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provide addition insurance to protect their investments. Will the wetlands <br /> become the defacto flood retention area? <br /> o How will erosion along the streambanks be managed as more people use <br /> the area? <br /> • Biologic Dynamics <br /> o Riparian Vegetation—what species of vegetation will be used? They <br /> should be plants and trees native to Colorado and the Pagosa Springs area. <br /> Who will maintain them? <br /> o Do the adjacent wetlands need periodic connection to the San Juan River <br /> and if so will the project allow for that? No discussion on the wetland <br /> integrity is presented nor the species that may be impacted by construction <br /> and use activities. Specifically Neotropical birds, amphibians and wading <br /> birds. <br /> o Limited discussion is presented on the impacts of hardening the San Juan <br /> River to the trout fishery that exists there. What will happen to the young <br /> fish habitat (interstices areas between rocks on the bottom)and the resting <br /> areas needed by the salmonid species? Are there any spawning areas in <br /> whitewater park? What will happen to them? <br /> o What will be the impacts to the macroinvertebrates and the food base for <br /> the trout fishery? <br /> o What has happened to the fish habitat that was designed and developed <br /> using the Rosgen approach? Are these the fish habitat structures that you <br /> are referring to as having failed? Did the structures provide the desired <br /> habitat for the trout? <br /> o You cannot grout along the stream bank as it will reduce percolation of <br /> water into the river,reduce the ability for streambank vegetation to grow <br /> and lead to reduced water quality from runoff. <br /> • Water Chemistry and Stream Integrity <br /> o Sediment will increase in the San Juan River during construction <br /> activities, even if the construction occurs during low flow periods. The <br /> sediment may deposit in the redds of salmonids downstream and have a <br /> detrimental effects on their spawning success. <br /> o Water quality impacts from grouting may occur depending on the water <br /> migration through the bed of the San Juan River. Has anyone looked at <br /> the movement of water through the bed of the river (the bed and hyporheic <br /> zone) and its importance to sustaining the trout fishery in the San Juan <br /> River? <br /> o Disturbance activities(construction and from people) will increase runoff <br /> into the San Juan River. What project mitigation efforts will occur to <br /> minimize the runoff and reduce the chance for a fish and <br /> macroinvertebrate kill? <br /> 3. Monitoring, Maintenance and Mitigation. <br /> • What monitoring is being implemented to document the effects to the fish and <br /> insect populations in the modified stretch of the San Juan River? <br /> 3 <br />