2003-02-12_REVISION - M1999034 (2)

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United States ueparanent of AgNcukure ARCS Natural Resources Conservation Service 57 W. Smmley lane Brighton, CO 80601 January 28, 2003 Robert N. Fleming ADCO Consulting 2090 E. 104'" Ave., Suite 305 Thornton, CO 80233 Re: Coo!e~~ Reservoir a_nd F+!Iten. t~/!idlffe Area Pit Expansion No. 1 -Jeronimous Property Section 16, Township 2 South, Range 67 West VEGETATION INVENTORY: (303) 659-4177 X 114 -Office (303) 659-1768 -Fax www.co.usda.gov andrea.vialpando@co. usda.gov Most of the vegetation on the upland areas and along the northern and western sides of the lake consists of Western and Pubescent wheatgrass, Sand dropseed and Blue grams. There are dried weed residues that could be Field bindweed and knapweed in these areas as well. Towards the southern part of the lake the soils become wetter and support a stand of Tall wheatgrass. The perimeter of the fake is covered in cattails with a few Russian olives, Willows and mature Cottonwoods. There are two areas that have been planted to trees that are under a drip irrigation system, one on the west side of the lake and another on the south. These trees include Blue spruce, Ponderosa pine and Maples. The spruce on the south side does not appear healthy, likely from the high water table in the area. SOIL INTERPRETATIONS: The soils found on the site are as follows: Lw -Loamy alluvial land, Tc -Terrace escarpment: VoA -Vona sandy loam, Wt -Wet alluvial land moderately wet 0 to 1 percent slopes A complete description of these soils can be found in the 'Soil Survey of Adams County, Colorado'. A soil map with soils descriptions is included with this report. RECLAMATION PLAN: PLANNED POST MINING LAND USES: Wetlands, open space and/or residential estates NOXIOUS WEEDS: Inspecting the site during the winter months is not the most favorable lime for identifying weed problems. I identified residues that could be Field bindweed and one or more species of knapweed. Field bindweed and many knapweed species are considered noxious weeds in Colorado. We recommend that the applicant develop a weed management plan with Adams County Cooperative Extension to ensure that noxious weeds on the property will be controlled in a timely manner. The Natural ReSOUrceS Conservation Service provitles leadership in a partnership effort to help people conserve, maintain, and improve our natural resources and environment.