What was found in Trabuco Canyon's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 2377.5 µg/L 24% of the EPA limit 10000 µg/L Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Fluoride | 314.9 µg/L 7.9% of the EPA limit 4000 µg/L Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Barium | 130.4 µg/L 6.5% of the EPA limit 2000 µg/L Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| TTHM | 70.97 µg/L 89% of the EPA limit 80 µg/L Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Lithium | 65.9 µg/L No EPA limit set Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2024 | 1/1 | UCMR-5 |
| Chloroform | 31.3 µg/L No EPA limit set Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 21.115 µg/L No EPA limit set Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 18.625 µg/L 31% of the EPA limit 60 µg/L Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 18.215 µg/L No EPA limit set Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 8.814 µg/L No EPA limit set Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 8.02 µg/L No EPA limit set Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Selenium | 5.5395 µg/L 11% of the EPA limit 50 µg/L Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Bromoform | 4.871 µg/L No EPA limit set Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 3.576 µg/L 12% of the EPA limit 30 µg/L Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2017 | 1/1 | SYR4 |
| Dibromoacetic Acid | 3.411 µg/L No EPA limit set Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 2.4875 µg/L No EPA limit set Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 1.2805 µg/L No EPA limit set Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0039 mg/L 26% of the EPA limit 0.0150 mg/L Main supplier: TRABUCO CANYON WATER DISTRICT · 13,659 people · 2024 | 1/1 | LCR |
Water suppliers serving Trabuco Canyon
| Supplier | Population served |
|---|---|
| TRABUCO CANYON WATER DISTRICT | 13,659 |
Frequently asked questions about Trabuco Canyon tap water
Is Trabuco Canyon tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Trabuco Canyon. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Trabuco Canyon?
1 public water supplier report drinking-water monitoring for Trabuco Canyon, California to the EPA. Each is listed above with its population served.
What contaminants are in Trabuco Canyon's water?
The contaminants EPA monitoring detected in Trabuco Canyon include Nitrate, Fluoride, Barium, TTHM, Lithium. The full list, with the level at the main supplier and the data source, is in the table above.
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.