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0 C*bria <br /> Table 4 Summary of Feasibility Test Data and Hydrocarbon Mass Removed-JIMCO Truck Plaza 1022 Frontage Road,Ripon California <br /> lone Elapsed Flowratc(cfrn) Wellhead Vacuum Inflaence(in.WC) HC Concentrations(ppmv) <br /> TIMM Air Infection Vnenam Field TPHS Mass <br /> (Hours) AS SVE Pressure(psi) (uL WC) MW 1 MW 1 MW 7 MW 9 MW 10 Readings TPHg Benzene MTBE Removal Rate TPM Mass <br /> Monba) (Nday) Removed(#) <br /> 9/9/2005 Air Sparge Test on AS 1 <br /> 1405 575 Startup SVE system,constant vacuum at 130 in WC 626 <br /> 1407 578 148 1 130 2976 004 <br /> 1411 585 300 690 <br /> Inddate Air Sparge Step Test#1 Set air sparge pressure at 6 9 psi drops to 4 8 psi <br /> 1420 6 00 320 600 <br /> 1424 607 375 510 <br /> 1425 608 131 125 656 2760 035 <br /> 1427 612 380 500 <br /> 1452 653 400 490 125 790 3324 062 <br /> 1500 667 410 480 135 <br /> 1516 693 78 _ <br /> 1526 710 410 145 480 132 3679 087 <br /> 1531 7 18 49 824 3838 013 <br /> 1537 728 12 <br /> 1544 740 410 480 130 <br /> 1551 747 325 <br /> 1557 757 1 1 <br /> 1600 762 149 127 831 39 77 072 <br /> 1608 775 1 420 470 <br /> Step test#2 Increase air sparge pressure to 7 0 psi <br /> 16 11 780 700 700 <br /> 16 15 7 87 145 130 799 3721 039 <br /> 16 18 792 733 3414 007 <br /> 1627 807 85 <br /> 16 35 820 720 150 650 130 - 3531 042 <br /> 1642 832 475 809 3898 019 <br /> 1645 837 30 <br /> 1655 8 53 1 1 <br /> 1700 862 730 650 <br /> 17 17 8 90 1 1 <br /> 1720 895 155 117 786 3913 103 <br /> 1725 903 590 ND ND 2937 010 <br /> 1738 925 750 650 112 52 <br /> 1740 928 158 2994 031 <br /> 1745 937 8 80 r <br /> 18 00 962 156 111 730 2956 041 <br /> TOTAL= 1109 d� <br /> b <br /> Abbreviations and Notes <br /> efm=Cubic feet per minute TPHg=Total petroleum hydrocarbons as gasoline by modified EPA Method 8015 <br /> AS=Air spargmg B enzene Tolune Ethylbenzene and Xylenes by EPA Method 8020 <br /> SVE=Soil vapor extraction MTBE=Methyl tett butyl ether by EPA Method 8020 <br /> psi=pounds per square mch XX=Values calculated using field data are ttalicized <br /> in W C =inches water column ND=not detected at or above the laboratory reporting lumt <br /> HC=Hvdrocarbons �Not measured/Not analyzed I Not calculated <br /> ppmvTel..&5 #=Pounds Page 2 of 2 <br />