Okeechobee, FL · PFAS · forever chemicals

Is There PFAS in Okeechobee Tap Water?

Six PFAS were detected; none is above a federal limit.PFHxS 3 ng/L was detected in Okeechobee water in 2023, below the 10 ng/L federal MCL. Five other PFAS detected here have no federal limit.
  • OKEECHOBEE UTILITY AUTHORITY · PWSID FL4470257
  • Purity Score 87 · Good
  • Confidence: moderate
The measurements · EPA UCMR 5
Every PFAS with a federal limit, for this system
  • PFOAlimit 4 ng/L
    NDNot detected
  • PFOSlimit 4 ng/L
    NDNot detected
  • PFHxSlimit 10 ng/Llimit under EPA review
    3 ng/LDetected
  • PFNAlimit 10 ng/Llimit under EPA review
    NDNot detected
  • HFPO-DA (GenX)limit 10 ng/Llimit under EPA review
    NDNot detected
  • Hazard indexlimit 1 (mixture)limit under EPA review
    Not on recordNot on record
Also detected · no federal limit
  • PFBA 11 ng/L
  • PFPeA 7.8 ng/L
  • PFHxA 6.5 ng/L
  • PFBS 5 ng/L
  • PFHpA 3.7 ng/L
How Okeechobee compares
PFOS across 764 cities with a detected value

Not on the chart: Okeechobee’s PFOS result was below the lab’s reporting limit, so it can’t be placed among the cities that detected it.

In Florida, 99 of 214 city reports had a PFAS sample above a 2024 EPA limit. PFAS across Florida →

City water and your tap

PFAS come with the water, not from your pipes.

Your tap usually reflects the system’s water, but results vary between samples and sources. Only a certified lab test tells you what reaches your glass today.

How to test for PFAS
  1. Source waterWhere PFAS enter
  2. Okeechobee treatmentIn the record
  3. DistributionLittle change
  4. Building plumbingDoesn’t add PFAS
  5. Your tapLab test confirms
In order of priority

What can you do about PFAS?

  1. Read what was tested29 compounds were measured. Check whether the compounds you care about are on the list.What this record covers →Test your tapA certified lab using EPA Method 533 or 537.1 gives a number for your glass.PFAS testing →
  2. Reduce if it’s a concernChoose a filter whose certification names the compound your test found.Treatment options →Follow new resultsPFAS limits and sampling are changing. Get one email when Okeechobee’s record does.Follow Okeechobee →
What this record covers
  • OKEECHOBEE UTILITY AUTHORITY’s water system as a whole, as reported to EPA UCMR 5.
  • 29 PFAS compounds, each with its own result.
  • Samples taken 2023-01-17 to 2023-10-16.
What is unknown
  • The water at your tap today.
  • PFAS not listed in the 29 above were not reported in these records.
  • Levels since the last sample have not been published.
Test your own tap

PFAS testing needs a lab

PFAS are measured in parts per trillion. Home strips can’t read that low, so a certified lab is the only way to get a number for your tap.

Lab test · the number you can act on

Ask for EPA Method 533 or 537.1

These are the methods behind the federal results. Ask which compounds are on the panel, so PFHxS, PFBS and PFHxA are included, and keep the reporting limit with your result.

Find a certified lab in Florida ↗ (opens in a new tab)
No home screening option

Why we don’t list a PFAS test strip

No home strip has been shown to detect PFAS at the levels federal limits use. A mail-in lab kit is the closest at-home option; check that its lab is accredited and that its panel names the compounds you need.

Read your lab results →
Commercial · treatment for the PFAS found

Treatment options for PFAS in Okeechobee

  1. PFHxS · PFBS · PFHxA …
  2. Source-water pathway
  3. RO · carbon · anion exchange
  4. Listing names the compound
  5. Product · none yet
  6. Product · none yet
Compounds
PFHxS 3 ng/L · PFBS 5 ng/L · PFHxA 6.5 ng/L · PFBA 11 ng/L · 2 more
Benchmark
Federal MCL
Regulated PFAS
1 of 5 detected
Household concern
Depends on a tap test
Matching technologyReverse osmosis, activated carbon or anion exchange

Why: these are the technologies certified to reduce PFAS. Certification is compound by compound, so check that a listing names the compound you need to reduce.

