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<br /> <br />Site mining is anticipated to continue six years beyond when last constructed wetland bench is <br />completed. On site activst'ses, in addition to mining, include maintaining constructed wetland sites <br />and monitoring emergent vegetation growth and system stressors. <br />6.1 Maintenance Activities <br />Management of these wetland systems involves weed control, eradicating undesirable <br />hydrophytes, replanting, and minimizing runoff of turbid discharge water into wetland benches. <br />Trash produced on site will be removed from site and properly disposed of. Woody debris <br />removed as mining progresses will be buried in backfilled areas. Site fencing will be maintained to <br />exclude livestock from site during mining and reclamation periods. <br />Produced water from mining areas will be treated in the Phase I area detention basin for settling <br />of carried suspended load. Basin containment volume will be controlled by a pipe used to <br />stabilize water level at same elevation of constructed wetland bench. A Mirafi ]OOX sediment <br />fence, erected and maintained around Phase A bench sections bordering detention pond <br />(Appendix B, W-1), will be used to minimize silting of emergent wetland vegetation. Low- <br />turbidity water removed from upper pond surface will be discharged into river periodically at peak <br />volume. A flap-gate installed at the end of the pipe will prevent backflow from river. <br />6.2 Responsible Parties <br />Responsibility for maintaining mitigation progress at the site is under the discretion of GJ Pipe. If <br />observations indicate that the transplants are not becoming established necessary steps will need <br />to be taken. Circumstances that require additional consultation from outside sources will be <br />contracted through GJ Pipe. <br />6-1 <br />