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• • • <br />TABLE 15 <br />BTU, EMPIRE CORPORATION <br />2007 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONITORING DATA <br />SITE: 9 MN (9 MINE WELL, TWENTYMILE SANDSTONE) DATUM 6383.29 <br />~eTFCnov ne Fe MFTFA a Ne7.Y.Cl.C TYPF, iTNiTC iA_N FF,R MAR APR MAY .TIJN JUL AUG ~ SEP OCT NOV DEC <br />FIELD PARAMETERS DATE 2/13/20071 4/12/2007 8/14/2007 11/9/2007 <br /> WATER ELEVATION FT ABOVE MSL 6293.18 6293.78 6292.66 6292.78 <br /> WATER LEVEL Depth 90.11 89.51 90.63 90.51 <br />PHYSICAL PROPERTIES TEMPERATURE FIELD DEGREES C 13.1 11.4 11.6 11.7 <br /> CONDUCTIVITY FIELD UMHOS/CM 600 530 5201 510 <br /> LAB UMHOS/CM I 490 <br /> PH FIELD PH 8.01 7.53 7.571 7.55 <br /> LAB PH 7.33 1 <br /> ALKALINITY TOTAL MG/L 250 <br />CATIONS CALCIUM DISSOLVED MG/L 55 <br /> MAGNESIUM DISSOLVED MG/L 27 <br /> SODNM DISSOLVED MG/L 17 <br />ANIONS BICARBONATE AS HC03 MG/L 300 j <br /> CARBONATE AS C03 MG/L < 1.0 <br /> CHLORIDE NOT APPLICABLE MG/L 5 ~ <br /> SULFATE NOT APPLICABLE MG/L 28 <br />PRIMARY ARSENIC DISSOLVED UG/L < 2.0 <br /> CADMNM DISSOLVED UG/L < 5.0 <br /> LEAD DISSOLVED UG/L l < 50.0 <br /> MERCURY DISSOLVED UG/L < 0.2 <br /> SELENIUM DISSOLVED UG/L < 2.0 <br />SECONDARY ZINC DISSOLVED UG/L 170 <br /> IRON DISSOLVED UG/L < 10.0 <br /> MANGANESE DISSOLVED UG/L 287 <br />TRACE METALS BORON .DISSOLVED UG/L 30 <br /> MOLYBDENUM DISSOLVED UG/L < 50.0 <br />NUTRIENTS NITROGEN NITRATE MG/L < 0.02 <br />G:\Environmental\EMPiRE\PJ-IR\2007\Tables 2007\SAMPLING.xIs <br />