Your county health department
Wyoming 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.
Wyoming's private well pageLead in Wyoming well water, by county
Lead is rare in tested Wyoming wells: in all 15 counties with enough tests, fewer than 5% of tested wells were over the limit. 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.
These tests sample the groundwater, and lead rarely comes from the ground. In a home it mostly comes from plumbing: old solder, brass fittings and some older pumps. So a county's share can't tell you about your pipes. Test a first-draw sample, water that sat in the pipes overnight, from the tap you drink from.
How Wyoming compares with the rest of the country
Across Wyoming, 1 of 426 tested wells had lead over the EPA action level of 15 µg/L (1 of 426). Across all tested wells in the US it's under 1 in 50. That's less often than in the country as a whole. Counties still differ, so check yours below.
Why it matters: It harms children's growing brains. The CDC says no amount in a child's blood is known to be safe.
Lead in tested wells, county by county
Share of each county's tested wells with at least one result over the EPA action level of 15 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 |
|---|---|---|---|
| Converse County | 23 | Rare | |
| Carbon County | 60 | Rare | |
| Sweetwater County | 38 | Rare | |
| Laramie County | 34 | Rare | |
| Sheridan County | 34 | Rare | |
| Platte County | 28 | Rare | |
| Campbell County | 26 | Rare | |
| Sublette County | 26 | Rare | |
| Albany County | 25 | Rare | |
| Goshen County | 25 | Rare | |
| Niobrara County | 24 | Rare | |
| Crook County | 17 | Rare | |
| Park County | 14 | Rare | |
| Teton County | 10 | Rare | |
| Washakie County | 10 | Rare |
5 more Wyoming counties have 1 to 9 tested wells for lead, too few to rate.
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Where to get your well tested for lead in Wyoming
A lab Wyoming certifies
Ask for lead by name. Results from a certified lab count for a home sale or a loan.
Labs certified by WyomingA mail-in kit
Fill the bottles at your kitchen tap and mail them back. We mark the kits that include lead.
Compare kitsKeep reading about wells in Wyoming
- Well water testing in Wyoming: how to get tested and what turns up statewide
- Lead in well water: where it comes from, what it does and how to remove it
- Nitrate in Wyoming wells, by county
- Arsenic in Wyoming wells, by county
- Uranium in Wyoming wells, by county
- Manganese in Wyoming wells, by county
- Radon in Wyoming wells, by county
Questions people ask about lead in Wyoming
Is there lead in Wyoming well water?
Lead is rare in tested Wyoming wells: in all 15 counties with enough tests, fewer than 5% of tested wells were over the limit. Across Wyoming, 1 of 426 tested wells had lead over the EPA action level of 15 µg/L (1 of 426). Across all tested wells in the US it's under 1 in 50. That's less often than in the country as a whole. Counties still differ, so check yours below.
Where can I get my well tested for lead in Wyoming?
Use a lab certified by Wyoming for drinking water, or a mail-in kit that includes lead from a certified lab. Some county health departments test wells too, so call yours first.
See Wyoming'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 action level of 15 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: Department of Environmental Quality (DEQ), Know Your Well program.