2017-02-24_PERMIT FILE - M2017007 (5)

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EXHIBIT I SOILS SOILS INFORMATION The following information was obtained from site observations and the basic soils and vegetation information found thru the USDA' s National Soils information page and the Soil Survey of Huerfano County. The following soils information downloaded from the site is made part of this application. Soil units are shown on the USDA map, reproduced on page 28 following this text . The photo map shows the surrounding vegetation features and soil types . This site lies along a east/west trending terrace deposit of gravel south of the Huerfano River . There are 5 soils types found on the mine site, of these 5 only 2 will be disturbed by mining. Underling the soils is a layer of overburden varying from 4 to 60 inches deep and a layer of gravelly sand that is 12 to 50 plus feet thick. The 22 - Glenberg sandy loam, 24- Haverson clay loam and EL-Ellicott-Las Animas complex soils cover approximately 13 . 19 acres and are in the river bottom that will not be mined. The 77 -Schamber-Midway complex, 3 to 25%slopes soil series covers approximately 10 . 4 acres or 10 . 6o of the mine area. The general soils description indicates that this soil is deep, and excessively drained. The upper most horizon is 0 to 5 inches of deep brown gravelly loamy sand. Underlaying this top most horizon is an additional 0 to 9+ feet or overburden and 40 to 50 foot thick layer of very gravely sand. We believe this material is the same type that underlies the Willowman soils . The northern end of this soil runs along the transition area between the range level and the river bottom. Much of the area has no soil since it is the open face along the river. The 92 -Willowman gravelly sandy loam, 3 to 8%slopes soil series covers approximately 72 . 6 acres or 75% of the mine area. The general soils description indicates that this soil is deep, somewhat well drained soil on terraces . The upper most horizon, is a 0 to 5 inches deep, brown gravelly fine sandy loam and is a slightly sticky, slightly plastic and mildly alkali soil that is usable as topsoil . Underlaying this top-most horizon is an additional 3 to 5 feet thick layer of gravelly sandy loam overburden material inter bedded with calcareous layers . This overburden layer will be salvaged for use as backfill material on the mine' s perimeter. 25