The Power of Information

National Drinking Water Database

New York

2,317 systems serving 17,300,092 people

This drinking water quality report shows results of tests conducted by water utilities in New York, provided to the Environmental Working Group (EWG) by the New York Department of Health- Bureau of Public Water Supply Protection. It is part of EWG's national database that includes 47,667 drinking water utilities and 20 million test results from 45 states and the District of Columbia. Water utilities nationwide detected more than 300 pollutants between 2004 and 2009. More than half of these chemicals are unregulated, legal in any amount. Despite this widespread contamination, the federal government invests few resources in protecting rivers, reservoirs, and groundwater from pollution in the first place. The information below summarizes drinking water quality for this state.

Water Utilities
Population Served
Detected Chemicals
Exceed health guidelines*
Exceed Legal Limits*
Unregulated chemicals detected
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

85 Contaminants Exceeding Health Based Limits

Contaminants detected in New York drinking water above health guidelines, according to an Environmental Working Group analysis of data obtained from state water authorities

Number of Systems
At Any Level Above Health Limits At Any Level Above Health Limits
Total haloacetic acids (HAAs)15,499,66415,437,8031,3161,301
Total trihalomethanes (TTHMs)16,579,30215,207,0471,8251,052
Dichloroacetic acid14,219,19714,219,1971,1541,154
Trichloroacetic acid13,913,52910,318,5001,002273
Lead (total)9,395,2349,395,234229229

Water Utilities in New York Reporting Chemicals Exceeding Health Guidelines

Water utilities in New York reporting chemicals exceeding health guidelines, according to an Environmental Working Group analysis of data obtained from state water authorities, include:

Chemicals tested
Chemicals found
Chemicals exceeding
health guidelines
Mcwa, Genesee West80014011634
Wild Oaks Water Company8051257323
Hicksville Wd47,8101403121
WA of Western Nassau120,0001383720
United Water New York225,0001393818
Carmel WD 81,6001392317
Plainview Wd35,0001372317
WA of Great Neck North31,4001403417
Town of Hempstead Wd110,0001383117
Penn Yan Village5,2481292316
Bedford Hills/Taconic Corr. Facilities1,100746016
Ovid Village7791242616
Sharon Springs Village5471382016
Saratoga Springs City25,6751862316
Cornwall Meadows Townhomes W.S.230892216
Plaza AT Clover Lake1201342216
Saint Basils Academy130922516
Wallkill Consolidated Wd13,6401252316
Goshen Village5,6761242416
Long Island American Water Corp230,3001512916

Sources of New York Drinking Water Contaminants

The contaminants identified in New York drinking water come from a wide variety of sources, including agriculture, industry, water treatment plants, and polluted storm runoff from urban areas.

181Total Contaminants Detected (2004 - 2009)
53Agricultural Pollutants
(pesticides, fertilizer, factory farms)

Nitrate, Nitrate & nitrite, Arsenic (total), Selenium (total), Nitrite, Perchlorate, 1,2-Dibromo-3-chloropropane (DBCP), Atrazine, Ethylbenzene, Dalapon, Cyanide, Simazine, Chlorate, Ethylene dibromide (EDB), 1,2-Dichloropropane, Dacthal, Metolachlor, p-Dichlorobenzene, DCPA di acid degradate, Phosphorus, 2,4-D, Bromomethane, Heptachlor epoxide, Monochlorobenzene (Chlorobenzene), o-Dichlorobenzene, Chlordane, Alachlor (Lasso), Lindane, Picloram, Dieldrin, Dinoseb, Dicamba, Toxaphene, Oxamyl (Vydate), 2,4,5-TP (Silvex), Methoxychlor, 3-Hydroxycarbofuran, Endrin, Aldicarb sulfoxide, Heptachlor, Carbofuran, Methomyl, m-Dichlorobenzene, Aldicarb, Carbaryl, Metribuzin, Aldicarb sulfone, Aldrin, Propachlor, DCPA mono acid degradate, Butachlor, Mirex, beta-Lindane

50Sprawl and Urban Pollutants
(road runoff, lawn pesticides, human waste)

Nitrate, Copper, Nitrate & nitrite, Lead (total), Arsenic (total), Tetrachloroethylene, MTBE, Nitrite, Xylenes (total), Dalapon, Cadmium (total), Antimony (total), Mercury (total inorganic), m- & p- Xylene, Dichloromethane (methylene chloride), Cyanide, o-Xylene, Benzene, Acetone, Molybdenum, Silver (total), Trichlorofluoromethane, Dacthal, p-Dichlorobenzene, DCPA di acid degradate, Methyl ethyl ketone, Di(2-Ethylhexyl) adipate, Phosphorus, Lithium, Hydrogen sulfide, 2,4-D, Naphthalene, p-Xylene, m-Xylene, Chlordane, Benzo[a]pyrene, Trichlorotrifluoroethane, Lindane, bis(2-ethylhexyl) phthalate, n-Propylbenzene, 2,4,5-TP (Silvex), Tin (total), Bromobenzene, Carbaryl, tert-Butylbenzene, sec-Butylbenzene, DCPA mono acid degradate, Dichlorobenzenes (total), Strontium-89, beta-Lindane

