What was found in La Habra Heights'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 | 5100 µg/L 51% of the EPA limit 10000 µg/L Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| Fluoride | 281 µg/L 7% of the EPA limit 4000 µg/L Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| TTHM | 50.625 µg/L 63% of the EPA limit 80 µg/L Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| Lithium | 48.5 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2025 | 1/1 | UCMR-5 |
| Bromoform | 22.175 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 17.4 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 9.7 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 4.7978 µg/L 16% of the EPA limit 30 µg/L Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2016 | 1/1 | SYR4 |
| Dibromoacetic Acid | 4.685 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 4.685 µg/L 7.8% of the EPA limit 60 µg/L Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| Chloroform | 3.975 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| Arsenic | 3.905 µg/L 39% of the EPA limit 10 µg/L Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.7 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2019 | 1/1 | SYR4 |
| PFOS | 0.0230 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0110 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0099 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2025 | 1/1 | UCMR-5 |
| Pfba | 0.0083 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0078 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0076 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0045 µg/L No EPA limit set Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: LA HABRA HEIGHTS CWD · 5,325 people · 2024 | 1/1 | LCR |
Water suppliers serving La Habra Heights
| Supplier | Population served |
|---|---|
| LA HABRA HEIGHTS CWD | 5,325 |
Frequently asked questions about La Habra Heights tap water
Is La Habra Heights tap water safe to drink?
EPA testing detected 21 contaminants in the water serving La Habra Heights. 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 La Habra Heights?
1 public water supplier report drinking-water monitoring for La Habra Heights, California to the EPA. Each is listed above with its population served.
What contaminants are in La Habra Heights's water?
The contaminants EPA monitoring detected in La Habra Heights include Nitrate, Fluoride, TTHM, Lithium, Bromoform. 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.