Forever Chemicals
Thinking about relocating to Wyoming and wanting to understand the water first is a sensible instinct. PFAS, the forever chemicals, are hard to picture, so it helps to anchor on something solid: the Wyoming Department of Environmental Quality, the DEQ, oversees public drinking-water systems and the wider environment across the state. The figures below summarize what monitoring across Wyoming's larger systems has shown. None of it amounts to a verdict on any single home; it is simply what the records show, set out so you can read it without alarm. Treat it as context worth reviewing when evaluating an address in the state.
EPA's UCMR 5 program (2021–2024) tested 33 public water systems in Wyoming for 29 PFAS compounds; 0 reported at least one detection and none exceeded the 2024 federal limit of 4 ppt for PFOA/PFOS (a 0% detection rate). Detections vary by water system — check the utility serving a specific Wyoming address.
In Wyoming, the agency to know is the Wyoming Department of Environmental Quality (DEQ), which oversees the state's water and broader environmental programs, including the public drinking-water systems residents rely on. Wyoming is largely among the states that lean on the federal limits the agency administers rather than a separately advertised state PFAS standard, with DEQ carrying the April 2024 federal rule (4 ppt for PFOA and PFOS) into the systems it regulates. In a state where so many households draw their own water, the steadying fact is that there is still a named office watching the public-supply side.
Numbers below come straight from EPA UCMR 5 monitoring (2021–2024). Every public water system in Wyomingserving more than 3,300 people had to test for 29 different PFAS — here's what they reported.
33
Water systems tested
UCMR 5 (2021–2024)
0
Systems with any PFAS detected
0% detection rate
0
Systems exceeding 2024 MCL
Above 4 ppt PFOA/PFOS
0
Distinct PFAS compounds detected
Of 29 monitored under UCMR 5
0
TRI-reporting PFAS facilities
EPA Toxics Release Inventory 2024
0
DoD PFAS installations
Military PFAS contamination sites
Looking at a specific Wyomingcity? Each page below pulls the same federal data narrowed to that water system — useful whether you're relocating, buying, organizing your neighborhood around getting cleaner water, or just trying to find out what's in the tap and what's around you.
Read the figures above as a screening snapshot, not a final score. The monitoring behind them reaches only a defined set of PFAS compounds, tested at public systems serving more than roughly 3,300 people over 2021 to 2024. In a state as rural as Wyoming, the gaps matter especially: private wells and many small rural systems were never required to test, so a quiet entry there is an unknown rather than reassurance, and DEQ can point well owners toward testing guidance. A result logged in 2022 is also a moment in time, not necessarily today's tap. With a single DEQ covering so much ground, at least the acronym soup here is thinner than in many states.
For veterans and military families, the chemical worth understanding is firefighting foam, AFFF, sprayed for years at installations to knock down fuel fires. The PFAS in it can seep into groundwater and linger long after the foam is gone. Where installations are listed above, that marks where the public record has noted a connection worth understanding, not a verdict on your household or your service. The grounded next step is the address-level report, which speaks to a particular property rather than the state as a whole.
Yes. EPA UCMR 5 monitoring (2021–2024) tested 33 public water systems in Wyoming; 0 had at least one PFAS detection. Detections vary by water system — check your specific serving utility.
Wyoming largely relies on the federal PFAS drinking-water limits, which the Wyoming Department of Environmental Quality administers for public systems. The April 2024 EPA rule sets enforceable limits of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA, and GenX, and those are the figures Wyoming systems work toward rather than a separately advertised state number.
The Wyoming Department of Environmental Quality (DEQ) oversees PFAS across drinking water and the broader environment. It tends to administer the federal framework, carrying the April 2024 limits into the public systems it regulates rather than setting a separate state standard.
The Wyoming Department of Environmental Quality, or DEQ, is the state's primary environmental agency, covering water, air, and land programs along with public drinking-water oversight. For PFAS questions in Wyoming, DEQ is generally the office involved.
Use VetMyAddress to see the PFAS detections reported for the public water system serving any Wyoming address, alongside nearby military bases and industrial PFAS sources. The data comes from EPA UCMR 5, EPA TRI, and the DoD PFAS installation report.
In April 2024 the EPA set the first enforceable federal limits for PFAS in drinking water: 4 parts per trillion for PFOA and PFOS, and 10 ppt each for PFHxS, PFNA, and HFPO-DA (GenX), plus a Hazard Index for certain mixtures. Public water systems must complete initial monitoring by 2027 and come into compliance after that.
No. The federal limits apply to public water systems. Private well owners are responsible for their own testing and treatment, which is especially worth doing near a known PFAS source like a military base or industrial site.
State numbers tell you the pattern. An address report tells you what's actually in the water at yourkitchen sink — the matched utility, the PFAS detections on file, and every military or industrial source nearby. Whether it's for your family, your neighbors, or peace of mind.
Data sources: EPA UCMR 5 bulk data · EPA TRI 2024 · DoD PFAS installation report