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;Aid-Continent has defined the ground ;water <br /> characteristics associated with Coal Basin through the use <br /> ' v <br /> of shallow alluvial observation 'Jells and u-nderground Seine <br /> dewateri i2 recor-ds . in addition, intormnation obtained from <br /> the coal exploration drillin— proc-ram provided data to <br /> define : <br /> - the depth and horizontal extent of potential <br /> aquifer units , <br /> - the aquifer lithology and thickness and <br /> - whet-her' the aquifers are confined. (artesian) <br /> or unconfined (:Jester table) . <br /> ' he company also obtained .available informa- <br /> tion from the U . S . Geological Survey and the U ._ S . Forest <br /> Survev to augment the hydrologic data base . <br /> b . Descripton of aquifers and water table <br /> (1) General <br /> The major aquifers in and adjacent tc <br /> the permit area are the alluvial stream deposits , the <br /> ?Iesaverde , the TvaS2tC71 fOrTlat]On and the Ohio COi.�?iOIBerate . <br /> the units that could potentially be et"I"ected by the :Nine <br /> include =he alluvium and Upper , :Middle and Rol.....ns Sandstone <br /> Units of the _•iesaverde Formation . See Geologic Cross Section <br /> MVa'�s at Exhibits III-D-3 (a-c) <br /> ( 2) Alluvial - unconsolidated mate:-ials <br /> The alluvium is the most prominent <br /> aquifer in t..e stud: area . Ti:_..I: a11uv_al deposits vielc 2.01 <br /> �a o s per nin:. te to z Dr^i: ist o'i ;Jell . The shal_D'J <br /> 2 <br />