Recommended for targeted testing of radium-226 in drinking water. Reported results will include detailed analysis of radium-226. Certified lab testing Fast turnaround at lab (12 business days) Standard shipping included Expert treatment advice This testing package is particularly recommended for private well owners who have known radium-related issues or high alpha radiation results already (as radium-226 emits alpha particles). A radioactive isotope of radium, radium-226 is a known human carcinogen with a particular impact on internal organs and the stomach. It cannot be seen, smelled, or tasted in drinking water. The U.S. Environmental Protection Agency (EPA) enforces a maximum contaminant level (MCL) of 5 pCi/L for radium-226 and radium-228 combined. This mail-to-lab water test package provides all required materials to properly collect and submit a sample for certified laboratory testing.