Iron County · Utah · EPA SDWIS 2026Q2
Cedar City Water Quality
Is Cedar City tap water safe to drink?
Cedar City's public water is regulated to meet EPA legal limits. The EPA SDWIS record shows 15 contaminants on file, led by Radium (combined -226 & -228). Local water is very hard. But meeting legal limits isn't the same as zero-risk. Our Water Score rates it 35/100. See the breakdown below, or pull a free water report to learn what's actually coming out of your tap.
What's really in Cedar City's water
Radium (combined -226 & -228)
Violation on record
19 EPA records on file (most recent 2025). 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.
Radium-226
Violation on record
2 EPA records on file (most recent 2025). Radium-226 is a naturally radioactive isotope that seeps from rock into groundwater. Over years of exposure it concentrates in bone and raises the risk of bone and other cancers. It is regulated together with radium-228 under the combined radium standard.
Nitrate
Detected
Detected below the federal limit. 10 EPA records on file (most recent 2025).
Water hardness
very hard
Cedar City's water is very hard. Hardness isn't a health risk, but it drives scale on fixtures and water heaters, shortens appliance life, and leaves skin and hair dry.
Monitoring & reporting notes
EPA records below are administrative or monitoring/reporting compliance items — not measured exceedances of the legal limit. They do not, on their own, mean the water is unsafe.
Gross Beta / Photon Emitters
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 14 EPA records on file (most recent 2024).
PFOA
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 10 EPA records on file (most recent 2023).
Atrazine
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 10 EPA records on file (most recent 2023).
Haloacetic Acids (HAA5)
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 3 EPA records on file (most recent 2025).
Total Trihalomethanes (TTHM)
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 3 EPA records on file (most recent 2025).
Cadmium
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 1 EPA record on file (most recent 2023).
Fluoride
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 1 EPA record on file (most recent 2023).
Arsenic
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 1 EPA record on file (most recent 2023).
Mercury
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 1 EPA record on file (most recent 2023).
Barium
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 1 EPA record on file (most recent 2023).
Selenium
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 1 EPA record on file (most recent 2023).
Uranium
Monitoring / reporting note
Monitoring / reporting compliance note — not a measured exceedance. 1 EPA record on file (most recent 2023).
EPA violations may be administrative or monitoring/reporting issues rather than measured exceedances of a health limit. A utility appearing on this list does not by itself mean the water is unsafe to drink. Health-based goals (EPA MCLG / WHO) are health targets and are often stricter than the legal limit (the federal MCL). The only way to know what is in your specific home is to test your own water.
Your water provider
CEDAR CITY WATERWORKS
- Population served
- 39,670
- PWSID
- UTAH11002
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