PFAS concern carried
Carnot-Moon, PA · PFAS · forever chemicals

Is There PFAS in Carnot-Moon Tap Water?

Carnot-Moon, PA: PFOS 10 ng/L, 3× EPA's 4 ng/L limit. Every PFAS result and filter certifications per compound.

The measurements · EPA UCMR 5

3 of 29 PFAS detected

Each result is read against its own reference. Only PFOS and PFHxS have federal limits.

  • PFOSFederal MCL
    Perfluorooctanesulfonic acid
    10ng/L
    04 ng/L federal MCL (2024)
    Above its limit · sampled 2024-10-29 to 2025-07-23Evidence
  • PFHxSFederal MCL
    Perfluorohexanesulfonic acid
    7ng/L
    010 ng/L federal MCL (2024)
    Detected, below its limit · limit under EPA review · sampled 2024-10-29 to 2025-07-23Evidence
  • PFHxAState MCL · Michigan
    Perfluorohexanoic acid
    3.4ng/L
    0400,000 ng/L Michigan EGLE state MCL (strictest US state)
    Detected, below its state limit · sampled 2024-10-29 to 2025-07-23Evidence
All 29 compounds in this record
  • PFOAMCL
    Not detected
  • PFOSMCL
    10 ng/L
  • PFHxSMCL
    7 ng/L
  • PFNAMCL
    Not detected
  • HFPO-DA (GenX)MCL
    Not detected
  • PFHxA
    3.4 ng/L
  • 11Cl-PF3OUdS
    Not detected
  • 4:2 FTS
    Not detected
  • 6:2 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
  • PFBS
    Not detected
  • PFDA
    Not detected
  • PFDoA
    Not detected
  • PFEESA
    Not detected
  • PFHpA
    Not detected
  • PFHpS
    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 MOON TWP MUNI AUTH (PWSID PA5020011), Carnot-Moon, PA
ContaminantResultLimitStatusSampledSource
Perfluorooctanesulfonic acid (PFOS)10 ng/L4.0 ng/L federal MCL (2024)Above a historical reference; current applicability unverified2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluorohexanesulfonic acid (PFHxS)7 ng/L10 ng/L federal MCL (2024)Within a historical reference; current applicability unverified2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluorohexanoic acid (PFHxA)3.4 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Within a historical reference; current applicability unverified2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluorobutanesulfonic acid (PFBS)< 3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limitNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluorobutanoic acid (PFBA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)Not detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-10-29 to 2025-07-23UCMR5 Analytical Results: MOON TWP MUNI AUTH (PA5020011)
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 Carnot-Moon sits10 ng/L PFOSHigher than 65% of 764 cities with a detected value.
In Pennsylvania
41of 122 city reports

have a regulated PFAS above the federal limit.

PFAS across Pennsylvania →
What this record covers
  • MOON TWP MUNI AUTH's water system as a whole, as reported to EPA UCMR 5.
  • 29 PFAS compounds, each with its own result.
  • Samples taken 2024-10-29 to 2025-07-23.
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.

Identified concerns
  • PFOS · exceeds the limit
  • PFHxA · detected below the limit
  • PFHxS · detected below the limit
9 products have a current certification naming a PFAS detected here.See PFAS filters, checked compound by compound ↓
Commercial · PFAS filters

Fit for Carnot-Moon’s PFAS, compound by compound

Each filter is checked against the 3 PFAS detected here. A ✓ needs a current certification record that names the compound. A PFAS claim on the box is not enough.

As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.

  • Certified for this compound
  • Claimed or likely, not established
  • No claim on record
Under-Sink Filter

Aquasana Claryum 2-Stage Under-Sink Filter (AQ-5200)

Activated Carbon (Claryum)
Detected in Carnot-Moon1 of 3 certified
  • PFOS10 ng/L✓Certified for this compound
  • PFHxA3.4 ng/L–No claim on record
  • PFHxS7 ng/L–No claim on record
CertifiedNSF/ANSI 53 · PFOA, PFOS

Certified for PFOS; not established for PFHxA, PFHxS.

Under-Sink Filter

Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M)

Activated Carbon (Claryum)
Detected in Carnot-Moon1 of 3 certified
  • PFOS10 ng/L✓Certified for this compound
  • PFHxA3.4 ng/L–No claim on record
  • PFHxS7 ng/L–No claim on record
CertifiedNSF/ANSI 53 · PFOA, PFOSNSF/ANSI 42

Certified for PFOS; not established for PFHxA, PFHxS.

