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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />AHR4 MINREC, INC., NORTH THOMPSON CREEK MINES <br /> REFUSE PILE PIEZOMETER <br /> D-l A <br /> WATER <br />DATE LEVEL pH TEMP 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 12 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 8'L 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 i.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 i.l 9 4105 <br />JUN 85 25.1 6.5 10 2800 <br />SEP 85 32.5 7.0 10 3150 <br />DEC 85 31.0 7.0 4 3500 <br />hIAR 86 31.5 7.0 9 2800 <br />JUN 86 31.5 7.0 10 3094 <br />SEP 86 2i.0 i.0 4'l60 <br />DEC 86 30.7 7.1 9 2482 <br />MAR 87 30.8 7.i 6 3602 <br />JUN 8i 32.2 7.1 lU 3588 <br />SEP 87 3'2.2 7.U 11 3511 <br />DEC 87 31.8 6.8 8 3618 <br />MAR 88 3'L .0 6.9 10 3737 <br />JUN 88 34.2 6.8 12 3400 <br />SEP 88 34.4 7.0 10 4300 <br />DEC 88 34.6 7.2 9 4400 <br />MAR 89 3'L.5 7.0 8 3700 <br />JUN 89 <br />SEP 89 34.8 i.0 10 4200 <br />DEC 89 33.i 6.8 8 4300 <br />MAR 90 34.1 7.0 10 4300 <br />JUN 90 32.9 7.2 11 4300 <br />SEP 90 34.5 6.9 14 4100 <br />