2017-02-03_PERMIT FILE - C1980004 (25)

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strongly effervescent; from lab data: pH=8.7 (strongly alkaline), EC=3.95 (very slightly saline), SAR=26.9 (highly sodic); OM=1.9% (medium); gradual wavy boundary. C4 horizon — 60 to 96 inches (5 to 8'); light yellowish brown (10YR 6/4) sandy loam with about 5% mixed gravels,yellowish brown (10YR 5/4) moist; massive structure; very hard dry consistence, firm moist consistence, and slightly sticky and slightly plastic wet consistence; strongly effervescent; from lab data: pH=8.2 (moderately alkaline), EC=6.21 (slightly saline), SAR=28.1 (highly sodic); OM=1.4% (medium); gradual wary boundary; did not hit bedrock. Unnamed fine sandy loam (Map Unit 1) Topsoil Suitability and Recommended Salvage Depth: Topsoil 10"/ Subsoil 10" The topsoil suitability and recommended salvage depth of Map Unit I is the same as Map Unit H. The upper 20 inches of Unnamed fine sandy loam (Map Unit 1) is entirely "suitable" (WDEQ, 1996) and could be salvaged for use in subsequent future reclamation. This topsoil and upper subsoil material is both nonsaline and nonsodic and has good soil texture and organic matter content. Below about 20 inches in depth, Unnamed fine sandy loam can have high exchangeable sodium (high SAR), low organic matter content, and coarser textures in some profiles and this lower material is not recommended for salvage. The upper 10 inches of Unnamed fine sandy loam is recommended for salvage as Topsoil and the underlying 10 inches recommended for salvage as Subsoil. 3.3 Map Unit G: Rock Outcrop — Loamy -skeletal Torriorthents complex, 15 to 90% slopes Rock Outcrop — Loamy -skeletal Torriorthents (Map Unit G) is mapped on the moderately sloping to very steep bedrock cliffs and lower slopes located on the east side of the study area. The bedrock is sedimentary strata of the Cretaceous Mesa Verde Formation which includes the dominant interbedded sandstone and shale strata but also carbonaceous shale and at least one thin coal seam. The map unit is composed of about 75 percent Rock Outcrop and very shallow soils less than 4 inches to bedrock, and about 25 percent undifferentiated Torriorthents (shallow to deep, fine -loamy to loamy-skeletal).Torriorthents are located on the lower slopes in short alluvial fan or talus slope positions, and Rock Outcrop typically on the higher, very steep terrain. The two components are interspersed in a sufficient complex pattern that does not allow separation at the mapping scale utilized for the project. Loamy -skeletal Torriorthents were fully described and sampled at one representative site, M26, located in a delineation of Map Unit G. Rock Outcrop includes raw exposures of the dominant sandstone and shale, talus areas with large rocks, and small areas with very shallow soils less than 4 inches to bedrock. -12-