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Cie0logical7'echnics lite Page 5 <br /> Groundwater Monitoring Report <br /> Project No 723 2 <br /> February 21,2006 <br /> well's water level was allowed to recharge to at least 80% of the initial level The purge <br /> water was placed in a properly labeled 55-gallon DOT (Department of Transportation 17-H) <br /> l approved container and temporarily stored on-site <br /> l The dedicated Waterra pump was used to collect each monitoring well sample Care was <br /> ' exercised while transferring the sample into 40-m1 VOA vials preserved with hydrochloric <br /> acid All samples were checked for headspace bubbles, labeled, inserted into foam holders <br /> Iand placed into an ice chest cooled to 4°C for transport to the laboratory <br /> The sampling technician wore disposable gloves while collecting all samples <br /> I { A chain of custody document, listing all samples collected and their intended analyses, <br /> accompanied the samples from the field to the laboratory, thereby providing a means to track <br /> the movement of the samples and ensure their integrity <br /> 1.3 Laboratory Analyses <br /> IThe groundwater samples collected on November 19, 2005, were delivered to Excelchem <br /> Environmental Labs of Roseville, California (certification#2119) for analyses of <br /> r ❑ Benzene, Toluene, Ethyl Benzene, and Xylene (BTEX) by EPA method 8260B. <br /> ❑ Total Petroleum. Hydrocarbons as Gasoline (TPH-G) by EPA method 8260B <br /> ❑ MTBE, DIPE, ETBE, TAME, TBA, 1,2 DCA,EDB by EPA method 8260B <br /> II The detection limits for the above analyses are listed in Table 5 of Appendix A, while the lab <br /> analytical results are presented in Appendix B <br /> As required under AB2886, groundwater elevation and laboratory data were submitted <br /> electronically to GeoTracker on February 17, 2006 - confirmation numbers 1889683365 & <br /> l f 1149950504, respectively <br /> C2.0 FINDINGS AND DISCUSSION <br /> Groundwater samples were obtained from the existing wells and from the top three screened <br /> } intervals in each of the CMTrm wells <br /> The results of the groundwater sample analyses indicate the following <br /> Wells MW-201 and MW-209 did not contain etroleum hydrocarbon contaminants above the <br /> P <br /> Ilaboratory reporting limits <br /> I <br />