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 |
|---|---|---|---|
| MON | Monitoring | Resolved | 2018-07-01 → 2018-07-31 |
| MON | Monitoring | Resolved | 2018-07-01 → 2018-07-31 |
| MON | Monitoring | Resolved | 2018-07-01 → 2018-07-31 |
| MON | Monitoring | Resolved | 2018-07-01 → 2018-07-31 |
PFAS detected
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| Pfba | 0.0092 µg/L | 2/4 | 2025 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Dichloroacetic Acid | 38 µg/L No EPA limit set | 52/52 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 63 µg/L 105% of the EPA limit, in the worst sample — 60 µg/L | 52/52 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 27 µg/L No EPA limit set | 52/52 | SYR4 | 2013–2019 |
| Bromodichloromethane | 20 µg/L No EPA limit set | 51/52 | SYR4 | 2013–2019 |
| Chloroform | 77 µg/L No EPA limit set | 51/52 | SYR4 | 2013–2019 |
| Dibromochloromethane | 3.6 µg/L No EPA limit set | 51/52 | SYR4 | 2013–2019 |
| TTHM | 99 µg/L 124% of the EPA limit, in the worst sample — 80 µg/L | 51/52 | SYR4 | 2013–2019 |
| Copper | 220 µg/L 17% of the EPA limit 1300 µg/L | 20/20 | SYR4 | 2014–2017 |
| Monochloroacetic Acid | 6 µg/L No EPA limit set | 20/52 | SYR4 | 2013–2019 |
| Lead | 16 µg/L 107% of the EPA limit, in the worst sample — 15 µg/L | 15/20 | SYR4 | 2014–2017 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2023 |
| Lithium | 11 µg/L No EPA limit set | 4/4 | UCMR-5 | 2025 |
| Monobromoacetic Acid | 1 µg/L No EPA limit set | 1/52 | SYR4 | 2013–2019 |
30 contaminants tested, none detected
Utility contact
Frequently asked questions about Okoboji Water Supply
Is Okoboji Water Supply tap water safe to drink?
EPA monitoring detected 14 contaminants in Okoboji Water Supply'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 Okoboji Water Supply's water?
EPA monitoring detected Dichloroacetic Acid, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.
How many people does Okoboji Water Supply serve?
Okoboji Water Supply reports serving 776 people in Iowa, per its EPA record.
Has Okoboji Water Supply had any water quality violations?
The EPA has 4 violations on file for Okoboji Water Supply, 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.