What was found in Southeast's water
The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 21800 µg/L 218% of the EPA limit, in the worst sample — 10000 µg/L | 21/25 | SYR4 |
| Nitrate-Nitrite | 4390 µg/L 44% of the EPA limit 10000 µg/L | 9/25 | SYR4 |
| Fluoride | 2200 µg/L 55% of the EPA limit 4000 µg/L | 10/25 | SYR4 |
| Barium | 367 µg/L 18% of the EPA limit 2000 µg/L | 19/25 | SYR4 |
| TTHM | 267 µg/L 334% of the EPA limit, in the worst sample — 80 µg/L | 19/25 | SYR4 |
| Chloroform | 250 µg/L No EPA limit set | 20/25 | SYR4 |
| Trichloroacetic Acid | 98 µg/L No EPA limit set | 13/25 | SYR4 |
| Dichloroacetic Acid | 85 µg/L No EPA limit set | 17/25 | SYR4 |
| Total Haloacetic Acids (HAA5) | 85 µg/L 142% of the EPA limit, in the worst sample — 60 µg/L | 18/25 | SYR4 |
| Bromoform | 73 µg/L No EPA limit set | 18/25 | SYR4 |
| Copper | 58 µg/L 4.5% of the EPA limit 1300 µg/L | 1/25 | SYR4 |
| cis-1,2-Dichloroethylene | 31.4 µg/L 45% of the EPA limit 70 µg/L | 3/25 | SYR4 |
| Tetrachloroethylene | 20 µg/L 400% of the EPA limit, in the worst sample — 5 µg/L | 3/25 | SYR4 |
| Trichloroethylene | 20 µg/L 400% of the EPA limit, in the worst sample — 5 µg/L | 3/25 | SYR4 |
| Bromodichloromethane | 18 µg/L No EPA limit set | 20/25 | SYR4 |
| 1,2-Dichloroethane | 17 µg/L 340% of the EPA limit, in the worst sample — 5 µg/L | 2/25 | SYR4 |
| Dibromoacetic Acid | 15 µg/L No EPA limit set | 16/25 | SYR4 |
| 1,1,1-Trichloroethane | 13 µg/L 6.5% of the EPA limit 200 µg/L | 2/25 | SYR4 |
| Combined Uranium | 13 µg/L 43% of the EPA limit 30 µg/L | 11/25 | SYR4 |
| Dibromochloromethane | 12 µg/L No EPA limit set | 20/25 | SYR4 |
| Cyanide | 10 µg/L 5% of the EPA limit 200 µg/L | 2/25 | SYR4 |
| Chromium | 8.5 µg/L 8.5% of the EPA limit 100 µg/L | 5/25 | SYR4 |
| Monochloroacetic Acid | 8.5 µg/L No EPA limit set | 9/25 | SYR4 |
| Gross Alpha, Excl. Radon And U | 7.5 pCi/L 50% of the EPA limit 15 pCi/L | 10/25 | SYR4 |
| Dichloromethane | 6.8 µg/L 136% of the EPA limit, in the worst sample — 5 µg/L | 3/25 | SYR4 |
| Monobromoacetic Acid | 3.7 µg/L No EPA limit set | 6/25 | SYR4 |
| Combined Radium (-226 And -228) | 3.39 pCi/L 68% of the EPA limit 5 pCi/L | 3/25 | SYR4 |
| Selenium | 3.1 µg/L 6.2% of the EPA limit 50 µg/L | 4/25 | SYR4 |
| Di(2-ethylhexyl) Adipate | 2.15 µg/L 0.5% of the EPA limit 400 µg/L | 2/25 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2.15 µg/L 36% of the EPA limit 6 µg/L | 3/25 | SYR4 |
| Arsenic | 1.4 µg/L 14% of the EPA limit 10 µg/L | 9/25 | SYR4 |
| Antimony, Total | 1.1 µg/L 18% of the EPA limit 6 µg/L | 4/25 | SYR4 |
| Cadmium | 1 µg/L 20% of the EPA limit 5 µg/L | 5/25 | SYR4 |
| Dalapon | 1 µg/L 0.5% of the EPA limit 200 µg/L | 2/25 | SYR4 |
| Toxaphene | 0.5200 µg/L 17% of the EPA limit 3 µg/L | 2/25 | SYR4 |
| 1,1,2-Trichloroethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/25 | SYR4 |
| 1,1-Dichloroethylene | 0.5000 µg/L 7.1% of the EPA limit 7 µg/L | 1/25 | SYR4 |
| 1,2,4-Trichlorobenzene | 0.5000 µg/L 0.7% of the EPA limit 70 µg/L | 1/25 | SYR4 |
| 1,2-Dichloropropane | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/25 | SYR4 |
| Benzene | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/25 | SYR4 |
| Chlorobenzene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L | 1/25 | SYR4 |
| Carbon Tetrachloride | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/25 | SYR4 |
| Ethylbenzene | 0.5000 µg/L 0.1% of the EPA limit 700 µg/L | 1/25 | SYR4 |
