. Nine wellhead treatment systems are currently <br /> in operation. <br /> The primary pollutant migrating from the site is methyl <br /> tertiary butyl ether (MTBE). The groundwater pollution <br /> extends from the gasoline station site to the north <br /> along/under Airport Way. The pollution is currently based <br /> on data collected from domestic water supply wells and <br /> not properly constructed monitoring wells. A more <br /> scientifically valid measurement of the pollutant impacts <br /> can be determined by construction of appropriately <br /> designed groundwater monitoring wells. <br /> The release of gasoline to subsurface was stopped when <br /> the underground tank system was replaced in 1998. <br />