What was found in Manchester'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 | 1700 µg/L 17% of the EPA limit 10000 µg/L Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Fluoride | 854 µg/L 21% of the EPA limit 4000 µg/L Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| TTHM | 61.625 µg/L 77% of the EPA limit 80 µg/L Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Barium | 23.85 µg/L 1.2% of the EPA limit 2000 µg/L Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 23.44 µg/L 39% of the EPA limit 60 µg/L Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Chloroform | 22.75 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 17.875 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 9.675 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 8.175 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 7.975 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.84 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Bromoform | 2.51 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.85 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Chlorobenzene | 1.4 µg/L 1.4% of the EPA limit 100 µg/L Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 0.9800 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| Pentachlorophenol | 0.1000 µg/L 10% of the EPA limit 1 µg/L Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2019 | 1/1 | SYR4 |
| PFOA | 0.0120 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0050 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0050 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2025 | 1/1 | UCMR-5 |
| PFOS | 0.0048 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0043 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2025 | 1/1 | UCMR-5 |
| Pfhpa | 0.0040 µg/L No EPA limit set Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L Main supplier: MANCHESTER BY THE SEA DPW · 5,201 people · 2025 | 1/1 | LCR |
Water suppliers serving Manchester
| Supplier | Population served |
|---|---|
| MANCHESTER BY THE SEA DPW | 5,201 |
Frequently asked questions about Manchester tap water
Is Manchester tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Manchester. 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 Manchester?
1 public water supplier report drinking-water monitoring for Manchester, Massachusetts to the EPA. Each is listed above with its population served.
What contaminants are in Manchester's water?
The contaminants EPA monitoring detected in Manchester include Nitrate, Fluoride, TTHM, Barium, Total Haloacetic Acids (HAA5). 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.