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 | 2023-07-26 |
| TT | Health-based | Resolved | 2023-07-26 |
| TT | Health-based | Resolved | 2023-07-26 |
| TT | Health-based | Resolved | 2023-07-26 |
| TT | Health-based | Resolved | 2023-07-26 |
| TT | Health-based | Resolved | 2020-07-17 |
| TT | Health-based | Resolved | 2020-07-17 |
| TT | Health-based | Resolved | 2020-07-17 |
| TT | Health-based | Resolved | 2020-07-17 |
| TT | Health-based | Resolved | 2010-07-29 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 7500 µg/L 75% of the EPA limit 10000 µg/L | 22/22 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 8/8 | LCR | 2025 |
| Combined Uranium | 7 µg/L 23% of the EPA limit 30 µg/L | 2/2 | SYR4 | 2013–2019 |
| Arsenic | 15 µg/L 150% of the EPA limit, in the worst sample — 10 µg/L | 1/17 | SYR4 | 2012–2019 |
| Fluoride | 430 µg/L 11% of the EPA limit 4000 µg/L | 1/1 | SYR4 | 2019 |
| Nitrate-Nitrite | 6400 µg/L 64% of the EPA limit 10000 µg/L | 1/1 | SYR4 | 2019 |
61 contaminants tested, none detected
Utility contact
Frequently asked questions about Locust Subd
Is Locust Subd tap water safe to drink?
EPA monitoring detected 6 contaminants in Locust Subd'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 Locust Subd's water?
EPA monitoring detected Nitrate, Lead, Combined Uranium, Arsenic, Fluoride, and others. The full list with the level and data source for each is above.
How many people does Locust Subd serve?
Locust Subd reports serving 42 people in Idaho, per its EPA record.
Has Locust Subd had any water quality violations?
The EPA has 75 violations on file for Locust Subd, of which 42 are health-based (a contaminant limit or required treatment was breached) and 5 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.