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i <br />' ~XHi <br />' IT I <br /> SG I LS I iVF <br />Q~iMAT ~1 ON <br />' The soils that occ=ur on this nearly level lan sca¢e are <br /> generally deed, greater that 60 inches, and farmed in Recent <br /> alluvium. Sheet 4 of 4 is a sails map of the propo ed permit <br />' area delineating the major soils by tar,onomic unit and 6y identi- <br /> <br />I fied soil series. <br /> The indicated soils are underlain by gravels. he gravel <br />' averages 20 feet deep throughout the mining area. <br /> The soil most plentiful in the permit area is he Altvan <br /> sandy loam. This deep somewhat ercessi~.'ely drained oil has a <br /> gra;iish brown loam surface about ten inches thick. he a.^.cer- <br /> iying material in the permi+~ area is stratified sand nc gravel, <br /> available water capacity is Zcw, permability is rapid nd surface <br /> runoff and erosion hzzard are bath low. <br /> The ^ther two dominate mapping units are the =_oi s of the <br /> ta::onomic units o~ Aquolls znd Aquents, ar.d Aquolls an d Acuepts. <br /> teeth o= these ta:;onomic units have formed over gravel and are <br /> d=ep igreater than 40 inches) poorly drain=d soils wi h loamy or <br />' clayey surfaces and underlying horizons. There ge erall•r is <br /> little pedoger.ic development between the surface an subsoil, <br /> therefore negating the need for "topsoil" separation, The ccm- <br />' rlete solLrm. of these soils ran be considered "t^ps ii" or a <br /> wetter term would be plant-growth medium. <br /> The Aquolls and P.quent soils ha•:e dark colored sal urns which <br />' is sL:ogest:ve of --e':atively t.igh organic mat±er ~anten which i <br /> 2::peCt2d consisering their formation process. Gener -11y, the <br /> profiles are mottles, ineicating seasonabl•~ high wale tables. <br />' 'he water tables can be expected to 6e n=ar the surf ac in the <br /> =_¢r:ng and four feet or mere below the surface in the i to -=a11. <br />' Soils in the ¢ermit area ha•~e surface horizons oet:v en 10 and <br /> 24 inches thic <br />k_ that are considered _suitable ~_ - ew . <br /> _ <br />med3Lm. ili:cing the surfaces of these soils should of cause <br /> adverse problems anc if anything WCUI•J' er.he.ncs surface te::tune=_, <br />' strLrcture, ar.d other physical and chemical properties. <br /> <br /> <br /> <br /> <br /> I-1 <br />1 <br />