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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 /> 2 <br />