Apr 15, 2026 · 7 min read
PFAS "Forever Chemicals" in US Drinking Water: 2026 Update
PFAS contamination affects an estimated 200 million Americans. Here's what the latest EPA enforcement means for your tap water.
Official EPA Data · Updated Monthly
Know What's in Your
Tap Water
Free access to EPA drinking water quality data for every US city. Check contaminants, violations, and safety grades by city, state, or ZIP code.
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51
States & DC
19,700+
Cities
15
Contaminants
Free
Forever
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Official EPA Data
Directly from EPA SDWIS — the same database regulators use.
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Real-Time Updates
Water quality data refreshed monthly. See the latest violations immediately.
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Hyperlocal Detail
City and ZIP-level information — not just statewide averages.
⚠️ Most Concerning
Cities with the Most EPA Violations
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Alabama361 citiesAlaska189 citiesArizona177 citiesArkansas403 citiesCalifornia894 citiesColorado331 citiesConnecticut159 citiesDelaware48 citiesFlorida482 citiesGeorgia511 citiesHawaii35 citiesIdaho233 citiesIllinois1,075 citiesIndiana450 citiesIowa609 citiesKansas554 citiesKentucky251 citiesLouisiana338 citiesMaine208 citiesMaryland169 citiesMassachusetts350 citiesMichigan636 citiesMinnesota736 citiesMississippi363 citiesMissouri696 citiesMontana236 citiesNebraska452 citiesNevada68 citiesNew Hampshire206 citiesNew Jersey320 citiesNew Mexico245 citiesNew York883 citiesNorth Carolina480 citiesNorth Dakota230 citiesOhio624 citiesOklahoma503 citiesOregon300 citiesPennsylvania823 citiesRhode Island47 citiesSouth Carolina214 citiesSouth Dakota223 citiesTennessee288 citiesTexas1,277 citiesUtah258 citiesVermont199 citiesVirginia322 citiesWashington359 citiesWashington DC1 citiesWest Virginia211 citiesWisconsin593 citiesWyoming121 cities
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Concerned About Your Water?
Start by checking your city's water quality data. It only takes a few seconds.
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