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water levels in the backfilled West Pit and ground water capture wells in the adjacent <br />Rito Seco alluvial aquifer. Maintaining the ground water level in the West Pit below <br />the elevation of the adjacent Rito Seco stream bed effectively prevents ground water <br />outflow from the West Pit and allows backfill materials to rinse constituents that <br />accumulated when the backfill material was stockpiled as waste rock. During the <br />period of rinse out, ground water extracted from the West Pit has been processed in a <br />water treatment facility prior to discharge to the Rito Seco under a CDPS permit <br />issued (CO-0045675) by the Colorado Department of Public Health and Environment <br />(CDPHE). <br />This permit amendment describes the revised long-term water management program <br />for the West Pit and has been prepared for consideration by the DRMS and the <br />Colorado Mined Land Reclamation Board (CMLRB). This permit amendment has <br />been prepared and submitted to incorporate comments or suggestions received from <br />the DRMS and the public with relationship to the withdrawn AM-02 permit <br />application. This permit amendment affects Exhibits A (Legal Description), C (Pre- <br />Mining and Mining Plan Map(s) of Affected Lands), E (Reclamation Plan), F <br />(Reclamation Plan Map), G (Water Information), L (Reclamation Costs), N (Source <br />of Legal Right to Enter), and O (Owners of Record of Surface and Subsurface Rights <br />for Permit Area and Adjacent Lands). All other parts of the permit remain the same. <br />In particular, the following topics are addressed in this permit amendment: <br />1. Revise the West Pit water management program <br />2. Adjust the permit boundary to incorporate the areas included in the revised <br />West Pit water management program <br />3. Revise the water monitoring program <br />4. Change the post-reclamation land use description to incorporate the revised <br />West Pit water management program <br />5. Revise the description of final closure and reclamation of the tailing disposal <br />area. <br />Battle Mountain Resources, Inc. 2 <br />P.\Proj-t \212-Newmont(S-Ll i.)\SenL-\P-t Amendment - West Pit Me pment\VS Report & PDFs\Tezt\PenmitAm-bxnt_v5c.dw December 2007