PFAS Analyte · UCMR 5

9Cl-PF3ONS

9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid

CAS 756426-58-1· UCMR 5· No individual MCL set
1
Systems monitored
with official records
1
Systems with detections
100.0% detection rate
1
Detected samples
of 1 total samples
Feb 2024 – Feb 2024
Monitoring period
per UCMR 5 schedule

Detection Rate — 9Cl-PF3ONS

Systems with any detection100.0%

1 of 1 monitored systems

Sample-level detection rate100.0%

1 detections across 1 total samples

States with Most 9Cl-PF3ONS Detections

1
OK

Oklahoma

1 detection

Water Systems with Most 9Cl-PF3ONS Detections

Systems ranked by number of samples detected above the minimum reporting limit. Detection count reflects monitoring frequency, not concentration level.

1

Ponca City Mun Water

OK1021202 · OK · 27,155 served

1 detected

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.

9Cl-PF3ONS at a Glance

Full Name9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid
CAS Number756426-58-1
UCMR RoundUCMR 5
EPA MCLSee mixture rule
Systems Monitored1
Systems Detected1
Detection Rate100.0%

Note

No MCL as of April 2024.

EPA PFAS Drinking Water RegulationEPA UCMR 5 Source Data Back to PFAS Watchlist