What was found in Jurupa Valley's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| 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 | 3/3 | 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 city: 600 µg/L — RUBIDOUX COMMUNITY SD · 36,827 people · 2019 | 3/3 | SYR4 |
| Copper | 137 µg/L 11% of the EPA limit 1300 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/3 | SYR4 |
| Barium | 123.99999999999991 µg/L 6.2% of the EPA limit 2000 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 3/3 | SYR4 |
| TTHM | 26.14999999999998 µg/L 33% of the EPA limit 80 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 3/3 | SYR4 |
| Combined Uranium | 7.585589999999998 µg/L 25% of the EPA limit 30 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the city: 15.4066 µg/L — SANTA ANA RIVER WATER COMPANY · 5,848 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 7.399999999999997 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the city: 15.2 µg/L — RUBIDOUX COMMUNITY SD · 36,827 people · 2019 | 3/3 | 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 | 3/3 | SYR4 |
| Dibromochloromethane | 10.399999999999991 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 3/3 | SYR4 |
| Bromoform | 10.2 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 3/3 | SYR4 |
| Nitrite | 9.365 µg/L 0.9% of the EPA limit 1000 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/3 | 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 city: 6.625 µg/L — RUBIDOUX COMMUNITY SD · 36,827 people · 2019 | 2/3 | SYR4 |
| Dibromoacetic Acid | 5.819999999999999 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 2/3 | SYR4 |
| Selenium | 5.4399999999999995 µg/L 11% of the EPA limit 50 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/3 | SYR4 |
| Bromodichloromethane | 5.099999999999996 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 3/3 | 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 | 1/3 | SYR4 |
| Monobromoacetic Acid | 3.1999999999999984 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019
Highest in the city: 4.32 µg/L — RUBIDOUX COMMUNITY SD · 36,827 people · 2019 | 3/3 | 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 city: 3.479999999999999 µg/L — RUBIDOUX COMMUNITY SD · 36,827 people · 2019 | 2/3 | SYR4 |
| Dichloroacetic Acid | 1.585 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/3 | SYR4 |
| Dichloromethane | 1.556 µg/L 31% of the EPA limit 5 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/3 | SYR4 |
| Chloroform | 1.5 µg/L No EPA limit set Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 3/3 | SYR4 |
| Tetrachloroethylene | 0.9150 µg/L 18% of the EPA limit 5 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/3 | SYR4 |
| Trichloroethylene | 0.6280 µg/L 13% of the EPA limit 5 µg/L Main supplier: JURUPA COMMUNITY SD · 135,093 people · 2019 | 1/3 | 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 | 1/3 | SYR4 |
| Pfpea | 0.0280 µg/L No EPA limit set Highest in the city: RUBIDOUX COMMUNITY SD · 36,827 people · 2024 | 1/3 | UCMR-5 |
| Pfba | 0.0220 µg/L No EPA limit set Highest in the city: RUBIDOUX COMMUNITY SD · 36,827 people · 2024 | 1/3 | UCMR-5 |
| Pfhxa | 0.0082 µg/L No EPA limit set Highest in the city: RUBIDOUX COMMUNITY SD · 36,827 people · 2024 | 1/3 | 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 city: 0.0016 mg/L — RUBIDOUX COMMUNITY SD · 36,827 people · 2023 | 3/3 | 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Jurupa Valley
| Supplier | Population served |
|---|---|
| JURUPA COMMUNITY SD | 135,093 |
| RUBIDOUX COMMUNITY SD | 36,827 |
| SANTA ANA RIVER WATER COMPANY | 5,848 |
Frequently asked questions about Jurupa Valley tap water
Is Jurupa Valley tap water safe to drink?
EPA testing detected 28 contaminants in the water serving Jurupa Valley. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Jurupa Valley?
3 public water suppliers report drinking-water monitoring for Jurupa Valley, California to the EPA. Each is listed above with its population served.
What contaminants are in Jurupa Valley's water?
The contaminants EPA monitoring detected in Jurupa Valley include Nitrate, Fluoride, Copper, Barium, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.