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1 <br />' Quarterly Monitoring Report,July, 1999 <br /> Canepa's Car Wash(Park Street) <br /> August 31, 1999 <br /> Page 5 <br /> The third quarter, 1999, laboratory analytical results indicate that the area of groundwater contamination most <br /> impacted by petroleum hydrocarbons is in the northern portion of the site in the vicinity of monitor wells MW- <br /> 2 and MW-5 <br /> 1 <br /> 6 RECOMMENDATIONS <br />' Condor recominends that additional investigation be conducted to further characterize the extent of <br /> contamination at the site, including the installation and sampling of additional monitor wells The existing <br /> monitor wells at the site are screened well below the current groundwater table and do not provide sufficient <br />' infonnnation pertaining to the vadose zone/groundwater interface These wells should be replaced with well <br /> screens that intercept the groundwater table A work plan describing the recommended installation of four <br /> additional monitor wells (MW-8 through MW-11) was prepared and submitted to the PHS/EHD in November <br />' 1998 The work plan is currently pending approval by the PHS/EHD Please call us at (209) 234-0518 with <br /> any questions <br /> Respectfully submitted, /� �� ® CO, <br /> CONDOR EARTH TECHNOLOGIES, INC <br /> C �J DONALD F.KRESSE <br /> Todd C Hafner Donald F Kresse1 <br /> No.643a <br /> Senior Geologist California Registered �:0% <br /> Geologist#6430 q�� per' <br /> OF Cg1-�F <br /> 1 <br />' Camp,I PARKQMR199d. <br /> I <br /> L� CONDOR <br />