
For cat parents · PFAS check
Check your state for PFAS before you fill their bowl
Here's what national testing found. Checking your state takes 30 seconds.
- At least 45% of US tap water has one or more PFAS (USGS, 2023).
- The EPA tested about 10,000 public water systems for 29 PFAS.
- Testing ran 2023 to 2025. Final results came out in 2026.
- You can't see, taste or smell PFAS in water.
4 quick questions. No email needed.

Which state do you live in?
We'll pull your state's results from the EPA's national testing.

Do you live in a city or out in the country?

Where does your tap water come from?

How does your cat get water now?

Checking EPA results for {state}…

Your {state} result
Here's what EPA testing found in {state}
0%
PFAS turned up in {found} of the {tested} water systems the EPA tested in {state}.
{over} of them averaged above the EPA's 4 ppt level for PFOA or PFOS. Those are two of the most studied PFAS.
None of them averaged above the 4 ppt level the EPA set for PFOA or PFOS.
What else to know
- USGS puts the chance of PFAS in city tap water at about 75%.
- USGS puts the chance of PFAS in rural tap water at about 25%. Lower, but not zero.
- The EPA's testing covered public water systems, not private wells. USGS says testing is the only way to know what's in a well.
- The EPA's health goal for PFOA and PFOS in drinking water is zero.
- You can't see, taste or smell PFAS, so clear water tells you nothing.
Source: EPA UCMR 5, final data (testing 2023 to 2025, released 2026). "Turned up" means at least one of 29 PFAS was measured at or above the EPA's reporting level in at least one sample. "Above the 4 ppt level" uses the EPA's own averaging method from its July 2026 Data Summary, for PFOA and PFOS (4 parts per trillion is the limit the EPA set in 2024). The EPA says these results don't show whether a system meets the rules. The systems tested are mostly ones serving 3,300 people or more, plus a sample of smaller ones.

What scientists have found in cats
- Swedish researchers found forever chemicals in every pet cat they tested (2021).
- In a study of 72 US cats, indoor cats carried the most PFAS (2016).
- In a 2026 study from Japan, cats carried more of some forever chemicals than dogs.
- Scientists trace most of it to house dust and food, not water.
What you can change is how much they drink.
- Cats may not drink more until they've lost as much as 8% of their body water.
- Still water in a bowl collects hair, dust and food bits.
- Cats who don't drink enough are more prone to dehydration, UTIs, bladder stones and kidney disease.
Right now, your cat drinks from a bowl that sits still all day.
Right now, your cat drinks from a plastic fountain. Plastic scratches over time, and grime builds up in the scratches. 304 stainless steel doesn't scratch like that.
Right now, your cat drinks from the sink, so they only drink when someone turns it on.
You already give your cat moving water. Keep the bowl clean and the water fresh.
Weiss et al., 2021 (Sweden). Bost et al., 2016 (US, 72 cats). Ehime University, 2026 (30 cats, 23 dogs). IVIS.

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The filter is for taste and debris, like hair and dust. It isn't certified to remove PFAS.
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