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C A M B R I A <br /> Quarterly Sampling <br /> Groundwater samples were analyzed for total purgeable hydrocarbons as gasoline (TPHg) by <br /> EPA Method 8015 (Modified) and benzene, toluene, ethylbenzene, xylenes (BTEX), and <br /> methyl tertiary butyl ether (MTBE) by EPA Method 8020 <br /> Chemical analytical data are presented in a summary table in Blaine's groundwater <br /> monitoring report (Appendix A) Additional groundwater analytical data are presented on <br /> Table 1 <br /> Conclusions and Recommendations <br /> Groundwater flow direction this quarter is in the opposite direction it was last quarter This <br /> quarter and last quarter the groundwater gradient was very flat which can lead to fluctuations <br /> in flow direction Continued quarterly monitoring and sampling is needed to determine the <br /> predominant groundwater flow direction beneath this site <br /> If you have any questions regarding the contents of this document, please call Joe Neely at <br /> (707) 935-4854 <br /> Sincerely, <br /> Cambria Environmental Technology, Inc <br /> Scott Lewis <br /> Staff Geologist <br /> D GEGZ <br /> Joe W Neely, RG �FOC� <br /> Senior Protect Geologist <br /> RG 6927 No 6927 <br /> 9�GF CAL1��\P <br /> M <br /> 0955 2 <br />