122Industrial Pollutants

Nitrate, Nitrate & nitrite, Barium (total), Lead (total), Arsenic (total), Manganese, Radium-228, Radium-226, Alpha particle activity, Alpha particle activity (excl radon and uranium), Combined Radium (-226 & -228), Gross beta particle activity (pCi/L), Combined Uranium (pCi/L), Tetrachloroethylene, Trichloroethylene, Chromium (total), Alpha particle activity (incl. radon & uranium), Combined Uranium (mg/L), Aluminum, Selenium (total), MTBE, Nitrite, Perchlorate, Xylenes (total), cis-1,2-Dichloroethylene, Chlorite, 1,1-Dichloroethylene, Di(2-ethylhexyl) phthalate, Bromide, 1,2,3-Trichloropropane, Carbon tetrachloride, Ethylbenzene, Toluene, 1,1,1-Trichloroethane, Cadmium (total), Dichlorodifluoromethane, Antimony (total), Mercury (total inorganic), 1,1-Dichloroethane, m- & p- Xylene, Chloromethane, Dichloromethane (methylene chloride), Cyanide, o-Xylene, Beryllium (total), Thallium (total), 1,2-Dichloroethane, Uranium-238, Benzene, Uranium-234, Acetone, Molybdenum, Chlorate, Ethylene dibromide (EDB), 1,2-Dichloropropane, Silver (total), Tritium, Trichlorofluoromethane, Strontium, Vinyl chloride, p-Dichlorobenzene, Methyl ethyl ketone, Di(2-Ethylhexyl) adipate, trans-1,2-Dichloroethylene, Asbestos, Phosphorus, Hexachlorocyclopentadiene, Lithium, Hydrogen sulfide, Styrene, Naphthalene, p-Xylene, Monochlorobenzene (Chlorobenzene), 1,2,4-Trimethylbenzene, Pentachlorophenol, m-Xylene, Dibromomethane, Bromochloromethane, 1,1,2-Trichloroethane, Trichlorotrifluoroethane, Chloroethane, Lindane, 1,2,4-Trichlorobenzene, Isopropylbenzene, bis(2-ethylhexyl) phthalate, 1,3,5-Trimethylbenzene, Alpha, Dissolved, n-Propylbenzene, Gross beta particle activity (dissolved), 1,2,3-Trichlorobenzene, Hexachlorobenzene (HCB), o-Chlorotoluene, Tin (total), p-Isopropyltoluene, 1,1,1,2-Tetrachloroethane, Bromobenzene, n-Butylbenzene, m-Dichlorobenzene, tert-Butylbenzene, Hexachlorobutadiene, Isophorone, sec-Butylbenzene, 2,2-Dichloropropane, Total polychlorinated biphenyls (PCBs), 1,1,2,2-Tetrachloroethane, p-Chlorotoluene, cis-1,3-Dichloropropene, 1,3-Dichloropropane, 1,1-Dichloropropene, trans-1,3-Dichloropropene, Titanium, Aroclor 1242, Aroclor 1254, Aroclor 1221, Chlorodifluoromethane, Potassium-40 (total), Dichlorobenzenes (total), Gross beta particle activity (suspended), Cesium-134, Methane, Alpha particle activity (suspended), PCB 1262

27Water Treatment and Distribution Byproducts
(pipes and fixtures, treatment chemicals and byproducts)

Total trihalomethanes (TTHMs), Total haloacetic acids (HAAs), Chloroform, Bromodichloromethane, Dibromochloromethane, Dichloroacetic acid, Trichloroacetic acid, Bromoform, Dibromoacetic acid, Monochloroacetic acid, Bromochloroacetic acid, Monobromoacetic acid, Chlorite, Di(2-ethylhexyl) phthalate, Bromodichloroacetic acid, Cadmium (total), Chloromethane, Chlorate, Vinyl chloride, Asbestos, Dibromomethane, Bromochloromethane, Benzo[a]pyrene, Chloroethane, Chlorodibromoacetic acid, m-Dichlorobenzene, Tribromoacetic acid

40Naturally Occurring
(naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)

Nitrate, Copper, Nitrate & nitrite, Barium (total), Lead (total), Arsenic (total), Manganese, Radium-228, Radium-226, Alpha particle activity, Alpha particle activity (excl radon and uranium), Combined Radium (-226 & -228), Gross beta particle activity (pCi/L), Combined Uranium (pCi/L), Chromium (total), Alpha particle activity (incl. radon & uranium), Combined Uranium (mg/L), Aluminum, Selenium (total), Nitrite, Radon, Bromide, Mercury (total inorganic), Chloromethane, Cyanide, Uranium-238, Uranium-234, Silver (total), Phosphorus, Lithium, Hydrogen sulfide, Alpha, Dissolved, Gross beta particle activity (dissolved), Tin (total), Titanium, Potassium-40 (total), Gross beta particle activity (suspended), Cesium-134, Alpha particle activity (suspended), Manganese, Dissolved

