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Loner i err ~tcratorns: <br />Since. as noted eslier, Bi14's mining opr3tions have pernaJtea*.ly alterad he <br />groundwater hydrology of the West Pit area. Bl\1 must mon:wr and manage arty and u!! <br />discharges 4; m the West P:t to the Rito Seco or zrea ro::rdwater ~.nti: they can dzfinttively <br />sho~4 that a min-marrged aystem is irscapohie of producing conrir:nano to :he wate^~ of the <br />state <br />Reestab!ist'_ :er_t of a Barrier Between the ?Zlte Szco and the a%e.st Pit: <br />The F:e-minin? e:cisterrce of a "green clay faun zone, which prcbably acted a h.ramulic <br />barrier" (TZ-25, pg. 8} could be mimicked by tse creation of some tyre of water baser "wall" <br />betw'etn the'~'est Pit and the Rito Seco. R~t support the CCCD Consultant's recomm~:ndation <br />that such a barrier be :.onsidered. <br />Conclusions: <br />tviiaatai Policy Crater works to reduce the negative itnpac-s of mining. As suci_, we try <br />to support postrive actions by mini ope~aters, and reguLiton~ agencies. Tn the present situation, <br />we recognize thaz there is a responsive party, and thaz the var_ous r;ulatory agrncies are <br />working !o protect t}:e public, and bott: public and private resources, nom harm. We feel that <br />fttis is an opponunity to demonstate that even whey a mine pemit (in this case the closure <br />permit] fails w adequately proton -esources; that adequate and responsible actions can take place <br />to prevent serious harm. <br />~ currently written. we do not feel the draft CDPS permit adequately protects :he waters <br />of the state. R'e arse the WQCD to make the necessazy changes to the permit to insure teat the <br />people and resources of Colorado will not suffer from the less than a decade of mining a~Kivity at <br />the San Luis BM mine. <br />ThaaL you for the opportuniy to cotttment. If yore have any questions. please eve me a <br />call. <br />Respectfully, <br />.~~ _ _/J A <br />Dan Randolph <br />Southwest Citt:uit Rider <br />cc: <br />CCCD <br />Lori Potter <br />Western ylitung Action Project <br />