What was found in New Haven'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 |
|---|---|---|---|
| Copper | 128.05 µg/L 9.9% of the EPA limit 1300 µg/L Main supplier: NEW HAVEN WATER DEPARTMENT · 15,700 people · 2017 | 1/1 | SYR4 |
| TTHM | 66.585 µg/L 83% of the EPA limit 80 µg/L Main supplier: NEW HAVEN WATER DEPARTMENT · 15,700 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 39.94 µg/L 67% of the EPA limit 60 µg/L Main supplier: NEW HAVEN WATER DEPARTMENT · 15,700 people · 2019 | 1/1 | SYR4 |
| Lead | 6.47 µg/L 43% of the EPA limit 15 µg/L Main supplier: NEW HAVEN WATER DEPARTMENT · 15,700 people · 2017 | 1/1 | SYR4 |
| Pfpea | 0.0081 µg/L No EPA limit set Main supplier: NEW HAVEN WATER DEPARTMENT · 15,700 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0056 µg/L No EPA limit set Main supplier: NEW HAVEN WATER DEPARTMENT · 15,700 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0029 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: NEW HAVEN WATER DEPARTMENT · 15,700 people · 2023 | 1/1 | LCR |
Water suppliers serving New Haven
| Supplier | Population served |
|---|---|
| NEW HAVEN WATER DEPARTMENT | 15,700 |
Frequently asked questions about New Haven tap water
Is New Haven tap water safe to drink?
EPA testing detected 7 contaminants in the water serving New Haven. 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 New Haven?
1 public water supplier report drinking-water monitoring for New Haven, Indiana to the EPA. Each is listed above with its population served.
What contaminants are in New Haven's water?
The contaminants EPA monitoring detected in New Haven include Copper, TTHM, Total Haloacetic Acids (HAA5), Lead, Pfpea. 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.