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C A M B R I A <br /> oxygenates Cambria also recommends installing one deep groundwater monitoring well onsite <br /> and two additional shallow groundwater monitoring wells offsite These wells are formally <br /> proposed in the work plan below As discussed above, Shell will continue to pursue access to <br /> adjacent properties in order to install proposed wells MW-8 through MW-10 <br /> SITE INVESTIGATION WORK PLAN <br /> Technical Rationale for Proposed Scope of Work <br /> • Previous investigation findings detected MTBE beneath the site in groundwater as deep as <br /> 100 fbg <br /> • Groundwater data from well MW-7 indicate that MTBE is not delineated in groundwater <br /> southeast of the site <br /> • Cambria proposes one roundwater monitoring well screened in the sand layer identified at <br /> approximately 90 to 100 fbg in the CPT borings drilled during October 2001 <br /> • • Cambria also proposes two groundwater monitoring wells on the property east of the subject <br /> site <br /> Work Tasks <br /> Permits- Appropriate permits for drilling will be obtained from SJCEHD Shell will obtain an <br /> access agreement for the property east of the subject site <br /> Site Safety Plan. Cambria will prepare a Site Safety Plan for field work <br /> Utility Clearance: Cambria will mark proposed drilling locations and the locations will be <br /> cleared through Underground Service Alert prior to drilling <br /> Site Investigation: Three groundwater monitoring wel1-7 <br /> -11 through MW-13 are proposed <br /> at the locations shown on Figure 4 Well MW-11 andare propo a property east <br /> of the subject site and MW-13 is proposed between the dispensers and the UST's The <br /> exploratory borings will be drilled using hollow-stem auger equipment and the borings will be <br /> converted to groundwater monitoring wells <br /> 0955 9 <br />