What was found in ZIP 90670
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 | 1000000 µg/L 10000% of the EPA limit, in the worst sample — 10000 µg/L | 3/5 | SYR4 |
| Nitrate | 22000 µg/L 220% of the EPA limit, in the worst sample — 10000 µg/L | 3/5 | SYR4 |
| Fluoride | 5400 µg/L 135% of the EPA limit, in the worst sample — 4000 µg/L | 4/5 | SYR4 |
| Barium | 290 µg/L 14% of the EPA limit 2000 µg/L | 3/5 | SYR4 |
| Tetrachloroethylene | 220 µg/L 4400% of the EPA limit, in the worst sample — 5 µg/L | 3/5 | SYR4 |
| Trichloroethylene | 140 µg/L 2800% of the EPA limit, in the worst sample — 5 µg/L | 3/5 | SYR4 |
| TTHM | 90 µg/L 113% of the EPA limit, in the worst sample — 80 µg/L | 5/5 | SYR4 |
| Lithium | 88.6 µg/L No EPA limit set | 4/5 | UCMR-5 |
| 1,1-Dichloroethylene | 64 µg/L 914% of the EPA limit, in the worst sample — 7 µg/L | 3/5 | SYR4 |
| Copper | 59 µg/L 4.5% of the EPA limit 1300 µg/L | 2/5 | SYR4 |
| Chloroform | 37 µg/L No EPA limit set | 5/5 | SYR4 |
| Dibromochloromethane | 33.6 µg/L No EPA limit set | 5/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 30 µg/L 50% of the EPA limit 60 µg/L | 5/5 | SYR4 |
| Bromodichloromethane | 28 µg/L No EPA limit set | 5/5 | SYR4 |
| Bromoform | 24 µg/L No EPA limit set | 5/5 | SYR4 |
| trans-1,2-Dichloroethylene | 23 µg/L 23% of the EPA limit 100 µg/L | 2/5 | SYR4 |
| Dichloroacetic Acid | 19 µg/L No EPA limit set | 4/5 | SYR4 |
| Carbon Tetrachloride | 17 µg/L 340% of the EPA limit, in the worst sample — 5 µg/L | 1/5 | SYR4 |
| Trichloroacetic Acid | 16 µg/L No EPA limit set | 4/5 | SYR4 |
| Selenium | 15 µg/L 30% of the EPA limit 50 µg/L | 2/5 | SYR4 |
| Combined Uranium | 14.9 µg/L 50% of the EPA limit 30 µg/L | 4/5 | SYR4 |
| Dibromoacetic Acid | 11.4 µg/L No EPA limit set | 5/5 | SYR4 |
| cis-1,2-Dichloroethylene | 8.9 µg/L 13% of the EPA limit 70 µg/L | 2/5 | SYR4 |
| Gross Beta Particle Activity | 7.9 pCi/L No EPA limit set | 2/5 | SYR4 |
| Chromium | 6.5 µg/L 6.5% of the EPA limit 100 µg/L | 1/5 | SYR4 |
| Monochloroacetic Acid | 6.2 µg/L No EPA limit set | 3/5 | SYR4 |
| Arsenic | 4.9 µg/L 49% of the EPA limit 10 µg/L | 4/5 | SYR4 |
| 1,1,2-Trichloroethane | 3.8 µg/L 76% of the EPA limit 5 µg/L | 1/5 | SYR4 |
| 1,2-Dichloroethane | 3.7 µg/L 74% of the EPA limit 5 µg/L | 2/5 | SYR4 |
| Monobromoacetic Acid | 2.5 µg/L No EPA limit set | 3/5 | SYR4 |
| Dichloromethane | 1.1 µg/L 22% of the EPA limit 5 µg/L | 1/5 | SYR4 |
| Pentachlorophenol | 0.8500 µg/L 85% of the EPA limit 1 µg/L | 1/5 | SYR4 |
| 1,2-Dichloropropane | 0.8300 µg/L 17% of the EPA limit 5 µg/L | 1/5 | SYR4 |
| Toluene | 0.5200 µg/L 0.1% of the EPA limit 1000 µg/L | 1/5 | SYR4 |
| Nitrite | 0.4700 µg/L 0% of the EPA limit 1000 µg/L | 1/5 | SYR4 |
| Mercury | 0.2100 µg/L 11% of the EPA limit 2 µg/L | 1/5 | SYR4 |
| PFOS | 0.0590 µg/L No EPA limit set | 3/5 | UCMR-5 |
| Pfpea | 0.0170 µg/L No EPA limit set | 5/5 | UCMR-5 |
| PFOA | 0.0160 µg/L No EPA limit set | 3/5 | UCMR-5 |
| Pfba | 0.0140 µg/L No EPA limit set | 5/5 | UCMR-5 |
| Pfhxa | 0.0130 µg/L No EPA limit set | 2/5 | UCMR-5 |
| PFHXS | 0.0110 µg/L No EPA limit set | 2/5 | UCMR-5 |
| PFBS | 0.0089 µg/L No EPA limit set | 3/5 | UCMR-5 |
| Pfhpa | 0.0039 µg/L No EPA limit set | 1/5 | UCMR-5 |
| Lead | 0.0019 mg/L 13% of the EPA limit 0.0150 mg/L | 5/5 | 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 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 90670
| Supplier | State | Population served |
|---|---|---|
| SAN GABRIEL VALLEY WATER CO.-EL MONTE | CA | 248,000 |
| LIBERTY UTILITIES - BELLFLOWER-NORWALK | CA | 72,624 |
| SUBURBAN WATER SYSTEMS-LA MIRADA | CA | 56,793 |
| GSWC - NORWALK | CA | 43,167 |
| SANTA FE SPRINGS - CITY, WATER DEPT. | CA | 19,219 |
Frequently asked questions about ZIP 90670 tap water
Is the tap water in ZIP 90670 safe to drink?
EPA testing detected 45 contaminants across the water suppliers serving ZIP 90670. 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 90670?
5 public water suppliers report EPA drinking-water monitoring for ZIP 90670. Each is listed above with its population served.
What contaminants are in ZIP 90670's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Barium, Tetrachloroethylene, and others across this ZIP's suppliers. The full list with levels and sources is above.