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 | 2010-11-01 → 2010-11-30 |
| MCL | Health-based | Resolved | 2010-11-01 → 2010-11-30 |
| MCL | Health-based | Resolved | 2010-11-01 → 2010-11-30 |
| MCL | Health-based | Resolved | 2010-11-01 → 2010-11-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 166.75 µg/L 13% of the EPA limit 1300 µg/L
worst single sample: 637 µg/L | 80/80 | SYR4 | 2012–2018 |
| Lead | 5.2995 µg/L 35% of the EPA limit 15 µg/L
worst single sample: 12.4 µg/L | 48/80 | SYR4 | 2012–2018 |
| Lead | 0.0041 mg/L 27% of the EPA limit 0.0150 mg/L | 25/25 | LCR | 2024 |
| Barium | 99.63 µg/L 5% of the EPA limit 2000 µg/L
worst single sample: 104 µg/L | 20/20 | SYR4 | 2012–2018 |
| Combined Radium (-226 And -228) | 3.865 pCi/L 77% of the EPA limit 5 pCi/L
worst single sample: 5.1 pCi/L | 20/21 | SYR4 | 2012–2018 |
| Fluoride | 1101.5 µg/L 28% of the EPA limit 4000 µg/L
worst single sample: 1130 µg/L | 20/20 | SYR4 | 2012–2018 |
| Lithium | 40.1 µg/L No EPA limit set | 14/14 | UCMR-5 | 2023 |
| Nitrate-Nitrite | 11 µg/L 0.1% of the EPA limit 10000 µg/L | 8/108 | SYR4 | 2012–2019 |
| Bromodichloromethane | 1.629 µg/L No EPA limit set
worst single sample: 1.92 µg/L | 7/26 | SYR4 | 2012–2019 |
| Chloroform | 1.9325 µg/L No EPA limit set
worst single sample: 2.1 µg/L | 6/26 | SYR4 | 2012–2019 |
| Dibromochloromethane | 1.148 µg/L No EPA limit set
worst single sample: 1.26 µg/L | 5/26 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 17.135 pCi/L 114% of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 17.6 pCi/L | 4/4 | SYR4 | 2013–2014 |
| TTHM | 4.95 µg/L 6.2% of the EPA limit 80 µg/L
worst single sample: 5.28 µg/L | 4/7 | SYR4 | 2013–2019 |
| Combined Uranium | 1.65688 µg/L 5.5% of the EPA limit 30 µg/L
worst single sample: 1.6688 µg/L | 3/4 | SYR4 | 2013–2014 |
| Dichloroacetic Acid | 1.05 µg/L No EPA limit set | 2/7 | SYR4 | 2013–2019 |
| Chromium | 1.69 µg/L 1.7% of the EPA limit 100 µg/L | 1/20 | SYR4 | 2012–2018 |
85 contaminants tested, none detected
Utility contact
Frequently asked questions about Callaway County Pwsd 1
Is Callaway County Pwsd 1 tap water safe to drink?
EPA monitoring detected 16 contaminants in Callaway County Pwsd 1'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 Callaway County Pwsd 1's water?
EPA monitoring detected Copper, Lead, Lead, Barium, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.
How many people does Callaway County Pwsd 1 serve?
Callaway County Pwsd 1 reports serving 9,840 people in Missouri, per its EPA record.
Has Callaway County Pwsd 1 had any water quality violations?
The EPA has 4 violations on file for Callaway County Pwsd 1, of which 4 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.