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French Camp Landfill TL A68103.01 <br /> April 18, 19950, Page 2 <br /> C? P <br /> CJMMIt © Sf)lfl C s- a <br /> n ... carter.:; �r..d::.. cart+ �,:.;:... E ..:.0 r ;::: t.... <br /> SGP1 0 1 0 1 <br /> SGP2 <br /> 10 105` '>` 60 <br /> SGP3 0 0 0 0 <br /> SGP4 20 13 48 70 <br /> SGP5 12 7 38 0 <br /> SGP6 17 9 19 0 <br /> SGPT 32 171 <br /> X82 <br /> SGP8 90 9 6 72 <br /> Scale House NA 0 0 NA <br /> Cargo Box 1 NA 0 0 NA <br /> Security House NA 0 0 0 <br /> Notes: 100% LEL = 5% Methane <br /> NA =No monitoring results available <br /> 3.0 FIELD PROCEDURES <br /> Field activities are summarized in the following subsections. <br /> 3.1 Soil Gas Monitoring. Soil gas concentrations were measured using a Gastechtor Model No. <br /> 1314SMPN calibrated for methane. Each gas probe was purged for five minutes. After the five <br /> minute purge time, oxygen and lower explosive limit(LEL)percentages were recorded. Methane <br /> gas concentrations measured in sites tures were recorded when the readings stabilized. <br /> Methane gas monitoring results for th secdnd quarteof 1995 are summarized in Table 2. <br />