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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
576–600 of 883Old Forge-thendara Water District
NY2102312 · 1,275 served
Watchtower Bible Tract Society
NY3921721 · 1,251 served
Nassau (v) Pws
NY4100042 · 1,250 served
Star Lake Water District
NY4404398 · 1,250 served
Naples Consolidated
NY3401161 · 1,250 served
Dannemora Village
NY0900213 · 1,228 served
Reagans Mill Water Company
NY1321478 · 1,225 served
North Castle Water District #4
NY5922909 · 1,225 served
Barre Town Wds
NY3630002 · 1,220 served
Wilson Village
NY3100586 · 1,213 served
Mahopac Water Co
NY3905707 · 1,202 served
North Castle Water District #2
NY5903446 · 1,200 served
Richfield Springs Village
NY3800156 · 1,200 served
Wallkill/shawangunk Correction
NY5510590 · 1,200 served
Brownville Village
NY2202332 · 1,200 served
Beekman Country Club
NY1302787 · 1,200 served
Shelby Town Wds
NY3600602 · 1,200 served
Little Valley Village
NY0400343 · 1,188 served
Cattaraugus Village
NY0400335 · 1,185 served
Hancock Village
NY1200266 · 1,182 served
Northville (v) Water Wks.
NY1700023 · 1,180 served
Manchester Water District
NY1330550 · 1,180 served
Staatsburg Water System
NY1302777 · 1,164 served
Vernon Village
NY3202412 · 1,155 served
East Corning Consolidated District
NY5001213 · 1,150 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