2015-10-06_PERMIT FILE - C1981019A (3)

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'Table 2.04.9-20 Soil Map Unit Descriptions (continued) �y�, •.�W. Teitt e s o-il.' p ' S o I " W L• itis Fetors �a.. - '!, Tom,.'•. ' s'd ' �:, ' �` •'T;�" " ..•f.< ANf: •I.� aMl. 'ri �'�� `M r ""i J'�L` d'.. Via:.-. _/ .r ,�t$.n�f '%�>v�iY•5�14n..i" �'W.•F` 'w�.°i 1�'r.A.r `r4� 1`"� k�.u. Thomburoi 50 Loam 14 10 Deeper pockets of loess and areas where sandstone is Lrthic Haplocryolls (Duffymont 40 0-20 H�1i rock content or bedrock at deeper in the profile yield Skyway v and other similar Unit occurs on ridge tops with sandstone layers bused similar)35 Loam 6 6 shallow depth soils. Few rock outcrops present. by loess or weathered to shallow depths Argilhc horizons (Cryalf'Arperyolls) occur where shale is more prevalent in the colluvium Where the & shale colluvium is buried deep with some iIluvial clay On slopes that are not dvectly windward on the south 41 10-60 Thornburgh 65 Gravelly -L 10 10 Higher rock or clay/shale below 20 they could potentially be classified as Palecryolls end. Further north, this unit occurs on the north facing Loaminches (Northwater) Some pockets of loess create Pachic slope of east -west drainages where loess is deposited sods (Rhone v /Cochetopa) Occasional rock outcrop in thin layers over colluvium (<10%) More clay, less nutrients with Some less developed (Havre and surular) and more This snap unit occurs on the terraces and outwash 42 0-10 Adderton 75 Clay Loam 15 20 depth developed (Rhone and sunilar) soils are present slopes ofthe upper Collom Gulch and Lower Wilson drainages 43 10-25 Skyway 75 Loam I S 6 High rock content and bedrock at Some shallower (lithic) and deeper (Lamphier) sods This unit occurs on slopes with shallow loess depth are present to a lunited extent accumulation over sandstone colluvium and bedrock Very deep soils formed from accumulations of aeohan deposits. This unit occurs in the swales and 44 0-35 Lamphier 90 Learn & Silt 20 25 Low nutrients and higher clay Some more skeletal and shallower components headwaters in the southern portion ofthe study area Loam (Rhone v) Sod below 45 inches is often be very good plant growth material, especially near the center of swales and drainage bottoms Low nutrients and less This unit has the deepest profiles in the study area Loam & Silt development, although most ofthe Cumulic Haplocryolls may be present but may be only Organic [natter is present in the soil beyond 60" with 45 0-20 Lamphier 90 Loam 20 30 unit has suitable soil beyond 60 finely distinguished from Lamphier very few limiting factors The proposed salvage depths inches take the best ofthe material in which most ofthe roots were found Lamphier 45 Loam Low nutrients and higher (relative) 46 10-50 18 15 coarse fragments and clay at depth Some skeletal profiles and pedons with arglhc Similar to headwaters Lamphier unit, but with more horizons are present, but not limiting coarse fraennents and shallower depth to bedrock Rhone v High coarse fragments and clay at (Fine-Loamy/Loamy-Skeletal) 35 Loam depth Lamphier 35 Loam Deep loess deposits on steep slopes in the southern 47 10-50 18 IS High coarse fragments and clay at Some skeletal or shallower (e g, Rhone) and non- end ofthe project area This unit occurs on the Cochetopa 35 Loam depth. pachic Cryolls (e g. Owen Creek and Jerry) leeward aspects ofthe slopes Slumping occurs frequently. Rhone 50 12 18 Hi Rock Content These soils formed from loess deposited on steep Some ofthe enol lic epipedons are thinner slopes in the southwest portion ofthe survey area. 48 20-70 Skyway 35 Loam 20 6 Bedrock (Thornburgh) or thicker (Lamphier) Sloughing was observed in many ofthe landscapes Lamphier occurs at the base of slopes where soil accumulates