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Online tools, GIS, data

2014 Water quality
status and trends report summary table

Upper Floridan Aquifer Wells

Note: See Report page for definitions.

Trend results by analyte
(expressed as the percent of sites)

Analyte

Decreasing

Increasing

Insufficient Data

Stable

No Data

Ca Mg hardness
(calculated mg/L as CaCO3)

5.1

6.2

33.8

54.9

0.0

pH
(standard units)

1.8

5.8

32.4

57.8

2.2

specific conductance field
(uhmhos/cm at 25° C)

5.1

11.6

34.2

46.9

2.2

total alkalinity
(mg/L as CaCO3)

1.5

7.3

33.8

54.9

2.5

total calcium
(mg/L as Ca)

5.8

6.2

33.8

54.2

0.0

total chloride
(mg/L)

8.0

13.1

34.5

43.6

0.7

total dissolved solids
(mg/L dried at 180° C)

9.5

5.1

34.5

50.9

0.0

total magnesium
(mg/L as Mg)

7.6

10.5

33.8

48.0

0.0

total potassium
(mg/L as K)

7.3

6.5

33.8

52.4

0.0

total sodium
(mg/L as Na)

8.0

10.5

33.8

47.6

0.0

total sulfate
(mg/L as SO4)

12.0

3.3

34.5

49.8

0.4

water temperature
(°C)

9.8

18.5

33.5

37.5

0.7

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St. Johns River Water Management District
4049 Reid Street, Palatka, FL 32177
(800) 725-5922