  • NSF/ANSI 53 or 58 naming the compound; RO systems often carry it under 53
  • Listing-specific · anion exchange
No drinking-water filter in our catalog is certified for the PFAS found here yetNo product we list has a current certification that names these compounds. Until one does, look in the certifier’s registry for a filter whose listing names the PFAS found here.
No whole-house system in our catalog is certified for the PFAS found here yetNo product we list has a current certification that names these compounds. Until one does, look in the certifier’s registry for a filter whose listing names the PFAS found here.

Looking for regulated PFAS? Filters certified for PFOA and PFOS →

Don’t misread thisBelow a federal limit is still detected, and ND is not zero

PFHxS was detected below its federal limit; a system result is not your tap result. The 23 compounds not detected were below the lab’s reporting limit, which is not the same as zero. And 29 compounds were tested; PFAS not on that list have no result here.

Want a number for your tap?Test for PFAS →
Results as a table29 results with limit, status, sample date and source
PFAS results for OKEECHOBEE UTILITY AUTHORITY (PWSID FL4470257), Okeechobee, FL
CompoundResultLimitStatusSampledSource
Perfluorohexanesulfonic acid (PFHxS)3 ng/L10 ng/L federal MCL (2024)Detected, below its limit2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluorobutanesulfonic acid (PFBS)5 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Detected, below its EPA health advisory2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluorohexanoic acid (PFHxA)6.5 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Detected, below its state limit2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluorobutanoic acid (PFBA)11 ng/LNo federal or state limit; shown for transparencyDetected, no limit2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluoropentanoic acid (PFPeA)7.8 ng/LNo federal or state limit; shown for transparencyDetected, no limit2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluoroheptanoic acid (PFHpA)3.7 ng/LNo federal or state limit; shown for transparencyDetected, no limit2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluorooctanoic acid (PFOA)Not detected (< 4 ng/L)4.0 ng/L federal MCL (2024)Not detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluorooctanesulfonic acid (PFOS)Not detected (< 4 ng/L)4.0 ng/L federal MCL (2024)Not detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluorononanoic acid (PFNA)Not detected (< 4 ng/L)10 ng/L federal MCL (2024)Not detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)Not detected (< 5 ng/L)10 ng/L federal MCL (2024)Not detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)Not detected (< 5 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)Not detected (< 3 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)Not detected (< 5 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)Not detected (< 5 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)Not detected (< 2 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)Not detected (< 3 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)Not detected (< 5 ng/L)No federal or state limit; shown for transparencyNot detected2023-01-17 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)Not detected (< 20 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)Not detected (< 6 ng/L)No federal or state limit; shown for transparencyNot detected2023-01-17 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluorodecanoic acid (PFDA)Not detected (< 3 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluorododecanoic acid (PFDoA)Not detected (< 3 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)Not detected (< 3 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluoroheptanesulfonic acid (PFHpS)Not detected (< 3 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluoro-4-methoxybutanoic acid (PFMBA)Not detected (< 3 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluoro-3-methoxypropanoic acid (PFMPA)Not detected (< 4 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluoropentanesulfonic acid (PFPeS)Not detected (< 4 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluorotetradecanoic acid (PFTA)Not detected (< 8 ng/L)No federal or state limit; shown for transparencyNot detected2023-01-17 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluorotridecanoic acid (PFTrDA)Not detected (< 7 ng/L)No federal or state limit; shown for transparencyNot detected2023-01-17 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Perfluoroundecanoic acid (PFUnA)Not detected (< 2 ng/L)No federal or state limit; shown for transparencyNot detected2023-03-01 to 2023-10-16UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
Questions

PFAS in Okeechobee, answered

Sources used for this analysis2 sources
UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257)View ↗ UCMR5 Analytical Results: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
  1. Publisher: US EPA
  2. Record: UCMR5 Analytical Results
  3. Date: 2026-10-15
  4. Measurement: PFHxS 3 ng/L · PFBS 5 ng/L · PFHxA 6.5 ng/L · PFBA 11 ng/L · PFPeA 7.8 ng/L · PFHpA 3.7 ng/L
  5. Benchmark: 2024 federal MCLs
Lead & Copper Rule 90th-percentile: OKEECHOBEE UTILITY AUTHORITY (FL4470257)View ↗ Lead & Copper Rule 90th-percentile: OKEECHOBEE UTILITY AUTHORITY (FL4470257) (opens in a new tab)
  1. Publisher: US EPA SDWIS
  2. Record: State SDWIS Compliance Record
  3. Date: 2026-10-13
  4. Measurement: not on record
  5. Benchmark: not on record
Is there PFAS in Okeechobee tap water?

