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

TABLE 24. WATER QUALITY IN RALSTON CREEK
1998 - 2007
STATION SW-UP
SW-UP SW-UP SW-UP SW-UP SW-UP SW-UP SW-UP SW-UP SW-UP SW-UP SW-UP MIN MAX MEAN MEDIAN COUNT ND % ND
11/24/98 10/21/98 1 2/21/98 1/19/99 2/16/99 3/16/99 420/99 5118/99 6/14/99 7/21/99 9/14/99
0%
pH (std units) 8.0 7.8 7.5 7.4 7.7 7.7 7.7 7.1 7.4 7.8 7.1 8
500 7.6
214 7.7
194 10
10 0
0 0%
Conductivity (umhos) 500 206 204 185 221 184 193 114 141 194 114
80 400 149 131 10 0 0%
Total dissolved solids 400 127 138 80 131 135 133 101 115 131 <1 43 7
2 2
5 10 3 30%
Total sus ended solids <1. 2 3 <1. 2 1 43 3 <10. 11.7 .
73 84 .
80.0 .
81.5 4 0 0 %
Hardness, total 81 84 82 73 Na Na n/a n/a 0 0 n/a
Carbonate
n/a
n/a
n/a
n/a
0
0
a
Bicarbonate
55
39
51
74
39
74
55
53
4
0
Alkalinity, Dissolved 76 62 76 97 170 55 39 39 170 84 76 8 0 0%
Alkalinity, total 96
<0
1 <0
1 <0
1 <0
1
<0.1
<0.1 <0.1
<0.1
<0.5 <0.5
<0.1
<0.5
0.09
0.05
10
10
100%
Nitrate Nitrogen . . . .
0 0 0 0 <t <1. <t. 0 1 0.2 0 10 3 30%
Ammonia, total 0 0 0 .
13
9 3
23 24 13.9 24.3 21.8 23 8 0 0%
Calcium 23 24 23 20 23
<5 .
9
6 .
9.2 8.4 <5. 10 8.1 8.7 8 1 13%
Sodium, dissolved 8 10 9 8 . .
4
5 4
6 6 2.5 6.4 5.3 5.8 8 0 0%
Magnesium, dissolved 5.8 6.2 5.8 5.4 2.5 .
1
1 .
5 t.4
1 0.7 1.7 1.30 1.35 8 0 0%
Potassium, dissolved 1.3 1.7 1.4 1.3 0.7 17 .
8
2 4
7 .
9
1 7.4 28 16 15 10 0 0%
Sulfate 14 28 21 15 21 15 . . . 3
0 0.3 0.3 0.3 5 0 0%
Fluoride, total 0.3 0.3 0.3 0.3 0.3 14 10 11 13 . 1 1 1
Chloride 11 14 12 11 13 13 n/a Na Na Na 0 0 Na
Phosphorous
<0
1 <0.1 <0.5 0.21 0.25 5 5 100
Aluminum, dissolved <0.5 <0.5 <0.5 <0.5 . Na Na n/a n/a 0 0 Na
Aluminum, total
03
<0
003
<0
003
<0
003
<0.006 <0.006
<0.006 <0.003 <0.03 0.004063 0.003 8 8 100
Antimony, dissolved <0.008 <0. . . . Na n/a n/a n/a 0 0 n/a
Antimony, total
<0
005
<0.005 <0.005 <
0.003 <0.05 0.00680 0.0025 5 5 100%
Arsenic, dissolved <0.003 <0.05 . <0
003 <0
003 0.0015 0.0015 3 3 100%
Arsenic, total <0.003 <0.003 <0.003 <0
1 <0.1 <0.1 .
0.03 .
<0.1 0.044 0.05 5 3 60%
Barium, dissolved 0.04 0.03 . 0
03 0.04 0.033333 0.03 3 0 0%
Barium, total 0.04 0.03
<0
002 0.03
<0
002 <0
001 <0.001 <0.001 .
<0.001 <0.002 0.00075 0.00075 8 8 100%
Be Ilium, dissolved
ry <0.002 <0.001 <0.002 . . .
05
0 <0
05
05 <0 <0
05 <0.05 0.025 0.025 3 3 100
Boron, total
dissolved
Cadmium
<0.0002
<0.002
<0.0002
<0.001
<0.001 <
.
<0.001 .
. .
<0.0002 <0.002

<0
005 0.00045

0025
0 0.0005

0025
0 6

6 6

6 100%

100%
,
Chromium, dissolved <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 <0.005
<0.01 .
<0.01 .
0.0050 .
0.005 1 1 100%
Cyanide, total
Na
Na
n/a
n/a
0
0
n a
Copper

