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ENVIRONMENTAL HEALTHI)EPARTMENT <br /> SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> Donna K.Heran,R.E.H.S. Carl Bergman,R.E.H.S. <br /> 304 East Weber Avenue, Third Floor Director Mike Huggins,R.E.H.S.,R.D.I. <br /> Al Olsen,R.E.H.S. Stockton, California 95202 Douglas W.Wilson,R.E.H.S. <br /> �.. - 'i• Program Manager Telephone: (209) 468-3420 Margaret Lagorio,R.E.H.S. <br /> q .......... <br /> 4Foaa Laurie A.Cotulla,R.E.H.S. Fax: (209) 464-0138 Robert McClellon,R.E.H.S. <br /> Program Manager Mark Barcellos,R.E.H.S. <br /> CARL AND MURIEL YEARING FEB 14 2002 <br /> 1062 RODEO ROAD <br /> PEBBLE BEACH CA 93953 <br /> RE: 521 N CHEROKEE LANE SITE CODE: 1324 <br /> LODI CA <br /> San Joaquin County Environmental Health Department (EHD) is the lead agency <br /> providing the oversight of the investigation and cleanup of releases from <br /> underground storage tanks (USTs) within San Joaquin County. EHD has a <br /> contract with the California State Water Resources Control Board to conduct a <br /> UST corrective action program. The above referenced site was placed in the <br /> EHD Local Oversight Program (LOP) in September 1989. <br /> In 1988 five USTs were removed at the above referenced site. Soil samples <br /> collected at the time of removal evidenced gasoline contamination. A <br /> groundwater investigation was performed at the site. Three monitoring wells <br /> (MW) have been installed on site and several other groundwater samples have <br /> been collected both on and off site. Groundwater contamination has been <br /> documented on and off site. <br /> EHD sent you a letter on February 6, 1996. The letter stated that this is not a low <br /> risk site and remediation will be required before the site can be considered for <br /> closure with no further action. The letter also directed you to install additional <br /> MWs to define the plume and install vapor extraction wells to conduct a pilot test. <br /> Based upon the findings, a feasibility study would be completed and source <br /> removal and groundwater cleanup performed. EHD also directed you to <br /> complete a well receptor survey to identify all wells within a 2000 foot radius of <br /> this site. <br /> In 1997, Dana W. Booth prepared a Work Plan (WP) and a WP.addendum for <br /> additional MWs, soil vapor testing, and a well receptor survey. This work was not <br /> completed. Please contact EHD by February 28, 2002 regarding implementation <br /> of the WP prepared by Dana W. Booth and WP preapproval by the Cleanup <br /> Fund. <br /> No Quarterly Groundwater Monitoring Reports have been received by EHD since <br /> 1997. Quarterly Reports are required until site closure is granted. Please <br /> resume groundwater sampling and reporting. The three on site MWs must be <br />