Your county health department
Nevada doesn't run a statewide free testing program that we know of. Some county health departments test wells or sell kits, so call yours first.
Nevada's private well pageUranium in Nevada well water, by county
Uranium is widespread, over the limit in 15% or more of tested wells, in 1 of the 10 Nevada counties with 10 or more tested wells. A county's share tells you how likely a problem is nearby. Only a test of your own well tells you what's in it.
How Nevada compares with the rest of the country
Across Nevada, about 1 in 11 tested wells had uranium over the EPA limit of 30 µg/L (40 of 442). Across all tested wells in the US it's about 1 in 22. So uranium turns up in Nevada wells about twice as often as in the country as a whole, and a test is worth adding even if your county isn't on the list below.
Why it matters: Drinking it for years can harm your kidneys and raises the risk of cancer.
Uranium comes out of the rock and sediment the wells draw from.
Uranium in tested wells, county by county
Share of each county's tested wells with at least one result over the EPA limit of 30 µg/L. Counties need 10 or more tested wells to be listed. Widespread means 15% or more, worth checking 5 to 15%, rare under 5%.
| County | Wells tested | Wells over the limit | Level |
|---|---|---|---|
| Carson City | 34 | Widespread | |
| Churchill County | 180 | Worth checking | |
| Mineral County | 20 | Worth checking | |
| Washoe County | 68 | Worth checking | |
| Lyon County | 16 | Worth checking | |
| Clark County | 27 | Rare | |
| White Pine County | 21 | Rare | |
| Douglas County | 16 | Rare | |
| Elko County | 14 | Rare | |
| Nye County | 12 | Rare |
* Likely overstated. These shares come from a narrow set of wells, so they probably run high for the county as a whole:
- Mineral County: All of these tests come from the US Geological Survey, mostly before 2013 in one small part of the county, so this likely overstates it.
7 more Nevada counties have 1 to 9 tested wells for uranium, too few to rate.
Download this table (CSV) · Free to reuse under CC BY 4.0
Where to get your well tested for uranium in Nevada
A lab Nevada certifies
Ask for uranium by name. Results from a certified lab count for a home sale or a loan.
Labs certified by NevadaA mail-in kit
Fill the bottles at your kitchen tap and mail them back. We mark the kits that include uranium.
Compare kitsKeep reading about wells in Nevada
- Well water testing in Nevada: how to get tested and what turns up statewide
- Uranium in well water: where it comes from, what it does and how to remove it
- Nitrate in Nevada wells, by county
- Arsenic in Nevada wells, by county
- Manganese in Nevada wells, by county
- Lead in Nevada wells, by county
Questions people ask about uranium in Nevada
Is there uranium in Nevada well water?
Uranium is widespread, over the limit in 15% or more of tested wells, in 1 of the 10 Nevada counties with 10 or more tested wells. Across Nevada, about 1 in 11 tested wells had uranium over the EPA limit of 30 µg/L (40 of 442). Across all tested wells in the US it's about 1 in 22. So uranium turns up in Nevada wells about twice as often as in the country as a whole, and a test is worth adding even if your county isn't on the list below.
Where can I get my well tested for uranium in Nevada?
Use a lab certified by Nevada for drinking water, or a mail-in kit that includes uranium from a certified lab. Some county health departments test wells too, so call yours first.
See Nevada's list of certified labs, or compare mail-in kits.
Where these numbers come from
- Lab tests: Water Quality Portal (USGS and EPA), well samples since 2000. A well counts as over if any of its tests was over the EPA limit of 30 µg/L. Wells tested for studies and monitoring, not a random sample of homes.
- Likely overstated: our own check of who tested the wells, when and where. How we check.
- State programs and links: Division of Environmental Protection.