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<br />' AHR4 MINREC, INC., NORTH THOMPSON CREEK MINES <br />REFUSE PILE PIEZOMETER <br /> D-lA <br />' WATER <br /> DATE LEVEL pH TEhIP COND <br />' JUN 80 25.1 7.4 15 2910 <br /> SEP 80 28.8 7.4 13 2110 <br /> DEC 80 27.9 7.6 1'L 2515 <br /> MAR 81 22.0 7.6 11 3285 <br /> JUN 81 25.5 8.0 15 2865 <br /> SEP 81 32.2 7.7 10 3630 <br /> DEC 81 31.9 7.4 10 2150 <br />' MAR 82 31.0 6.8 8 4000 <br /> JUN 82 30.9 6.9 14 3600 <br /> SEP 82 33.5 7.0 10 4000 <br />' DEC 82 31.9 6.9 8 3090 <br /> MAR 83 39.1 7.2 8 3500 <br /> JUN 83 30.9 6.8 10 3400 <br /> SEP 83 34.8 7.0 11 2550 <br /> DEC 83 32.3 7.2 12 4100 <br /> MAR 84 28.5 7.0 10 3900 <br /> JUN 84 30.9 7.0 14 3250 <br />' SEP 84 31.6 7.1 13 3200 <br /> DEC 84 31.9 7.1 5 4250 <br /> MAR 85 26.3 7.1 9 4105 <br /> JUN 85 25.1 6.5 10 2800 <br />' SEP 85 32.5 7.0 10 3750 <br /> DEC 85 31.0 7.0 4 3500 <br /> MAR 86 31.5 7.0 9 2800 <br />' JUN 86 31.5 7.0 10 3094 <br /> SEP 86 27.0 7.0 4260 <br /> DEC 86 30.7 7.1 9 2482 <br />' MAR 87 30.8 7.7 6 3602 <br /> JUN 87 32.2 7•.1 10 3588 <br /> SEP 87 32.2 7.0 11 3571 <br /> DEC 87 31.8 6.8 8 3618 <br />' MAR 88 32.0 6.9 10 3737 <br /> JUN 88 39.2 6.8 12 3400 <br />' SEP <br />DEC 88 <br />88 34.4 <br />34.6 7.0 <br />7.2 10 <br />9 4300 <br />4400 <br /> MAR 89 32.5 7.0 8 3700 <br /> JUN 89 <br />' SEP 89 34.8 7.0 10 4200 <br /> DEC 89 33.7 6.8 8 9300 <br /> MAR 90 34.4 7.0 10 4300 <br /> JUN 90 32.9 7.2 11 4300 <br /> SEP 90 34.5 6.9 14 4100 <br /> DEC 90 35.0 7.3 7 4400 <br /> MAR 91 32.1 7.1 9 3500 <br />' JUN 91 34.4 7.0 12 3900 <br /> SEP 91 34.9 6.9 11 4400 <br /> <br />