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<br />TABLE 4 <br />CYPRUS YAMPA VALLEY COAL CORPORATION; FOIDEL CREEK MINE <br />1995 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONITORING DATA <br />SITE: WELL 91M006 DATUM 7306.9 <br />Field:::;:~::~::':~~:~::~~~~~~~'~~'~'^~~:~~:~.~:::~:~i:~'~'~.;.:~~:~:~~ OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br />P.srameteri: ~:::: ~.:: ~: ~::~:::~:::.~.~:;~;~~:; ~:~:;:;::RATE:~.::: 10/27/94 05/1 1 /95 09/06/95 <br />Water Depth Iftl 577.2 586.7 583.0 <br />Elevation Ift above msll 6729.70 6720.2 6723.9 <br />Temperature IC°) 14 12.9 15 <br />Conductivity lumhosicm) 1670 1550 1680 <br />pH 7.9 9.8 9.7 <br />Lab:::::::- ::...::::.::::::: ':' :.'::'::::'..;'::':'::::.:.::: <br />....:....:...:.:...:....: . <br />Conductivity @ 25 C° (umhos/cml 1590 1580 1570 <br />Total Alkalinity Img/II 640 655 665 <br />Hardness as CaCO3 Img/II 20 17 14 <br />Solids, total dissolved Img/II 944 900 890 <br />Bicarbonate as HC03 Img/II 527 334.8 410.4 <br />Carbonate as CO3 (mgl11 125 225.6 194.4 <br />Sulfate Img/II 10 140 160 <br />Calcium, dissolved Img/II 3 1.8 2.8 <br />Magnesium, dissolved Img/II 3 7.5 1.7 <br />Sodium, dissolved Img/II 369 360 325 <br />SAR in Water 35.5 48.5 36.3 <br />Cadmium, dissolved lug/II 0.2 -0.5 -0.5 <br />Lead, dissolved lug/II 110 160 80 <br />Mercury, dissolved lug/II -0.2 -0.2 -0.2 <br />Selenium, dissolved lug/II -1 -1 -1 <br />Iron, dissolved lug/II 760 7000 720 <br />Manganese, dissolved lug/1) -10 6 -10 <br />Molybdenum, dissolved lug/II 10 10 -20 <br />Nitrate as N, dissolved Img/II -0.02 -0.02 0.06 <br />Nitrate/Nitrite as N Img/II -0.02 -0.02 0.06 <br />Phosphorus, ortho diss Img/p 0.089 0.125 0.009 <br />