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Mr. Clint Rogers 31-0308 <br /> February 7, 1992 <br /> Page 2 <br /> SAMPLING AND ANALYTICAL RESULTS <br /> The results of the monitoring and laboratory analyses of <br /> ground water samples fcx .this quarter, as well as the results <br /> of previous monitoring and sampling events, are summarized in <br /> Table 1. Based on the previous wellhead elevation survey data <br /> and depth to water measuremflnts collected during this <br /> monitoring event, ground water elevations and the general <br /> ground water gradient direction at this site are presented in <br /> Figure 2. <br /> No liquid-phase hydrocarbons or sheen were observed in any of <br /> the ground water samples. The official Laboratory reports and <br /> chain of custody records are included in Appendix A. <br /> Please call John De George at (510) 582-1582 if you have any <br /> questions regarding this report. <br /> Uncerely, <br /> ALTON GEOSCIENCE, <br /> U <br /> John De George <br /> Staff <br /> Geologist <br /> Robert E. Logan R. G. 5088 <br /> Manager, Concord Operations <br /> wp94275jd <br /> . ti <br />