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• ability capacity. Roots generally do not and cannot penes:rate to a <br />greater depth than about 20 inches. The surface runoff i:c rapid and the <br />erosion potential is high. <br />No unusual chemical properties are encountered with this soil. <br />The pH ranges from 7.4 to 8.4 and the salinity is less th<<n 2 mmohs/cm. <br />Nevertheless, it is not considered a good source for topsoil but can <br />develop moderately rich natural vegetation communities. <br />On this site it is likely the soil was a bit deeper than <br />what is normally encountered on this soil. This is because the basin <br />type of topography probably allowed a greater accumulation of soil <br />materials due to erosion deposition from adjacent slopes as well as <br />a slightly more moist environment which would favor soil development <br />• processes. In places soil may have been 2 to 3 feet deep, but this <br />accumulation was at the expense of less soil depth on the slopes. <br />Soil samples taken at the site in February 1978 were analyzed <br />by the Soil Testing Laboratory at Colorado State University. <br />Generally, the analysis showed a chemistry similar to the native soil, <br />but nutrient levels were much less than was found in samples from the <br />other quarries. Although micronutrient levels were found to be quite <br />adequate, the macronutrients were very deficient. Fertilizer recommenda- <br />tions indicate that 40 lbs/ acre of nitrogen and 80 lbs/ acre of <br />phosphorous and potassium are needed to provide an adequate nutrient <br />level. Whereas deficiencies in these nutrients were much less than <br />expected on the Queen's Canyon Quarry, on this quarry the deficiencies <br />were somewhat more deficient than expected. This is probably due to <br />• <br />S-I-2 <br />