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Source & Drinking Water Program

Radionuclide Contamination


There are two sources of radioactive contamination in drinking water. The first is naturally occurring radionuclides contained in the soil that water moves through. Some areas in Florida are susceptible to contamination from phosphate-rich soils and rock.

The second source of radioactive contamination comes from man-made sources. There is no known man-made contamination of drinking water in Florida.

Inorganic Contaminants

There are many sources of inorganic contamination. Some of it is man-made and some of it occurs naturally. Following is a brief description of the inorganic contaminates regulated in Florida.

Note: Listed in the MCL column is the Maximum Contaminant Level (MCL) or standard for that contaminant.


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