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C A M B R I A Ron Rowe <br /> December 22, 1999 <br /> Recommendation It appears that the ethanol, ethylene dibronude, and HVOCs have not <br /> detected significant HVOC s other than MTBE Cambria recommends quarterly analyses of <br /> ground water for TPI-Ig using EPA Method 8015 modified and for BTEX and MTBE using EPA <br /> Method 8020 The highest MTBE concentration will be confirmed using EPA Method 8260 <br /> Cambria proposes annual analysis of all other oxygenates <br /> CLOSING <br /> We appreciate the opportunity to work with you on this project Please call Barbara Jakub at <br /> (510)420-3309 if you have any questions or continents <br /> Sincerely, <br /> Cambria Environmental Technology, Inc <br /> Barbara J Jakub �',AED G co` <br /> Project Geologist w��S Sp,S Q& 0G, <br /> NO 6717 <br /> Ailsa S Le May, R G ��9TFOF CA0(3 <br /> Senior Geologist <br /> Figure 1 - Ground Water Elevation Contour Map <br /> Table 1 - Ground Water Analytical Data-Halogentated Volatile Organic Compounds <br /> Attachment A -Blaine Ground Water Monitoring Report and Field Notes <br /> cc Karen Petryna,Equiva Services LLC, P O Box 7869, Burbank, California 91501-7869 <br /> g Vmnt10711gm14g99qm doe <br /> 2 <br />