What was found in ZIP 92135
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 |
|---|---|---|---|
| TTHM | 31.9 µg/L 40% of the EPA limit 80 µg/L Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2019 | 1/1 | SYR4 |
| Lithium | 28.8 µg/L No EPA limit set Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2025 | 1/1 | UCMR-5 |
| Trichloroacetic Acid | 23.25 µg/L No EPA limit set Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 12.9 µg/L No EPA limit set Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 9.99 µg/L 17% of the EPA limit 60 µg/L Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 9.8 µg/L No EPA limit set Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2019 | 1/1 | SYR4 |
| Bromoform | 7.7 µg/L No EPA limit set Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2019 | 1/1 | SYR4 |
| Chloroform | 5.99 µg/L No EPA limit set Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 5.16 µg/L No EPA limit set Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 3.895 µg/L No EPA limit set Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.1 µg/L No EPA limit set Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: NAS NORTH ISLAND & NAB CORONADO · 36,990 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 92135
| Supplier | State | Population served |
|---|---|---|
| NAS NORTH ISLAND & NAB CORONADO | CA | 36,990 |
Frequently asked questions about ZIP 92135 tap water
Is the tap water in ZIP 92135 safe to drink?
EPA testing detected 12 contaminants across the water suppliers serving ZIP 92135. 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 92135?
1 public water supplier report EPA drinking-water monitoring for ZIP 92135. Each is listed above with its population served.
What contaminants are in ZIP 92135's water?
EPA monitoring detected TTHM, Lithium, Trichloroacetic Acid, Dibromochloromethane, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.