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water level. To finalize this discussion, the Division requests that MRV state in writing that <br />there is not expected to be any hydrologic communication between the water in the Cash Mine <br />shaft and the baseline groundwater quality sampling point which would compromise the integrity <br />of future groundwater quality sampling. Please provide. <br />9. Re: Water monitoring plan to verify that future mining operations have minimized any <br />potential impacts to surface and groundwater quantity and quality at the Cash Mine, Who <br />Do Mine, Mount Royale Mine, and surrounding areas. The Division is in agreement with <br />MRV's proposal and timeframe for submittal of a comprehensive groundwater monitoring plan. <br />The Division will be reviewing such plan to ensure that it meets the minimum requirements of <br />Rule 3.1.7(7). As specified in Item 7 above, the groundwater monitoring plan will need to <br />include provisions for determination of the groundwater gradient within the Cash Mine and <br />surrounding azea. Please respond. <br />6.3.4 EXHIBIT D -Reclamation Plan <br />16a. Re: Desigu details to support calculation of an "interim" reclamation cost for <br />hydraulic sealing of the Mount Royale No. 1 Adit. It is the Division's understanding that <br />MRV's is not in agreement with the reclamation costs for installation of two (2) hydraulic seals <br />within Mount Royale Adit #1 as specified by Allen Sorenson (of the Division) in Mr. Sorenson's <br />February 21, 2006 memo to Tom Schreiner. It is also the Division's understanding that MRV <br />intends to submit construction-level design drawings and cost estimate data for the installation of <br />a single hydraulic seal. Please note that the future submittal will need to provide a discussion of <br />the basis for one (1) seal vs. two (2) seals originally proposed by MRV. Also, the Division's <br />engineering staff will require a minimum of three (3) working days to review the future proposal <br />for 1 hydraulic seal. MRV's proposal should adequately describe and ensure that the Mount <br />Royale Adit #1 will remain a "zero" dischazge facility during final reclamation. The Division <br />also notes that the operator (MRV) will be required to obtain an NPDES Water Quality <br />Dischazge Permit from the Water Quality Control Division, Colorado Dept. of Health in the <br />event of any dischazge from the Mount Royale Adit #1 at any time during mining and/or final <br />reclamation. <br />16b. Re: Status of various shafts, edits, and mine openings referenced within the Permit <br />Amendment Application. MRV has verified that mine openings within the proposed permit <br />boundaries for the Cash Mine, Who Do Mine, & Mount Royale azeas have been safeguazded and <br />will be closed in accordance with MSHA safety requirements. Per discussion with the <br />Abandoned Mine Land (AML) Staff, the Division will require that all "affected" mine openings <br />within the proposed permit boundaries for the Cash Mine, Who Do Mine, & Mount Royale azeas <br />be "safeguazded" during final reclamation to a level that is at least as competent as the AML's <br />standards for closure of hazardous mine openings as specified in the Colorado Inactive Mine <br />Reclamation Program's "2004 General Bid Specifications". "Affected" mine openings refers to <br />any new mine opening that has been constructed or any existing mine opening that has been used <br />or disturbed since issuance of Permit M-1983-141 (September 7, 1983). For each affected mine <br />opening, MRV will need to provide the following information: <br />