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]VM ASSOCIATES <br /> WKA No 1735 02 <br /> February 9, 1994 <br /> Page 2 <br /> November 5-1993 Sampling <br /> Analytical results of samples obtained from monitoring well MW1 revealed TPH as diesel <br /> concentrations of 160 pg/1 and trace concentrations of toluene Analysis of samples obtained <br /> from monitoring wells MW-2 and MW-3 continue to show no detectable concentrations of TPH <br /> and BTEX Analytical results for ground water samples obtained from the three on-site <br /> monitoring wells are summarized in Table 2 Chain-of-custody documentation and laboratory <br /> reports are included in Appendix B <br /> Based on the analytical results for the last five sampling events dating back to December 16, <br /> 1992, water samples collected from the three monitoring wells have generally shown a decrease <br /> in TPH concentrations Water samples collected from MW-1 continue to reveal detectable <br /> concentrations of TPH as diesel However, no detectable concentrations of TPH or BTEX has <br /> been detected in MW-2 and MW-3 for the last two quarters We recommend continued sampling <br /> on a quarterly basis to verify any detectable concentrations of TPH or BTEX <br /> We also recommend that the San Joaquin County Public Health Services be notified of our <br /> findings <br /> Please call if you have any questions <br /> Wallace ■ Kuhl & Associates, Inc <br /> ichael Watari Kurt Balasek <br /> Staff Engineer Senior Staff Hydrogeologist <br /> -i-- - kQV__' <br /> Eric Hubbard <br /> Registered Geologist #4807 <br /> MW KB EH rbn sdm <br /> Copy to Mr Gary Weinberger, JVM Associates O�p <br /> MU735-02 QT4 <br /> WALLACE•KUHL <br /> R,ndedpupe, ErASSOCIA7C--S INC <br />