Utah Well Water
Last reviewed October 29, 2026
Overview
Private wells supply water to many Utah households. Because they are generally not regulated like public systems under the federal Safe Drinking Water Act, testing and wellhead protection are the owner’s responsibility.
Hydrogeology & what it means
Utah pumps from basin-fill alluvial aquifers. The documented regional concerns below indicate what is worth testing for — not what any individual well contains.
Documented regional concerns
- Naturally occurring arsenic in parts of the state — odorless and tasteless, so only testing reveals it.
- High total dissolved solids/salinity in some aquifers.
- Nitrate from agricultural and septic influence, especially in farmed areas.
- Radon in water where granitic or uranium-bearing bedrock is present.
- Hard water from carbonate (limestone/dolomite) aquifers.
These are documented possibilities, not a reading of your well
Frequently asked questions
What should well owners in Utah test for?
A practical panel for Utah private wells includes Total coliform bacteria, Nitrate (as N), pH, Arsenic, Total dissolved solids, Radon, Total hardness. Test bacteria and nitrate at least annually and use a state-certified laboratory; confirm local recommendations with your state health department and Utah State University Cooperative Extension.
Are private wells regulated in Utah?
Private wells are generally not covered by the federal Safe Drinking Water Act, though Utah or local rules may apply to construction, permitting, or testing. Public-system limits such as EPA MCLs are useful reference points, not automatic legal limits for your well.