64
<br />SOIL SURVEY
<br />TABLE 5. Estimated engineering
<br /> Depth to Classi cation Coarse
<br /> seasonal Depth fraction
<br />Soil series and high from USDA texture greater
<br />map symbols water surface than 3
<br /> table inches
<br /> Unified AASHTO
<br /> r.rr r~~e., rrrrem
<br />Stroupe: StE________________ >6 0-0 Stony loam, very stony loam__._ SM, ML A-4 45-70
<br /> 9-25 Stony clay, very stony clay, GC A-6, A-7, A-2 30-50
<br /> very stony clay loam.
<br /> 25 Unweathered bedrock.
<br />Table 5fountain: TM__._..._ >6 0-7 Loam, fine sandy loam, clay GL-hf L, CL, A-4 0
<br /> loam. SC-F M, SC
<br /> 7-60 Loam, silt loam, silty clay loam_ CL-SS L, CL A-4 0
<br />• Travessilla: ToD, TrG...._.. >6 0-14 Sandy loam, gravelly sandy Sbf, SC-SM A-? 0-'L5
<br />Rock outcrop par[ of TrG loam.
<br />is too variable to esti- 14 Unweathered bedrock.
<br />mate.
<br />Yalent: Va ... .............. >6 0-4 Fine sand, loamy sand_____-_.. SM, SC-SM A-^ 0
<br /> 4-60 Fine sand, sand______________ SP-SM,SM A-2, A-3 0
<br />Vumer: VmE _ _ _ _ _ _ _ _ _ _ _ _ _ > 6 0-12 Very stony loam, very stony GC A-6 30-60
<br />Ruck outcrop part is too clay loam.
<br />vuriable to estimate. 12 Unweathered bedrock.
<br />Vona:
<br />Vo ........................ 76 0-8 Sandy loam_____________.._ SM, SC-SM A-2, A-1 0
<br /> 8-:10 Fine sandy loam, sandy loam___ SM, SC-SM A-2, A-3 0
<br /> 30-60 Sandy loam, loamy fine sand.__- SM A-2 0
<br />Vn, Vs2___________________ >6 0-8 Loamy fine sand, loamy sand-_. SM A-2 0
<br />Fur Otero part of Vs2, 8-30 Fine sandy loam, sandy loam_ _ _ SM, SC-SM A-2, A-4 0
<br />see Otero series. 30-60 Sandy loam, loamy fine sand_.. _ Sbl A-'3 0
<br />Wetmore: WE______________ >6 0-1.3 Gravelly coarse sandy loam____. SC-SM, SC A-2 5-20
<br />For Mortenson part, see 1'?-18 Gravelly coarse sandy loam, SC, GC A-'? 5-40
<br />Mortenson series. sandy clay loam.
<br /> 18 Unweathered bedrock.
<br />Wiley: Wk_________________ >6 0-6 Silt loam, loam__________....__ CL-tit L, CL A-4, A-6 0
<br />For Kim part, see Kim 6-15 Silty clay loam, silt loam..... _ _ CL A-6 0
<br />series. 15-50 Silt loam, silty clay loam, loam_ CL-ML, CL A-4, A-6 0
<br /> 50-60 Wen[hered shale and s;mds[one.
<br />Wunnser: Wo_________ __ __ >6 0-4 Silt loom. _.._____ .._ AI L, CL A1L A-•1 0
<br /> 4-33 Clay loam, clay, silty clay loam_ CL A-6, A-7 0
<br /> 33 Unweathered bedrock.
<br />Depth to bedrock is the distance from the surface
<br />• of Che ,oil to the rock layer (ti y;. 7).
<br />Depth to seasonal high water table is the distance
<br />from the surface of the soil to the highs,[ level that
<br />ground ++•ater reaches in the soil in most }ears.
<br />Soil texture is described in table 5 in the standard
<br />terms used by the Department of Agriculture. These
<br />terms take into account the relative percentages of
<br />sand, silt, and clay in soil material that is less than 2
<br />millimeters in diameter. "Loam," for example, is soil
<br />material that is 7 to 27 percent clay, 28 to 50 percent
<br />silt, and less than 52 pet•cent sand. If the soil contains
<br />gt•avel or other particles coarser than sand, an ap-
<br />propriate modifier is added, for example, "gravelly
<br />loamy sand." "Sand," "silt," "clay," and some of the
<br />other terms used are defined in the Glossary of this
<br />soil survey.
<br />Permeability is that quality
<br />tri lrunsniit water cir air. IL i>
<br />of tho..e ;nil ch.u•~irtcristics
<br />partii•ularly atru+~ture and te:
<br />table 5 do not take into accoun
<br />transient .oil features as plow
<br />available water capacity is
<br />hold water for use by most pl;
<br />fined as the difference betvvee
<br />in the soil at field capacity and
<br />ing point of most crop plants.
<br />Reaction is the degree of at
<br />soil, expressed as a pH value. '
<br />rued to describe soil t•eactiot
<br />Glossary.
<br />Salinity refers to the amour
<br />soil. It is expressed as the elect
<br />of a soil that enable; it
<br />cstinutlcrl un the basis
<br />observed in the field,
<br />tore. The estimates in
<br />lateral seepage or such
<br />.ass and surface crusts.
<br />the ability of soils to
<br />nts. It is commonly de-
<br />i the amount of water
<br />the amount at the wilt-
<br />dity or alkalinity of :i
<br />he pH value and term.;
<br />are explained in the:
<br />of soluble salting in the
<br />cal conductivity of thr
<br />
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