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Mr Michael Infurna <br /> Page 3 <br /> • Analytical results from previous quarterly events in well MW3 have shown a general reduction in <br /> contaminant concentrations as the groundwater levels at the site rose, and an increase in concentrations <br /> as the water levels fell During this event water levels at the site fell and concentrations of TPHd and <br /> TPHg increased A general trend of decreasing contaminant concentrations over the last year is <br /> apparent in well MW3, however <br /> Recommendations <br /> The site data suggest that groundwater contarmnation is localized in the vicinity of well MW3 <br /> However, in order to further characterize the site and evaluate groundwater flow direction <br /> Ground Zero recommends installing additional groundwater monitoring wells A Workplan for <br /> the installation of additional wells was submitted to EHD on May 1, 2002 We also recommend <br /> discontinuing groundwater sampling for 1,2-DCA and EDB, as these chemicals do not appear to <br /> be present at the site <br /> The next round of groundwater sampling is scheduled for August 2002 You will be provided with a <br /> minimum of 48 hours notice prior to conducting fieldwork If you have any questions or comments <br /> please contact Ground Zero at your convenience <br /> Respectfully, <br /> Fry <br /> sis, Inc <br /> G��� C0 <br /> GREGORY P <br /> STAkiL <br /> Gregory P Stahl, RG 5023 No. 5023 <br /> CA Certified Hydrogeologist No 264 �l7lF OF CAL1F0��`� <br /> Attachments <br /> cc Mr Norm Crum, Woolsey Oil, Inc <br /> Ms Karen Collins, Environmental Closures, Inc <br /> Mr Marty Hartzell, RWQCB <br /> Mr Richard McPherson, Property Owner <br /> • <br /> Woolsey chtlgmrl2gtn2002&c <br />