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<br />TABLE 12 <br />CYPRUS YAMPA VALLEY COAL CORPORATION <br />1994 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />SITE: 700 <br />Field ..:.....:::. ::.. <br />..: :'~:~~ :~~ ~~ ~~~ <br />MAR <br />APR <br />APR <br />MAY <br />JUN <br />JUL <br />AUG <br />AUG <br />AUG <br />AUG <br />SEP <br />SEP <br />Parameters: ~~~~~. ~~~::~~~~~~~:~~~~~~~~~~~ ----~- 4/13194 4/24/94 5/27/94 6/16/94 7/29/94 B!5/94 B/9/94 8/17/94 B/25/94 9/8/94 9129/94 <br />Flow pate Icfsl - - - - - 3.327 4.693 1 .740 0.101 0.146 0.1 76 0.520 0.648 0.070 0.060 NF <br />Water Level ----- -1.66 -1.74 -1.54 -1 28 -1.31 -1.32 -1.4 -1.42 -1,25 -1.24 NF <br />Temperature (C°I - - - - - 12 11 16 19 19 19 18 20 20 18 NF <br />Conductvity lumhos/cml - - - - - 640 530 630 620 540 570 600 500 690 760 NF <br />pH ----- 8.2 85 8.6 8.6 7.4 7.2 7.7 6.8 7.0 7.3 NF <br />lab.::.;.':: :::.::;:~:.:.: ~... ~. ~ : ...: .... .. .:. <br /> <br />............ . <br />Paremeters.~: ~: ~~: ~~:~~~~~~~: ~: ~~:. ~.. <br />Alkalinity as CaC03 (mg/II 21 5 242 188 NF <br />Bicarbonate as CaCO3 Img/ll 262 285 229 NF <br />Carbonate as CaCO3 Img/II 0 5 0 NF <br />Calcuim, dissolved (mglll 75 71 49 NF <br />Conductivity @ 25 C° lumhos/cm) 731 724 425 NF <br />Hardness as CaC03 (mg/II 323 31 3 209 NF <br />Magnesium, dissolved Img/II 33 33 21 NF <br />Sodium, dissolved Img/p 33 31 15 NF <br />Sulfate Img/II 165 150 39 NF <br />Solids, total dissolved Img/II 472 458 244 NF <br />Solids, total suspended Img/q 138 20 4 NF <br />SAR in Water 0.79 0.75 0.46 NF <br />Nitrogen, ammonia (mg/II 0.05 0.06 0.07 NF <br />Ammonia as N lunionizedl Img/II 0.05 -0.05 0.05 NF <br />Nitrate as N, dissolved Img/II -0.02 -0.02 0.44 NF <br />Nitrite as N, dissolved (mg/II -0.01 -0.01 -0.01 NF <br />Nitrate/Nitrite as N (mg/II -0.02 -0.02 0.44 NF <br />Phosphorus, ortho diss Img/II 0.015 0.005 0.020 NF <br />Cadmium, Total recoverable lug/II 0.2 -1 ~0.1 NF <br />Iron, total recoverable lug/II 3650 530 310 NF <br />Manganese, total recoverable (ug/II 350 80 50 NF <br />Lead, total recoverable (ug/II NF <br />Molybdenum, Total recoverable lug/II -10 -10 -10 NF <br />Mercury, total recoverable (ugll) -0.2 -0.2 -0.2 NF <br />Selenium, total recoverable luglll -1 -1 -1 NF <br />Silver, total recoverable lug/II -0.5 -0.5 ~0.5 NF <br />Zinc, total recoverable lug/II 10 ~10 ~10 NF <br />'Sampling is performed on a flexible schedule Throughout the normal flow period, March through September Within this time frame, <br />flow antl field parameters are measured twelve (12) times and four (4) full suite analyses are conducted <br />---- = No data <br />NF = NO flow <br />M3AHR94.XLS <br />