What was found in ZIP 92346
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 | 530000 µg/L 5300% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Nitrate | 10848 µg/L 108% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Fluoride | 2600 µg/L 65% of the EPA limit 4000 µg/L Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| TTHM | 78.66 µg/L 98% of the EPA limit 80 µg/L Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Lithium | 56.2 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2025 | 1/1 | UCMR-5 |
| Combined Uranium | 42.2415 µg/L 141% of the EPA limit, at the 95th percentile of samples — 30 µg/L Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Chloroform | 35.84 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 32.07 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 28.87 µg/L 48% of the EPA limit 60 µg/L Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 23.6 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Bromoform | 19.305 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 18.225 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 13.6 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 12.43 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Arsenic | 6.065 µg/L 61% of the EPA limit 10 µg/L Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Tetrachloroethylene | 2.84 µg/L 57% of the EPA limit 5 µg/L Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.3 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0120 µg/L 6% of the EPA limit 0.2000 µg/L Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2019 | 1/1 | SYR4 |
| PFOS | 0.0120 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0090 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0089 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0047 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0047 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0040 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2025 | 1/1 | UCMR-5 |
| Pfhpa | 0.0031 µg/L No EPA limit set Main supplier: EAST VALLEY WATER DISTRICT · 108,629 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: EAST VALLEY WATER DISTRICT · 108,629 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.
Water suppliers serving ZIP 92346
| Supplier | State | Population served |
|---|---|---|
| EAST VALLEY WATER DISTRICT | CA | 108,629 |
Frequently asked questions about ZIP 92346 tap water
Is the tap water in ZIP 92346 safe to drink?
EPA testing detected 26 contaminants across the water suppliers serving ZIP 92346. 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 92346?
1 public water supplier report EPA drinking-water monitoring for ZIP 92346. Each is listed above with its population served.
What contaminants are in ZIP 92346's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, TTHM, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.