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<br />~~ <br /> <br />, 0003Gl <br /> <br />ambient air temperature <br />water temperature <br />total dissolved solids <br />total suspended solids <br />dissolved oxygen <br /> <br />Water quality data collected from April 2001 to present is included in the appendices. During <br />the trash rack cleaning project. turbidity measurements in Morrow Point Reservoir. Crystal <br />Reservoir. and in the Gunnison River below Crystal Dam will be taken on a daily basis. <br /> <br />Water quality would be monitored during the controlled draw down. trash rack cleaning. and <br />refill of Morrow Point Reservoir. Adjustments in releases from Blue Mesa and Morrow Point <br />Dams would be made as needed to protect downstream water quality. Trash rack cleaning and <br />reservoir refill would be temporarily stopped if turbidity readings below Crystal exceed desired <br />conditions, Once the reservoirs begin to clear. the trash rack cleaning or reservoir retill would <br />continue, <br /> <br />Historical and Cultural Resource Properties <br /> <br />The proposed project is located near the Curecanti Archeological District (District), The District <br />consists of a complex of over 200 recorded archeological sites and encompasses 6.750 acres, <br />The District was listed on [he :-,rational Register of Historic Places on ,-\ugust 15. 1984, <br />Prehistoric sites dating back to 8.000 B,C. represent a signitlcant change in the understanding of <br />how these early people used Colorado's high mountain valleys, ,-\ large collection of artifacts <br />from the area is in storage at the Midwest Archeological Center in Lincoln. Nebraska. In <br />addition. 39 sites generally associated with the Ute Tribe and c1assitied as temporary camps have <br />been identitied in the Black Canyon of the Gunnison National Park (NPS [997). <br /> <br />Historic resources within the Curecanti National Recreation Area illustrate three great human <br />achievements-building narrow gauge railroads. dam building/engineering, and <br />homesteading/saw milling (NPS ,1997): The proposed project is in the Cimarron area and is a <br />focal point for illustrating the role of the narrow gauge railroad in the development of western <br />Colorado, A display at Cimarron depicts the rise and fall of the narrow gauge railroad as a <br />mountain transportation system. <br /> <br />The lowering of Morrow Point Reservoir to a water surface elevation of 7,129 fl. may expose <br />portions of the old Cimarron Narrow Gauge railroad bed that have been underwater since the <br />filling of Morrow Point Reservoir. Morrow Point Reservoir may be closed to the public between <br />September 4'h and October 1st for public safety; therefore. the railroad bed would be protected <br />when exposed. No other known historic or archeological sites occur within the reservoir high <br />water line. <br /> <br />17 <br />