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<br />-,73-
<br />which may be necessary to '.•r r:+n~~~ n:;. ~.•,rr t.rr i~nr I; n~r~i •.
<br />West Ridge areas.
<br />
<br />in !~~~tli rhr• tin ~-r ,rL and
<br />The Division grants a limit to the topsoil removed in one area of appro>:irrutcly
<br />8 acres along the west side of West Ridge because of the steepness of the slope .l/
<br />These areas will be topsoiled after mining (page4.3-5 volume 10, and exhibit
<br />4.3-2). Justification for this finding can be found on page a.3-S volume 10,
<br />and exhibit 9.3-I.
<br />VEGETATION FINDIPIGS (2.Od.10, 2.OS.~J(2)(e), 4.1
<br />The Pittsburg and Fiidway Edna mine has eight major vcactative mapping units within
<br />the permit boundary: sagebrush/snowberry, mountain shnzb, aspen woodland, willow/
<br />redtop, disturbed land, subirriyated shnrbiand, surfncc m.incd land, and degenerate
<br />smooth brome. Of these units, several r,•cre of minor extent or not to be affncted by
<br />mining operation, conse9uently Cher, were not ;amplc~l or partially sampled. There
<br />were aspen woodland (small extent), subirriyatec] shrubland (small extent), willow/
<br />redtop (not to be affected), degenerate snpoth brume (not be to affected), and
<br />surface mined Land (previously reclaimed, or with no distinguishable vegetation
<br />community type). Disturbed land consisting of roads, equipment pads, shop facilities
<br />and associated like areas were not s<rmpled. The tcdo remaining corrvnunities, s,zyebrush/
<br />snowberry and mountain shrub were saml>led ndequ•.~tr_•1r1, describing cover, productivity,
<br />woody plant density, and species cornpositie.n. Reference areas r;ere established For
<br />these community types and they were adequately sa.npled fee fire same parameters.
<br />P.e ference areas were found to hr, sta tisti Gaily r. r]ui ~,,a lent to the areas to be -affected
<br />in terms of cover and production. The ope ra ter wishes to l,ro pose a variance in
<br />regard to reestablishment of woody plants af: the site. '1'hcrefore, this stipulation
<br />is proposed:
<br />6. PITTSBURG AND FII D:'Jrl }', I:V CONJUNCTION hll TJr TIIIS DI PZS ION, WILL ESTABLISff it
<br />REVEGETATION STAPI D.4 P.D FOR TILE REESTABLISIIhJENT Of fJOODY PL.LVTS ([WOODY PLANT
<br />DENSITY) PJO LATER TIlAM1' ill r?C]? 31, 1'J 82.
<br />Since the Division has not currently proposed any methods for the eva_'uation of
<br />species diversity revegeta tton success, the fo11o;~+iny stzpulation is proposed:
<br />PITTSBURG AiJD :NIlAdii ;-, Irv ~r)iJJ (IiJCTi0 `J ::i fli 7?i LS l1; L'1S lr~:', !r1LL ES i'ri BLi S!! i.
<br />REVEGETATION STA."J D;1 i2D I'OR Sr'EC iL'.S DC V~Ii.S'7 Tl' .T 1'!lE ED`:. ,~i Z,VE NO L.iTER TIIAPI
<br />M.ARCJf 31, 198?.
<br />Pittsburg and Plidway has ayreerl to submit send rni:;~a on .rn •rnrrual basis for Division
<br />review and acceptance. Tire 19R1 seed mix has been approved Ly the Division.
<br />Pittsburg and Midway has in cl udrv] sc. ve ra] introducer] species in their re ve ye to ti on
<br />seed mix. In order to minim: a the pnssri,ility of rcvey~•tntinn failure or introduced
<br />species dominance, Pittsburry anr];4id~.,my hn~ submitr.cA to thn Division a plan to
<br />monitor the revegetation efforts at the Erna rrunc• i.n letter form. The monitoring
<br />program will be annual in nature and provide sufficient data to determine effects of
<br />introduced species and revegetation success. Information will be submitted to the
<br />Division on an annual basis.
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