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Radium Testing Results in Public Water

Radium is a naturally occurring radioactive metal that can exist in several forms. Radium is present at very low levels in rocks and soil and may strongly attach to those materials. Everyone is exposed to low levels of radium in the air, water, and food. EPA has set a drinking water limit of 5 picocuries per liter (5pCi/L) for radium-226 and radium-228 combined.

Read more about Radium in Public Water and Health

Measure Description:

  • Public Water Systems - Avg is the number of community water systems that have an annual average concentration of a contaminant in the listed concentration range.
  • Population Served - Avg is the population served by community water systems that have an annual average concentration of a contaminant in the listed concentration range.
  • Public Water Systems - Max is the number of community water systems that have an annual maximum concentration of a contaminant in the listed concentration range.
  • Population Served - Max is the population served by community water systems that have an annual maximum concentration of a contaminant in the listed concentration range.
  • Average Concentration by Public Water System is the average concentration of a contaminant.

Use the tabs to see the different data visualizations.

Measures are defined above the visualization. Additional help can be found in the Help Section.