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1999 Soil Sampling: Seneca Mine, Hayden Colorado Phosphorous • Nitrous Nitrogen Potassium Zinc Iron Manganese Copper Sodium Adsorption Ratio Organic Matter pH Electrical conductivity Percent Saturation Vegetation- Vegetation was observed qualitatively for vigor, color, growth form, and overall vegetative appearance both above and below ground. Above ground plants were observed for ground cover density, basal area, growth form vigor, color and height. Below ground plant roots were observed for vigor, abundance, size, distribution, and depth of penetration. A general site photo was taken at each sample location along with 2 photos of the ground taken from a height of 6 feet at a 60 degree angle to the ground. • Results Results for the Seneca II and Seneca II-W follow: Seneca II 2 sites were sampled on approximately 50 acres of land. Field descriptions are located in Appendix IV and lab data is located in Appendix II. Topsoil- Topsoil in both sample pits classifies as suitable topsoil (Appendix III, Table-2). The results follow: Depth- The average depth of topsoil is 11 inches (.9 feet). Depth of topsoil ranges 10 to 12 inches (.8 to 1.0 feet). The topsoil in both sample pits consisted of two horizons. The upper horizon averages 5 inches of thickness and ranges in depth from 5 to 5 inches in thickness. The lower topsoil horizon averages 6 inches in thickness and ranges from 5 to 7 inches in thickness. The difference in horizons is due to structure and dry and moist consistence discussed below. All other characteristics between horizons are the same. Textures- Textures are loams. Clay content averages 25 percent and ranges 22 to 27 percent, sand content averages 40 percent and ranges 39 to 40 . percent. Silt content averages 35 percent and ranges 34 to 38 percent. Page 5 of 11 02/09/00