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• Remedial Status Report-Tosco(Former BP)Station No 1 t 194 <br /> January 3,2001 <br /> Conclusions and Recommendations <br /> As illustrated in Table 1, grab groundwater samples collected from OBS-W and MW-2 show an <br /> increasing trend to MTBE concentrations in groundwater in the vicinity of the UST pit The <br /> groundwater purging from the UST pit on a regular basis appears to be effective in removing MTBE <br /> (52 41 pounds removed through August 21, 2000) TPHg, and BTEX concentrations remain low to <br /> not detected Therefore, GR is proposing continued weekly groundwater removal from the former <br /> UST pit conductor casing The recommended purging program is ongoing at this time <br /> If you have any questions regarding this report,please call us in our Dublin office at(925) 551-7555 <br /> Sincerely, <br /> Gettler-Ryan Inc. <br /> W Slop McIntosh ED G <br /> Project Geologist �g <br /> No. 2 <br /> Doug as J � .� <br /> Project Manager <br /> R G No 6882 �A�pFOF Cp►-1�����`� <br /> Attachments Table 1 -Groundwater Removal and Analytical Data <br /> Table 2 -Performance Test Data-May 3,20W <br /> Figure 1 -Site Plan <br /> Laboratory Analytical Reports and Chain of Custody Documents <br /> cc Mr Harlin Knoll—San Joaquin County Public Health Services <br /> Mr Scott Hooton—BP Oil Company <br /> 14018704-2 <br /> 3 <br />