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
Standard
Deviation
Median
Value
Acidity, Total (mg/I as CaCO3)
15
1
64
<10
37
15
38
Alkalinity, Bicarbonate (mg/I as CaCO3)
15
15
<10
<10
5
ND
<10
Alkalinity, Carbonate (mg/I as CaCO3)
15
0
0
0
0
0
0
Alkalinity, Total (mg/I as CaCO3)
15
15
<10
<10
5
ND
<10
Aluminum, Dissolved (mg/I as Al)
15
0
7.94
1.19
4.14
1.72
3.86
Arsenic, Dissolved (mg/I as As)
15
15
<0.005
<0.005
0.0025
ND
<0.005
Cadmium, Dissolved (mg/I as Cd)
15
0
0.016
0.003
0.011
0.003
0.01
Calcium, Total (mg/I as Ca)
15
0
160
92.5
113
18.4
110
Chloride,Total in Water mg/I
15
0
8
2.25
6.0
1.8
6.75
Chromium, Dissolved (mg/I as Cr)
15
15
<0.001
<0.001
0.0005
ND
<0.001
Copper, Dissolved (mg/I as Cu)
15
1
0.036
<0.005
0.023
0.008
0.023
Cyanide Free, mg/I
15
15
<0.01
<0.01
0.005
ND
<0.01
Cyanide, Total (mg/I as CN)
15
15
<0.01
<0.01
0.005
ND
<0.01
Fluoride, Total (mg /I as F)
15
0
4.48
0.425
1.99
1.41
1.75
Hardness, Total (mg/I as CaCO3)
15
0
546
319
406
59
409
Iron, Dissolved (mg/I as Fe)
15
15
<0.05
<0.05
0.025
ND
<0.05
Lead, Dissolved (mg/I as Pb)
15
15
<0.001
<0.001
0.0005
ND
<0.001
Magnesium, Total (mg/I as Mg)
15
0
35.5
19.4
29.9
4.2
31.1
Manganese, Dissolved (mg/I as Mn)
15
0
4.65
1.23
2.94
1.05
2.62
Mercury, Total (mg/I as Hg)
15
15
<0.0002
<0.0002
0.0001
ND
<0.0002
Nickel, Dissolved (mg/I as Ni)
15
0
0.086
0.021
0.065
0.017
0.065
Nitrate Nitrogen, Total (mg/I as N)
15
0
5.07
1.02
4.00
1.02
4.31
Nitrite Nitrogen, Total (mg/I as N)
15
15
<0.05
<0.05
0.025
ND
<0.05
Nitrogen, Ammonia, Total (mg/I as N)
15
14
0.124
<0.05
0.032
0.026
<0.05
Oil and Grease Visual (No =0, Yes =1)
14
0
0
0
0
0
0
Oxygen, Dissolved mg/L
15
0
7.87
4.96
6.56
0.83
6.7
pH, Field, Standard Units
15
0
6.65
4.57
5.00
0.59
4.8
Potassium, Total mg/I as K)
15
0
6.03
3.01
3.93
0.72
3.85
Selenium, Dissolved (mg/I as Se)
15
15
<0.005
<0.005
0.0025
ND
<0.005
Silver, Dissolved (mg/I as Ag)
15
15
<0.001
<0.001
0.0005
ND
<0.001
Sodium, Total (mg/I as Na)
15
0
24
5.71
17.6
4.4
18.6
Specific Conductance,Field (umhos /cm @ 25C)
15
0
1070
630
863
103
869
Sulfate, Total (mg/I as SO4)
15
0
544
330
438
59
423
Temperature, Water (Degrees Centigrade)
15
0
11.8
3.9
8.0
2.3
8.2
Total Dissolved Solids, mg/I
15
0
860
517
696
81
716
Total Suspend Solids, mg/I
15
12
77
<10
14
23
<10
Water Level,Distance From Measuring Point (Feet)
25
0
7.8
3.4
5.0
1.6
4.26
Weak Acid Dissociable Cyanide, mg/I
15
15
<0.01
<0.01
0.005
ND
<0.01
Zinc, Dissolved (mg/I as Zn)
15
0
0.765
0.226
0.511
0.150
0.476
TABLE 5 -6
SAMPLE LOCATION: SG04 -PZ
DRAINAGE: SQUAW GULCH
PERIOD OF RECORD: 2006 -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.