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' Report—Fist Phase Remedial System Page 12 <br /> Y <br /> Former Manna Pro Site <br />' Project No 2011 <br /> June 18,2002 <br /> 4.4 Air Sample Analysis <br />' The air samples collected to monitor the vapor extraction pilot test were submitted to <br /> Geo-Analytical Laboratories, of Modesto, CA, a state certified analytical lab <br />' (DHS#1157) The air samples were analyzed as follows <br /> • Total Petroleum Hydrocarbons as Gasoline (TPH-Gasoline) by EPA method 5030, <br />' and <br /> • Benzene, Toluene, Ethylbenzene, and Total Xylenes (BTEX) by abbreviated EPA <br /> 8021B <br />' The detection limits for those compounds are as follows <br />' <br /> Compound TPH-Gasoline Benzene Toluene Ethyl Benzene Xylene <br /> Detection Limit 50 03 03 03 06 <br /> Units µg/L µg/L µg/L µg/L Ftg/L <br /> lie I <br /> Copies of the laboratory data sheets are attached in Appendix A-2 <br /> 2937 Veneman Ave, #B240 Geo-Phase Environmental Inc Phone(209)569-0293 <br /> Modesto,CA 95356 Fax(209)569-0295 <br />