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} <br /> 0 CAMBRIA <br /> Cambria received the RWQCB's December 11, 2000 correspondence requesting additional <br /> investigation at the site and submittal of a report of findings by February 12, 2001 In <br /> response, Cambria submitted a Site Investigation Work Plan dated December 18, 2000 As <br /> discussed in this work plan, we renamed well MW-5 as MW-5A because we proposed a deeper <br /> well in the same location Cambria is currently awaiting approval of the work plan from <br /> SJCPHS/EHD <br /> ANTICIPATED FIRST QUARTER 2001 ACTIVITIES <br /> Cambria will install proposed well MW-7 as soon as possible after property access is granted <br /> to Equiva After this well is installed, Blaine will develop wells MW-7 and MW-8, gauge and <br /> sample wells MW-5A through MW-8, and tabulate the data <br /> Once Cambria receives approval of our December 18, 2000 work plan and Equiva receives a <br /> fully executed access agreement, we will implement the proposed field work When this <br /> phase of work is complete, Blaine will return to the site, develop and sample the deep well(s), <br /> and coordinate the quarterly sampling event with the Chevron site <br /> • RECOMMENDATIONS <br /> Methyl tertiary butyl ether (MTBE) has not been reported by EPA Method 8020 (modified) <br /> in groundwater beneath the site during the third and fourth quarters of 2000 These results <br /> indicate that the MTBE initially detected (by EPA Methods 8020 and 8260) in well MW-5A <br /> may have resulted from drilling activities It is possible that, in the course of drilling the well <br /> boring, a limited amount of MTBE impacted soil was brought into contact with groundwater <br /> If this is the case, we would expect the MTBE concentrations in this well to rapidly decrease <br /> to non-detect levels To establish whether MTBE has impacted the groundwater, samples <br /> from all wells will be analyzed for MTBE by EPA Method 8260 <br /> 1346 2 <br />