What was found in Bridgewater'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 | 5247 µg/L 52% of the EPA limit 10000 µg/L Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019 | 1/2 | SYR4 |
| Fluoride | 152.5 µg/L 3.8% of the EPA limit 4000 µg/L Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019 | 1/2 | SYR4 |
| Copper | 128.5 µg/L 9.9% of the EPA limit 1300 µg/L Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019 | 1/2 | SYR4 |
| TTHM | 38.415 µg/L 48% of the EPA limit 80 µg/L Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019
Highest in the city: 67.4 µg/L — MCI BRIDGEWATER · 2,802 people · 2019 | 2/2 | SYR4 |
| Chloroform | 11.8 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019
Highest in the city: 59.2 µg/L — MCI BRIDGEWATER · 2,802 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 14.6 µg/L 24% of the EPA limit 60 µg/L Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019
Highest in the city: 44.44 µg/L — MCI BRIDGEWATER · 2,802 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 6.965 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019
Highest in the city: 23.16 µg/L — MCI BRIDGEWATER · 2,802 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 4.59 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019
Highest in the city: 20.16 µg/L — MCI BRIDGEWATER · 2,802 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 14.02 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 11.685 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 7.99 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019 | 2/2 | SYR4 |
| Bromoform | 2.96 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019
Highest in the city: 2.955 µg/L — MCI BRIDGEWATER · 2,802 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 2.7 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019 | 2/2 | SYR4 |
| Tetrachloroethylene | 1.375 µg/L 28% of the EPA limit 5 µg/L Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2019 | 1/2 | SYR4 |
| PFOA | 0.0090 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2023 | 1/2 | UCMR-5 |
| Pfhxa | 0.0080 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2023 | 1/2 | UCMR-5 |
| PFOS | 0.0070 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2023 | 1/2 | UCMR-5 |
| Pfpea | 0.0070 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2023 | 1/2 | UCMR-5 |
| PFBS | 0.0050 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2023 | 1/2 | UCMR-5 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2025
Highest in the city: 0.0040 mg/L — MCI BRIDGEWATER · 2,802 people · 2025 | 2/2 | LCR |
| PFHXS | 0.0040 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2023 | 1/2 | UCMR-5 |
| Pfhpa | 0.0030 µg/L No EPA limit set Main supplier: BRIDGEWATER WATER DEPARTMENT · 28,633 people · 2023 | 1/2 | 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 Bridgewater
| Supplier | Population served |
|---|---|
| BRIDGEWATER WATER DEPARTMENT | 28,633 |
| MCI BRIDGEWATER | 2,802 |
Frequently asked questions about Bridgewater tap water
Is Bridgewater tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Bridgewater. 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 Bridgewater?
2 public water suppliers report drinking-water monitoring for Bridgewater, Massachusetts to the EPA. Each is listed above with its population served.
What contaminants are in Bridgewater's water?
The contaminants EPA monitoring detected in Bridgewater include Nitrate, Fluoride, Copper, 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.