What was found in North Reading'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 |
|---|---|---|---|
| Fluoride | 1175 µg/L 29% of the EPA limit 4000 µg/L Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2018 | 1/1 | SYR4 |
| Nitrate | 1051.5 µg/L 11% of the EPA limit 10000 µg/L Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2018 | 1/1 | SYR4 |
| TTHM | 91.945 µg/L 115% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2019 | 1/1 | SYR4 |
| Chloroform | 80.335 µg/L No EPA limit set Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2019 | 1/1 | SYR4 |
| Barium | 31.8 µg/L 1.6% of the EPA limit 2000 µg/L Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2018 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 22.665 µg/L 38% of the EPA limit 60 µg/L Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 21.86 µg/L No EPA limit set Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 13.98 µg/L No EPA limit set Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 8.142 µg/L No EPA limit set Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 5.702 µg/L No EPA limit set Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2019 | 1/1 | SYR4 |
| Bromoform | 1.9275 µg/L No EPA limit set Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 1.717 µg/L No EPA limit set Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2019 | 1/1 | SYR4 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2018 | 1/1 | SYR4 |
| Carbofuran | 0.9000 µg/L 2.3% of the EPA limit 40 µg/L Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2016 | 1/1 | SYR4 |
| Toluene | 0.8200 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2018 | 1/1 | SYR4 |
| Pfba | 0.0060 µg/L No EPA limit set Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2024 | 1/1 | UCMR-5 |
| Pfpea | 0.0040 µg/L No EPA limit set Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0030 µg/L No EPA limit set Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0017 mg/L 11% of the EPA limit 0.0150 mg/L Main supplier: NORTH READING WATER DEPT. · 16,379 people · 2025 | 1/1 | LCR |
Water suppliers serving North Reading
| Supplier | Population served |
|---|---|
| NORTH READING WATER DEPT. | 16,379 |
Frequently asked questions about North Reading tap water
Is North Reading tap water safe to drink?
EPA testing detected 19 contaminants in the water serving North Reading. 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 Reading?
1 public water supplier report drinking-water monitoring for North Reading, Massachusetts to the EPA. Each is listed above with its population served.
What contaminants are in North Reading's water?
The contaminants EPA monitoring detected in North Reading include Fluoride, Nitrate, TTHM, Chloroform, Barium. 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.