What was found in Raynham'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 | 910 µg/L 9.1% of the EPA limit 10000 µg/L Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019
Highest in the city: 1667.5 µg/L — NORTH RAYNHAM WATER DISTRICT · 3,902 people · 2019 | 2/2 | SYR4 |
| Fluoride | 439.5 µg/L 11% of the EPA limit 4000 µg/L Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2018 | 2/2 | SYR4 |
| TTHM | 46.45 µg/L 58% of the EPA limit 80 µg/L Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019 | 2/2 | SYR4 |
| Copper | 20 µg/L 1.5% of the EPA limit 1300 µg/L Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019 | 1/2 | SYR4 |
| Chloroform | 13.485 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019
Highest in the city: 17.48 µg/L — NORTH RAYNHAM WATER DISTRICT · 3,902 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 16.315 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 15.615 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 4.69 µg/L 7.8% of the EPA limit 60 µg/L Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019
Highest in the city: 12.7 µg/L — NORTH RAYNHAM WATER DISTRICT · 3,902 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 2.65 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019
Highest in the city: 5.595 µg/L — NORTH RAYNHAM WATER DISTRICT · 3,902 people · 2019 | 2/2 | SYR4 |
| Bromoform | 4.63 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019
Highest in the city: 5.46 µg/L — NORTH RAYNHAM WATER DISTRICT · 3,902 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 4.09 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019
Highest in the city: 4.69 µg/L — NORTH RAYNHAM WATER DISTRICT · 3,902 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 3.9 µg/L No EPA limit set Highest in the city: NORTH RAYNHAM WATER DISTRICT · 3,902 people · 2019 | 1/2 | SYR4 |
| Tetrachloroethylene | 1.79 µg/L 36% of the EPA limit 5 µg/L Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 1 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019
Highest in the city: 1.75 µg/L — NORTH RAYNHAM WATER DISTRICT · 3,902 people · 2019 | 2/2 | SYR4 |
| Xylenes, Total | 0.6000 µg/L 0% of the EPA limit 10000 µg/L Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2019 | 1/2 | SYR4 |
| PFOA | 0.0920 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2025 | 1/2 | UCMR-5 |
| Pfhxa | 0.0588 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2025 | 1/2 | UCMR-5 |
| Pfpea | 0.0363 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2025 | 2/2 | UCMR-5 |
| Pfhpa | 0.0294 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2025 | 1/2 | UCMR-5 |
| Pfba | 0.0226 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2025 | 1/2 | UCMR-5 |
| PFBS | 0.0182 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0080 mg/L 53% of the EPA limit 0.0150 mg/L Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2023 | 2/2 | LCR |
| PFHXS | 0.0032 µg/L No EPA limit set Main supplier: RAYNHAM CENTER WATER DISTRICT · 10,964 people · 2025 | 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 Raynham
| Supplier | Population served |
|---|---|
| RAYNHAM CENTER WATER DISTRICT | 10,964 |
| NORTH RAYNHAM WATER DISTRICT | 3,902 |
Frequently asked questions about Raynham tap water
Is Raynham tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Raynham. 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 Raynham?
2 public water suppliers report drinking-water monitoring for Raynham, Massachusetts to the EPA. Each is listed above with its population served.
What contaminants are in Raynham's water?
The contaminants EPA monitoring detected in Raynham include Nitrate, Fluoride, TTHM, Copper, 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.