Tap Water Results

New York tap water quality

2,253 community water systems serving 18.3 million people.

Data: U.S. EPA · How we read the data · How we check it

31
systems with PFAS above a federal limit
1.9 million
people served by them
322
systems EPA tested for PFAS
16
systems above the lead action level

PFAS: EPA's 2023–2025 testing. Lead: results from the last five years. 168 more systems have no recent lead results in EPA's database.

Water systems with PFAS above the federal limit

Based on EPA's UCMR 5 results (2023–2025) compared to the April 2024 limits, the way EPA compares them. Systems have until 2029 to comply. Largest first.

And 1 more in the full list of New York utilities below.

New York PFAS report: chart, rankings and data to download →

New York's own PFAS limits

New York enforces its own drinking water limits for PFAS (effective: 2020): PFOA 10 ppt, PFOS 10 ppt. The federal limits are 4 ppt for PFOA and PFOS.

State MCLs set in 2020. NYSDOH says systems must meet them until federal 4 ppt MCLs apply in 2029.

Source: NYSDOH: Public Water Systems and Drinking Water Standards for PFAS and Other Emerging Contaminants, checked 2026-11-14. Utility pages compare each system's EPA results with these limits. State compliance is judged on the state's own sampling.

Largest water systems in New York

New York cities and towns

Most health-based violations since 2016

All New York utilities on this site

Every New York system serving 50,000+ people or with PFAS above a federal limit, A to Z. Download all 2,253 systems as CSV.

Questions

Does New York tap water have PFAS?

EPA tested 322 community water systems in New York for 29 PFAS between 2023 and 2025. 54 had at least one regulated PFAS detected, and 31 had an entry-point average above a 2024 federal limit. Those 31 systems serve about 1.9 million people (10% of people on community water in New York). Systems have until 2029 to meet the limits.

How many New York water systems have violations?

343 systems in New York had at least one health-based violation since 2016 (1,223 violations in total). 482 violations are currently listed as unaddressed.

Which New York water systems are over the lead action level?

16 systems had a lead 90th percentile above the 15 ppb action level in their most recent results from the last five years. Another 168 systems have no lead results in EPA's database from the last five years, including 6 whose last result was above the action level. Lead depends on each home's pipes, so a test of your own tap is the only way to know your level.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.