2007-12-19_REVISION - M1988112 ‎(13)‎

• Permit No: M1988112
• IBM Index Class Name: REVISION
• Doc Date: 12/19/2007
• Doc Name: Appendix A-Analysis of Pre-Mining Groundwater Quality in the vicinity of the West Pit.
• From: TELESTO
• To: DRMS
• Type & Sequence: AM3
• Media Type: D
• Archive: No

TECHNICAL MEMORANDUM
To: Bill Lyle
Date: January 3, 2004
Page 6
Table 2 Selected Pre-Mining Ground Water Chemistry (all concentrations in
units of mg/L)
Date TDS Fluoride Sulfate ManganeseT Iron
87-9
(8,530 amsl)
11/15/1987 260 2.2 57 0.053 0.02
1/13/1988 220 1.8 59 0.036 0.01
4/13/1988 140 1.9 52 0.03 0.01
5/19/1988 230 1.9 88 0.019 0.02
6/21/1988 250 2.1 50 0.024 0.01
8/19/1988 220 2.2 54 0.017 0.01
11/1/1988 270 2 62 0.018 0.01
1/20/1989 340 2 52 0.017 0.01
4/11/1989 260 - 56 0.014 -
5/10/1989 280 - 67 0.02 -
7/13/1989 230 - 54 0.021 -
8/8/1989 290 2 56 0.019 0.01
D87-24
(8,480 amsl)
11/15/1987 370 2.7 150 0.71 15
4/13/1988 280 2.6 130 0.17 0.02
5/19/1988 270 2.5 120 0.18 0.08
6/21/1988 370 2.8 120 0.14 0.01
8/19/1988 240 2.7 100 0.17 0.01
11/1/1988 270 3.2 65 0.99 1
4/11/1989 210 - 50 0.1 -
5/10/1989 330 2.1 79 0.58 -
7/13/1989 430 - 120 0.68 -
8/8/1989 350 - 93 1.8 2.5
1/10/1990 - - 120 5.7 3.5
D87-25
(8,419 amsl
11/15/1987 310 2.4 83 0.6 5.1
4/13/1988 200 2.7 89 0.017 <0.01
5/19/1988 180 3.4 96 0.03 0.01
6/21/1988 300 3.1 97 0.029 <0.01
8/19/1988 330 - 93 0.57 8.4
11/1/1988 420 - 100 0.74 15
4/11/1989 410 - 110 0.83 -
5/10/1989 450 - 100 0.766 -
7/13/1989 330 - 98 0.86 -
8/8/1989 440 - 110 0.73 -
` -" denotes no data reported
p: (projectsl2/1-newmont(smJuis)Lsm luisUr-18wtrgltylpremine westpit.doc