What was found in Dover'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 | 2750 µg/L 28% of the EPA limit 10000 µg/L Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 5126.5 µg/L — PLEASANT RIDGE APARTMENTS · 25 people · 2019 | 11/11 | SYR4 |
| Nitrate-Nitrite | 2581 µg/L 26% of the EPA limit 10000 µg/L Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2018 | 4/11 | SYR4 |
| Fluoride | 140 µg/L 3.5% of the EPA limit 4000 µg/L Highest in the city: HIGH MEADOWS PARK INC. · 700 people · 2013 | 1/11 | SYR4 |
| TTHM | 12.15 µg/L 15% of the EPA limit 80 µg/L Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 120.2 µg/L — OLIVET MANAGEMENT, LLC · 79 people · 2018 | 7/11 | SYR4 |
| Chloroform | 9.9 µg/L No EPA limit set Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 114 µg/L — OLIVET MANAGEMENT, LLC · 79 people · 2018 | 5/11 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.26 µg/L 19% of the EPA limit 60 µg/L Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 101.25 µg/L — OLIVET MANAGEMENT, LLC · 79 people · 2018 | 6/11 | SYR4 |
| Trichloroacetic Acid | 3.3 µg/L No EPA limit set Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 66.7 µg/L — OLIVET MANAGEMENT, LLC · 79 people · 2018 | 3/11 | SYR4 |
| Barium | 41.9 µg/L 2.1% of the EPA limit 2000 µg/L Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2018
Highest in the city: 56.6 µg/L — WINGDALE VILLAGE PARK · 150 people · 2019 | 10/11 | SYR4 |
| Dichloroacetic Acid | 9.14 µg/L No EPA limit set Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 36.4 µg/L — OLIVET MANAGEMENT, LLC · 79 people · 2018 | 4/11 | SYR4 |
| Copper | 32 µg/L 2.5% of the EPA limit 1300 µg/L Highest in the city: WINGDALE VILLAGE PARK · 150 people · 2019 | 3/11 | SYR4 |
| Chromium | 19.24 µg/L 19% of the EPA limit 100 µg/L Highest in the city: PLEASANT RIDGE APARTMENTS · 25 people · 2019 | 5/11 | SYR4 |
| Combined Uranium | 2.71085 µg/L 9% of the EPA limit 30 µg/L Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 16.5092 µg/L — FIRST ONE MOBIL HOME PARK 4016002 · 25 people · 2016 | 7/11 | SYR4 |
| Gross Beta Particle Activity | 8.602 pCi/L No EPA limit set Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 9.9005 pCi/L — PLEASANT RIDGE APARTMENTS · 25 people · 2019 | 7/11 | SYR4 |
| Bromodichloromethane | 1.2 µg/L No EPA limit set Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 8.15 µg/L — OLIVET MANAGEMENT, LLC · 79 people · 2018 | 5/11 | SYR4 |
| Combined Radium (-226 And -228) | 1.36 pCi/L 27% of the EPA limit 5 pCi/L Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 7.986 pCi/L — FIRST ONE MOBIL HOME PARK 4016002 · 25 people · 2019 | 7/11 | SYR4 |
| Toluene | 7.974 µg/L 0.8% of the EPA limit 1000 µg/L Highest in the city: HIGH MEADOWS PARK INC. · 700 people · 2019 | 2/11 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.62 pCi/L 37% of the EPA limit 15 pCi/L Highest in the city: SCHREIBER WATER WORKS · 80 people · 2019 | 4/11 | SYR4 |
| Cyanide | 5 µg/L 2.5% of the EPA limit 200 µg/L Highest in the city: CRESTVIEW MANOR MOBILE HOME PARK · 60 people · 2015 | 1/11 | SYR4 |
| Monochloroacetic Acid | 4.2 µg/L No EPA limit set Highest in the city: OLIVET MANAGEMENT, LLC · 79 people · 2018 | 1/11 | SYR4 |
| Benzene | 2.1 µg/L 42% of the EPA limit 5 µg/L Highest in the city: PLEASANT RIDGE APARTMENTS · 25 people · 2019 | 1/11 | SYR4 |
| Dibromoacetic Acid | 1 µg/L No EPA limit set Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 2.1 µg/L — WINGDALE VILLAGE PARK · 150 people · 2019 | 2/11 | SYR4 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L Highest in the city: POWELL ROAD MOBILE PARK · 210 people · 2017 | 3/11 | SYR4 |
| Arsenic | 1.94 µg/L 19% of the EPA limit 10 µg/L Highest in the city: FIRST ONE MOBIL HOME PARK 4016002 · 25 people · 2018 | 6/11 | SYR4 |
| Antimony, Total | 1.83 µg/L 31% of the EPA limit 6 µg/L Highest in the city: HIGH MEADOWS PARK INC. · 700 people · 2013 | 1/11 | SYR4 |
| Dalapon | 1.8 µg/L 0.9% of the EPA limit 200 µg/L Highest in the city: OLIVET MANAGEMENT, LLC · 79 people · 2015 | 1/11 | SYR4 |
| Dibromochloromethane | 1.0965 µg/L No EPA limit set Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019
Highest in the city: 1.555 µg/L — WINGDALE VILLAGE PARK · 150 people · 2019 | 7/11 | SYR4 |
| Bromoform | 1.451 µg/L No EPA limit set Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2019 | 4/11 | SYR4 |
| Thallium, Total | 0.5000 µg/L 25% of the EPA limit 2 µg/L Highest in the city: POWELL ROAD MOBILE PARK · 210 people · 2017 | 2/11 | SYR4 |
| Lead | 0.1500 µg/L 1% of the EPA limit 15 µg/L Highest in the city: SCHREIBER WATER WORKS · 80 people · 2017 | 1/11 | SYR4 |
| Hexachlorocyclopentadiene | 0.1200 µg/L 0.2% of the EPA limit 50 µg/L Highest in the city: OLIVET MANAGEMENT, LLC · 79 people · 2015 | 1/11 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: REAGANS MILL WATER COMPANY · 1,225 people · 2024
Highest in the city: 0.0158 mg/L — POWELL ROAD MOBILE PARK · 210 people · 2023 | 11/11 | 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 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 Dover
| Supplier | Population served |
|---|---|
| REAGANS MILL WATER COMPANY | 1,225 |
| DOVER PLAINS WATER CO | 800 |
| HIGH MEADOWS PARK INC. | 700 |
| POWELL ROAD MOBILE PARK | 210 |
| WORLD OLIVET ASSEMBLY - CHURCH/TEMP. RES | 190 |
| WINGDALE VILLAGE PARK | 150 |
| SCHREIBER WATER WORKS | 80 |
| OLIVET MANAGEMENT, LLC | 79 |
| CRESTVIEW MANOR MOBILE HOME PARK | 60 |
| FIRST ONE MOBIL HOME PARK 4016002 | 25 |
| PLEASANT RIDGE APARTMENTS | 25 |
Frequently asked questions about Dover tap water
Is Dover tap water safe to drink?
EPA testing detected 31 contaminants in the water serving Dover. 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 Dover?
11 public water suppliers report drinking-water monitoring for Dover, New York to the EPA. Each is listed above with its population served.
What contaminants are in Dover's water?
The contaminants EPA monitoring detected in Dover include Nitrate, Nitrate-Nitrite, Fluoride, TTHM, Chloroform. 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.