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 | Resolved | 2011-02-01 → 2011-02-28 |
| MR | Monitoring | Resolved | 2025-04-01 → 2025-06-30 |
| MR | Monitoring | Resolved | 2025-01-01 → 2025-03-31 |
| MR | Monitoring | Archived | 2025-01-01 → 2025-12-31 |
| MR | Monitoring | Archived | 2025-01-01 → 2025-12-31 |
| MR | Monitoring | Resolved | 2023-12-01 |
| MR | Monitoring | Archived | 2023-01-01 → 2023-12-31 |
| Other | Monitoring | Resolved | 2022-07-01 |
| Other | Monitoring | Resolved | 2021-07-01 |
| Other | Monitoring | Resolved | 2019-07-01 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 360 µg/L 3.6% of the EPA limit 10000 µg/L | 26/36 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 1.925 pCi/L 39% of the EPA limit 5 pCi/L | 11/11 | SYR4 | 2013–2019 |
| Lead | 0.00050 mg/L 3.3% of the EPA limit 0.0150 mg/L | 9/9 | LCR | 2019 |
| Combined Uranium | 2.235 µg/L 7.5% of the EPA limit 30 µg/L | 8/12 | SYR4 | 2013–2019 |
| Gross Alpha, Excl. Radon And U | 1.5 pCi/L 10% of the EPA limit 15 pCi/L | 8/12 | SYR4 | 2013–2019 |
| Barium | 8.7 µg/L 0.4% of the EPA limit 2000 µg/L | 6/6 | SYR4 | 2013–2019 |
| Fluoride | 170 µg/L 4.3% of the EPA limit 4000 µg/L | 6/6 | SYR4 | 2013–2019 |
| Chromium | 1.2 µg/L 1.2% of the EPA limit 100 µg/L | 1/6 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 4 pCi/L No EPA limit set | 1/8 | SYR4 | 2013–2016 |
62 contaminants tested, none detected
Utility contact
Frequently asked questions about Masefau Asg
Is Masefau Asg tap water safe to drink?
EPA monitoring detected 9 contaminants in Masefau Asg'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 Masefau Asg's water?
EPA monitoring detected Nitrate, Combined Radium (-226 And -228), Lead, Combined Uranium, Gross Alpha, Excl. Radon And U, and others. The full list with the level and data source for each is above.
How many people does Masefau Asg serve?
Masefau Asg reports serving 457 people in AS, per its EPA record.
Has Masefau Asg had any water quality violations?
The EPA has 31 violations on file for Masefau Asg, of which 1 is 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.