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 |
|---|---|---|---|
| TT | Health-based | Resolved | 2013-05-14 |
| TT | Health-based | Resolved | 2013-05-14 |
| MCL | Health-based | Resolved | 2000-09-01 → 2000-09-30 |
| MCL | Health-based | Resolved | 2000-09-01 → 2000-09-30 |
| MCL | Health-based | Resolved | 2000-09-01 → 2000-09-30 |
| MCL | Health-based | Resolved | 1998-06-01 → 1998-06-30 |
| MCL | Health-based | Resolved | 1998-06-01 → 1998-06-30 |
| MCL | Health-based | Resolved | 1998-06-01 → 1998-06-30 |
| MCL | Health-based | Resolved | 1998-06-01 → 1998-06-30 |
| MCL | Health-based | Resolved | 1998-06-01 → 1998-06-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 159 µg/L 12% of the EPA limit 1300 µg/L
worst single sample: 180 µg/L | 15/15 | SYR4 | 2012–2018 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2024 |
| Lead | 1.73 µg/L 12% of the EPA limit 15 µg/L
worst single sample: 1.8 µg/L | 15/15 | SYR4 | 2012–2018 |
| TTHM | 69.59 µg/L 87% of the EPA limit 80 µg/L
worst single sample: 71.3 µg/L | 7/7 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 39.91 µg/L 67% of the EPA limit 60 µg/L
worst single sample: 42.1 µg/L | 7/7 | SYR4 | 2013–2019 |
Utility contact
Frequently asked questions about Wolsey
Is Wolsey tap water safe to drink?
EPA monitoring detected 5 contaminants in Wolsey'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 Wolsey's water?
EPA monitoring detected Copper, Lead, Lead, TTHM, Total Haloacetic Acids (HAA5). The full list with the level and data source for each is above.
How many people does Wolsey serve?
Wolsey reports serving 459 people in South Dakota, per its EPA record.
Has Wolsey had any water quality violations?
The EPA has 84 violations on file for Wolsey, of which 15 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.