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• TABLE: 36 CYPRUS YAMPA VALLEY COAL CORPORATION: MINE NO. 1, 2 AND ECKMAN PARK 1998 ANNUAL HYDROLOGY REPORT WATER QUALITY MONITORING DATA SITE: Spring 1860500 (Spriog E) DATUM = tSe[ds-<:".:<~;;:~%%3;:;:''~i:<: :~:' '.'i~:~:~~:.. ~~:)~~;,;: :.~::`:;:)': ~: OCf NOV DEC JAN FEB MAR APR MAV JUN JUL AUG SEP . : . : ~!ittiii~a'ftti'1Y~:"~:~~."::.::.:`:';'.:'::~:::~^~~~~:;;.::~:":?::::~;.:;:~`:~:.:~.:".~:~. 03-Nov-97 02-Maz-98 13-A r-98 29-Ma -98 29-Jun-98 10-Se 96 Water Lcvel -0.14 •013 -0.3 -0.34 -0.19 -O.IB Flow cfs) 0.0827 0.0713 0.331 0.468 0.152 0.137 TEMPERATURE FIELD DEGREESC 10.3 9 9.7 13 IS 12 COMJUCTIVITY FIELD UMHOS/CM 3440 3330 3350 3500 3400 3200 PH FIELD PH 6.75 6.56 6.7 6.7 6.5 66 CONDUCTIVITY LAB UMHOS/CM 3530 3480 3550 PH LAB PH 7.2 6.9 6.9 SOLIDS DISSOLVED MG/L 3390 3410 3490 SOLIDS SUSPENDED MGh -5 12 -6 ALKALR4ITY TOTAL MGh 666 637 673 HARDNESS TOTAL MG/L 2690 2390 2510 CALCIUM DISSOLVED MGh 581 533 529 MAGNESIUM DISSOLVED MGh 302 258 290 SODIUM DISSOLVED MG/L 53.9 45.7 46.4 SAR NOT APPLICABLE UNDEFINED 0.45 SULFATE NOT APPLICABLE MG/L 2030 1940 1950 BICARBONATE AS HCO3 MG/L 812 777 821 CARBONATE AS CO3 MGh -2 -2 -2 HYDROXIDE AS OH MGh -2 -2 -2 CADMIUM TOTAL RECOV UGh -O.S -6 -6 MERCURY TOTAL RECOV UGh -0.2 -0.2 -0.2 SELENIUM TOTAL RECOV UG/L -1 -I -I SILVER TOTAL RECOV UGh -OS -10 -10 ZINC TOTAL RECOV UG/L 20 30 20 IRON TOTAL RECOV UGh 50 -20 .20 MANGANESE TO7AL RECOV UG/L 1650 1510 1590 MOLYBDENUM TOTAL RECOV UGh -20 -20 -20 MTROGEN AMhBIJM-TOTAL MGh 1.14 0.93 088 MTROGEN AMMIA•FREE MGh -0.01 -0.01 -0.01 MTROGEN MTRATE MG/L 0.06 0.79 0.03 MTROGEN MTRITE MGh -0.01 -0.01 -0.01 MTROGEN NO3+NO2 MG/L 0.06 0.79 0.03 PHOSPHATE ORTHO•DISS MGh -0.005 •0.005 •0.005 cuT+nuvmoN n~mm,~.wm: i vaa ~rncaas