Compliance record
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Fluoride | 730 µg/L 18% of the EPA limit 4000 µg/L
worst single sample: 770 µg/L | 87/87 | SYR4 | 2012–2019 |
| Chloroform | 12.495 µg/L No EPA limit set
worst single sample: 37.3 µg/L | 54/54 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 8.935 µg/L No EPA limit set
worst single sample: 17.9 µg/L | 54/54 | SYR4 | 2012–2019 |
| TTHM | 21.225 µg/L 27% of the EPA limit 80 µg/L
worst single sample: 60.8 µg/L | 54/54 | SYR4 | 2012–2019 |
| Bromodichloromethane | 6.9 µg/L No EPA limit set
worst single sample: 15.6 µg/L | 53/54 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 11.48 µg/L 19% of the EPA limit 60 µg/L
worst single sample: 32.4 µg/L | 53/54 | SYR4 | 2012–2019 |
| Copper | 144 µg/L 11% of the EPA limit 1300 µg/L
worst single sample: 322 µg/L | 51/94 | SYR4 | 2012–2019 |
| Lead | 4 µg/L 27% of the EPA limit 15 µg/L
worst single sample: 6 µg/L | 42/94 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 5.74 µg/L No EPA limit set
worst single sample: 11.3 µg/L | 33/54 | SYR4 | 2012–2019 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L | 22/22 | LCR | 2025 |
| Monobromoacetic Acid | 2.49 µg/L No EPA limit set
worst single sample: 2.5 µg/L | 22/54 | SYR4 | 2012–2019 |
| Dibromochloromethane | 6.775 µg/L No EPA limit set
worst single sample: 7.2 µg/L | 18/54 | SYR4 | 2012–2019 |
| Nitrate | 680 µg/L 6.8% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 627.5 µg/L 6.3% of the EPA limit 10000 µg/L
worst single sample: 680 µg/L | 8/8 | SYR4 | 2012–2019 |
| Chromium | 1.1 µg/L 1.1% of the EPA limit 100 µg/L | 4/8 | SYR4 | 2012–2017 |
| Barium | 100 µg/L 5% of the EPA limit 2000 µg/L | 2/4 | SYR4 | 2012–2017 |
| Bromoform | 0.6900 µg/L No EPA limit set
worst single sample: 0.7000 µg/L | 2/54 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2.095 µg/L No EPA limit set
worst single sample: 2.1 µg/L | 2/54 | SYR4 | 2012–2019 |
| Lithium | 114 µg/L No EPA limit set | 2/2 | UCMR-5 | 2024 |
88 contaminants tested, none detected
Utility contact
Frequently asked questions about Mo American St Joseph
Is Mo American St Joseph tap water safe to drink?
EPA monitoring detected 19 contaminants in Mo American St Joseph'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 Mo American St Joseph's water?
EPA monitoring detected Fluoride, Chloroform, Dichloroacetic Acid, TTHM, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Mo American St Joseph serve?
Mo American St Joseph reports serving 89,171 people in Missouri, per its EPA record.
Has Mo American St Joseph had any water quality violations?
The EPA has no formal drinking-water violations on file for Mo American St Joseph.
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.