What was found in Mansfield'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 | 2815 µg/L 28% of the EPA limit 10000 µg/L Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Fluoride | 992 µg/L 25% of the EPA limit 4000 µg/L Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2017 | 1/1 | SYR4 |
| Copper | 120 µg/L 9.2% of the EPA limit 1300 µg/L Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| TTHM | 58.9 µg/L 74% of the EPA limit 80 µg/L Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Chloroform | 41.85 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 31.65 µg/L 53% of the EPA limit 60 µg/L Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 20.1 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 15.49 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 13.205 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 10.15 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 7.535 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Bromoform | 2.7 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.085 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| Carbon Tetrachloride | 1.3 µg/L 26% of the EPA limit 5 µg/L Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2019 | 1/1 | SYR4 |
| PFOS | 0.0062 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0043 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0038 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0031 µg/L No EPA limit set Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: MANSFIELD WATER DIVISION · 21,797 people · 2025 | 1/1 | LCR |
Water suppliers serving Mansfield
| Supplier | Population served |
|---|---|
| MANSFIELD WATER DIVISION | 21,797 |
Frequently asked questions about Mansfield tap water
Is Mansfield tap water safe to drink?
EPA testing detected 19 contaminants in the water serving Mansfield. 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 Mansfield?
1 public water supplier report drinking-water monitoring for Mansfield, Massachusetts to the EPA. Each is listed above with its population served.
What contaminants are in Mansfield's water?
The contaminants EPA monitoring detected in Mansfield 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.