What was found in Montclair town-0713'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 | 4984.5 µg/L 50% of the EPA limit 10000 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 2720 µg/L 27% of the EPA limit 10000 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2012 | 1/1 | SYR4 |
| Barium | 582.2 µg/L 29% of the EPA limit 2000 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2017 | 1/1 | SYR4 |
| Copper | 99.72 µg/L 7.7% of the EPA limit 1300 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| TTHM | 72.37 µg/L 90% of the EPA limit 80 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Chloroform | 56.955 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 45.285 µg/L 75% of the EPA limit 60 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 23.285 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 22.365 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Lead | 13.965 µg/L 93% of the EPA limit 15 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 13.28 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 12.899 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 5.418 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 5.2095 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.575 pCi/L 31% of the EPA limit 15 pCi/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2014 | 1/1 | SYR4 |
| Tetrachloroethylene | 2.8 µg/L 56% of the EPA limit 5 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 2.6275 µg/L 8.8% of the EPA limit 30 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2014 | 1/1 | SYR4 |
| Arsenic | 2.559 µg/L 26% of the EPA limit 10 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2017 | 1/1 | SYR4 |
| Bromoform | 1.74 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Selenium | 1.74 µg/L 3.5% of the EPA limit 50 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2017 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.4955 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2019 | 1/1 | SYR4 |
| Mercury | 0.0746 µg/L 3.7% of the EPA limit 2 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2014 | 1/1 | SYR4 |
| Beryllium, Total | 0.0520 µg/L 1.3% of the EPA limit 4 µg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2017 | 1/1 | SYR4 |
| Pfpea | 0.0130 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2025 | 1/1 | UCMR-5 |
| Pfba | 0.0086 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0068 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2025 | 1/1 | UCMR-5 |
| PFOS | 0.0040 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0030 µg/L No EPA limit set Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: MONTCLAIR WATER BUREAU · 40,150 people · 2025 | 1/1 | LCR |
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 Montclair town-0713
| Supplier | Population served |
|---|---|
| MONTCLAIR WATER BUREAU | 40,150 |
Frequently asked questions about Montclair town-0713 tap water
Is Montclair town-0713 tap water safe to drink?
EPA testing detected 29 contaminants in the water serving Montclair town-0713. 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 Montclair town-0713?
1 public water supplier report drinking-water monitoring for Montclair town-0713, New Jersey to the EPA. Each is listed above with its population served.
What contaminants are in Montclair town-0713's water?
The contaminants EPA monitoring detected in Montclair town-0713 include Nitrate, Nitrate-Nitrite, 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.