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Configuration Figure 1 Schematic of Soil Gas Probe <br /> GAS TIGHT VAULT BOX <br /> VALVE OR CAP IN CONCRETE <br /> •� o <br /> y, V <br /> co oer <br /> VARIABLE �f <br /> DEPTH <br /> (PROJECT- I <br /> 1/8- OR 1/4-INCH <br /> SPECIFIC) I -/ INERT TUBING <br /> I <br /> 1.0' TYP. <br /> GAS PERMEABLE <br /> TYP. PROBE TIP <br /> VARIABLE j <br /> INTERVAL HYDRATED <br /> (PROJECT- GRANULAR <br /> / BENTONITE <br /> SPECIFIC) <br /> �.. w DRY GRANULAR <br /> 1 <br /> BENTONITE <br /> 1 <br /> 0.5'-I.0' 1 J CLEAN SAND <br /> TL-� PACK <br /> YP. <br />