2009-03-04_PERMIT FILE - C1981008A

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are located adjacent to Calamity Draw. Tuttle Creek flows from east to west along the northern border of the study area. Many of the irrigation ditches which cross the study area empty into Calamity Draw and Tuttle Creek. Aquolls and Aquepts soils were found primarily as a result of flood irrigation accumulating in the drainages. These soils have characteristics indicating they are wet throughout most of the soil profile for most of the year. Gently sloping uplands comprise most of the study area. Progresso and Pinon soils are found on these areas. Pinon is less than 20 inches to bedrock, whereas Progresso is 20 to 40 inches. Progresso soils developed in residuum from interbedded sandstone and shale and have well developed Bt argillic horizons and underlying Bk calcic horizons. The Barx soil is found as an inclusion with Progresso and Pinon. Pinon soils are developing in thin residuum from sandstone in areas where sandstone ledge rock is near or at the surface. Weathered shale bedrock is often found beneath the relatively thin sandstone ledge rock. Pinon soils have a zone of secondary calcium carbonate accumulation. The Barx soil is deep (40 to 60 inches to either sandstone or shale bedrock) to very deep (greater than 60 inches to either sandstone or shale bedrock) and has a well developed Bt argillic and Bk calcic horizon. It has loam, sandy clay loam, or clay loam textures in the Bt particle size control section, and is developing in wind deposited loess over residuum from sandstone and shale at depth in the soil profile. The Barx soil is found on the gently sloping mesa-like surface in the 4 southeast corner of the study area. Soils and Geomorphology - 1996 The study area included the Garvey and Burbridge properties located within the original 1988 survey. This survey updated map unit delineations and provided detailed topsoil salvage depths for the above properties. (Revised June 2008) 2.04.9-7