2012-02-28_REVISION - M1980244 ‎(96)‎

• Permit No: M1980244
• IBM Index Class Name: REVISION
• Doc Date: 2/28/2012
• Doc Name: VOL. 2, Appendix 2: Hydrologic Evaluation Part 2
• 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)
40
28
36
<10
14
7
<10
Alkalinity, Bicarbonate (mg /I as CaCO3)
43
17
400
<10
75
95
23.5
Alkalinity, Carbonate (mg/I as CaCO3)
43
0
0
0
0
0
0
Alkalinity, Total (mg/I as CaCO3)
20
16
38.1
<10
11.1
7.0
<10
Aluminum, Dissolved (mg/I as Al)
30
16
10.9
<0.05
0.96
2.49
<0.05
Arsenic,Total Recoverable in Water as As mg/I
43
43
<0.005
<0.005
0.005
ND
<0.005
Cadmium, Dissolved (mg/I as Cd)
43
34
0.012
<0.001
0.002
0.002
<0.001
Calcium, Total (mg/I as Ca)
43
0
434
4.08
95.43
70.02
76.1
Carbonate (mg/I as CO3 ion)
27
26
0
<10
10
2
<10
Chloride,Total in Water mg/I
43
8
22.3
<0.5
6.2
5.6
5
Chromium,Total Recoverable in Water as Cr mg/I
16
14
0.003
<0.001
0.001
4.5E -19
<0.001
Copper, Dissolved (mg/I as Cu)
43
39
0.007
<0.005
0.005
0.0005
<0.005
Cyanide Free, mg/I
43
43
<0.01
<0.01
0.01
ND
<0.01
Cyanide, Total (mg/I as CN)
43
43
<0.01
<0.01
0.01
ND
<0.01
Flow, Rate Gallons /Min
94
1
419
<0.5
30.7
73.5
0
Fluoride, Total (mg/I as F)
43
0
12.1
0.824
4.373
2.366
3.81
Hardness, Total (mg/I as CaCO3)
42
0
1433
19.8
366.7
250.6
286
Iron, Dissolved (mg/I as Fe)
43
12
1.04
<0.1
0.15
0.19
0.08
Iron,Total Recoverable in Water as Fe mg/I
43
0
4.71
0.062
0.519
0.545
0.276
Lead, Dissolved (mg/I as Pb)
43
42
0.002
<0.001
0.001
0.0002
<0.001
Magnesium, Total (mg /I as Mg)
43
0
84.8
2.34
30.83
19.23
24.1
Manganese, Dissolved (mg/I as Mn)
42
0
41.9
0.044
8.629
11.502
4.335
Mercury, Total (mg/I as Hg)
43
43
<0.0002
<0.0002
0.0002
ND
<0.0002
Nickel, Dissolved (mg /I as Ni)
43
18
0.26
<0.005
0.027
0.052
0.008
Nitrate Nitrogen, Total (mg/I as N)
43
40
0.269
<0.05
0.053
0.013
<0.05
Nitrite Nitrogen, Total (mg/I as N)
43
42
0.084
<0.05
0.050
7.02E -18
<0.05
Nitrite plus Nitrate, mg/I as Nitrogen
26
22
0.0998
<0.05
0.057
0.017
<0.05
Nitrogen, Ammonia, Total (mg /I as N)
43
36
0.21
<0.05
0.06
0.03
<0.05
Oil and Grease Visual (No =0, Yes =1)
29
0
0
0
0
0
0
Oxygen, Dissolved mg/L
42
0
11.9
1.4
6.2
2.4
6.2
pH, Field, Standard Units
43
0
8.1
4.33
6.70
0.95
6.80
Potassium, Total mg/I as K)
40
0
18
0.96
6.44
4.27
5.68
Selenium, Dissolved (mg/I as Se)
43
43
<0.005
<0.005
0.005
ND
<0.005
Silver, Dissolved (mg/I as Ag)
43
42
0.001
<0.001
0.001
0.000
<0.001
Sodium, Total (mg /I as Na)
40
0
160
5.17
44.2
33.6
31.85
Specific Conductance,Field (umhos /cm @ 25C)
43
0
2440
67.5
900.4
596.1
629
Sulfate, Total (mg/I as 504)
43
0
1551
11.3
394.7
324.3
289
Temperature, Water (Degrees Centigrade)
43
0
25.4
0.4
12.9
6.7
14
Total Dissolved Solids, mg /I
43
0
2373
107
658
450
492
Total Suspend Solids, mg /I
43
31
133
<10
14
11
<10
Weak Acid Dissociable Cyanide, mg/I
43
43
<0.01
<0.01
0.01
ND
<0.01
Zinc, Dissolved (mg/I as Zn)
43
22
5.19
<0.05
0.47
0.98
<0.05
TALE 6 -3
SAMPLE LOCATION: GV -03
DRAINAGE: GRASSY VALLEY
PERIOD OF RECORD: 1997 -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