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TABLE 11 <br />CYPRUS YAMPA VALLEY COAL CORPORATION <br />1994 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />SITE: 304 <br />DATUM 6664.23 <br /> <br />Feld.~~:.~~'~~~ ~~~ OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br />Perometers~~~~~ ~ ~~~ ~ .~ <br />~ <br />~ ~ 10/20/93 11/11/93 72/20/93 1118/94 2/17/94 3/78/94 4/22/94 5/12/94 6/75/94 7/29/94 8/77/94 9/26/94 <br />Elevation lit above <br />msll 6666.75 6666.52 NF NF NF 6667.1 1 6666.57 6666.49 6666.14 6665.91 6665.75 6665.68 <br />Water Level -2.52 -2.29 Frozen Frozen Frozen -2.88 -2.34 -2.26 -1.91 -1.68 1.52 -1.45 <br />Temperature IC°1 <br />16 <br />Conductivity lumhos/cml 2980 <br />pH 8.0 <br />Lab ~ :.::::.::::.:.: : .: ~:: ~~'.::....:: ~::.. ~.: '~:::~~ ~: <br /> <br />,..::.. . <br />arameters :.: ~:~; ::: ~~~: <br />Alkalinity as CaC03 Img/II 305 <br />Bicarbonate as CaC03 Img/II 372 <br />Carbonate as CaC03 Img/II O <br />Calcuim, dissolved Img/11 316 <br />Conductivity @ 25 C° lumhos/cm) 2860 <br />Hardness as CaC03 Img/II 1684 <br />Magnesium, dissolved Img/II 218 <br />Sodium, dissolved Img/II 705 <br />Sulfate Img/II 1670 <br />Solids, total dissolved Img/Il 2690 <br />Solids, total suspended Img/II -2 <br />SAR in Water 1.13 <br />Nitrogen, ammonia Img/I) -0.05 <br />Ammonia as N lunionizedl Img/II 0.05 <br />Nitrate as N, dissolved Img/II -0.02 <br />Nitrite as N, dissolved Img/II -0.01 <br />Ni[ra[e/Nitrite as N Img/II -0.02 <br />Phosphorus, ortho diss (mg/II 0.018 <br />Cadmium. total recoverable lug/II -0.1 <br />Iron, total recoverable lug/II 330 <br />Manganese, total recoverable (ug/II 740 <br />Lead, total recoverable lug/II <br />Molybdenum, total recoverable luglll -10 <br />Mercury, total recoverahle lug/II ~0.2 <br />Selenium, total recoverable lug/11 -1 <br />Silver, total recoverable lug/II -0.5 <br />Zinc, total recoverahle lug/II -10 <br />• Included with Twentymile Coal Company's hydrologic monitoring program. If site is removed Irom TCC's program and continued <br />monitoring is regmred, CYCC will monitor the site. <br />• Water level measurements collected from late March/early April through September. Used to correlate with water level measurements of <br />adjacent alluvial wells. <br />NF= No gaw <br />M3AHR94.XLS <br />