What was found in ZIP 92509
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 | 452000 µg/L 4520% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Highest in the ZIP: WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 1/4 | SYR4 |
| Nitrate | 13334 µg/L 133% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 3/4 | SYR4 |
| Fluoride | 200 µg/L 5% of the EPA limit 4000 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 600 µg/L — RUBIDOUX COMMUNITY SD · 36,827 people · 2019 | 3/4 | SYR4 |
| Copper | 137 µg/L 11% of the EPA limit 1300 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 2/4 | SYR4 |
| Barium | 124 µg/L 6.2% of the EPA limit 2000 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 2/4 | SYR4 |
| TTHM | 26.15 µg/L 33% of the EPA limit 80 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 65.18 µg/L — WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 7.4 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 32.7 µg/L — WESTERN MWD · 86,062 people · 2019 | 3/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11 µg/L 18% of the EPA limit 60 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 23.6 µg/L — WESTERN MWD · 86,062 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 10.4 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 23.575 µg/L — WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 5.1 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 19.39 µg/L — WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 4/4 | SYR4 |
| Chloroform | 1.5 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 18.025 µg/L — WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 4/4 | SYR4 |
| Lithium | 16 µg/L No EPA limit set Highest in the ZIP: WESTERN MWD · 86,062 people · 2023 | 1/4 | UCMR-5 |
| Bromoform | 10.2 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 14.48 µg/L — WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 4/4 | SYR4 |
| Combined Uranium | 7.58559 µg/L 25% of the EPA limit 30 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 10.6535 µg/L — WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 3/4 | SYR4 |
| Nitrite | 9.365 µg/L 0.9% of the EPA limit 1000 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/4 | SYR4 |
| Arsenic | 2.965 µg/L 30% of the EPA limit 10 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 9.2 µg/L — WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 3/4 | SYR4 |
| Dibromoacetic Acid | 5.82 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 8.24 µg/L — WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 1.585 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 6.675 µg/L — WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 3/4 | SYR4 |
| Chromium | 5.2 µg/L 5.2% of the EPA limit 100 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 6.625 µg/L — RUBIDOUX COMMUNITY SD · 36,827 people · 2019 | 2/4 | SYR4 |
| Selenium | 5.44 µg/L 11% of the EPA limit 50 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/4 | SYR4 |
| Trichloroacetic Acid | 4.815 µg/L No EPA limit set Highest in the ZIP: WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 2/4 | SYR4 |
| 1,1-Dichloroethylene | 4.6 µg/L 66% of the EPA limit 7 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/4 | SYR4 |
| Monobromoacetic Acid | 3.2 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 4.32 µg/L — RUBIDOUX COMMUNITY SD · 36,827 people · 2019 | 4/4 | SYR4 |
| Toluene | 1.7 µg/L 0.2% of the EPA limit 1000 µg/L Highest in the ZIP: WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 1/4 | SYR4 |
| Dichloromethane | 1.556 µg/L 31% of the EPA limit 5 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/4 | SYR4 |
| Tetrachloroethylene | 0.9150 µg/L 18% of the EPA limit 5 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the ZIP: 1.25 µg/L — WEST VALLEY WATER DISTRICT · 104,498 people · 2019 | 2/4 | SYR4 |
| Trichloroethylene | 0.6280 µg/L 13% of the EPA limit 5 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/4 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0348 µg/L 17% of the EPA limit 0.2000 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/4 | SYR4 |
| Pfpea | 0.0280 µg/L No EPA limit set Highest in the ZIP: RUBIDOUX COMMUNITY SD · 36,827 people · 2024 | 2/4 | UCMR-5 |
| Pfba | 0.0220 µg/L No EPA limit set Highest in the ZIP: RUBIDOUX COMMUNITY SD · 36,827 people · 2024 | 1/4 | UCMR-5 |
| Pfhxa | 0.0082 µg/L No EPA limit set Highest in the ZIP: RUBIDOUX COMMUNITY SD · 36,827 people · 2024 | 1/4 | UCMR-5 |
| PFHXS | 0.0034 µg/L No EPA limit set Highest in the ZIP: WESTERN MWD · 86,062 people · 2023 | 1/4 | UCMR-5 |
| PFBS | 0.0030 µg/L No EPA limit set Highest in the ZIP: WESTERN MWD · 86,062 people · 2023 | 1/4 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2025
Highest in the ZIP: 0.0016 mg/L — RUBIDOUX COMMUNITY SD · 36,827 people · 2023 | 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 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 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, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.