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Surface Vault Box <br /> Surface grade <br /> Concrete <br /> Capped or valued off(Swabelok shut off valve) <br /> 1 <br /> One quarter inch diameter Teflon or Nylaflow <br /> tubing with stickup for sampling <br /> 5 feet k Hydrated Bentonite t • <br /> Dry Bentonite Spacer <br /> Filter pack#3 or 2/12 sand approx. 12 inches <br /> thick over probe tip <br /> 12" <br /> Dedicated sampling tip <br /> (screened stainless steel or ceramic) <br /> Borehole,Approx.3 in.diameter if hand augered. <br /> Notes: <br /> Temporary sampling wells to be installed and removed <br /> under approved SJC EHD permits following all sampling. <br /> All temporary sampling wells anticipated to 5 feet deep. <br /> Proposed Temporary Soil <br /> Vapor Sample Point <br /> Well Detail Schematic Proj.No.4509 <br /> Scale:none <br /> Delta Disposal Date:Jan.2011 <br /> Wright Environmental Services, Inc. 99 6th Street <br /> Tracy, CA Tracy,CA Figure 2 <br />