Forensic evidence record · ev-ok1020723-f-edmond-pfhxs

Perfluorohexanesulfonic acid (PFHxS)

A single published measurement record with its qualifier, sampling context, source identifier, method note, and stated limitations kept together.

Published evidence record

4.5 ng/LReported measurement

Back to water-system profile

4.5 ng/Lreported result

Not verified from sourcereporting limit

Sample date: 2024-04-15 to 2025-01-07sample date

2026-01-15publication date

Source observations (37)

PFHxS — Sample date: 2024-04-15
Detected above reporting limit. = 0.0035 µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-33B · Method EPA 533
PFHxS — Sample date: 2024-07-09
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GG09079-01B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-33B · Method EPA 533
PFHxS — Sample date: 2025-01-07
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample HA07090-01C · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-31B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-31B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-01B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-01B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Detected above reporting limit. = 0.0045 µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-03B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-03B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-05B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-05B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-07B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-07B · Method EPA 533
PFHxS — Sample date: 2024-05-06
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GE08138-01B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-09B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-09B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-11B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-11B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-13B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-13B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-15B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-15B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-17E · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-17B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Detected above reporting limit. = 0.0044 µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-19B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Detected above reporting limit. = 0.0033 µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-19B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-21B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-21B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-23B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-23B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-25B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-25B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-27B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-27B · Method EPA 533
PFHxS — Sample date: 2024-04-15
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GD16021-29B · Method EPA 533
PFHxS — Sample date: 2024-10-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.003 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample GJ09167-29B · Method EPA 533

Measurement evidence

Analyte: Perfluorohexanesulfonic acid (PFHxS)
Result qualifier: =
Reference basis: 10.0 ng/L federal MCL (2024)
Sampling location: Entry Point to Distribution
Water system ID: OK1020723
Source ID: src-ucmr5-2024

Laboratory context

No laboratory method note was published with this record.

Sampling context

This result represents a entry point to distribution sample. It does not establish the condition at every distribution point or household tap.

Record limitation

System-level entry-point monitoring; not a measurement of the water at an individual household tap.

Source provenance

UCMR5 Analytical Results

Fifth Unregulated Contaminant Monitoring Rule (UCMR5) — PFAS occurrence data

U.S. Environmental Protection Agency · Published 2024

Nationwide entry-point monitoring for 29 PFAS and lithium under the fifth UCMR cycle. Results are entry-point-to-distribution samples, not household-tap measurements.

Open source profile →Original record

How to interpret this record

This page preserves one measurement. Interpretation requires its qualifier, reporting limit, reference basis, date, sampling location, and limitations; the number alone is not a safety verdict.

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