What was found in ZIP 01742
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 2354.5 µg/L 24% of the EPA limit 10000 µg/L Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Fluoride | 1100 µg/L 28% of the EPA limit 4000 µg/L Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| TTHM | 49.66 µg/L 62% of the EPA limit 80 µg/L Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Chloroform | 36.955 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Barium | 36.7 µg/L 1.8% of the EPA limit 2000 µg/L Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 28 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 26.5 µg/L 44% of the EPA limit 60 µg/L Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 11.458 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Bromate | 11.4 µg/L 114% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 11 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 11 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Bromoform | 6.452 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 4.25 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 4.11 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| Copper | 2.69 µg/L 0.2% of the EPA limit 1300 µg/L Main supplier: CONCORD WATER DEPT · 18,788 people · 2013 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.17 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2019 | 1/1 | SYR4 |
| PFBS | 0.0094 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2024 | 1/1 | UCMR-5 |
| Pfpea | 0.0062 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2024 | 1/1 | UCMR-5 |
| PFOA | 0.0060 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0051 mg/L 34% of the EPA limit 0.0150 mg/L Main supplier: CONCORD WATER DEPT · 18,788 people · 2023 | 1/1 | LCR |
| Pfhxa | 0.0045 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 18,788 people · 2024 | 1/1 | 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.
Water suppliers serving ZIP 01742
| Supplier | State | Population served |
|---|---|---|
| CONCORD WATER DEPT | MA | 18,788 |
Frequently asked questions about ZIP 01742 tap water
Is the tap water in ZIP 01742 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 01742. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 01742?
1 public water supplier report EPA drinking-water monitoring for ZIP 01742. Each is listed above with its population served.
What contaminants are in ZIP 01742's water?
EPA monitoring detected Nitrate, Fluoride, TTHM, Chloroform, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.