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C A M B R I A <br /> Quarterly Sampling <br /> The groundwater sample was analyzed for total purgeable hydrocarbons as gasoline (TPHg) <br /> by EPA Method 8015 (Modified) and benzene, toluene, ethylbenzene, xylenes (BTEX), and <br /> methyl tertiary butyl ether (MTBE) by EPA Method 8020 The groundwater sample was <br /> also analyzed for MTBE by EPA Method 8260A <br /> Chemical analytical data are presented in a summary table in Blaine's groundwater <br /> monitoring report (Appendix A) <br /> Conclusions and Recommendations <br /> The concentration of MTBE in this well this quarter is similar to previous quarter's <br /> concentrations Quarterly monitoring and sampling will continue on the established schedule <br /> If you have any questions regarding the contents of this document, please call Joe Neely at <br /> (707) 933-2361 <br /> Sincerely, <br /> Cambria Environmental Technology, Inc <br /> --�a� <br /> GenoMammini <br /> Staff Geologist <br /> DW Ep�o <br /> ��F CJS <br /> Joe W Neely, RG <br /> Senior Project Geologist <br /> RG 6927 No 6427 ° <br /> Attachments OF <br /> Figure <br /> Figure 1 Site Vicinity Map <br /> Figure 2 Depth to Groundwater/Chemical Concentration Map <br /> Appendix A Blaine Tech Services Inc - Groundwater Monitoring Report <br /> cc Ms Karen Petryna, Equiva Services LLC <br /> . Mr Marty Hartzell, Regional Water Quality Control Board <br /> 1359 2 <br />