What was found in Mount Holly twp.-0323'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 |
|---|---|---|---|
| Copper | 456.25 µg/L 35% of the EPA limit 1300 µg/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Fluoride | 287.75 µg/L 7.2% of the EPA limit 4000 µg/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2017 | 1/1 | SYR4 |
| Barium | 100 µg/L 5% of the EPA limit 2000 µg/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2017 | 1/1 | SYR4 |
| Lead | 29.2 µg/L 195% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| TTHM | 20.6 µg/L 26% of the EPA limit 80 µg/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 10.84 µg/L 18% of the EPA limit 60 µg/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Nitrate | 10 µg/L 0.1% of the EPA limit 10000 µg/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 10 µg/L 0.1% of the EPA limit 10000 µg/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Chloroform | 9.96 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 5.9 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 5.63 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 5.6 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 3.72 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 3.64 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.4 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.297 pCi/L 22% of the EPA limit 15 pCi/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2014 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.615 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.665 pCi/L 33% of the EPA limit 5 pCi/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2014 | 1/1 | SYR4 |
| Bromoform | 1.41 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2019 | 1/1 | SYR4 |
| Pfhxa | 0.0051 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2024 | 1/1 | UCMR-5 |
| Pfpea | 0.0051 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2024 | 1/1 | UCMR-5 |
| PFOA | 0.0048 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2024 | 1/1 | UCMR-5 |
| PFOS | 0.0042 µg/L No EPA limit set Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: NJ AMERICAN WATER - MOUNT HOLLY · 47,427 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 Mount Holly twp.-0323
| Supplier | Population served |
|---|---|
| NJ AMERICAN WATER - MOUNT HOLLY | 47,427 |
Frequently asked questions about Mount Holly twp.-0323 tap water
Is Mount Holly twp.-0323 tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Mount Holly twp.-0323. 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 Mount Holly twp.-0323?
1 public water supplier report drinking-water monitoring for Mount Holly twp.-0323, New Jersey to the EPA. Each is listed above with its population served.
What contaminants are in Mount Holly twp.-0323's water?
The contaminants EPA monitoring detected in Mount Holly twp.-0323 include Copper, Fluoride, Barium, Lead, 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.