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 | Resolved | 2025-10-01 → 2025-10-31 |
| MCL | Health-based | Resolved | 2025-10-01 → 2025-10-31 |
| MCL | Health-based | Resolved | 2025-10-01 → 2025-10-31 |
| MCL | Health-based | Resolved | 2025-10-01 → 2025-10-31 |
| MCL | Health-based | Resolved | 2025-10-01 → 2025-10-31 |
| TT | Health-based | Resolved | 2019-10-18 |
| TT | Health-based | Resolved | 2019-10-18 |
| TT | Health-based | Resolved | 2019-10-18 |
| TT | Health-based | Resolved | 2019-10-18 |
| MCL | Health-based | Resolved | 2015-11-01 → 2015-11-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Lead | 0.0022 mg/L 15% of the EPA limit 0.0150 mg/L | 29/29 | LCR | 2025 |
| Copper | 128.95 µg/L 9.9% of the EPA limit 1300 µg/L
worst single sample: 293 µg/L | 18/21 | SYR4 | 2012–2019 |
| Nitrate | 1880 µg/L 19% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Lead | 7.395 µg/L 49% of the EPA limit 15 µg/L
worst single sample: 13.7 µg/L | 14/20 | SYR4 | 2012–2019 |
| Fluoride | 249.9 µg/L 6.2% of the EPA limit 4000 µg/L
worst single sample: 251 µg/L | 3/3 | SYR4 | 2012–2015 |
| Barium | 43.24 µg/L 2.2% of the EPA limit 2000 µg/L
worst single sample: 44 µg/L | 2/2 | SYR4 | 2012–2015 |
| Chromium | 0.1000 µg/L 0.1% of the EPA limit 100 µg/L | 1/2 | SYR4 | 2012–2015 |
| Combined Radium (-226 And -228) | 1.43 pCi/L 29% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2012 |
| Nitrate-Nitrite | 1590 µg/L 16% of the EPA limit 10000 µg/L | 1/1 | SYR4 | 2015 |
| Selenium | 0.5900 µg/L 1.2% of the EPA limit 50 µg/L | 1/2 | SYR4 | 2012–2015 |
35 contaminants tested, none detected
Utility contact
Frequently asked questions about Highlander Hills Estates
Is Highlander Hills Estates tap water safe to drink?
EPA monitoring detected 10 contaminants in Highlander Hills Estates'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 Highlander Hills Estates's water?
EPA monitoring detected Lead, Copper, Nitrate, Lead, Fluoride, and others. The full list with the level and data source for each is above.
How many people does Highlander Hills Estates serve?
Highlander Hills Estates reports serving 120 people in New Jersey, per its EPA record.
Has Highlander Hills Estates had any water quality violations?
The EPA has 271 violations on file for Highlander Hills Estates, of which 47 are health-based (a contaminant limit or required treatment was breached) and 5 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.