02
<

<0
02
<0
02
<0.005 <0.005 <0.005 <0.005 <0.02 0.007 0.01 7 7 100
Co er, dissolved
pp <0.02 0. . . n/a Na n/a n/a 0 0 n/a
Copper, total
<0
1
0
1 <
0.03
0.1
0.043
0.0325
6
4
°
Iron, dissolved <0.03 0.06 <0.03 <0.03 . . n/a n/a Na Na 0 0 n/a
Iron, total
Na
Na
n/a
n/a
0
0
n a
Iron, suspended
n/a
Na
Na
n/a
0
0
n a
Iron, Ferrous (Fe2+)
Na
Na
n/a
n/a
0
0
a
Iron, Ferric (Fe3+)
<0
005
<0.005 <0.005 <
0.002 <0.05 0.0067 0.0025 5 5 100%
Lead, dissolved <0.002 <0.05 . <0
002 <0
002 0.00 0.001 3 3 100%
Lead, total <0.002 <0.002 <0.002 <0
01 .
<0.01 .
<0.01 0.005 0.005 5 5 100%
Manganese, dissolved <0.01 <0.01 <0.01 <0.01 . n/a n/a n/a Na 0 0 n/a
Man anese, total
0002
<0
0.0003
0.0
0.0001
5
4
°
Mercury, dissolved <0.0002 <0.0002 0.0003 <0.0002 <0.0002 .
Na n/a n/a Na 0 0 n/a
Mercury, total
dissolved
bdenum
Mol
<0.01
<0.005
<0.01
<0.01
<0.01
0.017 <0.005
<0.005 <0.005 0.017 0.01

01
0 0.005

015
0 8

8 7

8 88

100%
,
y
Nickel, dissolved <0.04 <0.02 <0.04 <0.04 <0.04 <0.01 <0.01 <0.01
01 <0
01
<0 <0.01
<0
005 <0.04
<0
05 .
0.00625 .
0.00375 8 8 100%
Selenium, dissolved <0.005 <0.05 <0.005 <0.005 <0.005 <0.01 .
. .
0002
<0 .
01
<0 0014
0 0.00045 6 5 83%
Silver, dissolved <0.001 <0.005 0.0004 <0.0002 <0.0002 <0.01 .
n/a .
n/a .
Na Na 0 0 n/a
Silver, total
dissolved
Thallium
<0.001
<0.05
<0.001
<0.001 <0001
<0.001 <0.001 <0.001 <0.001 <0.05 0.004

5 0.0005

0
005 8

6 8

6 1000

100%
,
Vanadium, dissolved <0.01 <0.005 <0.01 <0.01 <0.01 <0.01 <0.005
n/a <0.01
n/a 0.00
n/a .
n/a 0 0 n/a
Thallium, total
<0
01
<0
01 <0.01 <0.005 <0.01 0.004071 0.005 7 6 86%
Zinc, dissolved <0.005 0.008 <0.005 <0.005 . . n/a n/a Na n/a 0 0 n/a
Zinc, total
0024
0036
0
002
0
0024
0
0022 0.0013
0
0.0014
0.0011
0.0028
0.00 ~a
0.0 ~6
0.002a
0.0 ~a
1
O
Uranium, dissolved 0.0028 0. . . . . a 0 0 n%
Uranium, suspended
n/a
n/a
n/a
n/a
0
0
n a
Uranium, total
0
1
0
0.1
0.050
0.05
2
1
50 °
Thorium-228, dis. (pCi/L) 0 . 0 0
1 0.05 0.05 2 1 50%
Thorium-230, dis. (pCi/L) 0 0.1 0 .
0 0000
0 0 2 2 100%
Thorium-232, dis. (pCi/L) 0 0 0 0 0.4 .
0.1600 0.2 5 2 40%
Radium-226, dis. (pCUL) 0.2 0.2 0.4 0 Na n/a Na n/a 0 0 n/a
Radium-226, susp. (pCVL) n/a n/a Na Na 0 0 n/a
Radium-226, total (pCi/L)
1
4
0.9
0.9
4.7
2.34
1.8
5
0
0 °
Gross Alpha, dis. (pCi/L) 2.9 1.8 4.7 .
<5 <5. 0.8 <5. 1.58 1.2 5 2 40%
Gross Beta, dis. CUL 0.9 1.2 0.8
.
NOTES: Mean and median statistic calculated using one-half detection limit (1/2 D.L.)
ND = number of non-detects
Results are in mg/L unless otherwise noted
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