PFAS Analyte · UCMR 5
PFOS-br
Branched Perfluorooctane sulfonic acid isomers
· UCMR 5· No individual MCL set
0
Systems monitored
with official records
0
Systems with detections
0.0% detection rate
0
Detected samples
of 0 total samples
— – —
Monitoring period
per UCMR 5 schedule
Detection Rate — PFOS-br
Systems with any detection0.0%
0 of 0 monitored systems
Sample-level detection rate0.0%
0 detections across 0 total samples
No detections above MRL in dataset
No official UCMR 5 records for PFOS-br show a result above the minimum reporting limit. This does not establish that PFOS-br is absent — it means no qualifying detection was reported.
All records are from official EPA UCMR 5 monitoring data. Detection counts reflect the number of samples where the analyte was reported above the minimum reporting limit (MRL). They are not compliance determinations and do not imply a health violation.
PFOS-br at a Glance
Full NameBranched Perfluorooctane sulfonic acid isomers
UCMR RoundUCMR 5
EPA MCLSee mixture rule
Systems Monitored0
Systems Detected0
Detection Rate0.0%
Note
Branched isomers of PFOS. No separate MCL; part of PFOS grouping under April 2024 rule.