Laserfiche WebLink
Per comments in the SL -14 Phase I Bond Release Application (May 2013), major drainages within the SL - <br />15 bond release block were removed and placed within exclusionary corridors until full stabilization was <br />achieved. Those stabilized drainages, in A and F Pits, are included as part of this application. <br />1.3 Drainage Control Documentation <br />All drainage control structures at Trapper Mine have been built according to the approved permit plan and <br />are functioning as designed. Approved sedimentation pond designs, including hydrologic modeling backup, <br />are routinely provided to DRMS and are located in Appendix Q of the permit document. Appendix Q also <br />provides other drainage control documentation, including Professional Engineer dam construction <br />certifications and diversion ditch designs. <br />In addition to design information, documentation that Trapper Mine drainage control structures are <br />functioning in accordance with the approved permit plan is provided by continuous surface water <br />monitoring. The "Annual Hydrologic Report" section of Trapper's annual reports contains a vast amount of <br />surface water monitoring data that shows that Trapper is consistently in compliance with all NPDES effluent <br />discharge requirements. <br />061 <br />