Key West, Florida Water Quality Report
Water quality data for 1 water system serving 86,000 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.010 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.023 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHpA | 0.003 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.003 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxS | 0.003 | 0.010 ug/L | 0.001 ug/L(EWG) | 34% | Within limit |
| PFOA | 0.010 | 0.004 ug/L | 0.090 ug/L(EWG) | 248% | Above limit |
| PFOS | 0.050 | 0.004 ug/L | 0.300 ug/L(EWG) | 1258% | Above limit |
| PFPeA | 0.004 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (13)
72
Jul 1, 2023
52
Jan 1, 2021
52
Jan 1, 2017
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (10)
3A
Mar 1, 2025 — Mar 31, 2025
3A
Sep 1, 2024 — Sep 30, 2024
3A
Aug 1, 2024 — Aug 31, 2024
3A
Jun 1, 2024 — Jun 30, 2024
3A
Nov 1, 2023 — Nov 30, 2023
+ 5 more resolved violations
Frequently Asked Questions
Is Key West tap water safe to drink?
Key West's water has 2 contaminants detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Key West tap water?
8 contaminants have been detected in Key West's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Key West?
Install a water filter rated for the specific contaminants found in Key West's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Key West have any water quality violations?
Yes, Key West currently has 13 active violations. See the violations section above for details.