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<br />TABLE: B <br />COLORADO YAMPA COAL COMPANY: MINE 1, 2 AND ECKMAN PARK MINE <br />1999 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />SITE: OISS (WELL 001-S-5, FOIDEL CREEK ALLUVIUM) <br />CATEGORY PARAMETER ANALYSIS TYP£ UNITS OCT NOV DEC ~ JAN ~ FEB MAR APR MAY JUN <br />'FIELD PARAMETERS 'DATE 1021/99, I I/23/99' 12/10/99' 2/R/00~ 3/7/00 4/17/00 52/00, 6/12/00 6/17/0 <br /> <br />WATER ELEVATION <br />I <br />~ <br />,FT ABOVE MSL <br />~ 6801.88 6801.91 <br />6801.91' 6801.84 <br />6801.94 6802.64 <br />6802.54 <br />6801.89 6801.98 <br /> :WATER LEVEL ~FT 3.07 3.04' 3.04 3.11 3.01 2.31 2.41 3.06 297 <br />PHYSICAL PROPERTIES TEMPERATURE iF1ELD 'DEGREESC 10.9 7.4' 7.31 5.91 6; 6.51 7.6' 13.6 7.8 <br /> 'CONDUCTIVITY 'FIELD 'UMHOS/CM ?230 2240 2270 2320 2340 2460 2300 3020 221 <br /> ' 'iLAB 'UMHOS/CM 2130 2049 2060 <br />i PH FIELD PH 7.81 7.74' 7.78 7.95', 7.87 7.61; 7.71 7.91 74 <br /> ~iLAB PH 748 6.07 7.6 i, <br /> SOLIDS ITDTAL-DISS ~MG/L. 1631 ~ 1723, I 1603 <br />,CATIONS 'CALCIUM .DISSOLVED ~MG/L 190 177' 129 <br /> MAGNESIUM jDISSOLVED ~MG/L 58.4 ~ 74.8 ~ 70.1 <br /> SODIUM (DISSOLVED MG/L 214 220 212 <br />ANIONS BICARBONATE iA5 HCO7 'MG/l. 589 ' S6U 347' <br /> 'CARBONATE 'AS C03 MG/L < L0 ~ < L0 < L0. <br /> SULFATE ;NOT APPLICABLE 'MG/L ~ 71R 801', ' 805' <br />PRIMARY CADMIUM (DISSOLVED ~UG/L ~ <5.0' i c5.0 ~ <5.0, <br /> LEAD ~i DISSOLVED UG/L <50.0 - <50.0 <60.0 <br /> MERCURY DISSOLVED UGJL ~ <0.2 ~ <0.2 i <0.2' <br />' SELENIUM ~I DISSOLVED ~UG/L c2.0. ~ <2.0; ! 3~ <br />SECONDARY (,IRON (DISSOLVED '~UG/L 10 <10.0' <10.0~ <br /> MANGANESE ;DISSOLVED 'UG/L 135 ~ 106 <50~ <br />(TRACE METALS MOLYBDENUM (DISSOLVED 'UG/L ~ <50.0' <60.0 c50.0 <br />NUTRIENTS NITROGEN IAMMIUM•TOTAL IMG/L ~, 4.69 2.87 LI7 <br /> 'AMMIA-FREE MG/L i 0.25 0.15 1.17' <br /> 'NITRATE MG/L ~ c0.02 0.04 <br />~ <0.02 <br /> NITRITE 'MG/L 0.03 0.03 c0.02~ <br /> N03+N02 .MG/L ~ 0.03 i 0.07 <0.02 <br /> PHOSPHATE ORTHO-DISS MG/L 0.57 0.21 <0.01 <br />• <br />DATUM fiR04.95 <br />JUL AUG SEP <br />7/19/00 fl/9/00 9/12/00 <br />6801.02 6801.09 6801.21 <br />7.93 3.R6 3.74 <br />9.6 10.2 10.2 <br />2142 2234 227R <br />1920 <br />7 15 7.31 7.11 <br />7.26 <br />I b40i <br />17R <br />75.6 <br />209 <br />Sag <br />< Ln <br />760 <br />< 5.0 <br />< 50.0 <br />< 0.2 <br />< 2.0 <br />< 10.0 <br />123 <br />< 50.0 <br />1.59 <br /><n.os <br />0.16 <br />0.17 <br />0.33 <br />0.J1 0 <br />0 <br />I?EMEN V IRONMENT~LUHR00001CYCOTRBLESI'000 Wella.J, <br />