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Radionuclide Contaminants Sampling Requirements

What kind of samples are required? 

• Gross Alpha Particle Activity

• Radium-226

• Radium-228

• Uranium

Note:  A Gross Alpha test may be used as a substitute test for Radium 226 if the Gross Alpha result plus the Radium 228 result does not exceed 5 Picocurie per liter (pCi/L).  A Gross Alpha test may also be used as a substitute test for Uranium if the Gross Alpha result does not exceed 15 pCi/L.

Who is required to sample?

• All community water systems must conduct Radionuclide  contaminants sampling in accordance with Chapters 62-550.519 and 62-550.520, F.A.C.

When is Radionuclide sampling required? 

• Generally, all new community water systems must complete 4 consecutive quarters of radionuclide sampling.

  • The Department may reduce this requirement to 2 quarters depending on analytical results.

• After the initial monitoring period, regular monitoring will be required once every 3 years.

  • Depending on analytical results the Department may place a water system on reduced monitoring, in which case the system will have to sample for radionuclides once every 6 or 9 years.

For Additional Assistance:

• U.S. EPA document explaining Radionuclide monitoring. [format .pdf 113 kb]

• Specific Monitoring Requirements

• If you have specific questions regarding Radionuclide Contaminants sampling for your water system...

  • In-House Compliance Contacts

Drinking Water Contacts:   Field Compliance -- In House Compliance -- Permitting

Central District

Drinking Water Section

3319 Maguire Blvd., Suite 232

Orlando, Florida 32803-3767

Compliance Fax: 407-897-4189

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