Laserfiche WebLink
Memo to Bill Goodhard -2- February 13 , 1996 <br /> whether or not revegetation efforts would be appropriate for any of <br /> the land affected by this project may be made in consultation with <br /> DMG at a point in time near the end of the tailing removal project, <br /> based on site specific observations. An inspection of sedimentation <br /> controls during the tailing removal project may also be appropriate. <br /> 4 . The work plan detailing relocation of the Gold Prince Mill Tailings <br /> and Waste Dump provides the basic information necessary to allow DMG <br /> to inspect the site and make a determination as to whether or not <br /> the project has been completed and meets the requirements of the <br /> selected performance standards. It is suggested that a site <br /> inspection may be appropriate during the mitigation project to <br /> facilitate DMG's concurrence with the disposal site selected, and to <br /> evaluate the soils available at the selected disposal site for <br /> capping of the relocated waste rock and tailing. Also, it is DMG's <br /> understanding that the modifications to the existing Gold Prince <br /> Mine closure in order to make it a water impounding closure, will <br /> essentially result in establishment of a non-structural bulkhead. <br /> It is also DMG' s understanding that available mine maps indicate <br /> that only a small amount of hydrostatic head (approximately 15 feet) <br /> would build behind the non-structural bulkhead before the impounded <br /> water would spill into the Sunnyside Mine workings. Please report <br /> on the feasibility of monitoring the pressure head behind the Gold <br /> Prince bulkhead to provide assurance that unanticipated pressures <br /> that may threaten the integrity of the bulkhead are not developing. <br /> 5. The work plan detailing construction of run on control measures and <br /> mine waste relocation at the Longfellow Koehler site provides the <br /> basic information necessary to allow DMG to inspect the site and <br /> make a determination as to whether or not the project has been <br /> completed and meets the requirements of the selected performance <br /> standards. It is suggested that a site inspection may be <br /> appropriate during the mitigation project to facilitate DMG's <br /> concurrence with the disposal site selected, to evaluate the soils <br /> available at the selected disposal site for capping of the relocated <br /> waste rock, and to evaluate the feasibility of run on controls. It <br /> may also be appropriate for DMG to review the designs for proposed <br /> lined diversion ditches prior to their installation. <br /> 6. The work plan detailing removal of Boulder Creek Tailings provides <br /> the basic information necessary to allow DMG to inspect the site and <br /> make a determination as to whether or not the project has been <br /> completed and meets the requirements of the selected performance <br /> standards. <br /> 7. The work plan detailing relocation of the Pride of the West Tailings <br /> provides the basic information necessary to allow DMG to inspect the <br /> site and make a determination as to whether or not the project has <br /> been completed and meets the requirements of the selected <br /> performance standards. Relocation of the tailing to the <br />