What was found in Hyde Park's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 790 µg/L 7.9% of the EPA limit 10000 µg/L Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 11000 µg/L — FRANTONI VILLAS · 18 people · 2019 | 16/20 | SYR4 |
| Nitrate-Nitrite | 1176.5 µg/L 12% of the EPA limit 10000 µg/L Highest in the city: HYDE PARK MOBILE MANOR ESTATES · 185 people · 2013 | 4/20 | SYR4 |
| Barium | 22 µg/L 1.1% of the EPA limit 2000 µg/L Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 581.925 µg/L — DUTCHESS ESTATES INC · 400 people · 2019 | 16/20 | SYR4 |
| Copper | 429 µg/L 33% of the EPA limit 1300 µg/L Highest in the city: PINEBROOK ESTATES · 400 people · 2017 | 4/20 | SYR4 |
| Fluoride | 30.8 µg/L 0.8% of the EPA limit 4000 µg/L Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 242 µg/L — HYDE PARK MOBILE MANOR ESTATES · 185 people · 2019 | 7/20 | SYR4 |
| TTHM | 79 µg/L 99% of the EPA limit 80 µg/L Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 162.9 µg/L — GREENBUSH WATER DIST · 805 people · 2019 | 18/20 | SYR4 |
| Chloroform | 62.625 µg/L No EPA limit set Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 114 µg/L — GREENBUSH WATER DIST · 805 people · 2019 | 18/20 | SYR4 |
| Total Haloacetic Acids (HAA5) | 57.5 µg/L 96% of the EPA limit 60 µg/L Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 84.97 µg/L — HARBOURD HILLS / ZONE D · 1,544 people · 2019 | 17/20 | SYR4 |
| Trichloroacetic Acid | 28 µg/L No EPA limit set Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 42.77 µg/L — FALL CREEK MHP · 100 people · 2019 | 14/20 | SYR4 |
| Bromodichloromethane | 20.105 µg/L No EPA limit set Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 41.9 µg/L — GREENBUSH WATER DIST · 805 people · 2019 | 18/20 | SYR4 |
| Dichloroacetic Acid | 27.025 µg/L No EPA limit set Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 37 µg/L — HARBOURD HILLS / ZONE D · 1,544 people · 2019 | 14/20 | SYR4 |
| Cyanide | 36 µg/L 18% of the EPA limit 200 µg/L Highest in the city: DUTCHESS ESTATES INC · 400 people · 2019 | 1/20 | SYR4 |
| Monobromoacetic Acid | 24.83 µg/L No EPA limit set Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 34.65 µg/L — STAATSBURG WATER SYSTEM · 1,164 people · 2019 | 7/20 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 25.92 µg/L — FRANTONI VILLAS · 18 people · 2019 | 13/20 | SYR4 |
| Dibromochloromethane | 8.657 µg/L No EPA limit set Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 17.23 µg/L — GREENBUSH WATER DIST · 805 people · 2019 | 18/20 | SYR4 |
| Lithium | 15.8 µg/L No EPA limit set Highest in the city: GREENFIELD WATER DISTRICT · 1,050 people · 2024 | 1/20 | UCMR-5 |
| Bromoform | 1.034 µg/L No EPA limit set Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 12.5325 µg/L — GREENBUSH WATER DIST · 805 people · 2019 | 13/20 | SYR4 |
| Gross Beta Particle Activity | 9.022 pCi/L No EPA limit set Highest in the city: HYDE PARK TERRACE APARTMENTS · 70 people · 2016 | 4/20 | SYR4 |
| Toluene | 6.975 µg/L 0.7% of the EPA limit 1000 µg/L Highest in the city: HYDE PARK MOBILE MANOR ESTATES · 185 people · 2018 | 2/20 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6.446 pCi/L 43% of the EPA limit 15 pCi/L Highest in the city: HYDE PARK TERRACE APARTMENTS · 70 people · 2016 | 5/20 | SYR4 |
| Dibromoacetic Acid | 3.15 µg/L No EPA limit set Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 5.8 µg/L — FRANTONI VILLAS · 18 people · 2019 | 13/20 | SYR4 |
