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t <br />.- L7Hl Xcrr ;ly,l ni luy; i.~ 'I~~n i.i.u-in;~, i;ri,n :-:. <br />Operational Conditions <br />Mining operations in ['it h+o, t ~acrc [cmporrrily suspended in April, 1981. <br />Mining had progressed in Pi[ .Io. t as Car n:; [op:;niL n..noaal. and pnr[iaL scrip- <br />ping of the overhurdun nhave chc Sudduth Cn:rl :;coin, ".o saturat~.•d Layers harl <br />been penetrated in the nverbunlen. ILnro~f lr~,m ~listunc~~l :rrcas ~~as diverted <br />into newly constructed SP.dLIn(tnt:ILiJn pond>; ~;, !t, ~:, U and I:. Co date, Ponrl P is <br />still under cons[rur_[ion. The tipple in l;.al~lcn r;untin~•ed limited operations <br />during this [fine. <br />Kerr Mine Area -Confined Ground 'eater <br />Water Levels •.~ere measured Ln twenty-oi,;ht confin~~~l rnnnitor wo11s and <br />samples were collected at eleven of ~.,,~,;~ ~.:clLs once per ~,nuncP. in 1981. in <br />addition, injection-type .vluif.cr [uses ('~sluy; test;") were pecfoemed on two <br />drill holes near tiv. Eau Lc:; in ':!illi...u n:; and lin;;'n Dr:r•.: s. <br />Data on water Levels, tenq~crature, pli nn,l rlc~ctricnl. conductivity of the <br />confined coal aquifer are li:;te~l in attached 'I'ahle L, L:Cfr 'line Confined Ground <br />[Dater Field Data. The lour cuLLrected to L'J8L ext.:nds the base: Line record, <br />because there was no additional impact of inini.n~ un ground water during this <br />time. <br />Samples collected From the confined coal arluiEer ~.ure analyzed Eor a full <br />suite of elements. The results of these nnaLyscs are LLstc~l in attached Tab Le 2, <br />Kerr Pline Confined Ground lJatcr Quality Da [a. Onu nE [hc wells, 028-79-3, <br />contains anomalously high Levels uE ti,rd~ium, potassium, chloride, barium and <br />ammonia-nitrogen. inturestin};ly, the concentrations of thu;e elements, as well <br />as elec[rLca1 conductivity, tueal di:;>:ulveJ :;nlid~, har~lne:;:; :rn,1 S.1!: hove de- <br />clined consistently through tune, :u; shown in a[tnchud I'i};nre 1, !:ell 023-79-3 <br />Water Quality Ilydro;raph. Well 0'_8-77-7 recoi.vcs water (rum sandstone Lenses <br />stra[igraphicly above [he overburden inincd at tlrc Marr Strip `tine. One of <br />these lenses apparently cunL~inrd highly tiaLine ~,ruunrlwnter, which is becoming <br />diluted 6y mixing with water Scam ocher n.lui[urs in [hc CuaL;non[ Formation. <br />