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TABLE 1 <br /> SOIL GAS WELL SAMPLING INTERVALS <br /> FOOTHILL SANITARY LANDFILL <br /> Well Well Location Well Bottom Shallow Probe Intermediate Probe Deep Probe <br /> No Existing Grade Sampling Sampling Half-Depth of Sampling Bottom of Refuse <br /> Elev Elev Interval Elev Interval Elev Refuse Elev Interval Elev Elev <br /> SG-119 224 160 218 to 214 209 to 190 223 185 to 160 222 <br /> SG-120 252 160 246 to 242 237 to 204 237 199 to 160 222 <br /> SG-121 246 160 240 to 236 231 to 201 234 196 to 160 222 <br /> SG-1221 229 160 223 to 219 214 to 193 226 188 to 160 222 <br /> SG-123 228 160 222 to 218 213 to 192 225 187 to 160 222 <br /> SG-124 247 160 241 to 237 232 to 202 235 197 to 160 222 <br /> SG-125 245 160 239 to 235 230 to 201 234 196 to 160 222 <br /> * Existing monitoring well SG-12 was installed in accordance with the regulations in force at the time of installation (June 2004), <br /> which required a drill depth to the refuse within 1,000 feet of the well. The design refuse depth elevation within 1000 feet of this well <br /> is 222 ft. MSL and the well was drilled to an elevation of 220 ft. MSL. <br /> Landfill Gas Monitoring Plan <br /> NA1Foothill\LFGperimMonit\GasMonitPlan-Forms\ San Joaquin County <br /> FH-Soil Gas Well Sampling Intv.xis 2 Public Works/Solid Waste <br />