2007-11-07_HYDROLOGY - M1977300

• Permit No: M1977300
• IBM Index Class Name: HYDROLOGY
• Doc Date: 11/7/2007
• Doc Name: Hydrologic evaluation of mine closure & reclamation
• From: Whetstone Associates
• To: Cotter Corpoartion
• Media Type: D
• Archive: No

5
Schwartzwalder Mine -Hydrologic Evaluation of Mine Closure and Reclamation
Table 2. Monthly Precipitation at Ralston Reservoir
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
S.D.
SKEW
MAX
MIN
# YRS
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YR
11
93
0.00 z 0.00 z 0.00 z 0.00 z 5.52 1.50 0.61 0.43 0.43 1.81
26
1 0.60
31
2 1.03
34
1 .
21.84
0.68 0.39 2.09 1.83 4.61 3.31 0.43
06
2 3.25
85
0 0.34
06
1 .
0.24 .
0.68 .
0.14 16.54
0.61 0.54 1.84 3.04
22
1 4.94
11
4 0.54
44
0 .
1.74 .
1.20 .
0.49 1.27 0.40 0.96 15.25
0.08 0.57
28
0 2.77
78
0 .
40
0 .
4.66 .
1.52 2.14 3.22 2.67 1.18 0.31 1.80 19.24
0.28
06
0 .
0.15 .
5.47 .
1.94 5.28 3.94 2.17 1.50 0.51 0.27 3.32 0.73
23
0 25.34
03
18
.
0.18 1.36 a 1.80 3.03 0.63 2.03 1.84 2.28 0.86
1
70 3.79
34
0 0.00
11
2 .
0.68 .
14.87
0.61 1.05 0.95 1.86 2.09 1.79 1.54
33
1 0.15
1
05 .
70
0 .
2.20 .
1.71 0.92 18.80
0.00 z 1.00 0.76 3.53 2.93
4
01 2.67
17
5 .
58
0 .
2.15 .
0.60 1.30 1.24 1.81 23.16
0.92 1.68
80
0 1.82
62
1 1.88
90
0 .
3.21 .
1.44 .
1.21 1.11 1.32 0.18 0.40 1.41 14.07
0.47
1
16 .
0.92 .
0.55 .
1.53 2.02 2.93 1.86 2.21 2.70 0.57 0.58 1.16
18
0 18.19
51
19
.
0.46 0.44 4.72 1.99 1.96 0.22 2.72 1.91 3.03
99
0 0.66
77
0 1.22
99
2 .
0.02 .
20.83
0.80 0.12 0.35 2.19 3.93 3.36 2.82
14
1 2.49
48
3 .
08
0 .
0.66 .
1.72 0.54 17.15
0.69 0.00 5.52 0.27 1.15
1
38 1.90
81
1 .
85
0 .
0.61 .
2.10 t.54 1.40 0.33 14.65
0.14 0.50 2.12
56
1 1.87
35
3 .
94
0 .
1.15 .
0.60 2.15 0.52 0.64 1.51 0.26 13.95
0.47
46
0 0.80
96
0 .
20
1 .
4.86 .
6.55 3.85 0.70 0.52 1.85 0.23 0.88 0.09 22.15
23
17
.
0.95 .
0.19 a .
1.54 1.23 5.06 1.46 0.89 0.46 3.75
43
1 0.53
65
2 0.84
17 b
1 0.33
0.92 .
21.66
0.52 1.30 0.33 b 4.31 1.10
68 b
2 2.91
51 b
1 1.80
16 b
2 3.22
1.84 a a
.
1.16 b .
1.60 .
0.00 z 0.89 a 19.82
0.85
60 b
0 0.14
25 d
0 2.86
0.50 4.13
5.67 .
3.84 .
2.51 .
3.47 4.88 2.23 1.05 a 0.55 0.87 26.42
94
17
.
0.74 .
0.42 1.62 1.33 1.49 a 1.63 4.47 b 2.51 2.00 a 0.81 a 0.52
89
0 0.40
40
0 .
40
19
0.55 0.67 a 1.54 2.18 3.32 1.19 2.35
58
0 3.50
66 b
1 2.41
29
2 0.40
1.71 a .
0.43 .
0.00 a .
11.85
0.60 0.34 0.95 0.02
30
3 2.82
44
1 0.45
54
1 .
0.61 .
1.38 .
0.25 0.18 0.37 0.65 15.78
0.06 1.57
31
t 4.43
64
0 .
26
4 .
1.21 .
3.23 2.14 3.48 1.38 2.38 2.07 0.31 22.90
0.49
34
1 .
0.09 .
0.93 .
3.98 1.43 2.03 0.54 3.85 b 0.39 2.27 0.55
4 0.20
08
3 17.60
99
17
.
0.43 0.45 1.38 0.60 0.47 0.47 2.34 4.29 0.89
03
0 2.75
00 z
0 0.8
00 z
0 .
0.00 z .
11.52 z
1.89 0.65 1.60 3.31 3.05 0.38 0.64 2.29 . . .
Peri od of Record Statistics
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
0.61 0.65 1.87 2.41 2.93 1.96 1.61 2.13 1.38 1.22 1.13
83
0 0.75
67
0 18.60
64
3
0.40 0.47 1.45 1.46 1.67 1.22 0.98 1.27
30
0 0.96
64
0 0.93
93
0 .
1.07 .
1.60 .
0.33
1.18 0.62 1.40 0.32 0.33
55
6 0.64
17
5 0.88
47
4 .
4.88 .
3.75 .
3.79 3.32 3.08 26.42
1.89 1.68
0
0 5.52
0 5.67
0
0 .
0.
7 .
0.
2 .
0.
3 0.29 0.09 0.29 0.~g OA9 11.
0.0g 9
. .29 .
9 3
0 3
0 3
0 26
Western Regional Climate Center (WRCC), data download for station 056816 (Ralston Reservoir, Colorado), file last updated on Sept
17,2007
SD = Standazd deviation
Provisional Data after 06/2007
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc, z = 26 or more days missing, A =Accumulations present
Long-term means based on columns; thus, the monthly row may not sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5 (Individual Months not used for annual or monthly statistics if more
than 5 days are missing.) Individual Years not used for annual statistics if any month in that year has more than 5 days
missing.
SOURCE:
NOTES:
2.4 Economic Geology
Uranium ore is hosted in a thin band of brittle garnet biotite gneiss and quartzite of the Schwartz Trend.
The generalized geologic map of the site (Figure 3) shows that the deposit is generally bounded by a
hornblende gneiss to the north and a mica schist to the south. The area is characterized by extensive
vertical fracturing, dominated by the Illinois and the Rogers fault systems. Primary mineralization occurs
in the brecciated Precambrian-age Schwartz Trend rocks. The deposit is essentially limited to Schwartz
Trend rocks; veins truncate within 20-30 feet in the mica schist. Dominant ore minerals include
pitchblende (uranium oxide) and coffinite (uranium sulfate).
Whetstone Associates •
4109B.071116