Forensic evidence record · ev-tx0910006-f-sherman-pfba

Perfluorobutanoic acid (PFBA)

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

Published evidence record

8.3 ng/LReported measurement

Back to water-system profile

8.3 ng/Lreported result

Not verified from sourcereporting limit

Sample date: 2023-02-08 to 2023-11-20sample date

2026-01-15publication date

Source observations (22)

PFBA — Sample date: 2023-02-08
Detected at or below reporting limit. = 0.005 µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2304950001 · Method EPA 533
PFBA — Sample date: 2023-05-16
Detected above reporting limit. = 0.0076 µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2318501005 · Method EPA 533
PFBA — Sample date: 2023-08-14
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2333660001 · Method EPA 533
PFBA — Sample date: 2023-11-20
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2349683001 · Method EPA 533
PFBA — Sample date: 2023-02-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2304950003 · Method EPA 533
PFBA — Sample date: 2023-08-14
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2333660003 · Method EPA 533
PFBA — Sample date: 2023-02-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2304950005 · Method EPA 533
PFBA — Sample date: 2023-08-14
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2333660005 · Method EPA 533
PFBA — Sample date: 2023-02-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2304950007 · Method EPA 533
PFBA — Sample date: 2023-08-14
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2333660007 · Method EPA 533
PFBA — Sample date: 2023-05-16
Detected above reporting limit. = 0.0083 µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2318501002 · Method EPA 533
PFBA — Sample date: 2023-11-20
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2349683003 · Method EPA 533
PFBA — Sample date: 2023-02-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2304950009 · Method EPA 533
PFBA — Sample date: 2023-11-20
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2349683007 · Method EPA 533
PFBA — Sample date: 2023-02-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2304950011 · Method EPA 533
PFBA — Sample date: 2023-08-14
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2333660009 · Method EPA 533
PFBA — Sample date: 2023-02-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2304950013 · Method EPA 533
PFBA — Sample date: 2023-08-14
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2333660011 · Method EPA 533
PFBA — Sample date: 2023-08-14
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2333661001 · Method EPA 533
PFBA — Sample date: 2023-11-20
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2349683005 · Method EPA 533
PFBA — Sample date: 2023-02-08
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2304950015 · Method EPA 533
PFBA — Sample date: 2023-08-14
Below reporting limit. < Result value not available µg/L
Reporting limit: 0.005 µg/L. Detection limit: Not available. Benchmark unavailable
Source: src-ucmr5-2024 · UCMR5_All.txt · Sample Q2333660013 · Method EPA 533

Measurement evidence

Analyte: Perfluorobutanoic acid (PFBA)
Result qualifier: =
Reference basis: No federal or state limit; shown for transparency
Sampling location: Entry Point to Distribution
Water system ID: TX0910006
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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Related intelligence

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