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Page 1 of 1 <br /> Vicki McCartney [EH] <br /> From: Windy Brown [windysab@yahoo.comj <br /> Sent: Monday, October 16, 2006 12:56 PM <br /> To: Vicki McCartney [EHl <br /> Subject: Frontier Transportation, Inc.,425 Larch Road, Tracy: Quarterly sampling results <br /> Hi Vicki, <br /> We have the lab results in for the quarterly groundwater monitoring at 425 Larch Road, Tracy. The <br /> contaminant plume has boundaries defined by clean wells (no TPH-gas or oxygenates) to the east(MW- <br /> 6 and MW-7) and to the south(MW-5,MW-10 and MW-11). The wells along the north(MW-2, MW-4 <br /> and MW-8) and the west(MW-9, MW-20 and MW-4 at the northwest) have MTBE and TPH-gas <br /> contamination. The laboratory analytical results are attached to this email and will be included in the <br /> quarterly report. The laboratory is currently creating the EDF file, which will be submitted to <br /> GeoTracker upon receipt. <br /> The EHD previously requested that these results be used to determine whether or not additional wells <br /> should be installed to delineate the extent of contaminant migration. It appears that additional wells will <br /> be required. Unless otherwise directed,BEA will submit a work plan for the installation of additional <br /> wells within 30 days (by November 15, 2006). <br /> The 2006 3rd Quarter Groundwater Monitoring Report will also be submitted during November 2006. <br /> BEA is currently analyzing data to be included in the Aquifer Pump Test and Well Installation Report of <br /> Findings,which will be submitted upon completion. <br /> Please let me know if you have any comments or questions. <br /> Best regards, <br /> Windy S. Brown <br /> windysab@,yahqq-.com <br /> yahoocom <br /> 760-617-6438 <br /> 10/17/2006 <br />