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Table 21
<br /> Soil Vapor Extraction System-Operating Data
<br /> Parcel 2A-L&M OU
<br /> 666 West Weber Avenue, Stockton, CA
<br /> Flow 1 FID FID VOCs Vapor
<br /> Hourmeter Well Field System Flow Rate VOC VOC (Hexane) Control
<br /> Reading Temperature Vacuum Rate (scfm) Influent Effluent Removed Efficiency
<br /> Date Notes (hours) (°F) (inHg) (acfm) [1] 1 (ppmv) I (ppmv) I (Ib/day) [2] 1 (%)
<br /> 5/31/2007 b 14 70 7 -- 66 10,000+ 2.0 211.5 99.98%
<br /> 6/19/2007 c 215 70 4.5 -- 330 50 0.2 318.8 100%
<br /> 7/5/2007 399.4 93.9 4.1 567 468 164 0.0 13.7 100%
<br /> 7/30/2007 929.7 76.2 3.7 261 226 3 0.0 9.3 100%
<br /> 8/7/2007 1,012 -- -- -- 115 1,700 0 46.5 100%
<br /> 9/28/2007 1,551.8 -- -- -- 315 1,200 0.0 99.9 100%
<br /> 10/23/2007 d 2,066.7 72.7 12.4 146 85 1,375 0.0 82.6 100%
<br /> 11/12/2007 2,452.2 67.0 9.6 130 89 1,775 0.0 43.9 100%
<br /> 12/6/2007 3,033.9 66.1 10.3 130 86 576 0.0 32.9 100%
<br /> 1/23/2008 3,216.0 66.5 12 130 78 2,800 0.0 44.4 100%
<br /> 2/12/2008 3,496.3 65.9 12 130 78 1,029 0.0 48.1 100%
<br /> 3/3/2008 3,942.0 68.7 12 130 78 161 0.0 14.9 100%
<br /> 4/16/2008 4,075.4 68.0 10 230 154 4,719.0 0.2 90.6 100%
<br /> 5/12/2008 4,697.3 70.2 10 230 153 150.5 0.0 119.7 100%
<br /> 6/4/2008 5,017.2 70.2 10 235 156 557.4 0.0 17.6 100%
<br /> 7/2/2008 5,681.7 73.9 10 237 157 115.7 0.0 16.9 100%
<br /> 8/11/2008 6,321.7 175.5 10 230 128 175.5 0.0 6.6 100%
<br /> 9/10/2008 6,522.2 72.3 10 235 156 269.2 0.0 10.1 100%
<br /> 10/9/2008 7,172.7 71.1 10 235 156 112.7 0.0 9.5 100%
<br /> 11/11/2008 7,898.6 70.0 9 390 273 799.5 0.0 31.3 100%
<br /> 12/17/2008 8,437.5 67.1 8 370 273 30.5 0.0 36.3 100%
<br /> 1/14/2009 9,134.7 68.3 9 390 274 112.7 0.0 6.3 100%
<br /> 2/11/2009 9,764.5 67.1 9 390 274 69.9 0.0 8.0 100%
<br /> 3/11/2009 10,236.8 68.7 9 390 273 14.6 0.0 3.7 100%
<br /> 4/16/2009 11,102.2 70.8 9 390 272 37.1 0.0 2.3 100%
<br /> 5/8/2009 11,485.8 70.9 9 390 272 91.2 0.0 5.6 100%
<br /> 6/8/2009 12,061.7 70.0 9 390 273 287.5 0.0 16.5 100%
<br /> 7/9/2009 12,766.3 72.0 9 378 263 98.2 0.0 16.6 100%
<br /> 8/11/2009 13,480.0 72.3 9 390 272 40.2 0.0 5.9 100%
<br /> 9/8/2009 14,142.2 79.8 9 390 268 15.2 0.0 2.4 100%
<br /> 10/15/2009 14,976.5 75.7 9 390 270 54.6 0.0 3.0 100%
<br /> 11/10/2009 15,599.5 71.3 9 390 272 45.3 0.0 4.3 100%
<br /> 12/9/2009 16,296.3 66.1 8 367 271 110.5 0.0 6.8 100%
<br /> 1/12/2010 17,108.7 69.9 9 390 273 19.3 0.0 5.7 100%
<br /> 2/4/2010 17,631.0 69.9 9 390 273 29.7 0.0 2.1 100%
<br /> 3/2/2010 18,254.0 69.9 9 390 273 32.7 0.0 2.7 100%
<br /> 4/7/2010 19,028.6 69.7 9 390 273 198.2 0.0 10.1 100%
<br /> 5/12/2010 19,686.2 70.7 9 390 272 62.7 0.0 11.4 100%
<br /> 6/10/2010 20,383.2 67.2 5.1 228 190 566.0 0.0 23.3 100%
<br /> 7/12/2010 21,149.2 80.1 5.0 193 157 138.7 0.0 19.6 100%
<br /> 8/4/2010 21,703.9 79.9 6.0 148 116 152.7 0.0 6.4 100%
<br /> 9/15/2010 22,327.8 71.2 4.5 209 177 3,588.0 0.0 87.9 100%
<br /> 10/7/2010 22,590.5 74.9 4.8 219 182 2,411.0 0.0 172.8 100%
<br /> 11/14/2010 23,550.7 70.7 4.0 207 179 117.2 0.0 73.2 100%
<br /> 12/14/2010 24,221.1 59.9 5.0 97 82 461.7 0.0 12.1 100%
<br /> REPORTING PERIOD: September 15,2010 to December 14, 2010
<br /> Period Operation (hours): 1,893.3
<br /> Period Operational (%): 88%
<br /> Historical%Operational 78%
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<br /> 2010\4Q10\Parcel 2A OM Tables 4Q10.xlsx Page 1 of 2
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