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 |
|---|---|---|---|
| MR | Monitoring | Resolved | 2024-04-01 → 2024-06-30 |
| MR | Monitoring | Resolved | 2024-04-01 → 2024-06-30 |
| MR | Monitoring | Resolved | 2024-04-01 → 2024-06-30 |
| MR | Monitoring | Resolved | 2024-04-01 → 2024-06-30 |
| MR | Monitoring | Resolved | 2024-04-01 → 2024-06-30 |
| MR | Monitoring | Resolved | 2024-04-01 → 2024-06-30 |
| MR | Monitoring | Resolved | 2024-04-01 → 2024-06-30 |
| MR | Monitoring | Resolved | 2024-04-01 → 2024-06-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 13.1 µg/L No EPA limit set | 62/62 | SYR4 | 2012–2019 |
| Chloroform | 115 µg/L No EPA limit set | 62/62 | SYR4 | 2012–2019 |
| TTHM | 119 µg/L 149% of the EPA limit, in the worst sample — 80 µg/L | 62/62 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 58.7 µg/L No EPA limit set | 60/62 | SYR4 | 2012–2019 |
| Copper | 112 µg/L 8.6% of the EPA limit 1300 µg/L | 59/60 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 8.41 µg/L No EPA limit set | 56/62 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 70.7 µg/L 118% of the EPA limit, in the worst sample — 60 µg/L | 55/62 | SYR4 | 2012–2019 |
| Dibromochloromethane | 4.71 µg/L No EPA limit set | 46/62 | SYR4 | 2012–2019 |
| Lead | 0.0039 mg/L 26% of the EPA limit 0.0150 mg/L | 22/22 | LCR | 2025 |
| Lead | 23.8 µg/L 159% of the EPA limit, in the worst sample — 15 µg/L | 20/60 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 3.58 µg/L No EPA limit set | 6/62 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 4.12 µg/L No EPA limit set | 1/62 | SYR4 | 2012–2019 |
32 contaminants tested, none detected
Utility contact
Frequently asked questions about Jefferson County Pwsd 10
Is Jefferson County Pwsd 10 tap water safe to drink?
EPA monitoring detected 12 contaminants in Jefferson County Pwsd 10'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 Jefferson County Pwsd 10's water?
EPA monitoring detected Bromodichloromethane, Chloroform, TTHM, Dichloroacetic Acid, Copper, and others. The full list with the level and data source for each is above.
How many people does Jefferson County Pwsd 10 serve?
Jefferson County Pwsd 10 reports serving 10,000 people in Missouri, per its EPA record.
Has Jefferson County Pwsd 10 had any water quality violations?
The EPA has 8 violations on file for Jefferson County Pwsd 10, of which 0 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.