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<br />TABLE 13 <br />CYPRUS YAMPA VALLEY COAL CORPORATION: FOIDEL CREEK MINE <br />1995 ANNUAL HYDROLOGY REPORT <br />HYDRLOGV MONITORING DATA <br />SITE: WELL 008-AV-2 <br />DATUM 6677.1 <br />Field::::~::~~~~:;::~::.~:~~~~~::::~~:~:~~.~::~'~:::::~:::; OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br />Perariteteis`::~::~~~::::::::~:~:.:~~:::::::~::::;:::.:::~.::~;~ 10/27/94 11/21/94 12/30/94 01/16/95 02/16/95 03/31/95 04/26/95 05/08!95 06/07/95 07/10!95 08/01!95 09!05/95 <br />Elevation Ift above msll 6666.5 6666.7 6666.7 6666.7 6667.7 6667.8 6668.1 6669.7 6670.1 6667.5 6667.4 6667.2 <br />Water Level 10.6 10.4 10.5 10.4 9.4 9.3 9.0 7.4 7.1 9.6 9.7 9.9 <br />Temperature IC°1 13.0 11.0 6.0 6.0 7.0 9.0 9.0 6.7 9.5 13.2 12.6 13.4 <br />Conductivity (umhos/cml 1640 1490 1610 1580 1200 1670 1620 1820 1780 1740 1770 1850 <br />PH 7.6 7.6 7.8 7.9 7.9 8.0 7.9 7.9 7.3 7.1 7.5 7.5 <br />ararrietera :::::::.:.::.::::' .::..:::: :.:. <br />Conductivity @ 25 C° Iumhoslcml 1700 2380 1750 1730 <br />Total Alkalinity Img/II 345 379 302 302 <br />Hardness as CaC03 (mg/II 1180 884 835 <br />Solids, total dissolved Img/II 1310 7970 1200 1430 <br />Bicarbonate as HC03 Img/II 414 454.6 362.4 362.4 <br />Carbonate as C03 (mgll) -2 -2 -2 -2 <br />Sulfate Img/II 720 1070 780 750 <br />Calcium, dissolved Img/II 200 277 209 195 <br />Magnesium, dissolved Img/II 84 118 88 84.6 <br />Sodium, dissolved (mg/II 87 141 91 88.3 <br />SAR In Water 1.82 1.35 1 .35 <br />Cadmium, dissolved lug/II -0.1 -0.5 -0.5 -0.5 <br />Lead, dissolved lug/II -20 -20 -20 ~20 <br />Mercury, dissolved lug/II -0.2 -0.2 -0.2 -0.2 <br />Selenium, dissolved lug/II -1 76 -1 1 <br />Iron, dissolved lug/II 460 60 170 420 <br />Manganese, dissolved (ug/II 3500 9 1680 1840 <br />Molybdenum, dissolved luglll -10 -10 -10 -10 <br />Nitrogen ammonia Img/II 0.62 0.08 0.31 0.58 <br />Nitrate as N, dissolved Img/II 3.09 0.06 0.11 <br />Nitrate/Nitrite as N Img/II 0.09 3.10 0.07 0.14 <br />Phosphorus, ortho diss Img/II -0.005 0.290 0.015 -0.005 <br />