What was found in Calabasas'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-Nitrite | 400000 µg/L 4000% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2013 | 1/1 | SYR4 |
| Fluoride | 838 µg/L 21% of the EPA limit 4000 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Nitrate | 804.2099999999998 µg/L 8% of the EPA limit 10000 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Nitrite | 500 µg/L 50% of the EPA limit 1000 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| TTHM | 63 µg/L 79% of the EPA limit 80 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 27.799999999999955 µg/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Barium | 26 µg/L 1.3% of the EPA limit 2000 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Bromoform | 19 µg/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 16.14999999999992 µg/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Lithium | 15 µg/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2024 | 1/1 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 14.699999999999989 µg/L 24% of the EPA limit 60 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 12 pCi/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2014 | 1/1 | SYR4 |
| Copper | 10 µg/L 0.8% of the EPA limit 1300 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Chloroform | 10 µg/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 7.5 µg/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 6.629999999999999 µg/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 5.449999999999999 µg/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 4.969999999999999 µg/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 4.193 µg/L 14% of the EPA limit 30 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2015 | 1/1 | SYR4 |
| Monobromoacetic Acid | 3.619999999999999 µg/L No EPA limit set Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Arsenic | 2.95 µg/L 30% of the EPA limit 10 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Selenium | 0.5700 µg/L 1.1% of the EPA limit 50 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Chromium | 0.1200 µg/L 0.1% of the EPA limit 100 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 0.0830 µg/L 1.4% of the EPA limit 6 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0620 µg/L 0.4% of the EPA limit 15 µg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: LAS VIRGENES MWD · 72,602 people · 2024 | 1/1 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Calabasas
| Supplier | Population served |
|---|---|
| LAS VIRGENES MWD | 72,602 |
Frequently asked questions about Calabasas tap water
Is Calabasas tap water safe to drink?
EPA testing detected 26 contaminants in the water serving Calabasas. 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 Calabasas?
1 public water supplier report drinking-water monitoring for Calabasas, California to the EPA. Each is listed above with its population served.
What contaminants are in Calabasas's water?
The contaminants EPA monitoring detected in Calabasas include Nitrate-Nitrite, Fluoride, Nitrate, Nitrite, TTHM. 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.