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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
26–50 of 883Jericho Wd
NY2902831 · 58,000 served
Veolia Water New York, Inc. Rd-2
NY5903456 · 57,301 served
Hempstead (v)
NY2902827 · 56,000 served
Elmira Water Board
NY0701008 · 54,000 served
Kiryas Joel
NY3503627 · 51,623 served
Troy City Pws
NY4100050 · 51,401 served
Niagara Falls Water Board
NY3100568 · 50,193 served
Hicksville Wd
NY2902829 · 48,000 served
City of Binghamton
NY0301651 · 47,600 served
Jamestown Bpu
NY0600366 · 46,712 served
Endicott Municipal Water Works
NY0301665 · 45,000 served
Freeport (v)
NY2902823 · 45,000 served
South Farmingdale Wd
NY2902854 · 44,700 served
Poughkeepsie Townwide Wd
NY1302812 · 43,000 served
Massapequa Wd
NY2902837 · 43,000 served
Manhasset Lakeville Wd
NY2902836 · 43,000 served
Greenlawn Water District
NY5103271 · 42,000 served
Greenburgh Consolidated Wd #1
NY5903429 · 39,993 served
Yorktown Consold. Water Dist.#1
NY5903469 · 36,000 served
Clifton Park Water Authority
NY4500175 · 35,000 served
Riverhead Water District
NY5103705 · 35,000 served
Long Beach City
NY2902834 · 35,000 served
Dix Hills Water District
NY5103276 · 34,522 served
Plainview Wd
NY2902845 · 34,000 served
Port Washington Wd
NY2912267 · 34,000 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.
New York Water FAQs
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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