What was found in ZIP 92703
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 | 980000 µg/L 9800% of the EPA limit, in the worst sample — 10000 µg/L | 1/1 | SYR4 |
| Nitrate | 9860 µg/L 99% of the EPA limit 10000 µg/L | 1/1 | SYR4 |
| Fluoride | 800 µg/L 20% of the EPA limit 4000 µg/L | 1/1 | SYR4 |
| Barium | 169 µg/L 8.5% of the EPA limit 2000 µg/L | 1/1 | SYR4 |
| TTHM | 52.8 µg/L 66% of the EPA limit 80 µg/L | 1/1 | SYR4 |
| Lithium | 38.456 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 23.5 µg/L 39% of the EPA limit 60 µg/L | 1/1 | SYR4 |
| Chloroform | 22.7 µg/L No EPA limit set | 1/1 | SYR4 |
| Dibromochloromethane | 16.9 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromodichloromethane | 16.7 µg/L No EPA limit set | 1/1 | SYR4 |
| Dichloroacetic Acid | 13.9 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromoform | 13.4 µg/L No EPA limit set | 1/1 | SYR4 |
| Combined Uranium | 12.1882 µg/L 41% of the EPA limit 30 µg/L | 1/1 | SYR4 |
| Trichloroacetic Acid | 7.7 µg/L No EPA limit set | 1/1 | SYR4 |
| Dibromoacetic Acid | 5.5 µg/L No EPA limit set | 1/1 | SYR4 |
| Arsenic | 3.5 µg/L 35% of the EPA limit 10 µg/L | 1/1 | SYR4 |
| Monobromoacetic Acid | 3.2 µg/L No EPA limit set | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.1 µg/L No EPA limit set | 1/1 | SYR4 |
| 1,1-Dichloroethylene | 0.8000 µg/L 11% of the EPA limit 7 µg/L | 1/1 | SYR4 |
| PFOS | 0.0142 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFOA | 0.0089 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFHXS | 0.0084 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Pfpea | 0.0059 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Pfhxa | 0.0040 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 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 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 92703
| Supplier | State | Population served |
|---|---|---|
| CITY OF SANTA ANA | CA | 310,539 |
Frequently asked questions about ZIP 92703 tap water
Is the tap water in ZIP 92703 safe to drink?
EPA testing detected 25 contaminants across the water suppliers serving ZIP 92703. 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 92703?
1 public water supplier report EPA drinking-water monitoring for ZIP 92703. Each is listed above with its population served.
What contaminants are in ZIP 92703's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.