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I <br /> I� f <br /> UM <br /> I <br /> Mr.Jeffrey Wong <br /> San Joaquin Public Health Service <br /> + First Quarter 2004 Groundwater Monitoring Report <br /> June 11,2004 <br /> I <br /> Page 4 of 4 <br /> • 1,2-DCA was reported for three wells;at concentrations ranging from 3.1 to 31 gg/L. <br /> i <br /> • PCE was not reported in one sample,DMW-8,at a concentration of 3.9 Ag/L. <br /> Ifou have an questions I� } <br /> Y y q ons or need additional information, please do not hesitate to call me at � <br /> (916)679-2293. <br /> Sincerely, <br /> URS Corporation Americas <br /> t <br /> I <br /> 1 1%L <br /> Anthony Mindling, R.G. G <br /> Project Geohydrologist <br /> I <br /> Attachments <br /> I <br /> List of Tables <br /> Table 1 Monitoring Well Construction Details <br /> Table 2 Water Level Data <br /> Table 3 Groundwater Analytical Results,TPH-diesel (Method 8015B),Volatile Organic <br /> Compounds and Oxygenates (EPA Method 8260B <br /> �$ List of Figures I <br /> Figure 1 Site Vicinity Map <br /> Figure 2 Site Location Map <br /> Figure 3 Groundwater Elevation Contour Map, September 25,2003 <br /> Figure 4 PCE and 12-DCA Concentration <br /> g � I s <br /> List of Appendices I <br /> Appendix A Field Record of Water Sample and Chain-of-Custody Forms <br /> Appendix B Data Validation Summary and Analytical Laboratory Report <br /> IL <br /> i K:1Wprocess1227361new1Q04AHp revOl.duc <br /> fri4 . <br />