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STOCKTON PUBLIC WORKS ID :209-937-8277 AUG 25 '94 11 :46 No .018 P .03 <br /> 0 <br /> it of Stockton ® Austin Road Landfill TL 394-0027--04 <br /> July x , 19 Page 2 <br /> 2 . 1 SoilGas Monitorlaq. Soil gd5 concentrations were measured <br /> using' a stepo.No. 1314SMPN calibrated for methane. Earp <br /> gas probe was purged for five minutes. After the five minute purge <br /> time, oxygen and lower exPlosivO limit (LEL) percentages were <br /> recorded. Methane gas concentrations measured in site structures <br /> were recorded when the readings stabilized. Methane gas monitoring <br /> results are presented in Table I. <br /> TABLE I <br /> SUMMARY OF INITIAL SOIL GAS MONITORXNG RESULTS <br /> ULTS <br /> PROBE PERCENT OXYGEN PERCENT LEL <br /> 7 .3 0 <br /> SGP2 13. 1 0 <br /> SGP3 7 .5 0 <br /> SGF4 19 . 1 0 <br /> SGP5 16 .4 0 <br /> SGP6 13 .3 <br /> SGF7 19 .5 0 <br /> SGP8 16 . 1 <br /> SGP9 <br /> SGPI O 9.7 0 <br /> 5GP11 3.3 <br /> S C71P 12 211 2 <br /> Scale House 20,9 <br /> Cargo to .20 - 9 0 <br /> Cargo Box2 20.9 0 <br /> r. <br /> o Box3 20.9 -0 <br /> Notes: 100% LEL - 5% methane <br />