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kc~•isc'd; Au;}ust 27, 1087 <br /> <br />G.~5.8 acid f'ormih~ tiLuil <br />La Plata ',~I has uhscr\c(1 Weill drnin;l~c LhaL nppn;lrs Lo he caused <br />by surface water luovi.n~; over recently turned nloLerial LhaL probably <br />contains acid forming mnt(~rinl. <br />'I'u Lreal ibis con(lilion, I.:I I'I;rL;I ~I has cunsLrucLnrl :I series <br />oL Uvo ponds where manual Lrcalnlenl of Lhe acidic waters wi1L take <br />place. See d.o5"%(.~for location anti extant of the ponds. <br />I'rrallnenl flan <br />1.)Iinely ground limestone will he Lhe buflcr used. 'I'bis limestone <br />will act slower but longer than normal lime. The ground limestone's <br />• sln(rrr - Innp,rr :ICI inn wi f I 1,1~ nulrl' h1 n(•(iri:ll ~in~r [he ncirf <br />I nI-III I III tI 1';I I IIatiC I ti UII I \' :~1':ITU11:1 I :Illd nt_C'.II I-~ ull I )' flll l' I I1.~ Lhe WC'L <br />tiV^5UI1. <br />).) I'i l-sL i+un1 Lrl :llr l \.i 111 lien( ,Inn1 N:111rr I~rr1 ilri l:ll inn <br />uccur~. Idhcn I i I I 11'\(1 is rc';IChrrl, wate'r' I Inw~ inLn Lhr.• <br />S l•c 1)nil pUlld 1111' ~1~~nl11;1 r\' pl'/'C I Irl LaL 11)11. I'nti~l)1' :1(111 I L I(In:l <br />tre:l[nlen[ mnv I:II:r' pl:lrl h1•rn :w rrrlllirrrl. <br />_'.) UuLI aL1. I'hc r~• i~ rn rl'I) :Iln (,ull;lll Ircnn lh1 s,~un11 pond :I~ <br />it contains only sonson:ll Ilow. Plnsl of Lhe water rvalulrates <br />tai thin Lhe slruCturn. Iluwr\er, it rlisch:lr;~,1 rc1•r nccurs, it is <br />rnutl'J inln U11' In.lin ..~ rlimr nl Ir~ln~l 11rr :111111 I ilrn:ll '.. I I I ill;,. <br />'I.c15.71 \1 <br />