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1 <br /> Checklist: Can SVE Be Used At This Site? <br /> This checklist can help you to evaluate the completeness of the CAF <br /> and to identify areas that require closer scrutiny. As you go through the <br /> CAP, answer the following questions If the answer to several questions <br /> t <br /> is no, you will want to request additional information to determine if SVE <br /> will accomplish the cleanup goals at the site <br /> 1. Factors That Contribute To Permeability Of Soil <br /> ' Yes No <br /> f� L3Is the intrinsic permeability greater than 10-9 cm2? ��*-�'•6'� � �"r'`�,,.•J <br /> ❑ is the depth to groundwater greater than 3 feet?' �- <br /> / <br /> ' ® ❑ Are site soils generally dry`? 9" <br /> jS <br /> t2. Factors That Contribute To Constituent Volatility <br /> Yes No <br /> l� ❑ Is the contaminant vapor pressure greater than 0.5 mm Hg9 <br /> tL( ❑ If the contaminant vapor pressure is not greater than 0 5 <br /> mm. Hg, is some type of enhancement (e.g , heated air <br /> infection) proposed to increase volatility? <br /> C� ❑ Are the boiling points of the contaminant constituents less <br /> than 300°C? <br /> CEJ ❑ Is the Henry's law constant for the contaminant greater <br /> ' than 100 atm? <br /> 1 <br /> ' 1 If no, flus parameter alone may not negate the use of SVE However, provisions for <br /> use of a surface seal, construction of horizontal wells, or for lowering the water table <br /> should be incorporated into the CAP <br /> October 1994 II-S1 <br />