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i • i <br /> Table 2 <br /> Two-Phase Extraction Operational Data <br /> Tidewater Stockton <br /> 666 West Weber Avenue <br /> Stockton,California <br /> GWET SVE Temp Wellfield Wellfield System System Slurp Weli 1.1/2" <br /> Totalizer Hour burner/ Vapor FID (Blower) Manifold Tube Case Case I Stinger <br /> Reading Meter stack Flow Rate Reading Vacuum <br /> Vacuum Vacuum Vacuum Tube Depth <br /> Date (gal) (hours) (�F) (scfm) (ppmv) ("Hg) ("Hg) ("H2O) ("H2O) <br /> (ft bTOC) Notes/Comments <br /> GWE-1 is the Extraction Well <br /> 11/17/1010:30 374,795.0 31796.0 -- - __ _ _ __ _- - 13 Start test <br /> 11/17/10 11:16 -- 31796.2 1610/1550 113.0 25,000+F/O 9 4.7 10.1 0.7 0.07 13 Sampled GWE-INF-fA <br /> 11/17/10 12:10 374,795.0 31797.1 1670/1617 107.1 50,000+F/O 10 4.5 10.2 0.8 0.08 13 <br /> 11/17/1012:30 -- -- 1655/1610 110.7 40,000+F/O 10 4.6 10.5 0.9 0.09 13 <br /> 11/17/10 13:00 374,795.0 31798.4 1500/1495 174.0 10,000+F/O 14 10.1 22.7 1.2 0.05 13 <br /> 11/17/10 14:01 374,795.0 - 1590/1580 154.7 7,000+F/O 14 10.9 22.9 1.2 0.05 13 <br /> 11/17/10 15:00 - - .1580/1575 149.2 5,000+F/O 14 10.9 23.1 1.2 0.05 13 <br /> 11/18/108:15 - -- 1475/1450 135.1 2,900.0 15 11.0 25.1 1.3 0.05 13 <br /> 11/18/10 8:30 374,817.5 -- 1477/1451 136.1 2,872.0 15 11.0 25.0 1.3 0.05 13 <br /> 11/18/10 9:00 374,817.5 -- 1476/1452 136.0 3,185.0 15 11 25.0 1.3 0.05 13 Sampled GWE-INF-18,end test. <br /> 11/19/10 9:15 374,965.0 - 1488/1451 98.7 367.2 24 - -- - - 15 Moved back from GWE-2 to dewater.Note the <br /> 11/19/10 9:30 374,965.0 -- 1471/1432 114.2 333.1 22 -- - - -- 16-17 reduced FID readings. <br /> TOTAL 22.50 22.8 - _- _ _ High vapor flow and very little water yeild.Low <br /> gallons hours casing vacuum precluded higher water yield due <br /> 10.02 gpm to high FID vapor concentrations. <br /> GWE-2 is the Extraction Well <br /> 11/18/10 9:15 374,935.0 - 1477/1437 78.0 890.0 25 24 85.9 15.7 0.18 13 Start test <br /> 11/18/10 9:30 - - 1475/1420 119.2 1206.0 22 21 -- -- - - Sampled INF-GWE-2A <br /> 11/18/1012:45 -- -- 1479/1439 148.9 677.5 17 16 40.7 16.2 0.40 13 <br /> 11/18/10 13:00 - -- 1482/1457 140.2 711.5 18 17 42.5 16.0 0.38 17 Dropped slurp tube to bottom,dewatered trench, <br /> 11/18/10 13:30 374,965.0 -- 1480/1451 144.5 843.7 17 16 41.0 16.2 0.40 17 very little groundwater flow now. <br /> 11/18/10 14:00 374,965.0 - 1477/1444 143.1 811.0 17 16 41.1 16.1 0.39 17 <br /> 11/19/10 8:07 374,965.0 - 1480/1440 140.7 295.0 17 16 41.3 16.3 0.39 17 <br /> 11/19/10 8:15 - _ _ _ __ _ _ __ _ _ __ Sampled INF-GWE-28,end test. <br /> TOTAL 23.0 - _ _ _ _ - High vapor flow and very little water yield. <br /> gallons hours Moved extraction back to GWE-1. <br /> 10.11 gpm <br /> Notes: <br /> Abbreviations: <br /> FID=flame ionization detector SVE=soil vapor extraction <br /> F/O=flame out,FID meter lost flame due to lack of oxygen in vapor stream "Hg=inches of mercury column gauge vacuum pressure <br /> ft =feet "H2O=inches of water column gauge vacuum pressure <br /> it bTOC=feel below lop of well casing my <br /> pp =parts per million by volume <br /> gal=gallon or gallons scfm =standard cubic feet per minute <br /> gpm =gallons per minute -= not measured or analyzed <br /> GW ET =groundwater extraction treatment <br /> Page 1 of 1 <br />