| Combined Radium (-226 And -228) | 5.166 pCi/L 103% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Highest in the city: PINEBROOK ESTATES · 400 people · 2019 | 7/20 | SYR4 |
| Antimony, Total | 3 µg/L 50% of the EPA limit 6 µg/L Highest in the city: HYDE PARK MOBILE MANOR ESTATES · 185 people · 2019 | 1/20 | SYR4 |
| Arsenic | 0.4000 µg/L 4% of the EPA limit 10 µg/L Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 3 µg/L — HYDE PARK MOBILE MANOR ESTATES · 185 people · 2019 | 8/20 | SYR4 |
| Lead | 3 µg/L 20% of the EPA limit 15 µg/L Highest in the city: ARBORS CONDOMINIUMS WATER DISTRICT · 450 people · 2012 | 2/20 | SYR4 |
| Monochloroacetic Acid | 2.93 µg/L No EPA limit set Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 3 µg/L — ARBORS CONDOMINIUMS WATER DISTRICT · 450 people · 2019 | 4/20 | SYR4 |
| Selenium | 0.9850 µg/L 2% of the EPA limit 50 µg/L Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019
Highest in the city: 2.995 µg/L — GREENFIELD WATER DISTRICT · 1,050 people · 2019 | 6/20 | SYR4 |
| Combined Uranium | 2.68349 µg/L 8.9% of the EPA limit 30 µg/L Highest in the city: HYDE PARK TERRACE APARTMENTS · 70 people · 2016 | 6/20 | SYR4 |
| Beryllium, Total | 0.4000 µg/L 10% of the EPA limit 4 µg/L Highest in the city: HYDE PARK MOBILE MANOR ESTATES · 185 people · 2019 | 1/20 | SYR4 |
| 2,4-D | 0.2800 µg/L 0.4% of the EPA limit 70 µg/L Main supplier: HYDE PARK REGIONAL · 6,928 people · 2019 | 1/20 | SYR4 |
| Lead | 0.00080 mg/L 5.3% of the EPA limit 0.0150 mg/L Main supplier: HYDE PARK REGIONAL · 6,928 people · 2025
Highest in the city: 0.0062 mg/L — QUAKER HILL ESTATES W D · 350 people · 2024 | 20/20 | LCR |
| PFOS | 0.0057 µg/L No EPA limit set Highest in the city: GREENFIELD WATER DISTRICT · 1,050 people · 2024 | 1/20 | UCMR-5 |
| Pfpea | 0.0030 µg/L No EPA limit set Highest in the city: GREENFIELD WATER DISTRICT · 1,050 people · 2024 | 1/20 | UCMR-5 |
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 95th percentile of the
system's samples — 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 Hyde Park
| Supplier | Population served |
|---|---|
| HYDE PARK REGIONAL | 6,928 |
| HARBOURD HILLS / ZONE D | 1,544 |
| STAATSBURG WATER SYSTEM | 1,164 |
| GREENFIELD WATER DISTRICT | 1,050 |
| GREENBUSH WATER DIST | 805 |
| SOUTH CROSSROAD WATER CO INC | 450 |
| ARBORS CONDOMINIUMS WATER DISTRICT | 450 |
| DUTCHESS ESTATES INC | 400 |
| PINEBROOK ESTATES | 400 |
| QUAKER HILL ESTATES W D | 350 |
| VALKILL EAST MOBILE HOME PARK | 300 |
| ELEANOR NURSING CARE CENTER | 190 |
| HYDE PARK MOBILE MANOR ESTATES | 185 |
| HILLTOP COURT AND SALES | 150 |
| PARTRIDGE GARDEN APARTMENTS | 150 |
| FALL CREEK MHP | 100 |
| HAVILAND M.H.P. #1 - ANDREA & DEBRA CT | 78 |
| HYDE PARK TERRACE APARTMENTS | 70 |
| HAVILAND M.H.P. #2 - JENNIFER CT | 53 |
| FRANTONI VILLAS | 18 |
Frequently asked questions about Hyde Park tap water
Is Hyde Park tap water safe to drink?
EPA testing detected 33 contaminants in the water serving Hyde Park. 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 Hyde Park?
20 public water suppliers report drinking-water monitoring for Hyde Park, New York to the EPA. Each is listed above with its population served.
What contaminants are in Hyde Park's water?
The contaminants EPA monitoring detected in Hyde Park include Nitrate, Nitrate-Nitrite, Barium, Copper, Fluoride. The full list, with the level at the main supplier 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.