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TABLE 1 <br /> GAS PROBE MONITORING DATA SHEET <br /> (continued) <br /> (GW) Probe CH4 % 02 % Pressure <br /> S flooded flooded 0 <br /> 9 I 0 1 . 67 <br /> D 0 1 .98 <br /> S 0 17 0 <br /> 10 I 20 1 1.00 <br /> D 45 0 1.31 <br /> S 0 10 -.09 <br /> 11 I 40 0 1. 14 <br /> D 58 0 1.23 <br /> S flooded flooded flooded <br /> 12 I 60 0 1.34 <br /> D 70 0 1.34 <br /> S = Shallow Probe <br /> I = Intermediate Probe <br /> D = Deep Probe <br /> STRUCTURE MONITORING <br /> On December 15, 1992, San Joaquin County performed the first <br /> quarterly labor camp monitoring event. Present during monitoring <br /> was Robert Reed of the County Housing Authority. <br /> The equipment used was a Gas Tech Landfill Monitor equipped with <br /> parts per million (ppm) , Lower Explosive Limit (5%) , and 100% gas <br />