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 | Archived | 2014-10-01 → 2014-10-31 |
| MCL | Health-based | Archived | 2014-10-01 → 2014-10-31 |
| MCL | Health-based | Archived | 2014-10-01 → 2014-10-31 |
| MCL | Health-based | Resolved | 2011-10-01 → 2011-12-31 |
| MCL | Health-based | Resolved | 2011-10-01 → 2011-12-31 |
| MCL | Health-based | Resolved | 2011-10-01 → 2011-12-31 |
| MCL | Health-based | Resolved | 2011-10-01 → 2011-12-31 |
| MCL | Health-based | Resolved | 2011-07-01 → 2011-09-30 |
| MCL | Health-based | Resolved | 2011-07-01 → 2011-09-30 |
| MCL | Health-based | Resolved | 2011-07-01 → 2011-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 5625 µg/L 56% of the EPA limit 10000 µg/L
worst single sample: 5800 µg/L | 28/28 | SYR4 | 2012–2019 |
| Combined Uranium | 76 µg/L 253% of the EPA limit, at the 95th percentile of samples — 30 µg/L | 14/95 | SYR4 | 2012–2019 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L | 10/10 | LCR | 2025 |
| Gross Alpha, Excl. Radon And U | 23.825 pCi/L 159% of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 26.4 pCi/L | 6/7 | SYR4 | 2018–2019 |
| Arsenic | 4.66 µg/L 47% of the EPA limit 10 µg/L
worst single sample: 4.7 µg/L | 3/3 | SYR4 | 2013–2019 |
| Barium | 100 µg/L 5% of the EPA limit 2000 µg/L | 1/1 | SYR4 | 2019 |
| Fluoride | 170 µg/L 4.3% of the EPA limit 4000 µg/L | 1/1 | SYR4 | 2019 |
| Nitrate-Nitrite | 5800 µg/L 58% of the EPA limit 10000 µg/L | 1/1 | SYR4 | 2019 |
59 contaminants tested, none detected
Utility contact
Frequently asked questions about Sunlight Terrace
Is Sunlight Terrace tap water safe to drink?
EPA monitoring detected 8 contaminants in Sunlight Terrace'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 Sunlight Terrace's water?
EPA monitoring detected Nitrate, Combined Uranium, Lead, Gross Alpha, Excl. Radon And U, Arsenic, and others. The full list with the level and data source for each is above.
How many people does Sunlight Terrace serve?
Sunlight Terrace reports serving 234 people in Idaho, per its EPA record.
Has Sunlight Terrace had any water quality violations?
The EPA has 86 violations on file for Sunlight Terrace, of which 45 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.