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-s • • <br />TABLE 10 <br />CYPRUS YAMPA VALLEY COAL CORPORATION <br />1994 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />SITE: 900 <br />Field :::..... <br />~~~~ ~.:::. <br />MAR <br />APR <br />APR <br />MAV <br />JUN <br />JUL <br />AUG <br />AUG <br />AUG <br />AUG <br />SEP <br />SEP <br />Parame4ers~~.~~~~~~ ~~:~ ~~~~.~::.~~~~~ ~~~~~~ ..~.~~ ----- 4113/94 4/27/94 5/27194 6116/94 7!29/94 8/5!94 8/9/94 8/16/94 8/25/94 9/8/94 9/29/94 <br />Flow Rate Icfsl - - - - - 1.901 1 .448 0.700 0,240 0.096 0.024 0.00 0.00 0.00 0.00 0.00 <br />Water Level - - - - -3.94 -3.88 -3.74 -3 60 -3.54 -3.51 -3.45 -3.42 -3.40 -3.35 -3.42 <br />Temperature IC°) - - - - - 1 1 10 16 1 7 18 19 19 18 19 19 9 <br />Conductivity lumhos/cml - - - - - 1940 2050 2600 2430 2810 2920 2480 3670 3000 2920 3520 <br />PH ----- 8.2 B.Z 8.2 8.2 7.7 7.6 7.4 6.9 7.4 7.6 7.9 <br />Lab ~ ~: ~:::. ~:: ~ :.:.:.::.::..:: ~ ::.:...:..:.::. <br />Pararnetera::::..".::.' :: <br />~ <br />Alkalinity as CaC03 (mg/II 315 194 310 320 <br />Bicarbonate as CaCO3 Img/II 384 237 378 390 <br />Carbonate as CaC03 Img/II 0 0 0 0 <br />Calcuim, dissolved Imgll) 244 314 383 364 <br />Conductivity @ 25 C° (umhos/cml 2330 2960 3230 3140 <br />Hardness as CaC03 Img/II 1262 1810 1963 1890 <br />Magnesium, dissolved (mgll) 159 250 250 239 <br />Sodium, drssolved (mglll 91 71 155 118 <br />Sulfate Imgll) 1132 1875 1943 1770 <br />Solids, total dissolved Img/II 1960 281 B 3042 2920 <br />Solids, total suspended Img/II 28 12 16 2 <br />SAR in Water 1.1 0.71 7.53 1.19 <br />Nitrogen, ammonia Img/II 0.07 0.07 -0.05 0.08 <br />Ammonia as N !unionized! Img/II -0.05 -0.05 -0.05 -0.05 <br />Nitrate as N, dissolved (mg/II 0.30 -0.02 -0.02 -0.02 <br />Nitrite as N, dissolved (mg/II -0.01 -0.01 -0.01 -0.01 <br />Nitrate/Nitrite as N Img/II 0.30 -0.02 -0.02 -0.02 <br />Phosphorus, ortho diss Img/II -0.005 0.020 -0.005 -0.005 <br />Cadmium, total recoverable luglll 0.1 -1 -0.1 -0.1 <br />Iron, total recoverable lug/II 550 910 980 440 <br />Manganese, total recoverable lug/U 530 500 1410 1540 <br />Lead, total recoverable (ug/II <br />Molybdenum, total recoverable lug/I) -10 -10 -10 -10 <br />Mercury, total recoverable (ug/II •0.2 •0.2 •0.2 -0.2 <br />Selenium, total recoverable lug/II -5 -1 -1 -1 <br />Silver, total recoverable lug/II •0.5 -0.5 -0.5 •0.5 <br />Zinc, total recoverable fug/I) -10 -10 -10 -10 <br />Sampling will be performed on a flexible schedule throughout the normal Flow period, March through September. Within this time frame, <br />Flow and field parameters will be measured twelve (12) times and (our (4) full suite analyses will be conducted <br />---- = No data M3AHR94.XLS <br />