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r ~ .. <br />~f <br />t_ <br />~~ <br />,, <br />~i <br />~~ <br />.~ <br />r ~ <br />F. - <br />~. i <br />f b a <br />' ~;~. , <br />jjf <br />~1 <br />,.+~ <br />.. <br />,,, <br />' ..a <br /> <br />i <br />r •~ <br />Mauro -Carol <br />lace Two .. - `..~ • <br />Septambes 10, 1979 , <br />. ,1.. <br />,~ ~ <br />c. RestoraRion of the alluvlal agiifer - it I11,~. •aeHain that <br />the alluvlel.aqu~•f~ woald bq:rssiored under the ptYp~p~~id reclauetlon <br />plan. Additienal,all~wiris sfiould be taken to restorf.,i~e •Ilwial <br />aquifer. fosstbliYieawre3 Include: ~ ;~ <br />(1) Conpas't t spoil surface ~sfirs piaceeenE;'Af alluvlal <br />matsrtel.. ~=;, <br />(2) place a layer of.,easpacted clay upon this iti-fau to <br />serve as a hydrologic barrier. <br />(3) Fi11 with alluvial ataterial and reconstru0lkthe <br />channel way as• discuse4~~,;pbova. If the al.li~lliss coarsens <br />with depth, the alluviuat sttwr)d rocoastroct ~Mis atratl- <br />graphy. Coarse and fine atluilum should be ronioved, <br />stored, and returned separately. ..,,.. <br />2) Alluvial Va11ey,Floor considerations -'a1Mow~h thaasurface water <br />tontrtbutian to the~Cllnadien River appears negliglb;s, tt» ground water <br />contribution Is potee-t'lally greater. Ground water flaw,;down'Nana Draww <br />swat be estimated ualra~ pump test data. <br />.~; <br />j) Surface Water Mgt-i'tering -the monitoring of ponrlt~~luent .appears <br />adequate. The applteailt should supply more details ou'ihe monitoring <br />program for disturbad`~rws following reclamation. ; <br />4) Ground Water itpring a It s¢~e~ars that water-gp4l.itdring walls <br />would be destroyed~y ~intng and~Wiid"tilled following re~lamatlon. These <br />wall sites should tR, wovad so that the soma wells,aa~~yy ~s vsed to monitor <br />ground water tieforey dyrinp and following mining. .'~11a following changes <br />should also be made ,In the nanitoring program: ,• <br />e. Nonttoring ahoufd be parfgrmed quarterly foi water quality, <br />and monthly for water levels. During the spring, tha,appllcant might <br />with to record water levels on s weekly basis. <br />. -. <br />b. The water qoa N C~~F monitoring program should hiclvie additional <br />analysis for total alkyl,lnlty. tWsi acidity, sodluat adsorption talc, <br />specific alectrleal ooadKetanee, aluminum copper, f~putide, nttrafe, <br />orthophosphrFe, pot4>fsflae and seleglum. After Initial mpnitoring tilts <br />IIst.Yay be -educsd or .the psrlodlelty changed in .i~nsult>stlon with <br />the regulatory authority.,. <br />~: <br />~) Approximate 0[lg1Qa1 Can tour -the proposed surfale at this lieu <br />dws pot ropnsent.apprsx4tsate eriginaf contour. Tha.:-ropoaed"ragiaiea- <br />t{on surfau is not wall integrated with the surround(ng topogrpshy, <br />particularly slogg thar`;adUtbarn boundary. In addition,: a draippe way <br />located In the NE part of the per*It area YYs been aawd to follow the <br />eastern and northern permit boundary. This drainage should ba rsloeeted <br />