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NONIF r,NNI[AL SOILS DESCA~ AEPOAI <br />Environnenl, In <br />Map Soil none and description <br />Symbol <br />AI[van Ipam, 0 [0 1 percent slopes <br />the Al Ivan soil is a deep, xell drained soil. It is <br />' fornM on terraces iron alluvial material. the surface <br />rs a loam. the suhsorl is clay lean. the underlying <br />material is a calcareous Ipamy sand. the soils have <br />modem Le De rmeabi lily. their available xa[er holding <br />; capacity is moderate. Aoots penetrate l0 20 to d0 <br />inches. Aunofl is slox and the erosion harard due to <br />xind is moderate. <br />pl Ivan loam, I tp 3 percent slopes <br />the Altvan soil is a deep, well drained soil. It is <br />' Ip reed on terraces fron alluvial na[erial. the surface <br />is a loan. the subsoil is clay loan. the underlying <br />material is a calcareous loony sand. the soils have <br />node ra to peneability. their available xa[er holding <br />capacl ly is moderate. Aoots penetrate to 20 to 40 <br />; inches. Aunoff rs slox and the erns on harard due to <br />xind is noderate. <br />f ; Aquolls and Aquents, Gravelly Subst ra tux <br />; IhiS map unit is on bplton lands and flpodplains of all <br />; major streans in [he survey area. this unit consists of <br />; 50 Dercenl Aquolls and SS percent Aquents soils. These <br />soils are deep, and poorly drained. they formed in <br />recent alluviun. the surface is a nildly alkaline to <br />moderately alkaline loony or clayey layer, as xell as <br />; the underlying naterial xhich is underlain by sand or <br />sand and gravel xithin dg inches. the rater table is at <br />or near Lhe sur Lace, creating a hydric soil condition. <br />the erosion harard due to xind is lox. <br />10 ; Bankard sandy loax, p to 1 percent slopes <br />the Bankard soil is a deep, sonexhat excessively <br />drained soil It is loaned on floodplains fron <br />stratified recent alluviun. the surface is a sandy <br />; loan. the underlying material is a calcareous sand <br />{ strati tied with thin lenses of sandy loam, loam, and <br />line gravel. the soils have xoderately rapid <br />perneabi lily. their available xa ter holding capacity <br />is lax. Foots penetrate to 60 inches or nor e. Nunpit <br />is slox and the erosion haaard due to xind is severe. <br />t6 ; Cal by lean, 1 tp 5 percent slopes <br />This is a deep well drained soil on upland hill and <br />ridges. ![ loaned in calcareous eplian deppsi is <br />typically the surface is a Dale brown loae about 10 in. <br />thick. the underlying na[erial is a very pale brown <br />; silt loan [o a depth of t0 in. Peneabili [y is <br />noderate. Available water holding capacity is high. the <br />ellective rooting depth is 60 in. or nore. Surface <br />runoff is nediw tp rapid, and the hazard pf xa[er <br />erosion is xpdera[e. <br /> <br />21 i Dacono clay loan, 0 t0 1 percent slopes <br />