2012-02-28_REVISION - M1980244 ‎(95)‎

• Permit No: M1980244
• IBM Index Class Name: REVISION
• Doc Date: 2/28/2012
• Doc Name: VOL. 2, Appendix 2: Hydrologic Evaluation Part 1
• From: CRIPPLE CREEK & VICTOR GOLD MINING COMPANY
• To: DRMS
• Type & Sequence: AM10
• Email Name: TC1
• Media Type: D
• Archive: No

PARAMETER
Number of
Analyses
Number of
Non - Detect
Analyses
Maximum
Value
Minimum
Value
Average
Value
Standard
Deviation
Median
Value
Acidity, Total (mg/I as CaCO3)
36
30
14
<10
6
2
<10
Alkalinity, Bicarbonate (mg/I as CaCO3)
36
0
82.9
74.7
78.8
2.0
78.55
Alkalinity, Carbonate (mg/I as CaCO3)
35
0
0
0
0
0
0
Alkalinity, Total (mg/I as CaCO3)
36
0
68
61.2
64.6
1.6
64.4
Aluminum, Dissolved (mg/I as Al)
36
13
0.034
<0.01
0.013
0.008
0.012
Arsenic, Dissolved (mg/I as As)
36
36
<0.005
<0.005
0.0025
ND
<0.005
Cadmium, Dissolved (mg/I as Cd)
36
35
0.001
<0.001
0.001
0.0001
<0.001
Calcium, Total (mg/I as Ca)
36
0
240
153
203
22
199
Chloride,Total in Water mg/I
36
0
10
7
8.4
0.8
8.32
Chromium, Dissolved (mg/I as Cr)
36
32
0.002
<0.001
0.001
0.0003
<0.001
Copper, Dissolved (mg/I as Cu)
36
36
<0.005
<0.005
0.0025
ND
<0.005
Cyanide Free, mg/I
36
36
<0.01
<0.02
0.005
ND
<0.01
Cyanide, Total (mg/I as CN)
36
36
<0.01
<0.01
0.005
ND
<0.01
Fluoride, Total (mg/I as F)
36
0
0.559
0.166
0.209
0.081
0.187
Hardness, Total (mg/I as CaCO3)
36
0
821
577
726
61
723.5
Iron, Dissolved (mg/I as Fe)
36
15
0.744
<0.05
0.155
0.206
0.073
Lead, Dissolved (mg/I as Pb)
36
36
<0.001
<0.001
0.001
ND
<0.001
Magnesium, Total (mg/I as Mg)
36
0
59
47.4
53.7
2.8
53.9
Manganese, Dissolved (mg/I as Mn)
36
0
3.45
0.781
2.63
0.61
2.725
Mercury, Total (mg /I as Hg)
36
36
<0.0002
<0.0002
0.0001
ND
<0.0002
Nickel, Dissolved (mg/I as Ni)
36
13
0.009
<0.005
0.005
0.002
0.005
Nitrate Nitrogen, Total (mg/I as N)
36
35
0.07
<0.05
0.03
0.01
<0.05
Nitrite Nitrogen, Total (mg/I as N)
36
36
<0.05
<0.05
0.025
ND
<0.05
Nitrogen, Ammonia, Total (mg/I as N)
36
36
<0.05
<0.05
0.025
ND
<0.05
Oil and Grease Visual (No =0, Yes =1)
55
0
0
0
0
0
0
Oxygen, Dissolved mg/L
60
0
8.08
0.09
1.76
1.72
1.2
pH, Field, Standard Units
60
0
7.36
6.94
7.16
0.08
7.16
Potassium, Total mg/I as K)
36
0
2.36
1.65
2.08
0.21
2.105
Selenium, Dissolved (mg/I as Se)
36
36
<0.005
<0.005
0.0025
ND
<0.005
Silver, Dissolved (mg/I as Ag)
36
35
0.001
<0.001
0.001
0.0001
<0.001
Sodium, Total (mg/I as Na)
36
0
38.8
21.4
28.4
4.3
28.05
Specific Conductance,Field (umhos /cm @ 25C)
60
0
1430
1082
1284
91
1294.5
Sulfate, Total (mg/I as SO4)
36
0
791
548
700
59
701.5
Temperature, Water (Degrees Centigrade)
60
0
12.5
5.8
8.9
1.6
9
Total Dissolved Solids, mg /I
36
0
1200
948
1114
52
1125
Total Suspend Solids, mg/I
36
29
28
<10
8
6
<10
Water Level,Distance From Measuring Point (Feet)
60
0
113.5
93.52
101.6
4.9
100.73
Weak Acid Dissociable Cyanide, mg/I
36
36
<0.01
<0.01
0.005
ND
<0.01
Zinc, Dissolved (mg/I as Zn)
36
36
<0.05
<0.05
0.025
ND
<0.05
TABLE 4 -11
SAMPLE LOCATION: VIN -2B
DRAINAGE: VINDICATOR
PERIOD OF RECORD: 2004 -2011
ND = Not determined. Applicable in two cases: number of analyses = 1; or all analyses are non- detect.
Non - detect analyses are set at 1/2 the detection limit for average and standard deviation calculations.
Median calculations use the laboratory analyses with less than detection values as negative