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GRANITE CONSTRUCTION FACILITY <br /> WKA No 2088 08 <br /> February 25, 1997 <br /> Page 2 <br /> approximately 0 004 feet/foot (see Plate 2) It is our opinion that the new flow direction to the <br /> southwest is probably due to recent rains and flooding of areas in San Joaquin county A <br /> historical summary of the groundwater elevations measured during past sampling events is <br /> summarized in Table I <br /> Laboratory test results for the water samples obtained from monitoring wells MW 1 through MW3 <br /> revealed detectable concentrations of TPH-g and BTEX Monitoring well MW4 revealed no <br /> detectable concentrations of TPH-g, TPH-d, or BTEX MTBE was not detected in any of the <br /> four monitoring wells sampled Analytical results of groundwater samples obtained from the four <br /> monitoring wells are summarized in Table 2 Chain-of-custody documentation and laboratory <br /> reports are included in Appendix B <br /> At the request of Mr Harlin Knoll of SJCPHS, the closure committee meeting previously <br /> scheduled for March 5 has been changed to March 20, 1997 I will contact you one to two <br />. weeks prior to the meeting to confirm the time, date, and place Please call if you have any <br /> questions regarding this report <br /> Wallace ■ Kuhl & Associates, Inc <br /> Michael Watan Eric Hubbard <br /> Staff Engineer Registered Geologist 94807 <br /> MMW EJH sdm <br /> Copies to Mr Harlin Knoll, SJCPHS <br /> Ms Elizabeth Thayer, CVRWQCB <br /> h%Mk20Ag4S QTI <br /> INK <br /> WALLACE KUHL <br /> RM&-dpaper ErASSOCIATES INC <br />