What was found in ZIP 34104
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 | 600 µg/L 15% of the EPA limit 4000 µg/L Main supplier: COLLIER COUNTY REGIONAL WTP · 216,993 people · 2017 | 2/2 | SYR4 |
| Nitrate | 99.4 µg/L 1% of the EPA limit 10000 µg/L Main supplier: COLLIER COUNTY REGIONAL WTP · 216,993 people · 2019
Highest in the ZIP: 120 µg/L — NAPLES WATER DEPT · 83,804 people · 2019 | 2/2 | SYR4 |
| Nitrite | 109 µg/L 11% of the EPA limit 1000 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2019 | 1/2 | SYR4 |
| TTHM | 68.09 µg/L 85% of the EPA limit 80 µg/L Main supplier: COLLIER COUNTY REGIONAL WTP · 216,993 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 27.465 µg/L 46% of the EPA limit 60 µg/L Main supplier: COLLIER COUNTY REGIONAL WTP · 216,993 people · 2019
Highest in the ZIP: 30.757 µg/L — NAPLES WATER DEPT · 83,804 people · 2019 | 2/2 | SYR4 |
| Cyanide | 6.6 µg/L 3.3% of the EPA limit 200 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2017 | 1/2 | SYR4 |
| Barium | 3.285 µg/L 0.2% of the EPA limit 2000 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2017 | 1/2 | SYR4 |
| Selenium | 2.7 µg/L 5.4% of the EPA limit 50 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2017 | 1/2 | SYR4 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2017 | 1/2 | SYR4 |
| Dalapon | 1.43 µg/L 0.7% of the EPA limit 200 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2018 | 1/2 | SYR4 |
| Chromium | 0.8000 µg/L 0.8% of the EPA limit 100 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2017 | 1/2 | SYR4 |
| Copper | 0.4000 µg/L 0% of the EPA limit 1300 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2017 | 1/2 | SYR4 |
| Beryllium, Total | 0.2000 µg/L 5% of the EPA limit 4 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2017 | 1/2 | SYR4 |
| Combined Uranium | 0.0998 µg/L 0.3% of the EPA limit 30 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2014 | 1/2 | SYR4 |
| Hexachlorocyclopentadiene | 0.0350 µg/L 0.1% of the EPA limit 50 µg/L Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2017 | 1/2 | SYR4 |
| PFOS | 0.0110 µg/L No EPA limit set Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2023 | 1/2 | UCMR-5 |
| Pfba | 0.0052 µg/L No EPA limit set Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2023 | 1/2 | UCMR-5 |
| Pfpea | 0.0051 µg/L No EPA limit set Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2023 | 1/2 | UCMR-5 |
| PFOA | 0.0042 µg/L No EPA limit set Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2023 | 1/2 | UCMR-5 |
| PFBS | 0.0037 µg/L No EPA limit set Highest in the ZIP: NAPLES WATER DEPT · 83,804 people · 2023 | 1/2 | UCMR-5 |
| Lead | 0.0012 mg/L 8% of the EPA limit 0.0150 mg/L Main supplier: COLLIER COUNTY REGIONAL WTP · 216,993 people · 2023
Highest in the ZIP: 0.0013 mg/L — NAPLES WATER DEPT · 83,804 people · 2023 | 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 34104
| Supplier | State | Population served |
|---|---|---|
| COLLIER COUNTY REGIONAL WTP | FL | 216,993 |
| NAPLES WATER DEPT | FL | 83,804 |
Frequently asked questions about ZIP 34104 tap water
Is the tap water in ZIP 34104 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 34104. 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 34104?
2 public water suppliers report EPA drinking-water monitoring for ZIP 34104. Each is listed above with its population served.
What contaminants are in ZIP 34104's water?
EPA monitoring detected Fluoride, Nitrate, Nitrite, TTHM, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.