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2.04.9 <br /> <br /> RESPONSE continued <br /> Portions of the soil classification and mapping were completed by <br /> the Soil Conservation Service (SCSI) , located in Craig, Colorado. <br /> Soil samples taken by VTN were analyzed chemically by Colorado <br /> Analytical Labs and samples taken by the soil scientist at Yampa <br /> Mining Co. were analzzed by Camp, Dresser add McKee of <br /> Wheatridge, Colorado. <br /> Methods <br /> A soil survey map of the permit area of 3rd order mapping <br /> intensity was obtained from the Soil Conservation Service in <br /> Craig, Colorado. This map was a rough guide in conducting a <br /> 2nd order soil survey of the mine permit area by VTN and <br /> Yampa Mining Co. <br />_~ Soil samples and description sites were selected by considering <br /> aspect, slope, vegetation, and previous soil classification by the <br /> SCS. Soil sampling sites were excavated to a depth of 152 cm <br /> (60 in.) or to bedrock. Soil profiles were examined and des- <br /> cribed according to USDA Handbook No. 436, Soil Taxonomy (5). <br /> Soil horizons were tested for the following parameters in accor- <br /> dance with Colorado Mined Land Reclamation requirements. <br /> Chemical Parameters <br /> 1. pH, paste <br /> 2. Electrical Conductivity (m mhos/cm) <br /> 3. Moisture Saturation ($) <br /> 4. Sodium, Calcium, and Magnesium Paste (meg/1) <br /> 5. Sodium Adsorption Ratio (SAR) <br /> 6. Organic Matter ($) <br /> 7. Phosphorus-available (ppm) <br /> 8. Potassium-available (ppm) <br />. 9. Particle size distribution <br />