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l <br /> Mary Meays <br /> • February 15, 1993 <br /> Page 2 <br /> Sam le Results <br /> No detectable concentrations of Total Petroleum Hydrocarbons (TPH) as diesel or <br /> Benzene, Toluene, Ethyl Benzene and Xylene (BTEX) were reported in the <br /> groundwater samples obtained from all three monitoring wells <br /> Please find enclosed an analytical summary table and the complete analytical data <br /> reports including a quality control summary <br /> Groundwater Elevation <br /> Prior to purging the monitoring wells, the depth to groundwater was obtained from <br /> each of the wells The groundwater data is summarized to Table 2 The resulting <br /> groundwater gradient is North 12° East with a magnitude of 0 6 feet/100 feet The <br /> groundwater elevations and the gradient direction are shown on Figure 1 <br /> Schedule <br /> Based on a letter from the SJCPHS dated December 16, 1992 and the results of the <br /> current groundwater sampling, this site is eligible to be considered for closure No <br /> further monitoring of the groundwater will be performed unless directed by the <br /> SJCPHS Doane will submit a final plan for closure including the destruction of the <br /> wells pending the SJCPHS review of this report <br /> If you have any questions, please contact Joel Bruxvoort at (415) 364-9031 <br /> Sincerely, <br /> I <br /> 10el Bruxvoort <br /> Staff <br /> Geologist <br /> t7, <br /> Greg Eich6, RG <br /> Senior Geologist <br /> • JBB/lbb <br /> enclosures. Table 1 - Analytical Data Summary <br /> Table 2 - Groundwater Elevation Data o� <br />