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 | 2008-07-01 → 2008-07-31 |
| MCL | Health-based | Resolved | 2008-07-01 → 2008-07-31 |
| MCL | Health-based | Resolved | 2008-07-01 → 2008-07-31 |
| MCL | Health-based | Resolved | 1989-08-01 → 1989-10-31 |
| MCL | Health-based | Resolved | 1989-08-01 → 1989-10-31 |
| MR | Monitoring | Unaddressed | 2026-01-01 |
| MR | Monitoring | Unaddressed | 2025-07-01 |
| MR | Monitoring | Unaddressed | 2025-07-01 |
| MR | Monitoring | Unaddressed | 2024-10-01 |
| MR | Monitoring | Unaddressed | 2024-10-01 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 174.83 µg/L 13% of the EPA limit 1300 µg/L
worst single sample: 321.8 µg/L | 47/60 | SYR4 | 2012–2018 |
| Lead | 9.784 µg/L 65% of the EPA limit 15 µg/L
worst single sample: 147.4 µg/L | 37/60 | SYR4 | 2012–2018 |
| Dibromochloromethane | 4.16 µg/L No EPA limit set
worst single sample: 4.31 µg/L | 16/16 | SYR4 | 2012–2019 |
| TTHM | 26.685 µg/L 33% of the EPA limit 80 µg/L
worst single sample: 66.6 µg/L | 16/16 | SYR4 | 2012–2019 |
| Bromoform | 6.499 µg/L No EPA limit set
worst single sample: 7.92 µg/L | 15/16 | SYR4 | 2012–2019 |
| Bromodichloromethane | 6.131 µg/L No EPA limit set
worst single sample: 14.1 µg/L | 14/16 | SYR4 | 2012–2019 |
| Lead | 0.0019 mg/L 13% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2024 |
| Total Haloacetic Acids (HAA5) | 22.133 µg/L 37% of the EPA limit 60 µg/L
worst single sample: 37.55 µg/L | 10/16 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 13.4548 µg/L No EPA limit set
worst single sample: 19.849 µg/L | 8/16 | SYR4 | 2012–2019 |
| Chloroform | 36.685 µg/L No EPA limit set
worst single sample: 48.4 µg/L | 6/16 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.9575 µg/L No EPA limit set
worst single sample: 2.04 µg/L | 6/16 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 2.32 µg/L No EPA limit set | 1/16 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 15.385 µg/L No EPA limit set | 1/16 | SYR4 | 2012–2019 |
| Lithium | 9.12 µg/L No EPA limit set | 1/4 | UCMR-5 | 2024 |
24 contaminants tested, none detected
Utility contact
Frequently asked questions about Caldwell Water Dept
Is Caldwell Water Dept tap water safe to drink?
EPA monitoring detected 20 contaminants in Caldwell Water Dept'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 Caldwell Water Dept's water?
EPA monitoring detected Copper, Lead, Dibromochloromethane, TTHM, Bromoform, and others. The full list with the level and data source for each is above.
How many people does Caldwell Water Dept serve?
Caldwell Water Dept reports serving 9,027 people in New Jersey, per its EPA record.
Has Caldwell Water Dept had any water quality violations?
The EPA has 60 violations on file for Caldwell Water Dept, of which 5 are health-based (a contaminant limit or required treatment was breached) and 6 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.