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 | 2022-01-01 → 2022-03-31 |
| MCL | Health-based | Archived | 2022-01-01 → 2022-03-31 |
| MCL | Health-based | Archived | 2021-10-01 → 2021-12-31 |
| MCL | Health-based | Archived | 2021-10-01 → 2021-12-31 |
| MCL | Health-based | Archived | 2021-04-01 → 2021-06-30 |
| MCL | Health-based | Archived | 2021-04-01 → 2021-06-30 |
| MCL | Health-based | Archived | 2021-01-01 → 2021-03-31 |
| MCL | Health-based | Archived | 2021-01-01 → 2021-03-31 |
| MR | Monitoring | Resolved | 2014-10-01 |
| MR | Monitoring | Resolved | 2014-10-01 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 7800 µg/L 78% of the EPA limit 10000 µg/L
worst single sample: 9800 µg/L | 88/88 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 8/8 | LCR | 2024 |
| Arsenic | 2.055 µg/L 21% of the EPA limit 10 µg/L
worst single sample: 2.1 µg/L | 4/4 | SYR4 | 2014–2017 |
| Barium | 99.7 µg/L 5% of the EPA limit 2000 µg/L
worst single sample: 100 µg/L | 4/4 | SYR4 | 2014–2017 |
| Chromium | 3.84 µg/L 3.8% of the EPA limit 100 µg/L
worst single sample: 3.9 µg/L | 4/4 | SYR4 | 2014–2017 |
| Fluoride | 154 µg/L 3.9% of the EPA limit 4000 µg/L
worst single sample: 160 µg/L | 3/4 | SYR4 | 2014–2017 |
| Copper | 2.8 µg/L 0.2% of the EPA limit 1300 µg/L | 1/4 | SYR4 | 2014–2017 |
| Cyanide | 17 µg/L 8.5% of the EPA limit 200 µg/L | 1/1 | SYR4 | 2014 |
| Cadmium | 0.0068 µg/L 0.1% of the EPA limit 5 µg/L | 1/4 | SYR4 | 2014–2017 |
| Lead | 2.6 µg/L 17% of the EPA limit 15 µg/L | 1/3 | SYR4 | 2014–2017 |
| Selenium | 0.4300 µg/L 0.9% of the EPA limit 50 µg/L | 1/4 | SYR4 | 2014–2017 |
31 contaminants tested, none detected
Utility contact
Frequently asked questions about Fcsa 10a - Mansionette Estates
Is Fcsa 10a - Mansionette Estates tap water safe to drink?
EPA monitoring detected 11 contaminants in Fcsa 10a - Mansionette Estates'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 Fcsa 10a - Mansionette Estates's water?
EPA monitoring detected Nitrate, Lead, Arsenic, Barium, Chromium, and others. The full list with the level and data source for each is above.
How many people does Fcsa 10a - Mansionette Estates serve?
Fcsa 10a - Mansionette Estates reports serving 81 people in California, per its EPA record.
Has Fcsa 10a - Mansionette Estates had any water quality violations?
The EPA has 12 violations on file for Fcsa 10a - Mansionette Estates, 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.