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Table 5. Summary of water-quality data for ground-water samples collected from wells completed in the Wasatch aquifer

[MRL, minimum reporting level; °C, degrees Celsius; NA, not applicable; µS/cm, microsiemens per centimeter; mg/L, milligrams per liter; CaCO3, calcium carbonate]

Characteristic or constituent

Number of detections/number of samples

Highest MRL

Minimum

50th percentile (Median)

Maximum

Physical characteristics

Water temperature, field measurement (°C)

8/8

NA

14

18

20

pH, field measurement (standard units)

8/8

0.1

7.2

7.8

8.9

General mineral characteristics

Acid-neutralizing capacity (ANC), laboratory (mg/L as CaCO3)

7/7

1.0

129

378

1,020

Specific conductance, field measurement

(µS/cm at 25°C)

8/8

1.0

438

1,382

4,330

Dissolved solids, calculated sum (mg/L)

7/7

NA

263

1,010

4,020

Hardness, total (mg/L as CaCO3)

8/8

NA

22

97.5

2,500

Sodium-adsorption ratio (SAR)

8/8

NA

2

9

13

Major ions, in milligrams per liter, dissolved (sample filtered through 0.45-micrometer disposable cartridge filter)

Calcium

8/8

0.02

6.2

15.5

550

Magnesium

8/8

0.01

1.5

15.4

280

Sodium

8/8

0.09

97

225

480

Potassium

8/8

0.24

2.2

9.4

18

Bicarbonate, calculated from ANC1

7/7

NA

157

461

1,244

Chloride

7/8

0.3

5

9.6

18

Sulfate

8/8

0.3

10

130

2,700

Fluoride

7/8

0.1

0.3

0.85

1.5

Silica

8/8

0.1

8

10

17

1Equivalent bicarbonate concentrations calculated from acid-neutralizing capacity (ANC) concentrations by dividing ANC concentrations (expressed as milligrams per liter of calcium carbonate) by 0.8202 (Hem, 1985, p. 57).


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