What was found in ZIP 95307
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 | 954500 µg/L 9545% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2017 | 1/1 | SYR4 |
| Nitrate | 9500 µg/L 95% of the EPA limit 10000 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Barium | 211 µg/L 11% of the EPA limit 2000 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Fluoride | 140 µg/L 3.5% of the EPA limit 4000 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 63.7 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 60.25 µg/L 100% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 40.23 µg/L 134% of the EPA limit, at the 95th percentile of samples — 30 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 22.435 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Lithium | 15.7 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2025 | 1/1 | UCMR-5 |
| Arsenic | 15 µg/L 150% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 9.6 pCi/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2017 | 1/1 | SYR4 |
| TTHM | 9.24 µg/L 12% of the EPA limit 80 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Bromoform | 6.93 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Tetrachloroethylene | 6 µg/L 120% of the EPA limit, at the 95th percentile of samples — 5 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Selenium | 5.2 µg/L 10% of the EPA limit 50 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 2.53 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.48 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| Chloroform | 0.6100 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.1431 µg/L 72% of the EPA limit 0.2000 µg/L Main supplier: CERES, CITY OF · 54,513 people · 2019 | 1/1 | SYR4 |
| PFOS | 0.0240 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0120 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0084 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0074 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0066 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0057 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2025 | 1/1 | UCMR-5 |
| Pfhpa | 0.0047 µg/L No EPA limit set Main supplier: CERES, CITY OF · 54,513 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CERES, CITY OF · 54,513 people · 2023 | 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 95307
| Supplier | State | Population served |
|---|---|---|
| CERES, CITY OF | CA | 54,513 |
Frequently asked questions about ZIP 95307 tap water
Is the tap water in ZIP 95307 safe to drink?
EPA testing detected 27 contaminants across the water suppliers serving ZIP 95307. 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 95307?
1 public water supplier report EPA drinking-water monitoring for ZIP 95307. Each is listed above with its population served.
What contaminants are in ZIP 95307's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Barium, Fluoride, Trichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.