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RESULTS OF VENT--ROI ANALYSIS <br /> GAS EXTRACTION RATE CALCULATION FOR UNSEALED SOIL VAPOR EXTRACTION SYSTEM <br /> tANNA PRO site in STOCKTON, CA <br />' Fresh Gasoline contaminant mixture, volatile, non-biodegradable) <br /> log10 (MW P*) = 2 . 27 -- 3 . 97 am <br /> Temperature Constant = 1904 deg K <br /> Liquid Density - . 7 g/cc <br /> I Vertical wells in 6. 25 inch boreholes, notextending to groundwater, <br /> screened from 35 to 45 feet <br /> 100 by 100 foot plume requires 22 wells, operated simultaneously, <br /> spaced no more than 22 . 6 feet apart in a 5 by 5 array <br />' Thickness of Vented Soil Interval = 10 feet <br /> Sloe of 1og10 (P) vs Distance from Pilot Test 092293 per ft <br /> SoypGas Tem erature = 50 deg F <br /> Interwell ENective Radius = 13 feet <br />' Single Well Effective Radius = 15.7 feet <br /> Desired Time to Cleanup = 1095 days <br /> Cleanup Goal = 80 % removal <br />'FLOW REQUIRED FOR SINGLE WELL AT THESE CONDITIONS = 15 scfm <br /> APPLIED VACUUM REQUIRED TO ACHIEVE THIS FLOW = 148. 5 in. water column <br />'TOTAL FLOW REQUIRED FOR MULTIWELL SYSTEM = 243 . 07 scfm <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br />