What was found in ZIP 92415
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 | 3616 µg/L 36% of the EPA limit 10000 µg/L Main supplier: GLEN HELEN WATER SYSTEM · 5,900 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 2570 µg/L 26% of the EPA limit 10000 µg/L Main supplier: GLEN HELEN WATER SYSTEM · 5,900 people · 2019 | 1/1 | SYR4 |
| Fluoride | 1048 µg/L 26% of the EPA limit 4000 µg/L Main supplier: GLEN HELEN WATER SYSTEM · 5,900 people · 2019 | 1/1 | SYR4 |
| Lithium | 44 µg/L No EPA limit set Main supplier: GLEN HELEN WATER SYSTEM · 5,900 people · 2023 | 1/1 | UCMR-5 |
| Combined Uranium | 4.9766 µg/L 17% of the EPA limit 30 µg/L Main supplier: GLEN HELEN WATER SYSTEM · 5,900 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0080 mg/L 53% of the EPA limit 0.0150 mg/L Main supplier: GLEN HELEN WATER SYSTEM · 5,900 people · 2024 | 1/1 | LCR |
| PFHXS | 0.0062 µg/L No EPA limit set Main supplier: GLEN HELEN WATER SYSTEM · 5,900 people · 2023 | 1/1 | UCMR-5 |
| Pfpea | 0.0056 µg/L No EPA limit set Main supplier: GLEN HELEN WATER SYSTEM · 5,900 people · 2023 | 1/1 | UCMR-5 |
| Pfhxa | 0.0035 µg/L No EPA limit set Main supplier: GLEN HELEN WATER SYSTEM · 5,900 people · 2023 | 1/1 | UCMR-5 |
| PFBS | 0.0032 µg/L No EPA limit set Main supplier: GLEN HELEN WATER SYSTEM · 5,900 people · 2023 | 1/1 | UCMR-5 |
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 92415
| Supplier | State | Population served |
|---|---|---|
| GLEN HELEN WATER SYSTEM | CA | 5,900 |
Frequently asked questions about ZIP 92415 tap water
Is the tap water in ZIP 92415 safe to drink?
EPA testing detected 10 contaminants across the water suppliers serving ZIP 92415. 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 92415?
1 public water supplier report EPA drinking-water monitoring for ZIP 92415. Each is listed above with its population served.
What contaminants are in ZIP 92415's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Lithium, Combined Uranium, and others across this ZIP's suppliers. The full list with levels and sources is above.