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An Analysis of Passive Soil Vapor Extraction Wells

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WSRC-TR-2000-00182<br />

MetLab Treatability Study: June 2000 Update<br />

MLBB-020 GC MLBB-024 GC<br />

Date PCE TCE CO2 FR113 PCE TCE FR113 PCE TCE CO2 FR113 PCE TCE FR113<br />

10/14/97 4.02 3.68 1075<br />

5/8/98 3.66 1.19 14100<br />

6/30/98 2.28 1.05 15500<br />

8/10/98 1.95 0.96 14200<br />

9/8/98 2.37 0.86 14900<br />

11/24/98 1.30 0.00 11700<br />

12/8/98 0.73 1.67 2300<br />

12/16/98 1.64 0.00 10900<br />

12/29/98 1.72 0.00 15100<br />

2/2/99 1.58 0.00 13800<br />

3/9/99<br />

3/25/99<br />

5/24/99 1.77 0.72 21700 0.62 0.38 0.69<br />

6/14/99<br />

6/15/99<br />

6/16/99<br />

6/17/99 3.93 1.19 20200 0.64 0.36 0.59<br />

7/7/99<br />

7/19/99 3.84 1.16 20700 0.66 0.40 0.72<br />

8/26/99<br />

8/27/99 3.50 1.03 19800 0.62 nd nd<br />

9/21/99<br />

11/2/99<br />

1/4/00 1.32 0.48 19600 0.00<br />

2/11/00 0.09 1.97 19700 0.00<br />

3/1/00 1.54 2.71 20000 0.47<br />

3/27/00 0.87 2.41 20300 0.79 2.77 4.67 11900 0.47<br />

All concentrations in ppmv and normalized by CO 2 levels.<br />

Shaded values are from the B&K. Non-shaded values are from gas chromatography analysis<br />

nd = not detected<br />

italicized values were not used – low CO 2 indicates non-representative sample<br />

31

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