2022-12-22_REVISION - M1987164 (9)

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EXHIBIT I SOILS INFORMATION 1 . General A soil report was generated using the United States Department of Agriculture's NRCS Web Soil Survey (WSS)2 and is included in this exhibit as Appendix 1-1 at the end of this exhibit. The WSS provides soil data and information produced by the National Cooperative Soil Survey. The majority of the soil on the property is Marapos and Sherpman loam. Other areas on the site consist of Bulkley silty clay soil, however these areas will not be mined. Soils are mapped on Map C-1. The primary soil types that exist at the site are described as follows. 2. Suitability for Reclamation Revegetation The two soil types provide up to 12 inches of suitable material for revegetation. Neither are considered prime farmland according to the NRCS surrey. However, they are suitable for the post mine land use as hay meadows and dry rangeland. The A-horizon of the soil profile was used as the basis for determining the topsoil stripping depth during mining operations. 3. Soil Type Descriptions 7C—Morapos loam, 3 to 12 percent slopes Map Unit Setting National map unit symbol: kOf3 Elevation:6,300 to 7,220 feet Mean annual precipitation: 16 to 20 inches Mean annual air temperature:41 to 45 degrees F Frost-free period: 70 to 110 days Farmland classification:Not prime farmland Map Unit Composition Morapos and similar soils:85 percent Minor components:15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Morapos Setting Landform:Hills Landform position(two-dimensional): Backslope Landform position(three-dimensional): Side slope Down-slope shape: Linear Across-slope shape: Linear Parent material:Slope alluvium derived from shale Typical profile A-0 to 6 inches: loam AB- 6 to 12 inches: loam z https://websoilsurvey.sc.eszov.usda.i,,ov/App/HomePage.htm. Hayden Gravel Pit December2022 I-1 Lewicki&Associates