Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Archived | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| TT | Health-based | Archived | 2025-07-01 → 2025-12-31 |
| TT | Health-based | Archived | 2025-07-01 → 2025-12-31 |
| TT | Health-based | Archived | 2025-01-01 → 2025-06-30 |
| TT | Health-based | Archived | 2025-01-01 → 2025-06-30 |
| TT | Health-based | Archived | 2025-01-01 → 2025-06-30 |
| MCL | Health-based | Resolved | 2024-07-01 → 2024-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 14025 µg/L 140% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 21000 µg/L | 70/70 | SYR4 | 2012–2019 |
| Copper | 1088 µg/L 84% of the EPA limit 1300 µg/L
worst single sample: 3000 µg/L | 43/43 | SYR4 | 2012–2019 |
| Lead | 0.0037 mg/L 25% of the EPA limit 0.0150 mg/L | 30/30 | LCR | 2026 |
| Lead | 15.225 µg/L 101% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 69.9 µg/L | 26/40 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 12.9615 pCi/L 259% of the EPA limit, at the 95th percentile of samples — 5 pCi/L
worst single sample: 20.7 pCi/L | 24/24 | SYR4 | 2012–2019 |
| Chloroform | 0.4800 µg/L No EPA limit set
worst single sample: 0.6000 µg/L | 9/24 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 41.43 pCi/L 276% of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 44.4 pCi/L | 7/7 | SYR4 | 2016–2017 |
| Bromodichloromethane | 0.7950 µg/L No EPA limit set
worst single sample: 0.9000 µg/L | 4/24 | SYR4 | 2012–2019 |
| Dibromochloromethane | 0.7400 µg/L No EPA limit set
worst single sample: 0.8000 µg/L | 4/24 | SYR4 | 2012–2019 |
| TTHM | 2.46 µg/L 3.1% of the EPA limit 80 µg/L
worst single sample: 2.7 µg/L | 4/9 | SYR4 | 2012–2019 |
| Barium | 239.87 µg/L 12% of the EPA limit 2000 µg/L
worst single sample: 260 µg/L | 3/3 | SYR4 | 2012–2018 |
| Arsenic | 2.288 µg/L 23% of the EPA limit 10 µg/L
worst single sample: 2.4 µg/L | 2/3 | SYR4 | 2012–2018 |
| Bromoform | 0.4000 µg/L No EPA limit set | 2/24 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.1765 µg/L No EPA limit set
worst single sample: 1.2 µg/L | 2/9 | SYR4 | 2012–2019 |
| Thallium, Total | 0.0970 µg/L 4.9% of the EPA limit 2 µg/L
worst single sample: 0.1000 µg/L | 2/3 | SYR4 | 2012–2018 |
| Total Haloacetic Acids (HAA5) | 1.1765 µg/L 2% of the EPA limit 60 µg/L
worst single sample: 1.2 µg/L | 2/9 | SYR4 | 2012–2019 |
| Benzene | 0.0600 µg/L 1.2% of the EPA limit 5 µg/L | 1/18 | SYR4 | 2012–2019 |
| Cadmium | 0.2000 µg/L 4% of the EPA limit 5 µg/L | 1/3 | SYR4 | 2012–2018 |
| Chromium | 1.7 µg/L 1.7% of the EPA limit 100 µg/L | 1/3 | SYR4 | 2012–2018 |
| Ethylene Dibromide | 0.0050 µg/L 10% of the EPA limit 0.0500 µg/L | 1/38 | SYR4 | 2012–2019 |
| Mercury | 0.0920 µg/L 4.6% of the EPA limit 2 µg/L | 1/3 | SYR4 | 2012–2018 |
| Selenium | 0.7400 µg/L 1.5% of the EPA limit 50 µg/L | 1/3 | SYR4 | 2012–2018 |
| Xylenes, Total | 0.5400 µg/L 0% of the EPA limit 10000 µg/L | 1/18 | SYR4 | 2012–2019 |
29 contaminants tested, none detected
Utility contact
Frequently asked questions about Big Oak Rehab
Is Big Oak Rehab tap water safe to drink?
EPA monitoring detected 23 contaminants in Big Oak Rehab's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Big Oak Rehab's water?
EPA monitoring detected Nitrate, Copper, Lead, Lead, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.
How many people does Big Oak Rehab serve?
Big Oak Rehab reports serving 259 people in New Jersey, per its EPA record.
Has Big Oak Rehab had any water quality violations?
The EPA has 313 violations on file for Big Oak Rehab, of which 176 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
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.