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<br />. .
<br />" SJ,cci Cicaxioris,'yuidc{y~~(~~ ~;~+rr.r-,~__,i:e::~^`:~,;,s7>,ti.%<.::~ _ ,::: - .c;.
<br />.•-' f 'S:_:. T.... -'} _ ~:': • -". a .Yi ,,...'1ni ~~::cT'{'U-`"~Y.~ r M+ If `f.. ~ ya1 !:: _. : .. - .. .. .. ...
<br />".,'it-e Preparation. Areas sttall.be cleared of trees, toy:;, brush, rubbish
<br />and other undesirably: materials. ,. An:as to b.: prc::crved, inclurliny these
<br />~.:...
<br />r•r,ntaininq vegetption;F_stre~m corridors, natural sprinqu iu other important'
<br />'raturc,~ sliall be' Prc~Pcrly •idrntificd.
<br />1<c•,ncval of soil material for use as topsoil. All ui,pcr soil horizons to
<br />t,c used in reconstructing the :;oil shall br. ry:movad from the im^~cdiate area
<br />!,i•fur•_ drilling for blasting, mining or any surface disturbance other than
<br />_• removal u` woody {,lints. ~ ~ .. ~ -.
<br />, All thy. 1. horizon shall be removed for use as sarfac~r. soil on disturbed
<br />::re:c:. li tha A hori::nr. is less than 4 indres Chick, cnouyh malarial, other
<br />U~i•ey tlJ:ruci:,~ im:a•:r]i.aty~ly Lolow tha A hori::on can be removed and aced r.o
<br />f - u!,tain thi>: thickness:. If. the tut,tl Lhickr.css oC the av:,il.,hle material
<br />i•s I!•a thin G incho::, all w,consuliriated material eau be used.
<br />li incrda::ed soil hrc,,!ucCivity i:; n:yuin•d for a 1,osL-mining use, the
<br />ti horizon or {,art oL the C horizon or other undcrlyiny'laycrs suitable for
<br />ror,t'~ylcvc]opmenC shaJ'1 be removed and sugragatcd for use as ::uhsoil. The ~~-~
<br />minimum depth of the soil and the soil material to be reconstructed shall. .. .. 'r"~
<br />'Le 4R inches or be c%{ual to the depth of the ::ubsurfacc hori•r.on in the natural
<br />• - •:ni1, wliiclirvc•i''i^. lys:::;. -
<br />__ -` Removal of"overburden material for use as tojisoil. Selected ovcrtiurden: -.
<br />~- material can be substituted for or tie added~•to ttte material in ttye A aitd
<br />_ !t lu~rizuirs if it is demonstrated Ly field observations and chemical and '
<br />- _ _ physical laboratory analyses that the overburden material or the ovcrburdeni~;`
<br />;.. and-topsoil mixture is better suited to use in restoring the calrability :.;:`.=~•'~'
<br />- ;:and praiirctivity.bf the land than the material originally in the A and It ''i?`---`~`
<br />ltorizc,ns:". Ar,nlyses r:an include determination of pll value; sulfide content;
<br />•' lhu'ccntayc of organic material, nitryayen, phosphorus and potassium; ter.ture;
<br />and :yvailable wafer capacity. field-site trials or yreenhouse tests may
<br />bu needed to ascertain the feasi6iLity of using overburden material.
<br />!f it i~ determined that tltc r,varl,urden matcri:rl is suitable, it must
<br />r,c rr~nov~y?, segrey:,ted and replaced according to the raguirpments specified
<br />in Lhis st~udard. ~'
<br />:a:ora~tu of top::oil material. if iC is im{.ractical Lu :spread the topsoil
<br />inuay:di:ytely after Lhu land is re-graded, it must be ncuci:piled. Stockpiles
<br />ct:all he selectively located and Lrotected from wind and water erosion,
<br />a nyr •cesu.,ey compaction and cunt amin:ytion by undys iraLlr materials. An effec-
<br />tivc v~~:aCntivt• cover or other ::uit,,bLc praetir.cs c.ut In~ovide adey{uate protection.
<br />l.ur i 1 1979
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