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C A M B R I A <br /> Quarterly Sampling <br /> Monitoring Wells S-1 through S-3 were sampled and analyzed for Total Purgeable Petroleum <br /> Hydrocarbons quantified as gasoline (TPPH) according to EPA Method 8015 (Modified), <br /> benzene, toluene, ethylbenzene, xylenes (BTEX), and MTBE according to EPA Method <br /> 8020 <br /> Chemical analytical data are presented in a summary table in Blaine's ground water <br /> monitoring report (Appendix A) <br /> Conclusions and Recommendations <br /> Petroleum hydrocarbons were not detected in Wells S-2 and S-3 as has been historical TPPH <br /> and benzene concentrations in Well S-1 declined again this quarter <br /> i <br /> Cambria recommends sampling and monitoring continue on the established schedule <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 gin r �gVVFESS144Y <br /> LU,y� Fy <br /> Diane M Lundquist, P E NO C46725 <br /> Principal Engineer <br /> C46725 �l�rFO�rCALkF���`� <br /> I <br /> 240-0797 2 <br />