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PUBLIC MEALTH SERVICES <br /> Opo...!�• C <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION W ' <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health O - <br /> 304 E. Weber Ave., Third Floor • P. O. Box 388 • Stockton, C 52 <br /> 209/468-3420 <br /> MED NOV 0 81995 <br /> WILLIAM STEWART <br /> 452 W LOWELL AVENUE <br /> TRACY CA 95376 <br /> RE: Bill' s Bait & Beacon Gas SITE CODE: 1400123 <br /> 515 W. Eleventh Street <br /> Tracy, CA 95376 <br /> San Joaquin County Public Health Services, Environmental Health <br /> Division (PHS/EHD) has reviewed the "Quarterly Report - June 1995" <br /> and the "Interim Work Plan" dated August 1995 prepared by Advanced <br /> GeoEnvironmental, Inc. for the above referenced site . <br /> The "Quarterly Report - June 1995" states that water in the Tank <br /> No. 2 dewatering storage tank was "treated by carbon filtration, <br /> tested and, following confirmation" discharged to the sanitary <br /> sewer. The laboratory test results of the sampling of the water <br /> after the treatment by carbon filtration are not included in the <br /> report . Please provide PHS/EHD with these laboratory sample <br /> results . <br /> Table 5 of the June 1995 report shows analytical results of water <br /> samples obtained December 16, 1994 . PHS/EHD has not previously <br /> received a report of this sampling so please provide this agency <br /> with the laboratory sample results and other information obtained <br /> during this sampling event . In addition, in future water sample <br /> report tables, please indicate dilution factors for those water <br /> samples that are diluted by the laboratory prior to analysis . <br /> The " Interim Work Plan" proposed to install four soil probings to <br /> assess the extent of contaminated soil still existing in the area <br /> of the former tank location. The "Quarterly Report - June 1995" <br /> states that two or three additional probings be installed near the <br /> southeast corner of the property (current UST location) . Soil <br /> sample results from the current UST location that was excavated in <br /> February 1995 and PHS/EHD inspection reports of the excavation <br /> indicate that soil contamination exists from 10 to 13 feet below <br /> grade in the northwest, west, and southwest portions of that <br /> excavation. PHS/EHD concurs that additional probe locations are <br /> required to investigate the extent of the contaminat --1_- --'-�- <br /> area of the site . <br /> Soil sample results obtained at the time MW2 and MW3 wer <br /> indicate some soil contamination at 10 feet below grade <br /> no contamination at 10 feet below grade in MW3 . T <br /> information between 10 and 13 feet below grade. The p <br /> A Division of San Joaquin County Health Care Services <br /> 1 <br />