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PEABODY COAL COMPANY - WESTERN DIVISION <br />MONITOR WELL LITHOLOGIC LOG <br />Mine: Yoast <br />Monitor Well Name: <br />Geologic Unit Monitored: Wa ge ver ur en <br />Ground Surface Elevation: 7329 (ft-amsi) <br />Location: Mine Coordinates N. "i723~ E <br />(S.), (W} 7174 <br />N. <br />_~, fr, T S., R W., S <br />Drilling Date: Start <br />Finish 7/16/80 <br />Drilled By: Arguello <br />Logged By: USGS <br />Geophysics y Logged By: <br />Total Depth Drilled: ft <br />FORMATION RECORD <br />Page 1 /~ <br />Depth ft <br />From_ To Litho ogic description o unconso idated and <br />consolidated units and water horizons <br />0.0 21.0 Medium dark brown silty sandy clay mixed w/ white and ye ow <br />~ ine-graine son s one <br />21.0 , 29.5 White and yellow sandstone intercalated with dark gray shale (5%) <br />29.5 I 30.2 Carbonaceous shale <br />30.2 ~ 70.0 Gra ish white sandstone interstratified w/ gray shale (10%) <br />70.0 ~ 70.3 Carbonaceous shale <br />70.3 ~ 78.3 Coal, Wad a seam <br />78.3 ~ 79.0 Carbonaceous shale <br />79.0 ~ 83.3 Gray shale <br />83.3 ~ 86.8 Coal <br />86.8 ~ 87.1 Carbonaceous shale <br />87.1 ~ 129.3 Sandstone with interbedded grey shale <br />129.3 ~ 129.9 Coal <br />124.9 ~ 136.0 Sandstone intercalated with gray shale (50Y) <br />136.0 137.3 Coal <br />137.3 ~ 152:1 Sandstone interstratified with shale <br />152.1 ~ T.D. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />7-1-56 <br />