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Baseline Technical Rep <br /> Soils and Biological Resourceti, <br /> Amedment No. 11 Project Area <br /> ARCADIS <br /> Table 2-2 Amendment 11 Project Area Soil Characteristics <br /> 17—Catamount-Gulley Complex 79-Platdon 82—Quander-Bushpark very gravelly loams 88—Rofork very 97—Seitz very gravelly loam <br /> loam, gravelly sandy loam <br /> frequently <br /> Catamount Guffey flooded Quander Bush ark <br /> Percentage of Map Unit' 60 30 90 60 30 90 90 <br /> Sloe % 15-40 15-40 30-70 5-40 10-40 5-55 20-50 <br /> Aspect All All All All All Mostly south Mostly north <br /> Landforms Mountainflank,mountaintop Mountainflank, Floodplains Mountainflank, Mountainflank,mountainbase Mountainflank, Mountainflank <br /> mountaintop mountainbase mountaintop <br /> Parent Material kind=slope alluvium over kind=colluvium over Alluvium kind=colluvium kind=residuum kind=slope alluvium, kind=colluvium,slope alluvium <br /> residuum residuum source=phonolite, source=phonolite,latite- residuum source=trachyte,breccias,tuff <br /> source=granite source=granite latite-phonolite,breccia phonolite,breccia from phonolite source=granite, <br /> from phonolite&latite, &latite,trachydolerite gneiss <br /> trach dolerite <br /> Native Plant Community Conifer-dominated Woodland Mixed Conifer-Aspen Wet Meadow Natural Grassland Natural Grassland,Aspen- Natural Grassland Conifer-dominated Woodland <br /> Woodland dominated Woodland <br /> Typical Texture Profile 0 to 1"=decomposed plant 0 to 1"decomposed 0 to 18"=loam 0 to 9"=gravelly loam 0 to 8"=fine gravelly silt loam 0 to 5"=gravelly 0 to 4"=conifer litter <br /> material plant material 18 to 30"=very 9 to 24"=very cobbly 8 to 16"=fine gravelly silt loam sandy loam 4 to 16"=very gravelly loam to silt <br /> 1 to 3"=gravelly sandy loam 1 to 13"=very gravelly sandy silty clay loam 16 to 25"=very cobbly silt loam 5 to 9"=extremely loam <br /> 3 to 9"=veryravel) sand gravelly coarse clay loam 24-60"=extreme) gravelly sandy loam 18 to 26"=extreme) cobbly silt loam <br /> gravelly Y Y 25 to 30+"=extremely cobbly Y Y <br /> loam sandy loam 30 to 60"= cobbly silty clay silty loam 9 to 14"=extremely 26+"=extremely cobbly silt loam <br /> 9 to 13"=extremely gravelly 13 to 27"=very extremely loam gravelly coarse sand <br /> loamy coarse sand gravelly clay loam gravelly sand <br /> Depth Class Very deep Moderately Deep Very Deep Very deep Shallow Shallow Very deep <br /> Drainage Class Excessively Well Poorly to Very Well Well Well Well <br /> Poor) <br /> Organic Matter % 5 5 2 1 1 2 3 <br /> H standard units 6.0 6.0 7.3 6.7 6.7 6.3 6.7 <br /> Salinity mmhoslcm <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <br /> Available Water Capacity 0.06 0.06 0.05 0.03 0.03 0.05 0.04 <br /> in/in <br /> Saturated Hydraulic 16 16 216 12 12 24 22 <br /> Conductivity(pm/second) <br /> NRCS Erosion Hazard(Off- Moderate Moderate Severe Moderate Moderate Moderate Moderate <br /> Road,Off-Trail <br /> Notes: <br /> Remaining percentages of map units consist of contrasting inclusions. <br /> Soil map unit 76(Pits,mine-Dumps,mine complex)is not included due to lack of appreciable soils for reclamation salvage. <br /> Site-specific data supplemented by NRCS soil survey data as applicable. Representative values(e.g.,soil profile weighted average)for each soil unit component are provided. <br /> Abbreviations:mmho/cm=millimho per centimeter;in/in=inch per inch;pm/second=micrometers per second <br />