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Mr Kyle Christie Project 0805-114 04 <br /> August 7, 1995 <br /> Page 5 <br />' • Collected air and water samples from the SVE system <br /> • Replaced SVE system catalyst on April 1, 1995, and restarted the system <br /> ANTICIPATED WORK <br />' • EMCON will submit the workplan to SJCPHS to install additional remediation wells at <br /> the site. <br />' • ARCO will continue to perform quarterly groundwater monitoring The next sampling <br /> event is scheduled for August 1995 <br /> • EMCON will operate and maintain the SVE/AS system <br /> • EMCON will collect influent/effluent SVE samples <br /> CONCLUSIONS <br /> Hydrocarbon concentrations in groundwater underlying the site have generally declined The <br /> highest concentration was detected in well MW-2 Although dissolved hydrocarbons were <br /> detected in groundwater samples collected from wells MW-3, MW-6, and MW-8, the <br /> laboratory indicated that samples contained discrete non-fuel components eluting in the gasoline <br />' range, quantified as gasoline, and the chromatogram dui not match the typical gasoline <br /> fingerprint The groundwater flow direction was towards the east, which is generally consistent <br /> with past data. <br /> Tyle SVE system will continue to operate The SVE/AS system expansion will enhance <br /> groundwater and soli remediation activities at the site <br /> DOCUMENT DISTRIBUTION <br /> We recommend that a copy of this status report be forwarded to <br />' Mike Infurna <br /> San Joaquin Public Health Services <br /> Environmental Health Division <br /> P. O Box 388 <br /> Stockton, California 95201-0388 <br /> SAGN\pj"80"8051140 4cs-45 pas 1 <br /> 1 <br />