What was found in ZIP 33401
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 |
|---|---|---|---|
| Fluoride | 828 µg/L 21% of the EPA limit 4000 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2017 | 2/2 | SYR4 |
| Nitrate | 530 µg/L 5.3% of the EPA limit 10000 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2019 | 2/2 | SYR4 |
| TTHM | 82.85 µg/L 104% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 47.08 µg/L 78% of the EPA limit 60 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2019 | 2/2 | SYR4 |
| Nitrite | 41.5 µg/L 4.2% of the EPA limit 1000 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2019 | 2/2 | SYR4 |
| Copper | 33.26 µg/L 2.6% of the EPA limit 1300 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2017 | 2/2 | SYR4 |
| Barium | 7.15 µg/L 0.4% of the EPA limit 2000 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2017
Highest in the ZIP: 22.8 µg/L — WEST PALM BEACH WTP · 132,000 people · 2019 | 2/2 | SYR4 |
| Cyanide | 5.6 µg/L 2.8% of the EPA limit 200 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2017
Highest in the ZIP: 7.99 µg/L — WEST PALM BEACH WTP · 132,000 people · 2019 | 2/2 | SYR4 |
| Chromium | 2.54 µg/L 2.5% of the EPA limit 100 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2017 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7085 µg/L 12% of the EPA limit 6 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2019
Highest in the ZIP: 1.57 µg/L — WEST PALM BEACH WTP · 132,000 people · 2019 | 2/2 | SYR4 |
| Arsenic | 1.545 µg/L 15% of the EPA limit 10 µg/L Highest in the ZIP: WEST PALM BEACH WTP · 132,000 people · 2019 | 1/2 | SYR4 |
| Chlorobenzene | 0.5730 µg/L 0.6% of the EPA limit 100 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2019 | 1/2 | SYR4 |
| Oxamyl | 0.4800 µg/L 0.2% of the EPA limit 200 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2017 | 1/2 | SYR4 |
| Combined Uranium | 0.2593 µg/L 0.9% of the EPA limit 30 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2017 | 1/2 | SYR4 |
| Mercury | 0.2000 µg/L 10% of the EPA limit 2 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2017 | 1/2 | SYR4 |
| Picloram | 0.0940 µg/L 0% of the EPA limit 500 µg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2017 | 1/2 | SYR4 |
| PFOS | 0.0200 µg/L No EPA limit set Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2025 | 1/2 | UCMR-5 |
| 6:2 Fts | 0.0130 µg/L No EPA limit set Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2025 | 1/2 | UCMR-5 |
| Pfba | 0.0050 µg/L No EPA limit set Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2025
Highest in the ZIP: 0.0111 µg/L — WEST PALM BEACH WTP · 132,000 people · 2024 | 2/2 | UCMR-5 |
| PFOA | 0.0090 µg/L No EPA limit set Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2025 | 1/2 | UCMR-5 |
| Pfpea | 0.0077 µg/L No EPA limit set Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2025 | 2/2 | UCMR-5 |
| Pfhxa | 0.0065 µg/L No EPA limit set Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2025 | 2/2 | UCMR-5 |
| PFHXS | 0.0064 µg/L No EPA limit set Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2025 | 1/2 | UCMR-5 |
| PFBS | 0.0061 µg/L No EPA limit set Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2025 | 2/2 | UCMR-5 |
| Pfhpa | 0.0031 µg/L No EPA limit set Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2025
Highest in the ZIP: 0.0032 µg/L — WEST PALM BEACH WTP · 132,000 people · 2024 | 2/2 | UCMR-5 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L Main supplier: PALM BEACH COUNTY WATER UTILITIES · 671,114 people · 2023
Highest in the ZIP: 0.0030 mg/L — WEST PALM BEACH WTP · 132,000 people · 2025 | 2/2 | 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 33401
| Supplier | State | Population served |
|---|---|---|
| PALM BEACH COUNTY WATER UTILITIES | FL | 671,114 |
| WEST PALM BEACH WTP | FL | 132,000 |
Frequently asked questions about ZIP 33401 tap water
Is the tap water in ZIP 33401 safe to drink?
EPA testing detected 26 contaminants across the water suppliers serving ZIP 33401. 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 33401?
2 public water suppliers report EPA drinking-water monitoring for ZIP 33401. Each is listed above with its population served.
What contaminants are in ZIP 33401's water?
EPA monitoring detected Fluoride, Nitrate, TTHM, Total Haloacetic Acids (HAA5), Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.