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 | 1999-07-01 → 1999-07-31 |
| MCL | Health-based | Resolved | 1999-07-01 → 1999-07-31 |
| MCL | Health-based | Resolved | 1998-05-01 → 1998-05-31 |
| MCL | Health-based | Resolved | 1998-05-01 → 1998-05-31 |
| MCL | Health-based | Resolved | 1997-01-01 → 1997-01-31 |
| MCL | Health-based | Resolved | 1997-01-01 → 1997-01-31 |
| MCL | Health-based | Resolved | 1992-05-01 → 1992-05-31 |
| MCL | Health-based | Resolved | 1992-05-01 → 1992-05-31 |
| MR | Monitoring | Resolved | 2016-01-01 → 2016-12-31 |
| MR | Monitoring | Resolved | 2016-01-01 → 2016-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 17/17 | LCR | 2025 |
| Barium | 8.825 µg/L 0.4% of the EPA limit 2000 µg/L
worst single sample: 8.9 µg/L | 6/6 | SYR4 | 2014–2017 |
| Fluoride | 140 µg/L 3.5% of the EPA limit 4000 µg/L | 5/6 | SYR4 | 2014–2017 |
| Arsenic | 1.54 µg/L 15% of the EPA limit 10 µg/L
worst single sample: 1.6 µg/L | 4/6 | SYR4 | 2014–2017 |
| Bromodichloromethane | 4.6 µg/L No EPA limit set | 4/4 | SYR4 | 2014–2019 |
| Chloroform | 3.425 µg/L No EPA limit set
worst single sample: 3.5 µg/L | 4/4 | SYR4 | 2014–2019 |
| Combined Uranium | 8.8804 µg/L 30% of the EPA limit 30 µg/L
worst single sample: 10.132 µg/L | 4/4 | SYR4 | 2012–2017 |
| Dibromochloromethane | 4.325 µg/L No EPA limit set
worst single sample: 4.4 µg/L | 4/4 | SYR4 | 2014–2019 |
| Dichloroacetic Acid | 1.2 µg/L No EPA limit set | 4/4 | SYR4 | 2014–2019 |
| TTHM | 13 µg/L 16% of the EPA limit 80 µg/L | 4/4 | SYR4 | 2014–2019 |
| Total Haloacetic Acids (HAA5) | 4.395 µg/L 7.3% of the EPA limit 60 µg/L
worst single sample: 4.5 µg/L | 4/4 | SYR4 | 2014–2019 |
| Bromoform | 0.9860 µg/L No EPA limit set
worst single sample: 1 µg/L | 3/4 | SYR4 | 2014–2019 |
| Dibromoacetic Acid | 2.01 µg/L No EPA limit set
worst single sample: 2.1 µg/L | 3/4 | SYR4 | 2014–2019 |
| Monobromoacetic Acid | 1.4 µg/L No EPA limit set | 3/4 | SYR4 | 2014–2019 |
| Chromium | 1.2 µg/L 1.2% of the EPA limit 100 µg/L | 1/6 | SYR4 | 2014–2017 |
38 contaminants tested, none detected
Utility contact
Frequently asked questions about Madera Co sa1-indian Lakes
Is Madera Co sa1-indian Lakes tap water safe to drink?
EPA monitoring detected 15 contaminants in Madera Co sa1-indian Lakes'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 Madera Co sa1-indian Lakes's water?
EPA monitoring detected Lead, Barium, Fluoride, Arsenic, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Madera Co sa1-indian Lakes serve?
Madera Co sa1-indian Lakes reports serving 1,562 people in California, per its EPA record.
Has Madera Co sa1-indian Lakes had any water quality violations?
The EPA has 22 violations on file for Madera Co sa1-indian Lakes, of which 8 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.