PFAS Analyte · UCMR 5
NFDHA
Nonafluoro-3,6-dioxaheptanoic acid
CAS 151772-58-6· UCMR 5· No individual MCL set
4
Systems monitored
with official records
4
Systems with detections
100.0% detection rate
5
Detected samples
of 5 total samples
Apr 2023 – Apr 2025
Monitoring period
per UCMR 5 schedule
Detection Rate — NFDHA
Systems with any detection100.0%
4 of 4 monitored systems
Sample-level detection rate100.0%
5 detections across 5 total samples
States with Most NFDHA Detections
Water Systems with Most NFDHA Detections
Systems ranked by number of samples detected above the minimum reporting limit. Detection count reflects monitoring frequency, not concentration level.
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.
NFDHA at a Glance
Full NameNonafluoro-3,6-dioxaheptanoic acid
CAS Number151772-58-6
UCMR RoundUCMR 5
EPA MCLSee mixture rule
Systems Monitored4
Systems Detected4
Detection Rate100.0%
Note
No MCL as of April 2024.