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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
101–125 of 883Kensico Water District
NY5930082 · 17,917 served
New Castle/stanwood W.d.
NY5903442 · 17,116 served
Roslyn Wd
NY2902851 · 17,000 served
Cohoes City
NY0100192 · 16,883 served
Massena Village
NY4404390 · 16,729 served
Fulton City
NY3704355 · 16,600 served
Johnson City Water Works
NY0301668 · 16,578 served
Mcwa Genesee
NY1800547 · 16,541 served
Lewiston Water Improvementarea
NY3100561 · 16,257 served
Dewitt Wds - South
NY3304343 · 16,200 served
Clay Wds
NY3304344 · 16,000 served
Oneonta City
NY3800154 · 15,954 served
East Greenbush General W.d.
NY4100051 · 15,843 served
Batavia City
NY1800544 · 15,475 served
Kenmore Village
NY1410142 · 15,423 served
Horseheads Village
NY0701009 · 15,000 served
Halfmoon Water District (troy)
NY4519111 · 15,000 served
Glenville Wd #11
NY4600091 · 15,000 served
Nyack Village Water Supply
NY4303666 · 14,700 served
Olean City
NY0400345 · 14,500 served
Beacon City
NY1302760 · 14,370 served
United Wappinger Water Improvement Dist.
NY1330660 · 14,000 served
Glens Falls City
NY5600104 · 14,000 served
Dewitt Wds - North
NY3316112 · 13,600 served
Albertson Wd
NY2902815 · 13,500 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