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Table 3. <br /> <br />RF~BULTS OF SOIL GAS SAMPLING ON AUGUST 24, 1980. <br /> <br />Location <br /> <br /> Combustible 'Methane (%) <br />~)epth Gas (%) Concentration <br /> <br />1 3 ft. <br />2 3 ft. <br />2a 3 ft. <br />3 3ft. <br />4 3ft. <br />5 3 ft. <br />6 lft. <br />7 3 ft. <br />8 3 ft. <br />8a 3ft. <br />9 2ft. <br />10 3 ft. <br />11 3 ft. <br />12 3 ft. <br />13 3 ft. <br />14 3 ft. <br />15 2 ft. <br />1Sa 2 ft. <br />16 3 ft. <br />17 3 ft. <br />18 3 ft. <br />19 3 :ft. <br />20 3 ft. <br /> <br />>5 <br />>5 <br /> <br />4.5 <br />ND* <br />ND* <br />ND* <br />>5 <br />>5 <br /> <br /> ND* <br />>5 <br />>5 <br /> <br /> ND* <br /> ND* <br /> ND* <br /> ND* <br /> ND* <br /> ND* <br /> ND* <br /> ND* <br /> ND* <br /> ND* <br /> ND* <br /> ND* <br /> <br />42 38 4 ND* <br />18 40 3 ND* <br /> <br />0.5 <br /> <br />0.5 <br /> <br />4 <br /> <br />14 <br />18~ <br />18 <br /> <br />2.5 <br />2 <br />10 <br />ND* <br /> <br />ND* <br />15 <br /> <br />19 <br />20 <br />17 <br />16 <br /> <br /> 6 <br />18 <br />20 <br /> <br />*ND = Not detectable <br /> <br /> <br />