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I- '-,. 0 0 <br />Mr. Robert McClellon -2- <br />LANDFILL GAS MONITORING PLAN, FOOTHILL SANITARY LANDFILL <br />MSL and the well was drilled to an elevation of 220 ft. MSL. Therefore, we ask that this well <br />be accepted. <br />❑ Depth of shallow probes are indicated. Proposed wells will have shallow sampling intervals <br />extending from 5 to 10 feet from the surface. <br />❑ Depth of intermediate probes are indicated. For most wells, the intermediate sampling <br />intervals are at or within 5 feet of half the final depth of the waste (see discussion below). <br />❑ Depth of deep probes are indicated. Proposed wells are drilled to within 5 feet of the <br />deepest waste level at completion of the landfill, or deeper. <br />❑ All probes extend above the low seasonal water table. <br />If you have any questions, please contact Joyesh Chandra, Engineer II at (209) 468-3066 or me at <br />(209) 468-8504. <br />Sincerely, <br />W. MICHAEL CARROLL, PE <br />Senior Civil Engineer <br />WMC:kb <br />N:\1 Foothill\LFGperimMonit\GasMonitPlan-Forms\RMcClellonO4-FHGasPlan.doc <br />Attachment <br />c: (via email): Gino Yetka, Closure and Technical Services, CIWMB <br />Todd Del Frate, PG, Central Valley Regional Water Quality Control Board <br />LA 10631 <br />LA 31029 <br />