What was found in ZIP 93933
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: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Nitrate | 5600 µg/L 56% of the EPA limit 10000 µg/L Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Fluoride | 270 µg/L 6.8% of the EPA limit 4000 µg/L Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Cyanide | 100 µg/L 50% of the EPA limit 200 µg/L Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Lithium | 40.9 µg/L No EPA limit set Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2023 | 1/1 | UCMR-5 |
| TTHM | 8.815 µg/L 11% of the EPA limit 80 µg/L Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Arsenic | 7.72 µg/L 77% of the EPA limit 10 µg/L Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Selenium | 6.34 µg/L 13% of the EPA limit 50 µg/L Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 5.662 µg/L 19% of the EPA limit 30 µg/L Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Bromoform | 5.505 µg/L No EPA limit set Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 2.945 µg/L No EPA limit set Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Dichloromethane | 2.9 µg/L 58% of the EPA limit 5 µg/L Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 1.7 µg/L 34% of the EPA limit 5 µg/L Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.51 µg/L No EPA limit set Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 1.19 µg/L No EPA limit set Main supplier: MARINA COAST WATER DISTRICT · 38,377 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: MARINA COAST WATER DISTRICT · 38,377 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 93933
| Supplier | State | Population served |
|---|---|---|
| MARINA COAST WATER DISTRICT | CA | 38,377 |
Frequently asked questions about ZIP 93933 tap water
Is the tap water in ZIP 93933 safe to drink?
EPA testing detected 16 contaminants across the water suppliers serving ZIP 93933. 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 93933?
1 public water supplier report EPA drinking-water monitoring for ZIP 93933. Each is listed above with its population served.
What contaminants are in ZIP 93933's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Cyanide, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.