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 | 1995-10-01 → 1995-10-31 |
| MCL | Health-based | Resolved | 1995-10-01 → 1995-10-31 |
| MR | Monitoring | Resolved | 2022-10-01 → 2022-12-31 |
| MR | Monitoring | Resolved | 2022-10-01 → 2022-12-31 |
| MR | Monitoring | Resolved | 2020-10-01 |
| MR | Monitoring | Resolved | 2020-10-01 |
| MR | Monitoring | Resolved | 2013-01-01 → 2013-03-31 |
| MR | Monitoring | Resolved | 2013-01-01 → 2013-03-31 |
| MR | Monitoring | Resolved | 2013-01-01 → 2013-03-31 |
| MR | Monitoring | Resolved | 2013-01-01 → 2013-03-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromoform | 7.945 µg/L No EPA limit set
worst single sample: 34 µg/L | 252/253 | SYR4 | 2012–2019 |
| TTHM | 55.45 µg/L 69% of the EPA limit 80 µg/L
worst single sample: 76 µg/L | 252/253 | SYR4 | 2012–2019 |
| Dibromochloromethane | 19 µg/L No EPA limit set
worst single sample: 24 µg/L | 248/253 | SYR4 | 2012–2019 |
| Bromodichloromethane | 17 µg/L No EPA limit set
worst single sample: 23 µg/L | 243/253 | SYR4 | 2012–2019 |
| Chloroform | 19 µg/L No EPA limit set
worst single sample: 28 µg/L | 242/253 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 25 µg/L 42% of the EPA limit 60 µg/L
worst single sample: 32 µg/L | 196/253 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 10.85 µg/L No EPA limit set
worst single sample: 16 µg/L | 184/253 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 5.34 µg/L No EPA limit set
worst single sample: 7.2 µg/L | 177/253 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 7.745 µg/L No EPA limit set
worst single sample: 9.7 µg/L | 172/253 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 6.4 µg/L No EPA limit set
worst single sample: 6.9 µg/L | 34/253 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 8.6 µg/L No EPA limit set
worst single sample: 9 µg/L | 26/253 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 24/24 | LCR | 2024 |
| Lithium | 57.4 µg/L No EPA limit set | 8/10 | UCMR-5 | 2025 |
31 contaminants tested, none detected
Utility contact
Frequently asked questions about Santa Margarita Water district-id9
Is Santa Margarita Water district-id9 tap water safe to drink?
EPA monitoring detected 13 contaminants in Santa Margarita Water district-id9'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 Santa Margarita Water district-id9's water?
EPA monitoring detected Bromoform, TTHM, Dibromochloromethane, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.
How many people does Santa Margarita Water district-id9 serve?
Santa Margarita Water district-id9 reports serving 39,684 people in California, per its EPA record.
Has Santa Margarita Water district-id9 had any water quality violations?
The EPA has 22 violations on file for Santa Margarita Water district-id9, of which 2 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.