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III IIIIIIIIIIIII III <br />999 <br />5\~ Doc Date:1 211 1 /2 0 01 <br />~,pq,7 Hydrology Description ' <br /> <br />The IIlue Flame Coal Mine operation teas never impacted the groundwater <br />systems and its impact on the surface hydrology is moderate, euture operations <br />in the upper Menef ec coal scam arc not expected to disrupt aquifers, screams, <br />watersystems, or the small watershed (upsloC~c areas cf. the mine site). Hydro- <br />logic data obtained =ram the esistinq mine •dnri:inys and o[her research stcdi~~s <br />show ti~at the mini~,y ~~~~~~r,,tiun:- has itn~l ~.nl; ., mtld impact on water' sources of <br />fay Gulch. <br />'fhe mining bench or ncrnit area is locnied in the upper reaches of the <br />11a.: Gulch rlra.in,iye system. ~~.11 direr~iun i!i:.~:iu~s, sedimentatiun ponds, water <br />cony!:,antes nnJ. storay,:, and the surfaco i,u:iliCies aee shown on the mine <br />suTfucc dnunagc m: p. <br /> Surf ace 11';droluq~; <br /> t•lap ] slwws tits _unr,if flows in the mine plan area above the affected <br /> or disturbed area. ~'.~:,t of Ute ~nir.[ncc ninuCC from the upslope areas finds its <br />11 <br />•J ~.aay into rite drainage area South of the middle of the upper bench. From this <br /> area, it runs into the Ilav Gulch meadow North h~ the mi ne site. <br />Surface runoff on the permit area (disturbed mine bench) is collected <br />•na t`.e drainage channels into a future sediment pond. <br />'Ph.: sediment pond and s},iliways will. Lc cunstruct.ed in accordance with <br />the criteria uroposed by Anne 13,~1~!rige (M.irch 3, 19F5 report attached). Blue <br />f7nmc ~:.ill monitor :surface water Loth up nn~.l down stra~am of the mine as to <br />~vanu:.;~ any'. quali:r usin:; criteria outlinal in Sec[ion 2.r:•1.?;'). <br />Suit-Suc_acu f!~.~dr~~lo~i, <br />01u,~ i'L.ii~^ ~u.il G~:npnny Has ^ut ui~:uuntcC.,cl yround::,itcr clurina t1:e <br />tours,-: cif nc~•~m,.~ .:,_~•_i~q ~~pw-ati >n:;. lt. is c:a i:n.urd i.!i: t. rL~~re will L.. v neod <br />for ~>: i,nty (:'.J) :l,:nc u~ .:aCrt I."r ~!, r/. <br /> <br />