Countertop System

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

Activated Carbon (Claryum)
Detected in Carnot-Moon1 of 3 certified
  • PFOS10 ng/L✓Certified for this compound
  • PFHxA3.4 ng/L–No claim on record
  • PFHxS7 ng/L–No claim on record
CertifiedNSF/ANSI 53 · PFOA, PFOSNSF/ANSI 42

Certified for PFOS; not established for PFHxA, PFHxS.

Countertop System

Patriot Pure Ultimate Water Filtration System

Gravity pour-through (Nanomesh filter)
Detected in Carnot-Moon1 of 3 certified
  • PFOS10 ng/L✓Certified for this compound
  • PFHxA3.4 ng/L–No claim on record
  • PFHxS7 ng/L–No claim on record
CertifiedNSF/ANSI 53 · PFOA, PFOS

Certified for PFOS; not established for PFHxA, PFHxS.

Countertop System

AquaTru Carafe Countertop Reverse-Osmosis Purifier (AT100)

Reverse Osmosis
Detected in Carnot-Moon1 of 3 certified
  • PFOS10 ng/L✓Certified for this compound
  • PFHxA3.4 ng/L–No claim on record
  • PFHxS7 ng/L–No claim on record
CertifiedNSF/ANSI 58NSF/ANSI 53 · PFOA, PFOSNSF/ANSI 42

Certified for PFOS; not established for PFHxA, PFHxS.

Countertop System

AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)

Reverse Osmosis
Detected in Carnot-Moon1 of 3 certified
  • PFOS10 ng/L✓Certified for this compound
  • PFHxA3.4 ng/L–No claim on record
  • PFHxS7 ng/L–No claim on record
CertifiedNSF/ANSI 58NSF/ANSI 53 · PFOA, PFOSNSF/ANSI 42

Certified for PFOS; not established for PFHxA, PFHxS.

Under-Sink Filter

Waterdrop G3P600 Tankless Reverse-Osmosis System

Reverse Osmosis
Detected in Carnot-Moon1 of 3 certified
  • PFOS10 ng/L✓Certified for this compound
  • PFHxA3.4 ng/L–No claim on record
  • PFHxS7 ng/L–No claim on record
CertifiedNSF/ANSI 58NSF/ANSI 53 · PFOA, PFOSNSF/ANSI 42

Certified for PFOS; not established for PFHxA, PFHxS.

Under-Sink Filter

Waterdrop G3P800 Tankless Reverse-Osmosis System

Reverse Osmosis
Detected in Carnot-Moon1 of 3 certified
  • PFOS10 ng/L✓Certified for this compound
  • PFHxA3.4 ng/L–No claim on record
  • PFHxS7 ng/L–No claim on record
CertifiedNSF/ANSI 53 · PFOA, PFOSNSF/ANSI 58NSF/ANSI 42

Certified for PFOS; not established for PFHxA, PFHxS.

Refrigerator Filter

Whirlpool Filter 3 Refrigerator Water Filter (WHR3RXD1)

Activated Carbon
Detected in Carnot-Moon1 of 3 certified
  • PFOS10 ng/L✓Certified for this compound
  • PFHxA3.4 ng/L–No claim on record
  • PFHxS7 ng/L–No claim on record
CertifiedNSF/ANSI 53 · PFOA, PFOSNSF/ANSI 42NSF/ANSI 401

Certified for PFOS; not established for PFHxA, PFHxS.

None of these is certified for all 3 compounds detected here. A tap test first tells you which ones reach your glass.
Questions

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Is there PFAS in Carnot-Moon tap water?

In EPA's UCMR 5 testing of MOON TWP MUNI AUTH (2024-10-29 to 2025-07-23): PFHxA 3.4 ng/L (state limit 400,000), PFHxS 7 ng/L (limit 10), PFOS 10 ng/L (limit 4) and the other 26 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: MOON TWP MUNI AUTH (PA5020011)US EPA · 2026-01-15View source ↗
  • State SDWIS Compliance RecordLead & Copper Rule 90th-percentile: MOON TWP MUNI AUTH (PA5020011)US EPA SDWIS · 2026-07-09View source ↗