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

Schwartzwalder Mine -Hydrologic Evaluation of Mine Closure and Reclamation 116
Table 30. Water Quality in the Sumps
Parameter Sump 1 Sump 1 Sump 1 Sump 1 Sump 2 Sump 3 Sump 4 Sump 4 Sump 4 Sump 4
11/15/99 5/21/03 12/16/03 3/22/05 11/15/99 11/15/99 11/15/99 11/25/03 3/22/05 12/16/06
Conductivity (µMhos) 671 535 752 463
Total diss. solids (mg/L) 410 935 424 417 340 510 300 236 252
Total susp. solids (mg/L) <4. <4. ul. <4.
total (mg/L)
Hardness 227 201 336 188
,
Bicarbonate (mg/L) 171 130 144 96 102
Alkalini , total m 102 141 130 118 100 114 96 96 84
Nitrate Nitrogen (mg/L) 0.5 0.7 1.5 0.9
total (mg/L)
Ammonia 0.29 <0.02 <0.02 <0.02
,
Calcium, diss. (mg/L) 146 78 79.3 44
43
1
total (mg/L)
Calcium 55.4 49 84.5 48.6 .
,
diss. (mg/L)
Sodium 54.8 26.1 20 17.3 39.1 39.8 27.5 8 12.3
,
diss. m
Potassium 4.6 9.29 26 6.1 3.3 3.6 <3. 3.9 3.3
,
Sulfate (mg/L) 150 451 150 174 139 268 110 37 59
Fluoride (mg/L) 0.6 0.6 0.6 0.4
Chloride (mg/L) 52
0 21.2
2
<0 36
2
<0 34
2
<0 15.3
04
0 16
<0.03 12.3
<0.03 32
<0.2
<0.2
<0.2
Aluminum, diss. (mg/L) <0.
3 . . . . <0
2 <0
1
Aluminum, total (mg/L)
L
i 005
<0 <0.2
001
0 <0.2
<0
001 0.4
0.001 0.006 <0.005 <0.005 .
<0.001 .
<0.001 <0.001
ss. m
Antimon , d
Antimony, total (mg/L) . .
0.001 .
0.001 0.002 <0.001 <0.001

diss. (mg/L)
Arsenic <0.005 <0.005 <0.005 <0.005
,
total (mg/L)
Arsenic <0.01 <0.01 <0.0] <0.01 <0.01
,
diss. (mg/L)
Barium 0.042 0.037 0.038 0.046
,
Beryllium, diss. (mg/L) <0.001 <0.001 <0.001 <0.001
Boron, total m L) 0.07 0.07 0.07 <0.05
diss. (mg/L)
Cadmium <0.001 <0.001 <0.001 <0.001
,
Chromium, diss. (mg/L) <0.005 <0.005 <0.005 <0.005
Cyanide, total (mg/L)
diss. (mg/L)
Copper <0.01
<0.005
<0.005
<0.005
<0.005 <0.01
<0.005 <0.01
<0.005 <0.01
<0.005
<0.005
<0.005
0.001
,
total (mg/L)
Copper <0.005 <0.005 <0.005 <0.005 <0.005
,
diss. m
Iron
<0.03
<0.03
0.05 <0.03 0.06 <0.03 <0.03 0.14 <0.03
,
Iron, total (mg/L)
0.045
0.05
1.31 <0.03 0.47

<0.03
Iron, Ferrous (Fe2+) 46
0
Ferric (Fe3+) (mg/L)
Iron 0.045 1.3 .
,
diss. (mg/L)
Lead <0.005 <0.005 <0.005 <0.005
,
total (mg/L)
Lead
<0.005 <0.005 <0.005 <0.005 <0.005
,
diss. m L
Ma esium 21.5 56.4 26 31 19.1 30.3 16.2 12 13.6
,
diss. (mg/L)
Manganese 0.09 0.02 <0.01 <0.01 <0.01 0.32 <0.01 <0.01 0.02 <0.0]
,
Manganese, total (mg/L) 0.02 0.02 0.05 <0.01 0.02
diss. (mg/L)
Mercury <0.0002 <0.0002 <0.0002 <0.0002
,
total (mg/L)
Mercury <0.0001 <0.0001 <0.0001 <0.0001 <0.0001
,
Molybdenum, diss. (~ng/[,) 0.119 0.067 0.057 0.081 0.12 0.073 0.059 0.024 0.015 0.015
Nickel, diss. m <0.01 <0.01 <0.01 <0.01
Selenium, diss. (mg/L)
<0 O l
<0.01
<0.01
<0.01
diss. (mg/L)
Silver <0.0002 <0.0002 <0.0002 <0.0002
,
Silver, total (mg/L)
01
<0 <0.001
001
<0 <0.001
001
<0 <0.01
00]
<0
<0.01
<0.01
<0.01 <0.001
<0.001 <0.01
<0.001
<0.001
Thallium, diss. (mg/L) . . . .
Vanadium, diss. (mg/L) <0.01 <0.01 <0.01 <0.01
001
<0
<0
001
Thallium, total m <0.001 <0.001 <0.001 . .
Zinc, diss. (mg/L) 0.03 0.03 0.02 <0.01
013
0
01
0
Zinc, total (mg/L) 0.232 0.066 0.045 .
11
0 .
0962
0 0988
0
Uranium, diss. (mg/L) 1.62 0.74 0.873 . .
0005
0 .
Uranium, suspended(mg/L) 0.004 0
7 .
0
3
Radium-226, diss. (pCi/L) 14.9 6.3 4.8 . .
1
<0
Radium-226_ susp. (oCi/Ll _ 0.5 .
Note: See Table 31 for additional uranium analyses for water samples collected from the sumps, 1990 - 2007
4109B.071116 Whetstone Associates