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map unit is used primarily for irrigated pasture and hay crop. Barx soil is the second component <br />(30 percent) in this map unit. The Darvey and Barx soil types are both prime farmland soil in San <br />Miguel County, Colorado if the soil is irrigated by an adequate and dependable water supply. -Ais <br />of Febt unry 15, 2608, the entire acreage within the permit area south of BB Road and west of 2708 <br />Road coi itainii ig the Darve�-Barx niap unit is considei ed pi Me fai niland soil since it is more than <br />67% prime farniland soi! type, and is being handled as such by the Western Fuels - 6010rado EL6. <br />This propetty is entitely owned by Wigan. <br />Map unit 98F (Hap largrids - Endoaqueots association) occurs in natural drainage areas that <br />eventually form shallow valleys on the mesa and on the low lying area near Tuttle EreekDraw. <br />Depth to bedrock varies widely in this map unit. Haplargids with varying depths to bedrock form on <br />drainage side slopes. Endoaquepts are formed where irrigation water has accumulated in drainage <br />bottoms. In a few naturally occurring areas of water accumulation Endoaquolls have formed. <br />Eolian sands are intermixed with Cretaceous Dakota and Burro Canyon Formations in map unit <br />98G (Bowdish - Bowbac complex). Soil is generally moderately deep with significant inclusions of <br />shallow soil on convex slopes. Soil salvage in this map unit may yield slightly less than predicted. <br />Map unit 98H (Wahweap fine sandy loam) occurs on mesa side slopes that are not as steep as <br />those found in map unit 98B. Hardness of bedrock varies depending on the underlying strata. <br />Wahweap soil has the same physical and chemical properties as those soils similarly named in the <br />survey area. Wahweap is outside the range of characteristics compared to the survey area, in that <br />it occurs in an area of 7 inches mean annual precipitation. <br />Table 2.04.9 -3 represents average depths and pH of lift layers for soil salvage materials in the 1998 <br />survey area. The recommended topsoil salvage depth for each map unit is based on the average <br />of all depth samples taken for the map unit. Appendix 2.04.9 -9 lists the percent composition for <br />each soil type in a map unit. Average lift depths are used to calculate volume of salvage material <br />in table 2.04.9 -4. Lift layer A is a combination of the following horizons where present: A, Ap, Ag, <br />AB, AC, Bw, and Bt if the pH of those horizon was less than 8.0. Lift layer B is a combination of the <br />following horizons where present: AC, Bw, and Bt if the pH of those horizons was greater than 8.0 <br />August 2013 (PR 08) 2.04.9 -29 <br />