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GeologicalTechnus 2rtc Page 4 <br />' Groundwater Monitoring Report <br /> Project No 770 2 <br /> October 15,2002 <br /> All non-disposable sampling equipment was decontaminated using a hot water washer and <br /> tdetergent before and between uses Disposable gloves were used by the technician to <br /> collect all samples and were changed with each sample collection <br />' A chain of custody document, listing all samples collected, accompanied the samples from <br /> field to laboratory, thereby providing a means to track their movement and insure their <br /> integrity <br /> All water purged from each monitoring well and not used as a sample was placed in a <br />' properly labeled 55 gallon DOT approved container and stored on site until its proper <br /> disposition can be arranged <br />' Groundwater monitoring field logs are included in Appendix C <br /> 1.3 Laboratory Analyses <br />' The groundwater samples collected on June 7, 2002, were delivered to Sherwood Lab <br /> (Department of Health Services Certification No 1400), of Hilmar, California, for analysis <br /> Sherwood analyzed the seven monitoring groundwater samples well dwater les for <br /> P <br /> • Benzene, Toluene, Ethyl Benzene, and Xylene (BTEX)by EPA method 8020 <br /> • Total Petroleum Hydrocarbons as Gasoline (TPH-G) by EPA method 5030/8015(M) <br /> • TEPH- Diesel and Motor Oil by EPA method 3500/8100(M) <br /> Sherwood forwarded samples from well MW-5 and MW-105 to Entech Analytical Labs <br /> Inc , Department of Health Services Certification No 2346, of Santa Clara, California, for <br />' analyses of <br /> • Methanol and Ethanol by EPA method 8015ti,��"3 <br />' The detection limits for the above analyses are listed in Table'll'of Appendix A while the lab <br /> analytical results are presented in Appendix B <br /> As required under AB2886, the laboratory data was submitted electronically to GeoTracker <br /> on September 11, 2002 - confirmation number 6872940182 <br />