| Styrene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L | 1/25 | SYR4 |
| Toluene | 0.5000 µg/L 0.1% of the EPA limit 1000 µg/L | 1/25 | SYR4 |
| Vinyl Chloride | 0.5000 µg/L 25% of the EPA limit 2 µg/L | 1/25 | SYR4 |
| O-Dichlorobenzene | 0.5000 µg/L 0.1% of the EPA limit 600 µg/L | 1/25 | SYR4 |
| P-Dichlorobenzene | 0.5000 µg/L 0.7% of the EPA limit 75 µg/L | 1/25 | SYR4 |
| trans-1,2-Dichloroethylene | 0.5000 µg/L 0.5% of the EPA limit 100 µg/L | 1/25 | SYR4 |
| Beryllium, Total | 0.3000 µg/L 7.5% of the EPA limit 4 µg/L | 2/25 | SYR4 |
| Thallium, Total | 0.3000 µg/L 15% of the EPA limit 2 µg/L | 1/25 | SYR4 |
| Chlordane | 0.2100 µg/L 11% of the EPA limit 2 µg/L | 2/25 | SYR4 |
| 2,4,5-TP | 0.2000 µg/L 0.4% of the EPA limit 50 µg/L | 2/25 | SYR4 |
| Carbofuran | 0.2000 µg/L 0.5% of the EPA limit 40 µg/L | 2/25 | SYR4 |
| Dinoseb | 0.2000 µg/L 2.9% of the EPA limit 7 µg/L | 2/25 | SYR4 |
| Mercury | 0.2000 µg/L 10% of the EPA limit 2 µg/L | 2/25 | SYR4 |
| Oxamyl | 0.2000 µg/L 0.1% of the EPA limit 200 µg/L | 2/25 | SYR4 |
| Atrazine | 0.1100 µg/L 3.7% of the EPA limit 3 µg/L | 2/25 | SYR4 |
| Benzo(A)Pyrene | 0.1100 µg/L 55% of the EPA limit 0.2000 µg/L | 2/25 | SYR4 |
| Endrin | 0.1100 µg/L 5.5% of the EPA limit 2 µg/L | 2/25 | SYR4 |
| Hexachlorobenzene | 0.1100 µg/L 11% of the EPA limit 1 µg/L | 2/25 | SYR4 |
| Heptachlor | 0.1100 µg/L 27% of the EPA limit 0.4000 µg/L | 2/25 | SYR4 |
| Heptachlor Epoxide | 0.1100 µg/L 55% of the EPA limit 0.2000 µg/L | 2/25 | SYR4 |
| Hexachlorocyclopentadiene | 0.1100 µg/L 0.2% of the EPA limit 50 µg/L | 2/25 | SYR4 |
| Methoxychlor | 0.1100 µg/L 0.3% of the EPA limit 40 µg/L | 1/25 | SYR4 |
| Simazine | 0.1100 µg/L 2.8% of the EPA limit 4 µg/L | 2/25 | SYR4 |
| 2,4-D | 0.1000 µg/L 0.1% of the EPA limit 70 µg/L | 1/25 | SYR4 |
| Picloram | 0.1000 µg/L 0% of the EPA limit 500 µg/L | 1/25 | SYR4 |
| Lead | 0.0762 mg/L 508% above the EPA limit of 0.0150 mg/L | 25/25 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Southeast
| Supplier | Population served |
|---|---|
| BREWSTER VILLAGE | 2,162 |
| MOUNT EBO WS | 1,500 |
| BREWSTER HEIGHTS | 1,350 |
| HUNTERS GLEN CONDOMINIUM WS | 875 |
| REED FARM CONDOMINIUMS W.S. | 600 |
| BLACKBERRY HILL | 500 |
| VAILS GROVE COOPERATIVE | 500 |
| PEACEABLE HILL WATER DISTRICT | 475 |
| HILLCREST WATER DISTRICT | 400 |
| STARR RIDGE MANOR | 295 |
| HILLTOP MEADOWS WATER SUPPLY | 196 |
| HOLLY STREAM CONDOMINIUM APTS | 168 |
| SPRINGHOUSE ESTATES W.W. CORP. | 162 |
| MOUNTAINVIEW APTS | 132 |
| MOUNTAIN BROOK HOMES | 125 |
| DEANS CORNERS WATER WORKS | 107 |
| FOX HILL ESTATES | 100 |
| BREWSTER WOODS CONDOMINIUM | 99 |
| BIRCH HILL ACRES | 60 |
| SPRING KNOLLS | 53 |
| MIDDLEBRANCH APTS | 50 |
| DELANCY STREET FOUNDATION (CASTLE) | 48 |
| NIKAJ ESTATES | 40 |
| RIVERSIDE APARTMENTS | 36 |
| VIRGINIA WOODS CONDO | 35 |
Frequently asked questions about Southeast tap water
Is Southeast tap water safe to drink?
EPA testing detected 69 contaminants in the water serving Southeast. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Southeast?
25 public water suppliers report drinking-water monitoring for Southeast, New York to the EPA. Each is listed above with its population served.
What contaminants are in Southeast's water?
The contaminants EPA monitoring detected in Southeast include Nitrate, Nitrate-Nitrite, Fluoride, Barium, TTHM. The full list, with the highest level found and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.