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<br />t~ 19 • <br />EMPIRE ENERGY COAL CORP. <br />SUMMARY OF HATER OUAIITY DATA <br />STATION NUMBER: 7NA --- 7 NORTH ANGLE DISCHARGE <br />Average Std Mexinun Mininun Units Count Period <br />PRIMARY <br />ARSENIC DISSOLVED 1.333 0.6 2.000 1.000 UG/L 3 04/89 - 10/89 <br /> TOTAL 2.000 0.0 2.000 2.000 UG/L 1 06/90 - 06/90 <br />BARIUM DISSOLVED 110.000 0.0 110.000 110.000 UG/L 1 08/89 - 08/89 <br />CADMIUM DISSOLVED 5.333 0.6 6.000 5.000 UG/L 3 04/89 - 10/89 <br /> TOTAL RECOV 0.100 0.0 0.100 0.100 UG/L 1 06(90 - 06/90 <br />CHROMIUM TOTAL -D ISS 10.000 0.0 10.000 10.000 UG/L 1 08/89 - 08/89 <br />LEAD DISSOLVED 20.000 0.0 20.000 20.000 UG/L 3 04/89 - 10/89 <br />MERCURY DISSOLVED 0.100 0.0 0.100 0.100 UG/L 3 04/89 - 10/89 <br /> TOTAL 0.100 0.0 0.100 0.100 UGlL 1 06!90 - 06190 <br />SELENIUM DISSOLVED 1.000 0.0 1.000 1.000 UG/L 3 04/89 - 10/89 <br /> TOTAL 1-000 0.0 1.000 1.000 UG/L 1 06/90 - 06/90 <br />SILVER DISSOLVED 0.100 0.0 0.100 0.100 UG/L 1 08/89 - 08/89 <br /> TOTAL RECOY 0.100 0.0 0.100 0.100 UG/L 1 06/90 - 06/90 <br />SECONDARY <br />COPPER DISSOLVED 10.000 0.0 10.000 10.000 UG/L 1 08/89 - 08/89 <br /> TOTAL RECOV 20.000 0.0 20.000 20.000 UG/L 1 06/90 - 06/90 <br />21NC DISSOLVED 10.000 0.0 10.000 10.000 UG/L 3 04/89 - 10/89 <br /> TOTAL RECOV 30.527 108.5 1230.000 0.030 UG/L 133 01(89 - 12/96 <br />IRON DISSOLVED 52.500 39.5 100.000 20-000 UG/L 4 04/89 06/90 <br /> TOTAL RECOV 220.448 221.7 1200.000 0.310 UG/L 90 01/89 - 12/96 <br />MANGANESE DISSOLVED 12.500 5.0 20.000 10.600 UG/L 4 04/89 - 06/90 <br /> TOTAL RECOV 33.333 23.1 60.000 20.000 UGlL 3 04/89 - 06190 <br />Report Date: 08-APR-97 Pege: 3 of 4 <br />Report Name: 110A020R <br />