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 |
|---|---|---|---|
| MR | Monitoring | Resolved | 2022-10-01 |
| MR | Monitoring | Resolved | 2022-10-01 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 23 µg/L No EPA limit set | 114/114 | SYR4 | 2012–2019 |
| Bromoform | 13 µg/L No EPA limit set | 114/114 | SYR4 | 2012–2019 |
| Chloroform | 35 µg/L No EPA limit set | 114/114 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 7.3 µg/L No EPA limit set | 114/114 | SYR4 | 2012–2019 |
| Dibromochloromethane | 28 µg/L No EPA limit set | 114/114 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 14 µg/L No EPA limit set | 114/114 | SYR4 | 2012–2019 |
| TTHM | 72 µg/L 90% of the EPA limit 80 µg/L | 114/114 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 27 µg/L 45% of the EPA limit 60 µg/L | 114/114 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 10 µg/L No EPA limit set | 114/114 | SYR4 | 2012–2019 |
| Lead | 0.0011 mg/L 7.3% of the EPA limit 0.0150 mg/L | 29/29 | LCR | 2025 |
| Monobromoacetic Acid | 1.9 µg/L No EPA limit set | 9/114 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 2.5 µg/L No EPA limit set | 4/114 | SYR4 | 2012–2019 |
| Lithium | 40 µg/L No EPA limit set | 4/4 | UCMR-5 | 2024 |
| Chlorite | 570 µg/L 57% of the EPA limit 1000 µg/L | 1/1 | SYR4 | 2019 |
25 contaminants tested, none detected
Utility contact
Frequently asked questions about San Dieguito Wd
Is San Dieguito Wd tap water safe to drink?
EPA monitoring detected 18 contaminants in San Dieguito Wd'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 San Dieguito Wd's water?
EPA monitoring detected Bromodichloromethane, Bromoform, Chloroform, Dibromoacetic Acid, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does San Dieguito Wd serve?
San Dieguito Wd reports serving 40,405 people in California, per its EPA record.
Has San Dieguito Wd had any water quality violations?
The EPA has 2 violations on file for San Dieguito Wd, of which 0 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.