What was found in ZIP 90401
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 570000 µg/L 5700% of the EPA limit, in the worst sample — 10000 µg/L | 2/2 | SYR4 |
| Nitrate | 7400 µg/L 74% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Copper | 399 µg/L 31% of the EPA limit 1300 µg/L | 2/2 | SYR4 |
| Fluoride | 390 µg/L 9.8% of the EPA limit 4000 µg/L | 1/2 | SYR4 |
| Lead | 123 µg/L 820% of the EPA limit, in the worst sample — 15 µg/L | 2/2 | SYR4 |
| Barium | 117 µg/L 5.9% of the EPA limit 2000 µg/L | 1/2 | SYR4 |
| Trichloroethylene | 63.2 µg/L 1264% of the EPA limit, in the worst sample — 5 µg/L | 1/2 | SYR4 |
| TTHM | 55 µg/L 69% of the EPA limit 80 µg/L | 2/2 | SYR4 |
| Combined Uranium | 47.68 µg/L 159% of the EPA limit, in the worst sample — 30 µg/L | 1/2 | SYR4 |
| Tetrachloroethylene | 43.4 µg/L 868% of the EPA limit, in the worst sample — 5 µg/L | 1/2 | SYR4 |
| Bromoform | 35.4 µg/L No EPA limit set | 2/2 | SYR4 |
| Lithium | 34.8 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 20 µg/L 33% of the EPA limit 60 µg/L | 1/2 | SYR4 |
| Dibromochloromethane | 19 µg/L No EPA limit set | 1/2 | SYR4 |
| Chloroform | 18 µg/L No EPA limit set | 1/2 | SYR4 |
| Selenium | 16.9 µg/L 34% of the EPA limit 50 µg/L | 1/2 | SYR4 |
| Bromodichloromethane | 16 µg/L No EPA limit set | 1/2 | SYR4 |
| Monochloroacetic Acid | 15 µg/L No EPA limit set | 1/2 | SYR4 |
| 1,1-Dichloroethylene | 12.6 µg/L 180% of the EPA limit, in the worst sample — 7 µg/L | 1/2 | SYR4 |
| Dichloroacetic Acid | 9.8 µg/L No EPA limit set | 1/2 | SYR4 |
| cis-1,2-Dichloroethylene | 6.4 µg/L 9.1% of the EPA limit 70 µg/L | 1/2 | SYR4 |
| Trichloroacetic Acid | 5.9 µg/L No EPA limit set | 1/2 | SYR4 |
| Gross Beta Particle Activity | 5.8 pCi/L No EPA limit set | 2/2 | SYR4 |
| Dibromoacetic Acid | 5.4 µg/L No EPA limit set | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.4 pCi/L 29% of the EPA limit 15 pCi/L | 1/2 | SYR4 |
| Toluene | 3.4 µg/L 0.3% of the EPA limit 1000 µg/L | 1/2 | SYR4 |
| Chromium | 3.1 µg/L 3.1% of the EPA limit 100 µg/L | 2/2 | SYR4 |
| Monobromoacetic Acid | 2.5 µg/L No EPA limit set | 1/2 | SYR4 |
| Arsenic | 1.4 µg/L 14% of the EPA limit 10 µg/L | 1/2 | SYR4 |
| Cadmium | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/2 | SYR4 |
| Carbon Tetrachloride | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/2 | SYR4 |
| Pfpea | 0.0220 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfhxa | 0.0179 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Lead | 0.0107 mg/L 72% of the EPA limit 0.0150 mg/L | 2/2 | LCR |
| Pfba | 0.0088 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfhpa | 0.0050 µg/L No EPA limit set | 1/2 | UCMR-5 |
| PFOA | 0.0046 µg/L No EPA limit set | 1/2 | UCMR-5 |
| PFBS | 0.0045 µg/L No EPA limit set | 1/2 | UCMR-5 |
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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 90401
| Supplier | State | Population served |
|---|---|---|
| SANTA MONICA-CITY, WATER DIVISION | CA | 89,947 |
| KOHALA RANCH WATER CO. | HI | 850 |
Frequently asked questions about ZIP 90401 tap water
Is the tap water in ZIP 90401 safe to drink?
EPA testing detected 38 contaminants across the water suppliers serving ZIP 90401. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 90401?
2 public water suppliers report EPA drinking-water monitoring for ZIP 90401. Each is listed above with its population served.
What contaminants are in ZIP 90401's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Copper, Fluoride, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.