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CYPRUS 1'AAIPA ~F,}' COAL CORPORATION: MINE NO. I, 2, AND ECKAIAN PARK • • 2000 ANNUAL HYDROLOGIC REPORT SUMMARI' OF N'ATF,R QUALITI' DATA summnry~ of wnler gnnlily data-Ill.brw CATEGOR}' PARAMETER ANALYSIS TYPE AVERAGE STD. DEV. MAYIMUM MINIMUM UNITS COUNT BEGIN END PH}'SICAL PROPERTIF,S TEMPERATURE FIELD 1134 2.31 1600 R.00 DEGREES C 28 OS/R7 09/00 CONDIICTIVITY FIELD 2,97311 679.00 3,940.00 947.00 UMHOS/CM 2R OS/g7 09/00 LAB 3,011.52 653.36 3,800.00 1,150.00 UMHOS/CM 27 05/R7 09/00 PH FIELD 7.90 0.70 933 690 PH 28 OS/R7 09/00 LAB 7.58 1.13 9 20 5 90 PH R 05/97 09/00 ALKALMITY TOTAL 15468 177.82 37000 6.00 MG/L 25 05/87 09/99 HARDNESS AS CAC03 1,446.90 729 52 2,371.00 6.60 MG/L 25 OS/R7 09/99 SOLIDS TOTAL-DISS 2,701.56 886.78 3,71000 618.00 MG/L 27 05/87 09/00 CATIONS CALCIUM DISSOLVED 266.54 151 J6 447.00 1 00 MG/L 27 05/87 09/00 MAGNESIUM DISSOLVED IR7.30 103.52 31800 1.00 MG/L 27 05187 09/00 SODIUM DISSOLVED 275.85 86.45 544 00 156.00 MG/L 27 05/R7 09/00 SAR NOT APPLICABLE 3.95 3.74 19.00 154 UNDEFINED 27 OS/87 09/99 ANIONS BICARBONATE AS HC03 182.71 154.78 451.00 7 00 61G/l. 26 05!87 04!0(1 CARBONATE AS C03 13.30 44 61 190 00 0.00 MG/L I R 05/R7 09/00 HYDROXIDE AS OH 000 0.00 000 000 MG/L 10 05/95 09/99 SULFATE NOT MPLICABLE L69737 713 IS 2,55200 43.00 MG/L 27 05/87 09/00 PRIMARY CADMIUM DISSOLVED 0.07 010 050 0.00 UG/L 26 OS/R7 04/0_0 LEAD DISSOLVED 7.78 21.18 100.00 0.00 UG/L Z7 05/87 09/00 MERCURY DISSOLVED 0.00 0.02 0.10 0.00 UG/L 27 OS/R7 09/00 SELENIUM DISSOLVED 9,888.R9 51,384.17 267,000.00 0.00 _UG/L 27 05/87 09/00 SECONDARI' IRON DISSOLVED 3.275.93 8,280.74 31.200.00 0.00 UG/L 27 OS/R7 09/00 TOTAL RECOV 2.94000 0.00 2,940,00 2,94000 UGA- 1 10/93 IN93 MANGANESE DISSOLVED 498.33 345 20 1,190 00 0.00 UGlL 27 OS(R7 04/00 TRACE METALS MOLYBDENUM DISSOLVED 0.74 3 85 20.00 0 00 UG/L 27 05/87 09/00 NUTRIENTS NITROGEN AMMIUM-TOTAL 219 0.00 219 219 MG/L I 12/R7 12/87 AMMIA-FREE 0.01 0.00 001 0.01 MG/L I 12/87 12/87 NITRATE 0.01 0.03 0.13 0.00 MG/L 27 05/87 09/00 NITRITE 000 0.01 0.02 0.00 MG/L 12 05/95 09/00 N03+N02 0.02 0 04 0.14 0 00 MG/L 27 05/87 09/00 PHOSPHATE ORT}IO-DISS 0.03 O15 0.79 000 MG/L 27 05/87 09/00 7'ARLF. 4A SIl'E: 068274C (}YELL 006-82-74C,WADGE O\'ERBURDfN)