83Unregulated Contaminants
EPA has not established a maximum legal limit in tapwater for these contaminants

Bromide, Chlorate, Hydrogen sulfide, Lead (total), Manganese, Dissolved, Strontium, Lithium, Molybdenum, Tin (total), Titanium, Phosphorus, Carbaryl, Methomyl, p-Isopropyltoluene, Aldicarb sulfoxide, Aldicarb sulfone, Metolachlor, Aldicarb, 3-Hydroxycarbofuran, Dieldrin, Butachlor, Propachlor, Dacthal, DCPA mono acid degradate, DCPA di acid degradate, Chloromethane, Dichlorodifluoromethane, Bromomethane, Chloroethane, Trichlorofluoromethane, trans-1,3-Dichloropropene, cis-1,3-Dichloropropene, Acetone, Hexachlorobutadiene, Methyl ethyl ketone, Naphthalene, MTBE, Isophorone, bis(2-ethylhexyl) phthalate, beta-Lindane, Aldrin, PCB 1262, Dichlorobenzenes (total), Dibromomethane, 1,1-Dichloropropene, 1,3-Dichloropropane, 1,2,3-Trichloropropane, 2,2-Dichloropropane, 1,2,4-Trimethylbenzene, 1,2,3-Trichlorobenzene, n-Butylbenzene, 1,3,5-Trimethylbenzene, tert-Butylbenzene, sec-Butylbenzene, Bromochloromethane, Dicamba, Methane, Bromochloroacetic acid, Metribuzin, Trichlorotrifluoroethane, Mirex, o-Chlorotoluene, p-Chlorotoluene, m-Dichlorobenzene, 1,1-Dichloroethane, 1,1,1,2-Tetrachloroethane, 1,1,2,2-Tetrachloroethane, Bromobenzene, Isopropylbenzene, n-Propylbenzene, Radon, Alpha, Dissolved, Potassium-40 (total), Tritium, Strontium-89, Cesium-134, Perchlorate, Bromodichloroacetic acid, Chlorodibromoacetic acid, Tribromoacetic acid, Chlorodifluoromethane, Uranium-234 (pCi/L), Uranium-238 (pCi/L)

Testing Summary for New York

The federal government has set standards for some of the pollutants found in tap water supplies.

Contaminants reported as tested by water suppliers in New York298
 Contaminants tested due to federal law: 106
 Contaminants tested in addition to those required by federal law: 192

Violation Summary for New York

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in New York since 2004

Violation TypeNumber of Violations
Failure to monitor regularly16,477
Operations Report2,269
Failure to monitor, Routine Major (Coliform bacteria)1,274
Monitoring and Reporting Disinfection Byproduct Rule974
Over maximum contaminant level, Average805
Follow-up and Routine Tap Sampling620
Failure to report information to the public or state agency in the Consumer Confidence Report470
Maximum contaminant level, Monthly (Coliform bacteria)186
Inadequate reporting of information to the public164
Over maximum contaminant level, Single Sample115
Treatment Technique No Certif. Operator104
State Assigned Maximum Permissible Level Non-Compliance91
Failure to monitor, Routine Minor (Coliform bacteria)86
Excess Turbidity at 0.3 NTU82
Improper Treatment Techniques74
Failure to Filter (Surface Water Treatment Rule)68
Maximum contaminant level, Acute (Coliform bacteria)60
Record Keeping Violation59
Initial Tap Sampling for Lead and Copper53
Initial Water Quality Parameter Monitoring and Reporting36
Excess Turbidity at 1 NTU30
Failure to monitor, Repeat Minor (Coliform bacteria)28
Filter Turbidity Reporting27
Failure to monitor or report, Routine/Repeat (Indicators of microbial or virus contamination)24
Failure to notify state agency17
Failure to monitor, Repeat Major (Coliform bacteria)16
Treatment Technique Precursor Removal14
Treatment Technique (Surface Water Treatment Rule)11
Optimal Corrosion Control Treatment Study Recommendation10
Failure to notify public of violation9
Public Education8
Public Notification Violation for National Primary Drinking Water Regulations7
Failure to monitor: Check/Repeat/Confirmation sampling6
Non-Acute maximum residual disinfectant level3
Initial, Follow-up, or Routine Source Water Treatment Monitoring and Reporting2
Optimal Corrosion Control Treatment Installation/Demonstration2
Treatment Technique Uncovered Reservoir1
Other Non-National Primary Drinking Water Regulations Potential Health Risks1
Water Quality Program Entry Point Non-Compliance1
Treatment Technique w/o State Prior Approval1
Failure to monitor or report, Routine/Repeat (Indicators of microbial or virus contamination)1
Variance/Exemption/Other Compliance1