Mohave County · Arizona · EPA SDWIS 2026Q2
Radium (combined -226 & -228) in Centennial Park water
Radium (combined -226 & -228) measured above the federal limit in Centennial Park's public supply.
Radium (combined -226 & -228)
Violation on record
8 EPA records on file (most recent 2021). Radium is a naturally radioactive element that leaches from rock into groundwater. Long-term exposure increases the risk of bone cancer and other cancers because it concentrates in bone. The federal limit covers the combined activity of radium-226 and radium-228.
EPA records reflect the public water system, not your home's plumbing. Health-based goals (EPA MCLG / WHO) are health targets and are often stricter than the federal legal limit (the MCL). A utility appearing on this list does not by itself mean the water is unsafe to drink. The only way to know what is in your specific home is to test your own water.
The health-based goal vs. the legal limit
The federal legal limit (MCL) is the maximum allowed by law. The health-based goal (EPA MCLG / WHO) is a stricter health target — not itself a legal limit.
Health-based goal (EPA MCLG / WHO)
0.05 pCi/L
Federal legal limit (MCL)
5 pCi/L
Source: EPA MCL / MCLG; WHO guidelines · 2026
What removes Radium (combined -226 & -228)
Advertising disclosure
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Is Radium (combined -226 & -228) in your water?
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