1995-06-09_REPORT - M1977378 - Laserfiche WebLink

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A. Purpose SUNNYSIDE GOLD CORPORATION MLR PERMIT FILE NO. M -77 -378, TR -14 SEEP INVENTORY AND MONITORING PROGRAM UPDATED 6/1/95 Sunnyside Gold Corporation (SGC) has submitted a Mined Land Reclamation (MLR) Permit Technical Revision (TR -14) to the Division of Minerals and Geology (DMG). TR -14 provides technical details to implement the conceptual plan contained in the permit to eliminate Sunnyside Mine drainage from the Terry and American Tunnels. This will be accomplished by installation of concrete bulkheads in the tunnels. SGC, through the DMG TR approval process, was required to address a list of concerns prepared by DMG (April 15, 1993). Item 2 of this list of concerns required; 1) an inventory of the vicinity of the workings to be flooded to establish background data on seeps, springs and flowing adits for conditions prior to valve closure and monitor for changes after valve closure. Modifications to DMG's initial (April 15, 1993) general study outline requirements have been made through subsequent communication and agreement between SGC and DMG. 2) that SGC report on the feasibility of using groundwater tracers. SGC subsequently performed the feasibility study and committed to inoculating the Sunnyside Mine with bromide (tracer) and monitoring for bromide at identified monitoring sites. SGC has since been released from this commitment due to the potential of introducing toxicity to State waters. Stream monitoring will continue to detect abnormal flow or metal levels. B. Scope I. Seep, Springs and Adit Flow Inventory 1. Study Areas a) Cement Creek Drainage - Bounded by Cement Creek on the west - Bounded by 12,200 foot elevation contour on the north and east sides - Bounded by the confluence with the South Fork of Cement Creek on the south (approximately 10,500 foot elevation)