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<br />TABLE: 15 <br />CYPRUS YAMPA YALLEY COAL CORPORATION: MINE NO. 1, 2 AND ECKIIIAN PARK <br />1998 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />SI'fE:365P3 <br />DATUM- 6673.18 <br />.Is113.:~~~<:;;.:'~~::~:::~~:~;:~.::::~::~~~:::~:~.:::::;:..::~:::~.::::;.:::~:~:::::~::~:::~:~.•:;. ~ ::::....::::::~::::.:~~~ <br />~ OCT NOV DEC JAN FEB D1AR APR MAY JUN JUL AUG SEP <br />rnim~~~..;. 0 Nov-97 02-Mar-98 01-Ma - 06-Au -98 <br />Elevation (ft above m~I) 6626.37 6625.75 6631.95 6627.12 <br />Weser Level 45.81 46.43 40.23 45.06 <br />TEMPERATURE FIELD DEGREESC 12 10.5 12.9 13.9 <br />CONDUCTIVITY FIELD UMHOS/CM 3510 3130 3540 3730 <br />PH FIELD PH 6.64 6.52 6.29 6.SB <br /> <br />CONDUCTIVITY LAB UMHOS/CM 2160 3210 <br />PH LAB PH 6.7 6.6 <br />SOLIDS DISSOLVED MG/L 3670 4140 <br />ALKALINITY TOTAL MG/L 701 728 <br />HARDNESS TOTAL MG/L 2580 2680 <br />CALCIUM DISSOLVED MG/L 509 503 <br />MAGNESIUM DISSOLVED MG/L 317 345 <br />SODIUM DISSOLVED MG/L 39.9 39.4 <br />SAR NOT APPLICABLE UNDEFINED 0.34 0.33 <br />SULFATE NOT APPLICABLE MG/L 1980 2080 <br />BICARBONATE AS HCO3 MG/L 855 868 <br />CARBONATE AS CO3 MG/L -2 -2 <br />HYDROXIDE AS OH MG/L -2 -2 <br />CADMIUM DISSOLVED UG/L -0.5 -0.5 <br />LEAD DISSOLVED UG/L ~0 -40 <br />MERCURY DISSOLVED UG/L 0.7 -0.2 <br />SELENIUM DISSOLVED UG/L 1 -1 <br />IRON DISSOLVED UG/L -10 30 <br />MANGANESE DISSOLVED UG/L 2.27 1870 <br />MOLYBDENUM DISSOLVED UG/L -10 -10 <br />NTROGEN AMMIUM-TOTAL MG/L 0.58 0.16 <br />NITROGEN AMMIA-FREE MG/L 0.01 -0.01 <br />NITROGEN NITRATE MG/L 0.47 0.03 <br />NITROGEN NITRITE MG/L 0.02 -0.01 <br />NITROGEN NO3•N02 MG/L 0.49 0.03 <br />PHOSPHATE ORTHO-DISS MG/L 0.01 -0.005 <br />I;\EN\ENVIRONM E NTAL W HR\1997~CVVCC.XLS <br />