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CVVZA _ <br /> ASSOCIATES I N C . <br /> results show a general decrease in concentrations, though most remained within historical <br /> parameters as set by previous groundwater analytical results. <br /> RECOMMENDATIONS <br /> Based on the results of the third quarter 2002 monitoring event, we recommend continued <br /> quarterly groundwater monitoring with analysis of samples for TPHg, BTEX, and MTBE. <br /> We also recommend implementing a workplan previously submitted to EHD for further <br /> investigation to define lateral and vertical extent of petroleum-impacted soil and water. <br /> Please contact our office at (209) 579-2221 if you have any questions or comments. <br /> Respectfully submitted, <br /> ATC Associates Inc. <br /> hn Sellman <br /> Staff'Geologist <br /> Yilt�S 61 . <br /> Je nne Hornsey, P.E. t� 5.,.5 1,it , ; d <br /> CA Registered Civil Engineer No. 47410 _'s• �' i� 1:�°3�~�. <br /> �. <br /> cc: Mr. Robert Eggiman <br /> Marty Hartzell RWQCB <br /> wawordpro1224931Reports`3QR-02,doe 4 <br />