Six PFAS were detected; none is above a federal limit. In EPA UCMR 5 testing of OKEECHOBEE UTILITY AUTHORITY (2023-01-17 to 2023-10-16): PFHxS 3 ng/L (limit 10), PFBS 5 ng/L (EPA health advisory 2,000), PFHxA 6.5 ng/L (state limit 400,000), PFBA 11 ng/L (no federal or state limit), PFPeA 7.8 ng/L (no federal or state limit), PFHpA 3.7 ng/L (no federal or state limit) and the other 23 PFAS tested not detected. "Not detected" means below the lab's reporting limit, not proven zero.

What are the federal PFAS limits?

EPA's 2024 drinking-water rule set maximum contaminant levels of 4.0 ng/L for PFOA and for PFOS, and 10 ng/L for PFHxS, PFNA and HFPO-DA (GenX). In May 2026 EPA proposed keeping the PFOA and PFOS limits, with the option of until 2031 to comply, and rescinding the other three. Until a final rule, all five limits apply. The 2024 rule also set a Hazard Index of 1 for mixtures of two or more of PFHxS, PFNA, GenX and PFBS; EPA has proposed rescinding it, and it applies until a final rule.

Are the other PFAS found in Okeechobee regulated?

No. They have no federal drinking-water limit (MCL); the 2024 rule sets limits only for PFOA, PFOS, PFHxS, PFNA and HFPO-DA (GenX). PFBS has no limit of its own; the 2024 rule counts it only inside the Hazard Index for mixtures, which EPA has proposed rescinding. PFBS has an EPA health advisory of 2,000 ng/L, a screening level, not a legal limit. PFHxA has a 400,000 ng/L state limit. Okeechobee's results: PFBS 5 ng/L, PFHxA 6.5 ng/L, PFBA 11 ng/L, PFPeA 7.8 ng/L and PFHpA 3.7 ng/L.

Does "not detected" mean zero PFAS?

No. "Not detected" (ND) means the result was below the lab's reporting limit, not that the compound is absent. In Okeechobee's record, 23 of the 29 PFAS tested were not detected. Their reporting limits run from 2 to 20 ng/L.

Which PFAS were tested in Okeechobee?

29 PFAS compounds in EPA UCMR 5 testing of OKEECHOBEE UTILITY AUTHORITY (2023-01-17 to 2023-10-16), including the five with federal limits. PFHxS, PFBS, PFHxA, PFBA, PFPeA and PFHpA were detected. PFAS not on that list have no result here.

Can my tap have different PFAS levels than the city report?

Yes. These results describe the water system as a whole, and levels vary between samples and sources over time. PFAS come with the water rather than from home plumbing, so your tap usually reflects the system's water, but only a certified lab test of your own tap gives a number for your glass.

How do I test my tap for PFAS?

Use a state-certified lab that runs EPA Method 533 or 537.1, the methods behind the federal results. Ask which compounds are on the panel, so PFHxS, PFBS and PFHxA are included, and keep the reporting limit with your result. No home test strip has been shown to detect PFAS at the levels federal limits use.

What filter removes PFAS from Okeechobee water?

Reverse osmosis, activated carbon and anion exchange can reduce PFAS, but certification is compound by compound. Look for NSF/ANSI 53 or 58 naming the compound; RO systems often carry it under 53. Choose a model whose current listing names the compound you need to reduce, here PFHxS, PFBS and PFHxA, check it in the certifier's listing (NSF, WQA or IAPMO), and replace cartridges on schedule.

Is there a filter certified for PFHxS, PFBS and PFHxA?

Look for PFHxS, PFBS and PFHxA by name in the certifier's listing (NSF, WQA or IAPMO) for the exact model: NSF/ANSI 53 and 58 listings name each PFAS a filter was tested to reduce. A listing for PFOA and PFOS alone does not cover PFHxS, PFBS and PFHxA.

When must Okeechobee meet the PFAS limits?

Compliance with the 2024 limits is judged on a running annual average, with a compliance date of 2029 (EPA has proposed allowing until 2031 for PFOA and PFOS). EPA has proposed rescinding the PFHxS, PFNA, GenX and Hazard Index limits; they apply until a final rule.