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United States Department of the Interior FISH AND WILDLIFE SERVICE Ecological Services Colorado Field Office 755 Parfet Street, Suite 361 Lakewood, Colorado 80215 IN REPLY REFER TO: ES/CO: T&E/Species list Mail Stop 65412 JUL 14 2004 Mr. Berhan Keffelew Division of Minerals and Geology Department of Natural Resources 1313 Sherman Street., Room 215 Denver, Colorado 80203 Dear Mr. Keffelew: RECEYi/E® JUL 152004 Givision of Minerals and Geology The U.S. Fish and Wildlife Service (Service) received your memorandum dated May 21, 2004, regarding the notice of application for Aggregate Industries - WCR, Inc., Hazeltine Mine, File No. M-2004-031, in Adams County, Colorado. For your convenience, we have enclosed a list of Colorado's threatened and endangered species, as well as the counties in which they are known to occur. We cannot provide site- specific details. If questions regazding the presence of an endangered species, the extent of its habitat, or the effects of a particular action need to be resolved, the Service recommends that a knowledgeable consultant be contacted to conduct habitat assessments, trapping studies, or to provide recommendations regarding options under the Endangered Species Act. Due to staffing constraints, the Colorado Field Office cannot provide you with these services. Since 1978, the Service has consistently taken the position in its section 7 consultations that Federal agency actions resulting in existing or new water depletions to the Platte River system may affect the endangered whooping crane (Grus americans), endangered interior least tern (Sterna antillarum), threatened piping plover (Charadrius melodus), endangered pallid sturgeon (Scaphirhynchus albus), threatened bald eagle (Haliaeetus leucocephalus), endangered Eskimo curlew (Numenius borealis), threatened western prairie fringed orchid (Platanthera praeclara), and designated critical habitat for the whooping crane and piping plover in the central Platte River in Nebraska. In general, depletions include evaporative losses and/or consumptive use less return flows. Project elements that could be associated with depletions to the Platte River system include, but are not limited to, ponds (detention/recreation/ irrigation storage), lakes (recreation irrigation storage/municipal storage/power generation), reservoirs (recreation/imgation storage/municipal storage/power generation), pipelines, wells, diversion structures, and water treatment facilities.