What was found in ZIP 92252
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 | 6000 µg/L 60% of the EPA limit 10000 µg/L Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 5855 µg/L 59% of the EPA limit 10000 µg/L Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Fluoride | 1000 µg/L 25% of the EPA limit 4000 µg/L Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Chromium | 39.4 µg/L 39% of the EPA limit 100 µg/L Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| TTHM | 17.05 µg/L 21% of the EPA limit 80 µg/L Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Lithium | 13.7 µg/L No EPA limit set Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2025 | 1/1 | UCMR-5 |
| Bromoform | 6.915 µg/L No EPA limit set Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 6.65 µg/L No EPA limit set Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Arsenic | 5.46 µg/L 55% of the EPA limit 10 µg/L Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 2.975 µg/L No EPA limit set Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.555 µg/L No EPA limit set Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.555 µg/L 2.6% of the EPA limit 60 µg/L Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Chloroform | 1.355 µg/L No EPA limit set Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0110 mg/L 73% of the EPA limit 0.0150 mg/L Main supplier: JOSHUA BASIN WATER DISTRICT · 6,640 people · 2025 | 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 92252
| Supplier | State | Population served |
|---|---|---|
| JOSHUA BASIN WATER DISTRICT | CA | 6,640 |
Frequently asked questions about ZIP 92252 tap water
Is the tap water in ZIP 92252 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 92252. 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 92252?
1 public water supplier report EPA drinking-water monitoring for ZIP 92252. Each is listed above with its population served.
What contaminants are in ZIP 92252's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Chromium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.