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Open-File Report 00-372: Table 2

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Water co-produced with coalbed methane in the Powder River Basin, Wyoming: preliminary compositional data

by Rice, C.A. Ellis, M.S., and Bullock, J.H., Jr.

Table 2. Measured parameters and major and minor element concentrations in waters produced with coalbed methane from wells in 
the Powder River Basin, WY. Alkalinity is reported as mg/L HCO3-. Total dissolved solids (TDS) is calculated assuming approximately
half of the bicarbonate is lost on evaporation (Hem, 1992). Conductivity measured in lab at 20.0 oC. Temp=temperature; Cond=Conductivity;
ND=not determined; SAR=Sodium Adsorption Ratio; mS/cm=microsiemens per centimeter; mg/L=milligram per liter; <=detection limit. 
Sample
#		  pH Temp
oC		 Cond
mS/cm		 TDS
mg/L		 F
mg/L		 Cl
mg/L		 SO4
mg/L		 Br
mg/L		 Alkalinity
mg/L		 NH4+
mg/L		 Ca
mg/L		 K
mg/L		 Mg
mg/L		 Na
mg/L		 Ba
mg/L		 Fe
mg/L		 Si
mg/L		 Sr
mg/L		 SAR
1 7.3 25.3 1280 900 0.77 9.2 12 0.14 1000 1.5 52 6.9 16 300  0.59 0.75 5.3 1.0 9.3
2 7.3 22.1 1640 1050 0.55 64 8.4 0.80 1100 2.0 49 5.9 18 350  0.79 0.52 4.4 1.6 11
3 7.3 25.7 1130 730 0.63 7.8 3.4 0.07 840 1.5 39 4.7 9.0 240  0.42 1.0 5.1 0.82 9.0
4 7.3 23.0 1640 1120 0.50 60 1.5 0.85 1170 1.9 56 5.9 18 390  0.80 1.1 4.6 1.8 12
5 7.4 21.7 1480 970 0.61 48 5.1 0.68 1020 2.0 38 6.1 18 340  0.80 1.2 4.7 1.2 11
6 7.0 21.2 1280 840 0.80 9.5 <0.01 0.08 950 3.1 42 14 25 270  1.3 0.79 4.6 0.95 8.1
7 7.0 21.9 1040 660 0.68 8.6 <0.01 0.09 760 3.2 34 12 18 210  0.67 4.9 4.8 0.71 7.3
8 7.1 24.8 1080 700 1.0 9.4 0.89 0.08 800 2.3 41 9.2 15 230  0.62 3.8 5.2 0.85 7.8
9 7.2 23.6 1090 710 1.3 14 1.9 0.08 800 2.9 37 12 24 220  0.83 0.66 5.1 0.75 7.0
10 7.2 18.8 840 530 1.1 12 <0.01 0.09 600 1.9 26 7.2 12 170  0.45 0.29 4.2 0.52 7.0
11 6.9 21.2 860 550 1.7 11 <0.01 0.10 610 2.0 26 10 16 170  0.55 0.55 4.9 0.52 6.5
12 7.1 19.4 770 480 0.99 10 0.75 0.17 550 2.1 27 7.0 11 150  0.52 1.7 4.4 0.56 6.1
13 7.0 19.8 650 400 1.3 9.9 <0.01 0.08 460 1.8 20 5.8 8.2 130  0.32 0.70 4.5 0.38 6.2
14 7.1 15.9 640 390 1.6 6.3 0.73 0.04 440 2.4 19 7.3 9.8 130  0.37 2.4 4.3 0.35 6.0
15 6.9 21.4 990 620 1.1 9.0 0.73 0.07 680 2.5 33 11 19 200  0.71 0.42 4.7 0.65 6.9
16 7.1 17.7 770 470 1.6 10 17 0.09 490 2.4 32 5.9 13 150  0.23 0.58 5.3 0.56 5.7
17 7.6 11.7 3020 2010 ND 16 <0.01 0.11 2320 4.8 9.1 18 28 780  0.69 2.8 7.1 0.84 29
18 7.5 24.8 860 540 0.77 12 0.78 0.10 580 1.1 14 3.9 4.9 220  0.24 0.02 5.8 0.25 13
19 7.4 15.3 1090 780 1.2 8.9 8.6 0.08 890 2.5 44 8.6 21 240  0.62 0.12 3.9 0.85 7.4
