Table 7. Results of rank-sum tests between Wasatch aquifer and coalbed aquifers
[Bold text indicates a statistically significant difference with a p-value less than 0.05]
|
Constituent or major ion |
Rank-sum test probability |
|---|---|
|
Dissolved solids |
0.5261 |
|
Calcium |
0.4913 |
|
Magnesium |
0.7997 |
|
Sodium |
0.9710 |
|
Potassium |
0.4659 |
|
Bicarbonate |
0.1538 |
|
Chloride |
0.5622 |
|
Sulfate |
0.0001 |
|
Fluoride |
0.0221 |
|
Silica |
0.9706 |
Table 8. Kendall's tau correlation coefficients and resulting probabilities (p-values) between dissolved solids or major ions and well depth, Wasatch aquifer
[Bold text indicates a statistically significant correlation with a p-value less than 0.05]
|
Constituent or major ion |
Kendall's tau correlation coefficient |
Probability |
|---|---|---|
|
Dissolved solids |
-0.62 |
0.07 |
|
Calcium |
-0.93 |
0.0004 |
|
Magnesium |
-0.57 |
0.062 |
|
Sodium |
-0.46 |
0.144 |
|
Potassium |
-0.43 |
0.178 |
|
Bicarbonate |
0.24 |
0.562 |
|
Chloride |
-0.36 |
0.360 |
|
Sulfate |
-0.79 |
0.0056 |
|
Fluoride |
0.54 |
0.084 |
|
Silica |
-0.14 |
0.72 |
Table 9. Kendall's tau correlation coefficients and resulting probabilities (p-values) between dissolved solids or major ions and well depth, coalbed aquifers
[Bold text indicates a statistically significant correlation with a p-value less than 0.05; NC, not calculated because greater than 50 percent of data values are less than minimum reporting level]
|
Constituent or major ion |
Kendall's tau correlation coefficient |
Probability (p-value) |
|---|---|---|
|
Dissolved solids |
0.179 |
0.393 |
|
Calcium |
0.115 |
0.5822 |
|
Magnesium |
0.217 |
0.297 |
|
Sodium |
0.167 |
0.4228 |
|
Potassium |
0.462 |
0.0256 |
|
Bicarbonate |
0.231 |
0.2721 |
|
Chloride |
-0.256 |
0.2224 |
|
Sulfate |
NC |
NC |
|
Fluoride |
-0.026 |
0.902 |
|
Silica |
0.308 |
0.1301 |
