What was found in ZIP 92509
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 | 780000 µg/L 7800% of the EPA limit, in the worst sample — 10000 µg/L | 1/4 | SYR4 |
| Nitrate | 65000 µg/L 650% of the EPA limit, in the worst sample — 10000 µg/L | 3/4 | SYR4 |
| Fluoride | 1300 µg/L 33% of the EPA limit 4000 µg/L | 3/4 | SYR4 |
| Barium | 200 µg/L 10% of the EPA limit 2000 µg/L | 2/4 | SYR4 |
| Copper | 140 µg/L 11% of the EPA limit 1300 µg/L | 2/4 | SYR4 |
| TTHM | 95.6 µg/L 119% of the EPA limit, in the worst sample — 80 µg/L | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 52 µg/L 87% of the EPA limit 60 µg/L | 4/4 | SYR4 |
| Monochloroacetic Acid | 44 µg/L No EPA limit set | 3/4 | SYR4 |
| Dibromochloromethane | 36.1 µg/L No EPA limit set | 4/4 | SYR4 |
| Chloroform | 33 µg/L No EPA limit set | 4/4 | SYR4 |
| Bromoform | 31.7 µg/L No EPA limit set | 4/4 | SYR4 |
| Bromodichloromethane | 25.8 µg/L No EPA limit set | 4/4 | SYR4 |
| Arsenic | 19 µg/L 190% of the EPA limit, in the worst sample — 10 µg/L | 3/4 | SYR4 |
| Combined Uranium | 17.88 µg/L 60% of the EPA limit 30 µg/L | 3/4 | SYR4 |
| Lithium | 16 µg/L No EPA limit set | 1/4 | UCMR-5 |
| Dichloroacetic Acid | 11.8 µg/L No EPA limit set | 3/4 | SYR4 |
| Dibromoacetic Acid | 10.6 µg/L No EPA limit set | 4/4 | SYR4 |
| Nitrite | 9.8 µg/L 1% of the EPA limit 1000 µg/L | 1/4 | SYR4 |
| Trichloroacetic Acid | 7.9 µg/L No EPA limit set | 2/4 | SYR4 |
| Chromium | 6.9 µg/L 6.9% of the EPA limit 100 µg/L | 2/4 | SYR4 |
| 1,1-Dichloroethylene | 5.9 µg/L 84% of the EPA limit 7 µg/L | 1/4 | SYR4 |
| Selenium | 5.5 µg/L 11% of the EPA limit 50 µg/L | 1/4 | SYR4 |
| Monobromoacetic Acid | 4.7 µg/L No EPA limit set | 4/4 | SYR4 |
| Tetrachloroethylene | 2 µg/L 40% of the EPA limit 5 µg/L | 2/4 | SYR4 |
| Toluene | 1.7 µg/L 0.2% of the EPA limit 1000 µg/L | 1/4 | SYR4 |
| Dichloromethane | 1.6 µg/L 32% of the EPA limit 5 µg/L | 1/4 | SYR4 |
| Trichloroethylene | 0.6300 µg/L 13% of the EPA limit 5 µg/L | 1/4 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0360 µg/L 18% of the EPA limit 0.2000 µg/L | 1/4 | SYR4 |
| Pfpea | 0.0280 µg/L No EPA limit set | 2/4 | UCMR-5 |
| Pfba | 0.0220 µg/L No EPA limit set | 1/4 | UCMR-5 |
| Pfhxa | 0.0082 µg/L No EPA limit set | 1/4 | UCMR-5 |
| PFHXS | 0.0034 µg/L No EPA limit set | 1/4 | UCMR-5 |
| PFBS | 0.0030 µg/L No EPA limit set | 1/4 | UCMR-5 |
| Lead | 0.0016 mg/L 11% of the EPA limit 0.0150 mg/L | 4/4 | 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 92509
| Supplier | State | Population served |
|---|---|---|
| JURUPA COMMUNITY SD | CA | 135,093 |
| WEST VALLEY WATER DISTRICT | CA | 104,498 |
| WESTERN MWD | CA | 86,062 |
| RUBIDOUX COMMUNITY SD | CA | 36,827 |
Frequently asked questions about ZIP 92509 tap water
Is the tap water in ZIP 92509 safe to drink?
EPA testing detected 34 contaminants across the water suppliers serving ZIP 92509. 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 92509?
4 public water suppliers report EPA drinking-water monitoring for ZIP 92509. Each is listed above with its population served.
What contaminants are in ZIP 92509's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Barium, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.