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The l:assive :;an~stone ::timber of the underl;•ing Feint Lcol:out Sand- <br />• stone is corsidered a potential a..uifcr. Porosit;~ and pe:--.eabilit;~ are <br />generall;• good. =echarge of the aeuifer is alor.F t!:e Ontorop wt:ich fs <br />a:proxirratel, four miles to the north of the rains area. ':cis member of <br />the Point IooY.out Sandstone is seta^ated from the overl•~i^r aineable coal <br />seams D~• generally inper-eahle cla;• shales of the Laser l:e~efee For^~•tion. <br />Tce lower rcer:.ber of the Port LooY.out :,andstone lae4.s the corosit~• and oer- <br />e~eabilit~ to be considered a potential source of water. <br />Ttre ::aacos Shale, which underlies the Point Lookout dandstone, is al- <br />mast totally impermeable except where fractured. <br />P:A?G.i~D 'r';.7'i.~.:OLi~T:O:: Ci;.:T:DL <br />It t:as been eropose~ b;• ~erF•uson =r.,ineers that surfac4 runoff from <br />or through tf.e mined aria :?111 be co-.:3ined in settlin; po-.•is. Sueh raten- <br />• lion will precept cont~•.i^~tion of i:a• Gulci: dra'nage and the La F1ata <br />iver b• particulate ^atte-. <br />Field examination of the outcro~s of the ;ienefee Forr..stion indicates <br />that shales >,ithin the lo•.acr F:enefee Form.tion will ;seven: dorrn~aard rer- <br />colatlon of Craters and thus prevent possible contar:l~aticn o= the potential <br />aquifer within the underl;•inF rras~ive sandstone o: the Poir.t LooF:out ;,and- <br />stone. <br />Other control measures, wr:'.c:: are 'oeyond the scope o° this report, have <br />been designed by Ferguso- engineers. <br />PPOR~ ~ ~ - . ~ ate, <br />__~pt~Of <br />a• ~e1 2718 ~iG.r ~ ~ .: ~ r~,.~-~---~---_.. <br />o :.•••.:~.....: o~~g ,Fred ~:. Johnso~;C'.P.G., A.I.P.G. !;'2718 <br />i AIP~j A}~ <br />• ~ ~•~ O< <br />