| Relationships between selected water quality parameters from product water of discharging coal bed mathane wells in the Powder River Basin and the Wildcat Creek Watershed in Wyoming. The following figures represent data available from the U.S. Geological Survey and Redstone Corporation. |
Figure 7. Na (sodium concentration, mg/l) vs. EC (electrical conductivity uS/cm)
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Figure 8. EC (uS/cm) vs. TDS (total dissolved solids, mg/l) |
Figure 9. Na (mg/l) vs. Alkalinity (mg/l)
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Figure 10. Na (mg/l) vs. SAR (sodium adsorption ration, unadjusted)
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Figure 11. Na + Alkalinity (mg/l) |
Parameter |
Average |
Range |
pH |
7.3 |
7.7/6.8 |
TDS (mg/l) |
922.56 |
2010/270 |
Na (mg/l) |
311.25 |
780/130 |
Ca (mg/l) |
34.84 |
69/5.9 |
Mg (mg/l) |
18.65 |
51/1.58 |
EC (uS/cm) |
1342.79 |
3020/570 |
Alkalinity |
966.6 |
2320/420 |
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