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ei ` <br />('OOLEY AND FULTON LAKES PIT <br />EXHIBIT I - SOII.S INFORMATION <br />The attached soils information provided in this Exhibit is provided from the USDA Natural Resources <br />Conservation Service (NRCS), formerly the Soil Conservation Service, "Soil Survey of Adams <br />County, Colorado dated October, 1994. Site specific soil boring logs data are available on much of <br />the site, but are not provided here for reasons of corporate confidentiality. This data may be made <br />available to the DMG on a confidential basis if deemed necessary. At the page at the end of this <br />Exhibit is a copy of the relevant map from the above Soil Survey with the permit area outlined on <br />it. The location of these soils is also shown on Exhibit C-1, Pre-Mining/Existing Conditions Map <br />From the Soil Survey, the soils found to be present on site with a brief description are as follows: <br />H1B- Heldt clay, 0 to 3% slopes. The soils are well drained soils formed in clayey alluvial <br />material, that generally are present on terraces along major streams in the County. In <br />a representative profile, the surface layer is light brownish-gray clay about 5" thick <br />that is noncalcareous. The subsoil is light brownish gray clay about 27" thick that is <br />noncalcareous in the upper 9" and slightly calcareous in the lower part with spots and <br />streaks of salt often being present in the lower part. The underlying material, below <br />a depth of 32", is light-gray and light brownish-gray silty loam in the upper part and <br />very pale brown sandy clay loam in the lower part that extends to a depth of 60" and <br />is slightly calcareous. The soils absorb water rapidly when dry because of large <br />cracks, but as the soils swell water absorption becomes very slow. The available <br />water capacity is high, permeability is slow, and the entire soil is suitable for plant <br />roots. Surface runoff is medium to slow, and the hazard of water erosion is slight. <br />H1D- Heldt clay, 3 to 9% slopes. The soils are well drained soils formed in clayey alluvial <br />material, that generally aze present along and parallel to narrow terraces and benches <br />along and parallel to most of the major drainageways in the County. In a <br />representative profile, the surface layer is light brownish-gray clay usually less than <br />5" thick that is noncalcareous. The subsoil is light brownish gray clay about 27" thick <br />that is noncalcareous in the upper 9" and slightly calcareous in the lower part with <br />spots and streaks of salt often being present in the lower part. The underlying <br />material, below a depth of 32", is light-gray and light brownish-gray silty loam in the <br />upper part and very pale brown sandy clay loam in the lower part that extends to a <br />depth of 60" and is slightly calcareous. in places the soil is underlain with sand or sand <br />and gravel below a depth of 40", and these areas are subject to streambank cutting <br />from floods and fluctuating streamtlow. Near the edges of drainageways, this soil is <br />subject to gullying when the flow of water is concentrated. The soils absorb water <br />rapidly when dry because of large cracks, but as the soils swell water absorption <br />becomes very slow. The available water capacity is high, permeability is slow, and the <br />entire soil is suitable for plant roots. Surface runoff is medium to rapid, the hazard <br />of water erosion i moderate to severe, and the hazard of soil blowing is slight. <br />