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4-27 Laboratory analyses of the sampled soils was conducted by F b L • Labs, formerly in Fort Collins, Colorado, and by Colorado Analyt- ical Consultants in Brighton, Colorado. The results from the analysis of all of the samples are compiled by series on one table; the original laboratory methods and results are included as part of Appendix Es. The mapping, pedon descriptions and chemical analyses were compiled and interpreted for this report. Soils were classi- fied to the series level and potential soil use information was obtained from the SCS. The soils in the addendum area were evaluated as a source material for reclamation, based on field data, soil information acquired during the field visits, from other soils assessments (WRD 1980a; 1980b; 1981), chemical and physical analyses, and SCS data. 4.4.2 Soil Series Descriptions The important characteristics of each major soil are listed in • Table 4.4-1S. Characteristics include soil depth, drainage class, slopes, parent material, and landform. The color, tex- ture, and thickness of the surface, subsoil, and substratum of a typical profile are described. The dominant native vege- tation species, permeability, available water-holding capacity, and effective rooting depth for the pedon are also included. The table contains all the information usually reported in SCS detailed series descriptions. All detailed pedon descriptions of representative profiles are presented as part of Appendix Es. Soils within the addendum area range from shallow to very deep, with clayey to sandy textures. Shallow soils overlie bedrock at depths less than 20 inches. They occur on gentle to extremely steep slopes. These soils range in texture from silty clay looms to very gravelly looms. The deeper soils are formed in alluvium, colluvium, residuum, or eolian deposits and occur on nearly level to moderately sloping flood plains and terraces, and nearly •