20 7.2 17.1 1010 620 1.1 10 4.0 0.08 690 2.1 36 6.3 14 200  0.55 0.15 3.8 0.66 7.1
21 7.0 17.8 1660 1260 0.60 8.9 0.81 0.07 1520 5.3 69 15 46 360  1.4 0.82 4.8 1.9 8.2
22 6.8 16.1 1540 990 1.0 8.9 0.81 0.08 1130 4.0 57 13 36 300  0.95 0.71 4.2 1.3 7.7
23 7.6 15.6 1250 800 0.71 10 3.0 0.08 880 2.3 30 8.1 14 290  0.47 0.42 3.7 0.45 11
24 7.3 26.5 1610 1060 0.50 12 1.3 0.07 1220 3.4 50 14 22 350  1.6 0.55 5.6 0.92 10.4
25 7.3 14.9 1060 660 0.83 12 <0.01 0.04 720 2.0 50 9.6 18 200  0.97 0.63 4.3 1.0 6.3
26 7.1 18.6 650 390 1.2 9.2 0.82 0.05 420 1.7 19 7.3 9.5 130  0.38 0.26 4.5 0.40 6.1
27 7.2 19.3 780 510 0.67 17 0.03 0.09 570 1.4 23 6.3 11 170  0.47 0.30 4.8 0.52 7.3
28 7.3 16.4 630 410 1.1 12 0.01 0.09 450 1.1 17 6.1 8.7 140  0.34 0.17 4.9 0.40 6.9
29 7.0 22.1 1200 810 0.88 7.1 1.8 0.02 930 2.5 59 8.0 19 250  0.77 0.84 5.1 1.2 7.1
30.00 7.40 28.70 470.00 270.18 1.40 5.40 0.04 0.03 290.00 1.05 5.90 3.76 1.58 110.00 0.14 0.30 5.83 0.10 10.28
31 7.2 15.8 660 420 1.2 9.4 2.9 0.05 460 1.4 18 5.9 7.8 150  0.33 0.28 4.2 0.36 7.3
32 7.1 15.9 750 460 1.0 7.9 1.1 0.03 500 1.3 18 5.1 8.2 170  0.26 0.36 4.1 0.32 8.3
33 7.3 13.8 1230 850 0.91 9.8 2.4 0.08 980 2.7 45 9.0 21 270  0.76 0.39 4.1 0.99 8.3
34 7.5 21.7 570 370 0.98 5.2 0.22 0.02 430 1.2 10 5.1 4.0 130  0.19 0.91 5.2 0.17 8.8
35 7.1 18.2 1300 800 0.79 9.0 0.06 0.04 900 2.5 46 11 22 260  0.86 0.79 4.6 0.94 8.0
36 7.3 14.5 1080 770 0.96 11 0.07 0.05 850 2.7 44 9.7 24 250  0.66 0.36 3.9 0.95 7.6
37 7.2 22.4 1430 940 0.80 11 0.83 0.05 1090 2.6 43 14 25 300  0.87 0.34 4.8 0.95 9.1
38 7.4 13.9 1070 720 0.99 9.5 0.08 0.06 810 2.1 32 8.4 18 240  0.52 0.27 4.1 0.70 8.4
39 7.7 18.4 1850 1240 0.51 11 0.12 0.06 1380 2.0 19 6.6 8.6 500  0.35 0.20 4.7 0.38 24
40 7.6 19.3 2320 1550 0.47 7.7 0.92 <0.02 1760 2.3 27 7.0 18 610  0.59 0.81 4.8 0.42 22
41 7.6 20.1 1860 1270 0.48 13 8.1 0.07 1410 2.6 20 7.3 12 510  0.47 0.80 5.2 0.30 22
42 7.5 23.7 2260 1550 1.4 18 0.07 0.09 1740 2.9 15 8.4 8.7 630  0.58 0.26 5.6 0.27 32
43 7.5 20.4 2810 2000 1.0 14 0.16 0.07 2260 3.4 24 11 15 800  0.75 0.55 5.1 0.33 32
44 7.4 18.7 1580 1050 0.64 11 0.16 0.06 1160 2.3 15 6.2 8.2 430  0.37 0.28 4.7 0.26 22
45 7.6 15.7 2050 1390 0.42 6.4 1.9 <0.02 1570 2.4 35 7.5 19 530  0.62 0.32 4.6 0.69 18
46 7.4 20.5 2380 1600 0.85 6.7 1.6 <0.02 1810 2.4 26 7.7 19 640  0.73 0.19 4.7 0.53 23
47 7.6 21.0 2080 1320 0.56 13 1.2 0.05 1440 3.1 19 8.3 14 540  0.54 0.03 5.1 0.29 23
 
Mean 7.3 19.6 1300 850 0.92 13 2.4 0.12 950 2.4 32 8.4 16 300 0.62 0.8 4.8 0.70 12

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