What was found in Waterford'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 | 88 µg/L 0.9% of the EPA limit 10000 µg/L Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019
Highest in the city: 1490 µg/L — WATERFORD COUNTRY SCHOOL, INC. · 180 people · 2019 | 2/4 | SYR4 |
| Nitrate-Nitrite | 70.75 µg/L 0.7% of the EPA limit 10000 µg/L Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019
Highest in the city: 1446 µg/L — WATERFORD COUNTRY SCHOOL, INC. · 180 people · 2019 | 2/4 | SYR4 |
| Fluoride | 926 µg/L 23% of the EPA limit 4000 µg/L Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019 | 2/4 | SYR4 |
| Copper | 161 µg/L 12% of the EPA limit 1300 µg/L Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019
Highest in the city: 441.25 µg/L — WATERFORD COUNTRY SCHOOL, INC. · 180 people · 2019 | 4/4 | SYR4 |
| TTHM | 76.275 µg/L 95% of the EPA limit 80 µg/L Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019
Highest in the city: 95.7 µg/L — MONTVILLE WATER SUPPLY · 1,300 people · 2019 | 3/4 | SYR4 |
| Lead | 7.8 µg/L 52% of the EPA limit 15 µg/L Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019
Highest in the city: 78.29 µg/L — WATERFORD WPCA · 16,578 people · 2017 | 4/4 | SYR4 |
| Chloroform | 14.86 µg/L No EPA limit set Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019
Highest in the city: 70 µg/L — MONTVILLE WATER SUPPLY · 1,300 people · 2019 | 2/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 34.6 µg/L 58% of the EPA limit 60 µg/L Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019
Highest in the city: 40 µg/L — MONTVILLE WATER SUPPLY · 1,300 people · 2019 | 3/4 | SYR4 |
| Barium | 6 µg/L 0.3% of the EPA limit 2000 µg/L Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019
Highest in the city: 23.6 µg/L — WATERFORD COUNTRY SCHOOL, INC. · 180 people · 2019 | 2/4 | SYR4 |
| Bromodichloromethane | 3.59 µg/L No EPA limit set Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019
Highest in the city: 21 µg/L — MONTVILLE WATER SUPPLY · 1,300 people · 2019 | 2/4 | SYR4 |
| Trichloroacetic Acid | 19 µg/L No EPA limit set Highest in the city: MONTVILLE WATER SUPPLY · 1,300 people · 2019 | 1/4 | SYR4 |
| Dichloroacetic Acid | 18.9 µg/L No EPA limit set Highest in the city: MONTVILLE WATER SUPPLY · 1,300 people · 2019 | 1/4 | SYR4 |
| Dibromochloromethane | 0.6000 µg/L No EPA limit set Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2019
Highest in the city: 7.625 µg/L — MONTVILLE WATER SUPPLY · 1,300 people · 2019 | 2/4 | SYR4 |
| Monochloroacetic Acid | 5.25 µg/L No EPA limit set Highest in the city: MONTVILLE WATER SUPPLY · 1,300 people · 2019 | 1/4 | SYR4 |
| Combined Uranium | 3.906 µg/L 13% of the EPA limit 30 µg/L Highest in the city: WATERFORD COUNTRY SCHOOL, INC. · 180 people · 2019 | 1/4 | SYR4 |
| Dibromoacetic Acid | 3.52 µg/L No EPA limit set Highest in the city: MONTVILLE WATER SUPPLY · 1,300 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 1.05 pCi/L 21% of the EPA limit 5 pCi/L Highest in the city: WATERFORD COUNTRY SCHOOL, INC. · 180 people · 2019 | 1/4 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L Highest in the city: WATERFORD COUNTRY SCHOOL, INC. · 180 people · 2019 | 1/4 | SYR4 |
| Bromoform | 0.8630 µg/L No EPA limit set Highest in the city: MONTVILLE WATER SUPPLY · 1,300 people · 2019 | 1/4 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: NEW LONDON DEPT. OF PUBLIC UTILITIES · 27,620 people · 2025
Highest in the city: 0.0015 mg/L — WATERFORD WPCA · 16,578 people · 2023 | 4/4 | 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 Waterford
| Supplier | Population served |
|---|---|
| NEW LONDON DEPT. OF PUBLIC UTILITIES | 27,620 |
| WATERFORD WPCA | 16,578 |
| MONTVILLE WATER SUPPLY | 1,300 |
| WATERFORD COUNTRY SCHOOL, INC. | 180 |
Frequently asked questions about Waterford tap water
Is Waterford tap water safe to drink?
EPA testing detected 20 contaminants in the water serving Waterford. 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 Waterford?
4 public water suppliers report drinking-water monitoring for Waterford, Connecticut to the EPA. Each is listed above with its population served.
What contaminants are in Waterford's water?
The contaminants EPA monitoring detected in Waterford include Nitrate, Nitrate-Nitrite, Fluoride, Copper, TTHM. 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.