What was found in Middleton'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 |
|---|---|---|---|
| TTHM | 93.195 µg/L 116% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Chloroform | 68.895 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 46.01 µg/L 77% of the EPA limit 60 µg/L Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 23.415 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 20.3 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 20.005 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 6.7765 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.51 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.741 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.1295 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Bromoform | 0.8110 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2019 | 1/1 | SYR4 |
| Pfpea | 0.0114 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0071 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2024 | 1/1 | UCMR-5 |
| Pfhpa | 0.0060 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2024 | 1/1 | UCMR-5 |
| PFOA | 0.0045 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2024 | 1/1 | UCMR-5 |
| PFBS | 0.0030 µg/L No EPA limit set Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: MIDDLETON WATER DEPT. · 7,291 people · 2024 | 1/1 | LCR |
Water suppliers serving Middleton
| Supplier | Population served |
|---|---|
| MIDDLETON WATER DEPT. | 7,291 |
Frequently asked questions about Middleton tap water
Is Middleton tap water safe to drink?
EPA testing detected 17 contaminants in the water serving Middleton. 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 Middleton?
1 public water supplier report drinking-water monitoring for Middleton, Massachusetts to the EPA. Each is listed above with its population served.
What contaminants are in Middleton's water?
The contaminants EPA monitoring detected in Middleton include TTHM, Chloroform, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, Trichloroacetic Acid. 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.