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STATE OF COLORADO <br />Bill Ritter, Jr., Governor <br />• DEPARTMENT OF NATURAL RESOURCES O' <br />DIVISION OF WILDLIFE y <br />AN EQUAL OPPORTUNITY EMPLOYER OF `~4 <br />Thomas E. Remington, Director <br />For Wildlife- <br />6060 Broadway <br />Denver, Colorado 80216 For People <br />Telephone: (303) 297-1192 <br />wildlife. state. co. us <br />July 6th, 2009 <br />Travis Marshall <br />Environmental Protection Specialist <br />Division of Reclamation, Mining and Safety <br />101 South 3`a, Suite 301 <br />Grand Junction, CO 81501 <br />Re: Clifton Sanitation District # 1 property at D Rd and 32 1/2 Rd. <br />Dear Mr. Marshall, <br />This letter is in response to a proposed sand and gravel mining operation located on Clifton Sanitation District <br />#1's property located at T1S, R1E, Sections 14 and 23. The Division of Wildlife appreciates the opportunity to <br />comment on the wildlife species present in this area, as well as how they may be impacted by the proposed sand <br />and gravel operation. <br />• The site of the proposed mining operation is a riparian area. While riparian areas cover only 3 percent of the total <br />landmass in Colorado, they provide habitat to over 90 percent of the state's wildlife at some phase in life. These <br />areas serve as both permanent habitat and as movement corridors from one habitat type to another. The Clifton <br />Sanitation property at D Rd. and 321/2 Rd. is currently utilized as a production area, a foraging area, and winter <br />range for Canada Geese and a variety of other waterfowl. Approximately one mile upstream from the Clifton <br />Sanitation property there is a well established Great Blue Heron rookery. This stretch of the Colorado River is <br />also winter range for bald eagles, although there are no know active nests in the immediate area. A site visit in <br />June of 2009 revealed an osprey nest built on top of a power pole on the property. District Wildlife Manager <br />Frank McGee made observations of the nest, and determined that it was not currently active. Osprey are known <br />to use the area, and another Osprey nest is located on an adjacent property owned by Mesa County, consequently <br />careful surveys for new and active nests should be performed prior to the commencement of mining activities. No <br />new surface activity should occur with 1/4 of a mile of active Osprey nests from April 1 St until August 3 <br />Artificial nesting platforms are regularly used by Osprey, and can be erected well outside the planned mining area <br />to encourage birds to nest outside the area. Wild Turkeys were introduced several miles upstream at the Tilman <br />Bishop State Wildlife Area, and turkeys may occasionally visit the property. The property provides habitat for <br />mule deer and a variety of small mammals including, but not limited to, beaver, muskrat, raccoon, striped skunk, <br />red fox, and cottontail rabbit. River Otter sightings along this stretch of the Colorado River continue to increase, <br />and otters will frequently visit water impoundments off the river in search of food. The stretch of the Colorado <br />River adjacent to the property is habitat for four species of native, endangered, fish; the Colorado Pikeminnow, <br />Razorback Sucker, Bonytail, and Humpback Chub. In 2001 the Division of Wildlife sampled the pond on the <br />Clifton Sanitation property (and on the Arnett Property), and found a variety of non-native warm water fish <br />species. At the time of the survey there was a dike that removed this pond from the 50 year flood plain. These <br />non-native fishes have been found to be detrimental to native Colorado River fishes, and the existing dike should <br />not be breached unless steps are taken to remove the non-native fishes. <br />DEPARTMENT OF NATURAL RESOURCES, Harris D. Sherman, Executive Director <br />WILDLIFE COMMISSION, Robert Bray, Chair • Brad Coors, Vice Chair • Tim Glenn, Secretary <br />Members, Dennis Buechler* Jeffrey Crawford • Dorothea Farris • Roy McAnally • Richard Ray* Robert Streeter <br />Ex Officio Members, Hams Sherman and John Stulp