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 | 2020-01-01 → 2020-03-31 |
| MCL | Health-based | Archived | 2019-07-01 → 2019-09-30 |
| MCL | Health-based | Archived | 2019-04-01 → 2019-06-30 |
| MCL | Health-based | Archived | 2019-01-01 → 2019-03-31 |
| MCL | Health-based | Archived | 2018-10-01 → 2018-12-31 |
| MCL | Health-based | Archived | 2018-07-01 → 2018-09-30 |
| MCL | Health-based | Archived | 2018-04-01 → 2018-06-30 |
| MCL | Health-based | Archived | 2018-01-01 → 2018-03-31 |
| MCL | Health-based | Archived | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Archived | 2017-04-01 → 2017-06-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Lead | 0.00080 mg/L 5.3% of the EPA limit 0.0150 mg/L | 10/10 | LCR | 2026 |
| Bromodichloromethane | 6.5 µg/L No EPA limit set
worst single sample: 6.7 µg/L | 9/9 | SYR4 | 2015–2019 |
| Bromoform | 77.2 µg/L No EPA limit set
worst single sample: 82 µg/L | 9/9 | SYR4 | 2015–2019 |
| Dibromochloromethane | 29.6 µg/L No EPA limit set
worst single sample: 30 µg/L | 9/9 | SYR4 | 2015–2019 |
| TTHM | 112 µg/L 140% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 120 µg/L | 9/9 | SYR4 | 2015–2019 |
| Dibromoacetic Acid | 17 µg/L No EPA limit set | 8/8 | SYR4 | 2015–2019 |
| Total Haloacetic Acids (HAA5) | 19 µg/L 32% of the EPA limit 60 µg/L | 8/8 | SYR4 | 2015–2019 |
| Monobromoacetic Acid | 2.25 µg/L No EPA limit set
worst single sample: 2.3 µg/L | 6/8 | SYR4 | 2015–2019 |
| Chloroform | 1 µg/L No EPA limit set | 1/9 | SYR4 | 2015–2019 |
3 contaminants tested, none detected
Utility contact
Frequently asked questions about Las Deltas Mutual Water Company
Is Las Deltas Mutual Water Company tap water safe to drink?
EPA monitoring detected 9 contaminants in Las Deltas Mutual Water Company'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 Las Deltas Mutual Water Company's water?
EPA monitoring detected Lead, Bromodichloromethane, Bromoform, Dibromochloromethane, TTHM, and others. The full list with the level and data source for each is above.
How many people does Las Deltas Mutual Water Company serve?
Las Deltas Mutual Water Company reports serving 375 people in California, per its EPA record.
Has Las Deltas Mutual Water Company had any water quality violations?
The EPA has 32 violations on file for Las Deltas Mutual Water Company, of which 14 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.