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• <br />TABLE 5 <br />CYPRUS YAMPA VALLEY COAL CORPORATION <br />1994 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />SITE: 08AV2 DATUM 6677.1 <br />Field:~~~~~~~~.'~~~~ OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br />Parameters <br />~ 10/20/93 11/12/93 12/20/93 1/18/94 2/17/94 3/18/94 4/15/94 5/12/94 6/15/94 7/29/94 8/17/94 9/21/94 <br />Elevation Itt above msll 6667.2 6667.1 6666.9 6667.1 6667.1 6668.3 6668.2 6667.6 6667.1 6666.5 6666.4 6666.7 <br />Water Level 9.9 10.0 10.2 10.0 10.0 8.8 8.9 9.5 10.0 10.6 10.7 10.4 <br />Temperature IC°1 17 12 9 7 5 10 11 10 13 18 19 19 <br />Conductivity lumhos/cml 1460 1520 1560 1370 1052 1460 1190 2020 1300 1520 1780 1590 <br />pH 7.6 7.6 7.5 7.3 6.1 7.7 7.5 7.6 7.5 7.2 6.7 7.3 <br />Lab :::..:.:.::::::~~.:~:..~::;,...:;.:~:~~~~ <br />Parameters :::: ~: ~ ~ ..:.::::1: ~ .:: : ::...::.::...... .::..: <br />Alkalinity as CaC03 (mg/I) 326 320 322 320 <br />Bicarbonate as CaC03 Img/II 398 390 393 390 <br />Carbonate as CaC03 Img/II 0 0 0 0 <br />Calcuim, dissolved Img/II 198 170 198 214 <br />Conductivity @ 25 C° lumhos/cml 1702 1710 1703 1720 <br />Hardness as CaCO3 (mg/II 835 720 835 904 <br />Magnesium, dissolved (mg/II 63 72 83 90 <br />Sodium, dissolved Img/II 88 73 82 97 <br />Sulfate Img/II 702 704 741 714 <br />Solids, total dissolved Img/II 1336 1298 1258 1320 <br />SAR in Water 1 .31 1 .17 1 .22 1 .42 <br />Nitrogen, ammonia Imglll 0.46 0.26 0.3 0.37 <br />Ammonia as N /unionized/ Img/II -0.05 -0.05 -0.05 -0.05 <br />Nitrate as N, dissolved Img/II 0.11 0.08 0.06 0.12 <br />Nitrite as N, dissolved Img/II -0.01 -0.01 -0.01 0.01 <br />Nitrate/Nitrite as N Img/II 0.11 0.08 0.06 0.13 <br />Phosphorus, ortho diss Img/II 0.008 -0.005 -0.005 -0.005 <br />Cadmium, dissolved lug/II -0.1 -0.1 -0.1 0.2 <br />Iron, dissolved luglll 200 140 40 510 <br />Manganese, dissolved lug/II 2900 110 2500 2710 <br />Lead, dissolved lug/II -20 -20 -20 -20 <br />Molybdenum, dissolved lug/II -10 -10 -10 -10 <br />Mercury, dissolved lug/I) -0.2 -0.2 -0.2 -0.2 <br />Selenium, dissolved lug/II -1 -1 -1 -1 <br />• Included with Twentymile Coal Company's hydrologic monitoring program. If site is removed from TCC's program and continued <br />monitoring is required, CYCC will monitor the site. <br />M3AHR94.XLS <br />