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57 <br /> <br />GUIDELINES TALE <br />USDI Bureau of Reclamation <br />r~ <br />~J <br />• <br />Illustration 8, 1•n~c ~ <br />Fac [ors Dcgrcc of $ul[ab (lity <br />Af Cec sing Usc <br /> Coad Fs lr Poor <br />aoist emts iscency Vcry Eriable, Loose, Finn Vcry firm, <br /> frloblc ex[r~mcly llrm <br />Tax cure fsl, vfsL, 1, cl, scl, sicl, s, Is, c end <br /> s[L, sl, sc lE ac iE 2:L clay sic iE Z:1 <br /> L l clay is is dnm lna nc; c cLny Ls do:ai non[ <br /> dominant and sic if 1:1 <br /> clay is dam innnt <br />Thickness of mnlerial More than 16" B-16" Laos than k" <br />(g<ncrally uppcr- <br />nos[ parr of pro CLl c) <br />C uarsc fragments Less than 7% 3•l5': More [Lan l5% <br />pert cn[, by ~wlmnc <br />Snl'uhle salts: coq- Less than 4 4-6 nrnhos/cm :arc than D rurhus/cm <br />co uJuctivlry of mmhos/<m <br />sa to ration ortf9c[ <br />Z~J. ._ <br />Stonlnc~s class - 0 I 2,7,4 and 5 <br />Slope Less than fl% 8-IS% ,1o rc than 15% <br />Soil draj^agc DraincUe class rot dece mining Foarly drained, <br />t Lass ~~ if belt cr than poorly drained very poorly drained <br />I1LM MAf1UAL <br />Fcl. 7-'•i <br />1//./71, <br />