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PFAS concern carried
Zanesville, OH · PFAS · forever chemicals

Is There PFAS in Zanesville Tap Water?

Zanesville, OH: PFBS 3.1 ng/L detected, below the 2,000 ng/L EPA health advisory, in 2024 testing. Every PFAS result and filter certifications per compound.

Full Zanesville water reportTreatment for PFAS
The measurements · EPA UCMR 5

2 of 29 PFAS detected

Each result is read against its own reference. None of the detected compounds has a federal limit. 6:2 FTS has no federal or state limit and is shown for transparency, not graded.

  • PFBSEPA health advisory
    Perfluorobutanesulfonic acid
    3.1ng/L
    02,000 ng/L EPA health advisory (screening, not a legal limit)
    Detected, below its EPA health advisory · sampled 2023-03-23 to 2023-09-20Evidence
  • 6:2 FTSNo limit
    1H, 1H, 2H, 2H-perfluorooctane sulfonic acid
    20.1ng/L

    No federal or state limit: shown for transparency, not graded.

    Detected, no limit · sampled 2023-03-23 to 2023-09-20Evidence
All 29 compounds in this record
  • PFOAMCL
    Not detected
  • PFOSMCL
    Not detected
  • PFHxSMCL
    Not detected
  • PFNAMCL
    Not detected
  • HFPO-DA (GenX)MCL
    Not detected
  • PFBS
    3.1 ng/L
  • 6:2 FTS
    20.1 ng/L
  • 11Cl-PF3OUdS
    Not detected
  • 4:2 FTS
    Not detected
  • 8:2 FTS
    Not detected
  • 9Cl-PF3ONS
    Not detected
  • ADONA
    Not detected
  • NEtFOSAA
    Not detected
  • NFDHA
    Not detected
  • NMeFOSAA
    Not detected
  • PFBA
    Not detected
  • PFDA
    Not detected
  • PFDoA
    Not detected
  • PFEESA
    Not detected
  • PFHpA
    Not detected
  • PFHpS
    Not detected
  • PFHxA
    Not detected
  • PFMBA
    Not detected
  • PFMPA
    Not detected
  • PFPeA
    Not detected
  • PFPeS
    Not detected
  • PFTA
    Not detected
  • PFTrDA
    Not detected
  • PFUnA
    Not detected

MCL marks the 5 PFAS given a federal limit in EPA's 2024 rule. EPA has proposed rescinding three of those limits; they apply until a final rule.

Results as a table29 results with limit, status, sample date and source
PFAS results for ZANESVILLE PWS (PWSID OH6002712), Zanesville, OH
ContaminantResultLimitStatusSampledSource
Perfluorobutanesulfonic acid (PFBS)3.1 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limitWithin the referenced health-based guidance value2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)20.1 ng/LNo federal or state limit; shown for transparencyDetected, no limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluorobutanoic acid (PFBA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Not detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluorooctanesulfonic acid (PFOS)< 4 ng/L4.0 ng/L federal MCL (2024)Not detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)Not detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-03-23 to 2023-09-20UCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)
How this compares

PFOS across 764 cities with a detected value

3,396 more were below the lab's 4 ng/L reporting limit and aren't plotted, and 34 have no result on record. 66 cities above 25 ng/L are grouped in the last bar. A position here is not a verdict on the water.

Where Zanesville sitsNot on the stripZanesville’s PFOS result was below the lab’s reporting limit.
In Ohio
25of 142 city reports

have a regulated PFAS above the federal limit.

PFAS across Ohio →
What this record covers
  • ZANESVILLE PWS's water system as a whole, as reported to EPA UCMR 5.
  • 29 PFAS compounds, each with its own result.
  • Samples taken 2023-03-23 to 2023-09-20.
What is unknown
  • The water at your tap. Building plumbing isn't in this record.
  • PFAS not listed in the 29 above were not reported in these records.
  • Levels since the last sample have not been published.
How to test your tap water at home →
Treatment capabilities that apply

Test first, then match a certified method.

A tap test can confirm levels at your home before you choose treatment.

How to test your tapCompare treatment technologies
Identified concerns
  • PFBS · detected below the limit
  • 6:2 FTS · detected, no federal or state limit
No product in our catalogue has verified certification for these concerns yet.
Questions

Frequently asked

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Is there PFAS in Zanesville tap water?

In EPA's UCMR 5 testing of ZANESVILLE PWS (2023-03-23 to 2023-09-20): 6:2 FTS 20.1 ng/L (no federal or state limit), PFBS 3.1 ng/L (EPA health advisory 2,000) and the other 27 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. Results above them today are above the limits in force.

How do I remove PFAS from my tap water?

Reverse-osmosis systems and filters certified to NSF/ANSI 53 or 58 for PFOA/PFOS reduction are the proven options at the tap. Check the certifier's listing (NSF, WQA or IAPMO) for the exact model, and replace cartridges on schedule.

Sources
  • UCMR5 Analytical ResultsUCMR5 Analytical Results: ZANESVILLE PWS (OH6002712)US EPA · 2026-01-15View source ↗
  • State SDWIS Compliance RecordLead & Copper Rule 90th-percentile: ZANESVILLE PWS (OH6002712)US EPA SDWIS · 2026-07-09View source ↗