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Table 2 <br />MAJOR GASES IN LANDFILL WELLS <br />Sample <br />Number <br />Sample <br />Date <br />Sample <br />Time <br />Gas <br />Oxygen <br />Concentration <br />Nitrogen <br />(percent by Volume) <br />Carbon Dioxide <br />Methanel <br />W-1 <br />2/25/88 <br />12:45 <br />ND2 <br />0.5 <br />24 <br />76 (65) <br />W-2 <br />2/25/88 <br />13:26 <br />0.06 <br />1.6 <br />26 <br />72 (62) <br />W-3 <br />2/26/88 <br />10:05 <br />ND <br />1.7 <br />31 <br />68 (57) <br />W-4 <br />2/26/88 <br />10:45 <br />1.5 <br />5.9 <br />30 <br />63 (60) <br />W-5 <br />2/26/88 <br />11:27 <br />0.29 <br />3.4 <br />28 <br />69 (62) <br />Laboratory <br />0.02 <br />0.5 <br />0.2 <br />0.002 <br />Detection Limit <br />1. Field -measured results using GasTech meter shown in parentheses. <br />2. ND = not detected <br />Am <br />qW <br />PJ9 9390405.00D 2-6 Rev. 0 09/07/88 <br />