What was found in North Attleborough'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 | 4582.5 µg/L 46% of the EPA limit 10000 µg/L Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019
Highest in the city: 6960 µg/L — KINGS GRANT WATER CO INC · 434 people · 2019 | 2/2 | SYR4 |
| Fluoride | 1320 µg/L 33% of the EPA limit 4000 µg/L Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2018 | 1/2 | SYR4 |
| Barium | 59.5 µg/L 3% of the EPA limit 2000 µg/L Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2018
Highest in the city: 89.25 µg/L — KINGS GRANT WATER CO INC · 434 people · 2019 | 2/2 | SYR4 |
| Copper | 85.6 µg/L 6.6% of the EPA limit 1300 µg/L Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| TTHM | 54.525 µg/L 68% of the EPA limit 80 µg/L Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 26 µg/L 43% of the EPA limit 60 µg/L Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Chloroform | 25.45 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 19.12 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 12 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 11.1 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 10.78 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Chlorobenzene | 6.54 µg/L 6.5% of the EPA limit 100 µg/L Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 4.54 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Bromoform | 3.4 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 3 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 2.975 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| O-Dichlorobenzene | 0.8500 µg/L 0.1% of the EPA limit 600 µg/L Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| P-Dichlorobenzene | 0.8300 µg/L 1.1% of the EPA limit 75 µg/L Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0140 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2024 | 1/2 | UCMR-5 |
| Pfhxa | 0.0090 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2024 | 1/2 | UCMR-5 |
| PFOA | 0.0090 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2024 | 1/2 | UCMR-5 |
| PFOS | 0.0080 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2024 | 1/2 | UCMR-5 |
| Pfba | 0.0060 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2024 | 1/2 | UCMR-5 |
| PFBS | 0.0060 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2024 | 1/2 | UCMR-5 |
| Pfhpa | 0.0060 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0051 mg/L 34% of the EPA limit 0.0150 mg/L Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2025 | 2/2 | LCR |
| PFHXS | 0.0040 µg/L No EPA limit set Main supplier: NORTH ATTLEBORO WATER DEPT · 31,410 people · 2024 | 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 North Attleborough
| Supplier | Population served |
|---|---|
| NORTH ATTLEBORO WATER DEPT | 31,410 |
| KINGS GRANT WATER CO INC | 434 |
Frequently asked questions about North Attleborough tap water
Is North Attleborough tap water safe to drink?
EPA testing detected 27 contaminants in the water serving North Attleborough. 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 North Attleborough?
2 public water suppliers report drinking-water monitoring for North Attleborough, Massachusetts to the EPA. Each is listed above with its population served.
What contaminants are in North Attleborough's water?
The contaminants EPA monitoring detected in North Attleborough include Nitrate, Fluoride, Barium, 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.