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CAMBRIA <br /> i <br /> Quarterly Sampling <br /> Monitoring Wells S-1 through S-6 were sampled and analyzed for Total Petroleum <br /> Hydrocarbons as gasoline (TPHg), Total Petroleum Hydrocarbons as diesel (TPHd) according <br /> to EPA Method 8015 (Modified), benzene, toluene, ethylbenzene, xylenes (BTEX), and <br /> methyl-tertiary-butyl-ether (MTBE) according to EPA Method 8020 In addition, Volatile <br /> Organic Compounds (fuel oxygenates) by EPA Method 8260E were sampled <br /> Field monitoring data and chemical analytical data are presented in a summary table in <br /> Blaine's ground water monitoring report (Appendix A) <br /> Conclusions <br /> Ground water samples collected from the monitoring wells this quarter contained petroleum <br /> hydrocarbon concentrations similar to previous quarters' concentrations Ground water flow <br /> direction and gradient was found to be consistent with the previous monitoring event's <br /> findings <br /> Recommendations <br /> Ground water monitoring and sampling will continue on a quarterly basis for 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 /> Wayne Chiu -----� <br /> Staff E me � �'"`' <br /> �,N LI.rJ��c�.G� � <br /> ( M <br /> LLJ <br /> Diane M Lundquist, P E No C46725 <br /> Principal Engineer <br /> C46725 <br /> 1 <br /> C01�" <br /> 240-0943 2 <br />