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.. ~ • <br />54=1-2 land Recons truution <br />Spa~tiCi.cat.ions' yuide <br />Site prepiaration. Areas shall be cleared of trees, logs, brush, rubbish <br />and other undesirable materials. Areas to be preserved, including those <br />rnnt,.,ining vegetation, stream corridors, natural springs or other important <br />tr aCUrm, shall be proper ly irlcntificd. <br />Itemcva.l of soil material for use a:; topsoil. All upper soil horizons to <br />F,o us~~~i in xeconsCructing Lhe soil shall Lc removed Crom Utc immediate area <br />Lcfo:c drilling for hlastiny, mining or any surface disturbance other than <br />romoval o;' •..oody plants. <br />.•.11 ti+~• ?, horizon ahall hr i c::noved for usr. as snrfare soil on disturbed <br />,:revs. IL Che .4 horicoi. is less chin ti inches Urick., enouyh material, other <br />U~i.in tc~:: uc.;, irtun~d i.a lely Lclow t!ic A horizon can be remove! airl used ~o <br />~~'~tain tlii>; th ickr~ess. l.f the to[al thickness of the available material <br />is 1~_:•s tbnn G incfic:, all wicoi~soiidated material can be used. <br />a <br />lC ii~cxdased soil producCiv it•/ is reyuirud for a post-mining use, the <br />f horizon or {,art oC the C horizon or other. underlying layers suiCablc for <br />root dev~.•lo{~ment shall be removed and scgregatod for use as subsoil. The <br />minimum depth of the soil and the soil maCCrial to be reconstructed shall <br />be 44 inch~-~s or 6c ayu.,l to the ri~y,th nC the ::uh:;urface horizon in the naWral <br />:,nil, whichrvcr i l,un. <br />R.cmov„1 of overburden material fur use as topsoil. Selected ovcrhurc3en <br />material can be subst.i.tuted for or be added to the material in the A and <br />B horizons if it is demonstrated by field observations and chemical and <br />physical laboratory analyses that the overburden material or the overburden <br />and to{~~soil mixture is better suited Lo use in xestorinrl the capabil.i.t•/ <br />and prcxiuctivity of Ih%• land than the maCcrial ori.yinally in the A and d <br />itori::ons. T+oalyses can include determination of plt value; sulfide cont~~nr; <br />perr_c:ntayc of ~ryanxc material, lutrogen, phosphorus and potassium; tcr.ture; <br />and :rvailaLlc water canar_it;. I'icld-site trials or greenhouse tesCS may <br />be necced to ascertain the fcasibtlity of using overburden material. <br />if IL _.; determined Lhat the overburden mo tex i,+l is: suit.ablc, it must <br />be r•:mov•ni, segregated and mp.locod according l~~ thr: xeyuicements specified <br />in Chi:; standard. <br />Storage of topsoil material. if it i.s impractical to spread the topsoil <br />immediately after the land is re-graded, .it must be st:ucl:piled. Stockpiles <br />shall he selectively located and protected from wind and water erosion, <br />unnecessary rnmpaction and contamination by undesirable materials. An effec- <br />tive v~_getat.ivr_ cover or oth~•r suitable practices can provide adequate protection. <br />Anr it 15i~ <br /> <br /> <br />