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Scott J. Keen • • Roadgate Farms Site page 2 prior to disturbance of the site we recommend that a concturence letter be secured from the USACE confirming the isolation of the waters within the open pit. Jurisdictional Wetlauds Regulated jurisdictional wetlands encountered in Colorado include submergent, emergent, wet meadows, sloughs, surface water drainage ditches, bogs, and potholes. A cattail fringe wetland skirts the waters within the open pit. Wetlands within the open pit aze considered isolated for the same reasons as the Waters of the United States discussed above. Prior to disturbance of the site we recommend that a concurrence letter be secured from the USACE confirming the isolation of the wetlands within the open pit. Preble's Meadow Jumping Mouse Habitat The Preble's meadow jumping mouse (Zapus hudsonius prebler~ is a federally listed threatened species which generally occurs neaz wetlands and water bodies. Currently, the U.S. Fish and Wildlife Service (USFWS) and USACE are requving habitat assessment and/or live-trapping surveys for all projects impacting potential critical Preble's habitat and those projects within 300 feet of the 100 yeaz floodplain containing Preble's habitat. The property was evaluated for potential Preble's habitat, based on the current USFWS guidelines. No potential critical habitat for the Preble's is located within the Roadgate Farms site. SK ~ ~ ~.R. ~~ Ute Ladies'-tresses Orchid Habitat 3~ The Ute ladies'-tresses orchid (Spiranthes diluvialis) is a federally listed threatened plant species characteristically found in wet meadows and alluvial flood plains below 6500 feet in northern Colorado, southwestern Wyoming, and the Uintah Basin of Utah. Habitat assessments and/or pedestrian surveys dtuing the blooming period are required for sites within the South Platte River 100 year floodplain and in characteristic habitat which includes azeas with a seasonally high water table, wet meadows, stream channels, floodplains, azeas with vegetation in the facultative wet or obligate classification, and jurisdictional wetlands. Habitat also includes highly disturbed sites such as old gravel mines that have since been developed into wetlands. Potential critical habitat for the orchid is present within the open pit area along the water's fringe. An orchid survey should be conducted between July 20 and August 31, and concurrence received from USFWS prior to disturbance of the site. Western Burrowing Owl Habitat The State of Colorado listed the western burrowing owl (Athene cunicularia) as a threatened species of special concern. While the burrowing owl does not fall under the protections of the federal Endangered Species Act, it is protected under the federal Migratory Brrd Act and State of Colorado statutes that prohibit the killing of this species.