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New York Water Quality
883
Utilities in database
18.3M
Residents served
25%
On private wells
3
Key contaminants tracked
Drinking Water in New York
New York has 883 community water systems serving approximately 18.3 million residents. Primary water sources include surface water. The most commonly reported contaminants include disinfection byproducts, lead, nitrates. 25% of New York residents rely on private wells. NYSDOH holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in New York
201–225 of 883Leray Town Wd 1, 2, 4
NY2221206 · 7,140 served
Canton Village
NY4404381 · 7,055 served
Brunswick Consolidated Water District
NY4110144 · 7,050 served
Walden Village
NY3503559 · 7,007 served
Waterloo Village
NY4901199 · 7,000 served
Hudson Falls Village (queensbury)
NY5700123 · 7,000 served
Hyde Park Regional
NY1302796 · 6,928 served
Porter Master Improvement Area
NY3100577 · 6,920 served
Warwick Village
NY3503561 · 6,800 served
Hudson City
NY1000239 · 6,750 served
Bayville (v)
NY2902816 · 6,700 served
Irvington Water Supply
NY5903432 · 6,631 served
East Aurora Village
NY1400433 · 6,610 served
Canandaigua Town Cons. Wd
NY3430008 · 6,607 served
Moreau Wd #2 (queensbury)
NY4500177 · 6,600 served
Williamson Town Wd
NY5801258 · 6,600 served
Ballston Spa Village
NY4500162 · 6,541 served
Medina Village
NY3600600 · 6,500 served
Larchmont Village
NY5903433 · 6,485 served
Marion-arcadia-sodus Csa
NY5801231 · 6,303 served
Pendleton Town Wd
NY3100574 · 6,050 served
Westchester County Wd #3
NY5903482 · 6,000 served
Rhinebeck Village Water
NY1302776 · 6,000 served
Albion Village
NY3600596 · 6,000 served
Wilson Town Water District
NY3100587 · 5,993 served
Key Contaminant Concerns in New York
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing.
Nitrates
Nitrate (NO₃⁻) is a nitrogen-containing compound that forms naturally through the decomposition of organic matter. At elevated concentrations — almost always from human activity — nitrate interferes with the blood's ability to carry oxygen. The United States produces over 23 million tons of nitrogen fertilizer annually, making agricultural runoff the dominant source of nitrate contamination.
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
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Data source: Utility data from EPA SDWIS. 883 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-17