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 | 2000-12-01 → 2000-12-31 |
| MCL | Health-based | Resolved | 2000-12-01 → 2000-12-31 |
| MCL | Health-based | Resolved | 2000-12-01 → 2000-12-31 |
| MCL | Health-based | Resolved | 2000-12-01 → 2000-12-31 |
| MCL | Health-based | Resolved | 2000-12-01 → 2000-12-31 |
| MCL | Health-based | Resolved | 2000-12-01 → 2000-12-31 |
| RPT | Monitoring | Resolved | 2025-07-02 |
| RPT | Monitoring | Resolved | 2025-07-02 |
| MR | Monitoring | Resolved | 2021-01-01 |
| MR | Monitoring | Archived | 1996-11-01 → 1996-11-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 281.2 µg/L 22% of the EPA limit 1300 µg/L
worst single sample: 967 µg/L | 40/40 | SYR4 | 2014–2017 |
| Lead | 6.87 µg/L 46% of the EPA limit 15 µg/L
worst single sample: 32.1 µg/L | 40/40 | SYR4 | 2014–2017 |
| Fluoride | 1340 µg/L 34% of the EPA limit 4000 µg/L
worst single sample: 1400 µg/L | 33/33 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1590 µg/L 16% of the EPA limit 10000 µg/L
worst single sample: 1600 µg/L | 22/32 | SYR4 | 2012–2019 |
| Bromodichloromethane | 12 µg/L No EPA limit set | 17/17 | SYR4 | 2012–2019 |
| Chloroform | 30.6 µg/L No EPA limit set
worst single sample: 41 µg/L | 17/17 | SYR4 | 2012–2019 |
| Dibromochloromethane | 4.04 µg/L No EPA limit set
worst single sample: 5 µg/L | 17/17 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 9.55 µg/L No EPA limit set
worst single sample: 13 µg/L | 11/11 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 12.985 µg/L No EPA limit set
worst single sample: 16 µg/L | 10/11 | SYR4 | 2012–2019 |
| Lead | 0.0050 mg/L 33% of the EPA limit 0.0150 mg/L | 7/7 | LCR | 2023 |
| Barium | 75.22 µg/L 3.8% of the EPA limit 2000 µg/L
worst single sample: 75.7 µg/L | 2/2 | SYR4 | 2013–2019 |
| Dichloromethane | 2.5 µg/L 50% of the EPA limit 5 µg/L | 1/5 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 1.2 µg/L No EPA limit set | 1/11 | SYR4 | 2012–2019 |
| Mercury | 0.1030 µg/L 5.1% of the EPA limit 2 µg/L | 1/2 | SYR4 | 2013–2019 |
87 contaminants tested, none detected
Utility contact
Frequently asked questions about Saint Joseph
Is Saint Joseph tap water safe to drink?
EPA monitoring detected 14 contaminants in Saint 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 Saint Joseph's water?
EPA monitoring detected Copper, Lead, Fluoride, Nitrate-Nitrite, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Saint Joseph serve?
Saint Joseph reports serving 7,100 people in Minnesota, per its EPA record.
Has Saint Joseph had any water quality violations?
The EPA has 18 violations on file for Saint Joseph, of which 6 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.