2009-12-21_PERMIT FILE - M2009094

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EXHIBIT C.H.1 1 of 2 Map Unit Description Alamosa Area, Colorado [Minor map unit components are excluded from this report] Map unit: CpB - Corlett- Hooper complex, undulating Component: Corlett, undulating (45 %) The Corlett, undulating component makes up 45 percent of the "map unit. Slopes are 0 to 15 percent. This,component is on dunes. The parent material consists of eolian. deposits. Depth to a root restrictive layer is greater than 60 inches:" The natural drainage ' class is moderatelywell.drained: Water movementin the: most restrictive layer is.high..Avoilable water to a depth 60 inches"is low. Shrink - swell potential is low. This soil is not flooded: It is not ponded. A seasonal zone.'o f water saturation ;is at57 inches, during; June, July, August. Organic matter content in the surface.horizon is about 0 percent. This.component.isan the:R051XY312C0 Sand " Hummocks ecological site.: Nonirrigated land capability classification. is 7s. This soil does not meet hydric'cntena. The calcium carbonate equivalent within 40 inches, typically, . does not exceed 8 -percent The soil has. moderately "salind'honzon within 30 "inches of the sort " surface. The soil has a moderately sodic horizon within 30 inches of the soil surface. Component: Hooper, undulating (40 %) The Hooper, undulating component makes up 40 percent of the map unit. Slopes are 0 to 1 percent. This component is on falling dunes. The parent material consists of alluvium. Depth to a root restrictive layer is greater than 60 inches. The natural drainage class is well drained. Water movement in the most restrictive layer is low. Available water to a depth of 60 inches is very low. Shrink -swell potential is low. This soil is not flooded. It is not ponded. A seasonal zone of water saturation is at 60 inches during June, July, August, September. Organic matter content in the surface horizon is about 1 percent. This component is in the R051XY263CO Salt Flats ecological site. Nonirrigated land capability classification is 7s. This soil does not meet hydric criteria. The calcium carbonate equivalent within 40 inches, typically, does not exceed 8 percent. The soil has a moderately saline horizon within 30 inches of the soil surface. The soil has a strongly sodic horizon within 30 inches of the soil surface. Map unit: Ha - Hapney loam Component: Hapney (85 %) The Hapney component makes up 85 percent of the.ap unit. Slopes are 0 to 1 percent. This component is on: flood plains >on valley m floors. The parent material consists of alluvium. Depth "to a root restrictive layer is greater.than 60 inches. The natural drainage "class <is well drained. Water movement in the most restrictive layer is moderately low. Available water . to a deptii_of d0nches is:moderate. Shrink - swell potential. is moderate. This soil is not flooded. If is not ponded. A'seasonal zone of water saturatiomisiat 54 inches during " June; July, August, September .Organicmatter.content in the surface horizon ' "about "2 percent. This,componentiIs . n the R051XY263CO:Salt. Flats ecological site. Noni, gatedland:capability classification is 7s: Irrigated land "capability;classification is 4s. This soil does not meet hydric criteria. The calcium carbonate equivalent within 40 inches, typically, does, not exceed 3 percent. Theaoi/ has a " slightly saline horizon within 30 inches of the soil surface. Map unit: Ho - Hooper loamy sand Component: Hooper (85 %) The Hooper component makes ,up 85 percent of the map unit. Slopes are 0 to 1 percent:, " This component is on: flood plains on valley floors. The parent material. consists of alluvium. Depth to a root restrictive layer is greater than ,66riches . The natural drainage'class is well drained. Water movement in the most restrictive layer is low. Available water to! depth of 60 inches is v ,. y ow. Shrink -swell potential is low. This sod is not flooded. It is not ponded: A'seasonal zone of water saturation is 60 inches during June; July, "August September. Organic matter content in the surface horizon is about 1 percent::This component is in the R051XY263C0 Salt Flats ecological site. Nonirrigated land capability classification is 7s. Irrigated land capabilityclassificabon is 6s. This soil does not meet.hydric criteria. The calcium carbonate equivalent within,40.inches, typically does not exceed, 8, Aercent The soil has a moderately saline horizon within 30 inches of the soil surface: The soil has a strongly sodic.horizon within 30 inch es of thesoil.surface. Map unit: Hp - Hooper clay loam Component: Hooper (85 %) The Hooper component makes up 85 percent of the map unit. Slopes are 0 to 1 percent. This component is on flood plains on valley floors. The parent material consists of alluvium. Depth to a root restrictive layer is greater than :60 inches. The natural drainage class is well drained. Water movement in the most restrictive layer is low. Availab/emater to a depth of 60 inches is very` ow. Shrink swell,. potential is low. This soil is not flooded. It is not ponded. A. seasonal zone of water saturation is at, 60,inches.,dunng June; July, August USDA Natural Resources Survey Area Version: 6 Conservation Service Survey Area Version Date: 01/31/2008 Page 1 of 3