2020-06-23_PERMIT FILE - M2020032

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SITE DESCRIPTION EXHIBIT B SOILS INFORMATION The following information was obtained from site observa- tions and the basic soils and vegetation information found thru the USDA' s National Soils Survey information page and the Soil Survey of Grand County. The following soil information is made part of this application. Soil units are shown on the USDA map, reproduced on page 4 following this text . The photo map shows the surrounding vegetation features and soil types . This site lies on a mesa top terrace deposit of gravel that runs east/west in the area north of the Town of Granby. There are three soils types found on the mine site . The 66 - Quander Stony loam- 15 to 55% soil series covers approxi- mately 0 . 1 acres or 1 . 0% of the mine area . The general soils description indicates that this series consists of very deep, well drained soils that formed in the face of glacial till . The Quander soils in this area is on a very west face of the property as it falls into the adjoining mine . The upper most horizon is a 0 to 10 inches of stony loam, because of this there is little salvageable soil suitable for reclamation. Underlying the top most layer is a 25 to 40 foot lense of sandy gravel . The 93 - Youga Loam, 1 to 6% slopes soil series covers approxi- mately 2 . 3 acres or 22 . 9% of the mine area . The general soil description indicates that this soil is from 0 to 14 inches deep and well drained. We estimate approximately 8 inches on average can be salvages for use in reclamation. The 94 - Youga Loam, 6 to 15% slopes soil series covers approxi- mately 7 . 50 acres or 76 . 2% of the mine area . The soil descrip- tion matches that referenced for the Youga above except on a steeper sloe on the north end of the mine . Approximately ?? acres of this soil is on the undisturbed area where no soil will be recovered. On the area that will be disturbed we expect to salvage approximately 8 inches . The underlying sandy gravel varies from 0 to 35 feet deep since it slopes from the top of the terrace deposit to the creek bottom level . Any area below 4875 has no gravel under it . The bedrock that underlays the gravel is part of the Trou- blesome Formation (upper Miocene to upper Oligocene) and is described as consisting chiefly of weakly consolidated siltstone, or a minor interbedded sandstone in excess of 950 feet deep . Mining will end approximately 6 feet above the bedrock leaving a gravely base under the replaced soil . Track 4 Grading Project June 11, 2020 3