What was found in ZIP 90704
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 4365 µg/L 44% of the EPA limit 10000 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Nitrate | 4185 µg/L 42% of the EPA limit 10000 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Fluoride | 794 µg/L 20% of the EPA limit 4000 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 375 pCi/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2016 | 1/1 | SYR4 |
| Barium | 221 µg/L 11% of the EPA limit 2000 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Copper | 140 µg/L 11% of the EPA limit 1300 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| TTHM | 117 µg/L 146% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Bromoform | 69.7 µg/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Lithium | 52.9 µg/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2024 | 1/1 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 39.75 µg/L 66% of the EPA limit 60 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 35.8 µg/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 32 µg/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Selenium | 12 µg/L 24% of the EPA limit 50 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Chromium | 11 µg/L 11% of the EPA limit 100 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 10 µg/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Arsenic | 5.625 µg/L 56% of the EPA limit 10 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 5.42 µg/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Tetrachloroethylene | 4.34 µg/L 87% of the EPA limit 5 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 3.874 µg/L 13% of the EPA limit 30 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 3.7 µg/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Chloroform | 2.445 µg/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 2.18 µg/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 2 µg/L 40% of the EPA limit 5 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Toluene | 1.5655 µg/L 0.2% of the EPA limit 1000 µg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2019 | 1/1 | SYR4 |
| Pfhpa | 0.0070 µg/L No EPA limit set Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: SO. CAL. EDISON CO.-SANTA CATALINA · 3,822 people · 2023 | 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.
Water suppliers serving ZIP 90704
| Supplier | State | Population served |
|---|---|---|
| SO. CAL. EDISON CO.-SANTA CATALINA | CA | 3,822 |
Frequently asked questions about ZIP 90704 tap water
Is the tap water in ZIP 90704 safe to drink?
EPA testing detected 26 contaminants across the water suppliers serving ZIP 90704. 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 90704?
1 public water supplier report EPA drinking-water monitoring for ZIP 90704. Each is listed above with its population served.
What contaminants are in ZIP 90704's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Gross Beta Particle Activity, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.