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<br />auk n,~ .v'•-.+ vow wa w.r a ~.Jvv ~avniMa w.. ,w~-~.- <br />'sp,... -efgR+9 rat`"`."„nr ~.. '' •^ 1 Y^ ~ ~ _~ ,- ~ .-~. t <br />1 Yy `i'' ~ T4 yeti ~{: "Cyh• ; _.a~; z. Y a ~}}. . ~ _i~:, <br />• ¢ - {EC~_ ~ ~j°i4° A1.1~ samples =.aested"reported •valuess~,less -.than 4,. Nyoming ~ - <br />~< -r. 6u1de1Tne-Na:..3_indicatas thls-has~a,~gaod.sof•1•~-suitability <br />~.Sat`.E-`-'..~ A11 samples tested ranged.-from-38Z=55x•, Myaning Guideline . . <br />• No. 3 indicates this has'-°a,:gaod-.fair sail suitability. ` <br />rating. _ _ .. <br />'~SI1R. A11 samples tested reported values'.less than '6; Wyoming, <br />Guideline No. 3 indicates this has a: goad soil. suitabi1.ity; <br />rating. .. .--~:;. <br />/Nltrate This does appear to be a. problem; as-;flt.can be-easily added - <br />Nitrogen to the overburden as needed. ~ -- - -->;_?~„ - - -_. <br />~ Phosphorus A11 samples tested fell within the 0-7 ppm+~recommendations• - <br />contained in the Guide to Fertilizer Recommendations in <br />Colorado. It is an icipa e a a me o s ng _ <br />s. acre of P 05 will be added to the overburden= It does~•`• ^ <br />not appear tha~ Lhi s wi 11 be a serious problear... - ; • - -~ ._:~.;-. <br />~ Potassium Of all the samples tested only one had a concentration le'ss.: -. -`- w <br />• than 60 ppm, and that sample had a concentration of 56 ppm. " <br />- It appears that potassium will not be a problem:=~: -, <br />~ Texture Of al l the samples only two reported a SIC .texture. class- - <br />(also which indicated this has a poor soil suitability. All the <br />addresses others were either CL, L-CL, or L, which have a fair (CL) ~~ <br />x sand, or good (L) sail suitability. Given the amount of mixing <br />silt, clay) that will occur during removal and replacement, it does not <br />appear that texture will be a problem. Refer to Wyoming <br />Guideline No. 3 for texture classification and rating.n <br />neaK <br />Aluminum Munshower (1983) advised that aluminum does not to be - <br />analyzed unless the overburden pH is less than 5. his is <br />due to the fact that the presence of exchangeable aluminum <br />is very limited in environments with a pH greater than 5. <br />Given the pH of the overburden (6.9 and 6.5) and the low <br />concentration of aluminum (<0.2 ppm) it is not anticipated <br />that aluminum toxicity.wii.l.be a-problem. - <br />Copper The samples 1n which this parameter was analyzed were fran <br />depths of 30"-36". This material is not proposed as a. <br />- plant growth media as the top 6" of the overburden will be ~ <br />removed and stockpiled for reclamation use... Therefore, <br />copper toxicity should-not be a problem.- - _ ,~,--,;•-• <br />- ~;- <br />f~•L, 4~. <br />