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*Iof1 <br /> Table 4 ; <br /> Dual-Phase Extraction System Estimated Mass Removal <br /> Tosco Service Station No 11193 <br /> 3202 West Hammer Lane <br /> Stockton,CA <br /> TPH as Gasoline Benzene MtBE <br /> Pounds Cumulative Pounds Cumulative Pounds Cumulative <br /> Hours Average Influent Removed pounds Influent Removed pounds Influent Removed pounds <br /> Test Date of Extracted now Rate Concentration Daily Removed Concentration During Test Removed Concentration During Test Removed <br /> Well ID SVE test (hours) (scfm) (ppmv) (Ibs) (Ibs) (ppmv) (Ibs) (lbs) (ppmv) (Ibs) (Ibs) <br /> MWA R 11/26/01 3 218 40 0 04 004 <016 0 000 42 004 004 <br /> MW-2R 11/26/01 3 11 95 960 057 062 1700 001 001 130 007 011 <br /> VW-1 11/26/01 2 1359 <560 000 062 <26 000 001 1,200 047 058 <br /> MW-1 R,MW-2R, 11/27/01 23 2600 300 299 361 530 004 005 200 1 74 232 <br /> VW-1 <br /> MW-1 R,MW-2R, 11/28/01 198 2326 160 123 484 480 003 008 97 065 2 96 <br /> VW-1 <br /> MW-1 R,MW-2R, 11/29/01 248 2544 230 242 725 850 007 015 180 165 461 <br /> VW-1 <br /> MW-1 R,MW-2R, 11/30/01 245 2109 100 086 811 370 002 017 86 0 65 526 <br /> VW-1 <br /> TOTAL HOURS EXTRACTED 100 <br /> TOTAL POUNDS REMOVED <br /> 1111 <br /> Oil 326 <br /> Ex lanatlons <br /> scfm=standard cubic feet per minute <br /> ppmv=parts per million per volume <br /> MtBE=Methyl-teriary butyl ether <br /> Ibs. =pounds <br /> TPH=Total Petroleum Hydrocarbons <br /> Note <br /> Denser of benzene=7 3 pounds per gallon <br /> Density of gasoline=61 pounds per gallon <br /> Density of MtBE=6 2 pounds per gallon <br /> Values reported as non-detect were assumed to be the detection limit for calculation purposes <br /> Anticipated mass removal calculations based on 20 scfm per well <br /> 077 43808 416/Tosco/DPE test table2 <br /> 3/7/02 <br />