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~ III IIIIIIIIIIIII III ~ DEPARTMENT OF THE ARMY CORPS OF ENGINEERS, OMAHA DISTRICT TRI-LAKES PROJECT OFFICE, 9307 STATE HWY 121 LITTLETON, COLORADO 80123-6901 June 9, 1998 Mr. Carl B. Mount Division of Minerals and Geology 1313 Sherman Street Room 215 Denver, Colorado 80203 RE: CAMAS Colorado, Inc., Distel Farm Resource, M-89-029, Coups File 11199880431 Dear Mr. Mount: RECEIVED JUN 12 1998 Oivislon of Minerals & Geology .Reference is made to the Distel Farm Resource Amendment application. The project is located in Section 8, Township 2 North, Range 68 West, Weld County, Colorado. :Before any work at this site begins which may involve the excavation in or the discharge of dredged or fill material into streams or wetlands, the property should be examined for wetlands pursuant to Section 404 of the Clean Water Act. Any wetlands should be delineated and mapped. 'T'his office should be contacted by a proponent of the project for proper Department of the Army pr:rmits or changes in permit requirements prior to any work in an existing wetland or stream. 1?lease find the attached list of Environmental Consultants who may assist in the wetland delineation and mapping. USFWS outlining this requirement and a list of recognized Soiranthes diluvialis consultants. Please be advised that the U.S. Fish and Wildlife Service (USFWS) has determined that the Ute ladies' tresses orchid, Soiranthes diluvialis, may occur in seasonally moist soils and wet meadow:; near springs, lakes, or perennial streams and their associated flood plains below 6,500 feet elevation in certain areas of Colorado. This plant species is now officially listed as threatened under the Endangered Species Act. For projects in specific areas, a survey for this plant species, approved by the USFWS, will be required before the Corps of Engineers can issue authorization for work within waters of the United States. I have attached a copy of a November 23, 1992 letter from the ~\Iso be advised [hat the U.S. Fish and Wildlife Service (USFWS) has listed the Preble's meadow jumping mouse (Zapus hudsonius prebler) as a threatened species under the Endangered Species .pct of 1973. This species occurs in low undergrowth in open wet meadows and riparian corridors, or where tall shrubs and low trees provide adequate cover, in sites below 7,400 feet elevation. in certain areas in Colorado and Wyoming. For projects in these areas, a survey to determine the presence or absence of potential suitable habitat must be made. If potential habitat is present, then a trapping survey must be conducted. Results of the habitat determination and trapping survey must be approved by the USFWS before the Corps of Engineers can issue authorization for work within waters of the United States in these areas. [have enclosed a list of qualified wildlife consultants for Preble's surveys and a copy of the survey guidelines.