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West E!k Mine <br />~ble 22 Original and Current Soil Classification Designations, West Elk Mine <br />Correlating 1976,1980,1993, and 1994 Mapping, Cont. <br /> <br />Origiusl* <br />Bra Unit 1980** <br />Ma Unit CYrrreut <br />IlVIa U ' s Agency <br />a6ou Soil <br />Classification Soil Series or Assocration <br /> 225 SCS, USFS Herm-FuQhes lex <br /> 226 SCS,USFS Ham-Fughes-Kolob <br />Farm co lex <br /> 227 SCS,USFS Broad Capon-Scout <br />F co lex <br /> 229 SCS,USIS C °oc ts-Cn~oborolls-Kubble <br /> 230 SCS,USFS Hapbbomlls-Ustochrepts-Rock <br />~P <br /> 236 USFS S6aaa-Sandia Family- <br />Kolob F co lex <br /> 240 SCS,USFS FugfiesL7necanti s[ouy <br />loam <br /> 250 SCS,USFS <br /> 302 SCS,USFS C~ulic loborolls <br />` Original map designations from 1976 survey. <br />° Addtiorral map arils from 1980 swvey. <br />DMIIrdPe <br />• Ivfost of the soils of the study area are well drained. Only units 20 and 27 have any limitations in this <br />regard and both occur over very small acreage. Unit 20 in its nanual state is poorly to somewhat <br />poorly drained with water tables at or within tw=o feet of the ground surface most of the year. Its <br />degree of drainage is poor enough so that it influences the type of native vegetation It is an <br />important factor in regulating stream flow in the late summer months and as solaces of water for <br />wildlife. <br />Flood Hazard <br />Units 20, 26, X26, 27, and 300 are particularly susceptible to frequent overflow. Most of the other <br />soils of the area may at times of heavy rainfall receive some nmo~ but flood waters concentrate in <br />areas of the units listed above malting them particularly susceptible to flood damage. <br />Units 20, 26, and X26 occur on the floor and sides of small upland drains and smaller streams where <br />excess water from surrounding slopes concentrates in periods of intense runoff. Units 27 and 300 <br />occur on the floodplains of the l~dorth Fork of the Gunnison River. Though annual flooding of these <br />areas no longer occurs due to upstream dams, some flood damage potential still exists. <br />Mass Movement <br />• Some soils on steep slopes of the West Elk Mine study area are subject to some mass movement. <br />However, these soils are not associated with the location of surface facility foundations. Such <br />204-134 /N4 P/t05; 894787/; RevBed.hoa /995 PR06; .Nmch 2006 PR/0 <br />