REP34600

• Permit No: C1981025
• IBM Index Class Name: Report
• Doc Date: 1/4/1999
• Doc Name: 1998 ANNUAL HYDROLOGIC REPORT
• Annual Report Year: 1998
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

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MINREC, INC., NOTRH THOMPSON CREEK MINES

REFUSE PILE PIEZOMETER - D-1A

WATER
DATE LEVEL pH TEMP COND ELE
Sep30 34.5 8.9 14 470D 7406.5
De~90 35.0 7.3 7 4400 7406.D
Mar-91 32.1 7.1 9 3500 7408.9
Jun•91 34.4 7.0 12 3900 7406.6
Sep-97 34.9 6.9 17 4400 7406.7
Der:91 34.9 7.0 9 4400 740fi.1
Mar-92 35.0 8.9 11 4300 7408.0
Jutr-92 34.9 7.1 10 4200 7408.1
Sep•92 34.8 7.0 11 3600 7406.2
Dea92 35.0 6.8 10 4600 7408.0
Mar-93 31.8 7.2 10 3800 7409.2
Jurt-9fi 34.4 7.0 10 3400 7406.8
Sep•93 34.7 8.9 70 4100 7408.3
Dec93 34.7 6.8 B 4500 7408.3
Mar-9~4 34.4 6.7 10 4300 7408.6
Jun-94 30.9 6.5 10 4300 7410.7
Sep-94 37.0 7.0 12 4500 7410.0
DM~ 94 34.2 6.8 8 4400 7406.8
Mar-95 30.0 7.0 7 3500 7411.0
Jun•95 32.1 6.9 17 4000 7408.9
Sep55 34.4 6.7 12 4200 7408.6
De~95 34.5 7.7 11 4200 7406.5
Mar-96 30.8 7.0 7 3400 7410.2
Jur>-96 34.4 8.6 12 4200 7406.6
Sep•96 34.7 6.8 11 4300 7406.3
Dec•96 35.1 7.2 5 4100 7405.9
Mar•9T 33.4 7.1 8 3800 7407.6
Jun-97 32.3 6.6 10.6 3900 7408.7
Sep-97 34.9 8.9 72.9 4100 7406.7
Dee-97 34.1 6.6 70.3 4200 7406.9
Mar-98 30.8 6.6 11.7 3800 7410.2
Jun•98 33.8 6.9 13.3 3600 7407.4
Sep-9tf 34.0 7.1 12.5 3900 7407.0
Dee-98 33.8 7.0 12.0 4100 7407.2
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