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 | 2011-12-07 |
| TT | Health-based | Resolved | 2011-12-07 |
| TT | Health-based | Resolved | 2011-12-07 |
| TT | Health-based | Resolved | 2011-12-07 |
| TT | Health-based | Resolved | 1997-01-01 → 2002-05-10 |
| MON | Monitoring | Resolved | 2021-11-01 → 2021-11-30 |
| MON | Monitoring | Resolved | 2021-11-01 → 2021-11-30 |
| MON | Monitoring | Resolved | 2021-11-01 → 2021-11-30 |
| MR | Monitoring | Resolved | 2016-12-30 |
| MR | Monitoring | Resolved | 2016-12-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 5000 µg/L 50% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L | 9/9 | LCR | 2025 |
| Arsenic | 7.6 µg/L 76% of the EPA limit 10 µg/L | 3/3 | SYR4 | 2013–2019 |
| Combined Uranium | 7 µg/L 23% of the EPA limit 30 µg/L | 2/2 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 1.55 pCi/L 31% of the EPA limit 5 pCi/L | 1/3 | SYR4 | 2013–2019 |
| Fluoride | 330 µg/L 8.3% of the EPA limit 4000 µg/L | 1/1 | SYR4 | 2019 |
| Nitrate-Nitrite | 4300 µg/L 43% of the EPA limit 10000 µg/L | 1/1 | SYR4 | 2019 |
60 contaminants tested, none detected
Utility contact
Frequently asked questions about Twin Bridges Subd
Is Twin Bridges Subd tap water safe to drink?
EPA monitoring detected 7 contaminants in Twin Bridges 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 Twin Bridges Subd's water?
EPA monitoring detected Nitrate, Lead, Arsenic, Combined Uranium, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.
How many people does Twin Bridges Subd serve?
Twin Bridges Subd reports serving 28 people in Idaho, per its EPA record.
Has Twin Bridges Subd had any water quality violations?
The EPA has 45 violations on file for Twin Bridges Subd, of which 5 are health-based (a contaminant limit or required treatment was breached) and 1 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.