Official PFAS Records — CA

City of Fresno

Name: City of Fresno PFAS Monitoring Records — EPA UCMR 5
Creator: Water Utility Report

PWSID: CA1010007FresnoView full utility profile

Source data retrieved: April 20, 2026

UCMR 5 monitoring results are not compliance determinations. Detection does not imply regulatory violation or health risk determination. Methodology

Official EPA UCMR 5 PFAS monitoring records for City of Fresno. This page shows only government-reported test results — no risk scores or compliance judgments are generated.

UCMR 5 monitoring recordsAvailable

Official detections above MRLAvailable

Enforcement context recordsNot in current records

Official Record Summary

Official EPA monitoring records show 213 PFAS results for this water system in the UCMR 5 dataset. 213 results reported as detected above the minimum reporting limit.

PFAS Monitoring Records

Analyte	Result	Status	Sample Date	Sample Point	Source
PFHpA Perfluoroheptanoic acid	0.0038 µg/L MRL: 0.003	Official detection	Aug 15, 2024	1010007773	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0077 µg/L MRL: 0.003	Official detection	Aug 15, 2024	1010007773	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0032 µg/L MRL: 0.003	Official detection	Aug 15, 2024	1010007776	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0061 µg/L MRL: 0.004	Official detection	Aug 15, 2024	1010007773	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0048 µg/L MRL: 0.004	Official detection	Aug 15, 2024	1010007776	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0049 µg/L MRL: 0.004	Official detection	Aug 15, 2024	1010007776	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0040 µg/L MRL: 0.003	Official detection	Aug 15, 2024	1010007776	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.010 µg/L MRL: 0.003	Official detection	Aug 15, 2024	1010007773	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0035 µg/L MRL: 0.003	Official detection	Aug 14, 2024	1010007744	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.0041 µg/L MRL: 0.003	Official detection	Aug 14, 2024	1010007953	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.0032 µg/L MRL: 0.003	Official detection	Aug 14, 2024	1010007744	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0075 µg/L MRL: 0.003	Official detection	Aug 14, 2024	1010007953	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0053 µg/L MRL: 0.003	Official detection	Aug 14, 2024	1010007744	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0040 µg/L MRL: 0.003	Official detection	Aug 14, 2024	1010007953	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0049 µg/L MRL: 0.004	Official detection	Aug 14, 2024	1010007850	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.012 µg/L MRL: 0.004	Official detection	Aug 14, 2024	1010007953	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0093 µg/L MRL: 0.004	Official detection	Aug 14, 2024	1010007744	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0064 µg/L MRL: 0.004	Official detection	Aug 14, 2024	1010007827	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0042 µg/L MRL: 0.004	Official detection	Aug 14, 2024	1010007747	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0095 µg/L MRL: 0.004	Official detection	Aug 14, 2024	1010007953	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0053 µg/L MRL: 0.004	Official detection	Aug 14, 2024	1010007744	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0084 µg/L MRL: 0.004	Official detection	Aug 14, 2024	1010007850	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0050 µg/L MRL: 0.003	Official detection	Aug 14, 2024	1010007744	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0032 µg/L MRL: 0.003	Official detection	Aug 14, 2024	1010007861	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0067 µg/L MRL: 0.003	Official detection	Aug 14, 2024	1010007953	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0034 µg/L MRL: 0.003	Official detection	Aug 13, 2024	1010007743	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0030 µg/L MRL: 0.003	Official detection	Aug 13, 2024	1010007844	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0051 µg/L MRL: 0.004	Official detection	Aug 13, 2024	1010007844	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0049 µg/L MRL: 0.004	Official detection	Aug 13, 2024	1010007743	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0042 µg/L MRL: 0.003	Official detection	Aug 13, 2024	1010007743	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0046 µg/L MRL: 0.003	Official detection	Aug 9, 2024	1010007756	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0050 µg/L MRL: 0.003	Official detection	Aug 9, 2024	1010007756	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0046 µg/L MRL: 0.004	Official detection	Aug 9, 2024	1010007739	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0043 µg/L MRL: 0.004	Official detection	Aug 9, 2024	1010007738	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0034 µg/L MRL: 0.003	Official detection	Aug 9, 2024	1010007670	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.013 µg/L MRL: 0.003	Official detection	Aug 9, 2024	1010007756	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0047 µg/L MRL: 0.003	Official detection	Aug 8, 2024	1010007661	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.0046 µg/L MRL: 0.003	Official detection	Aug 8, 2024	1010007661	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0085 µg/L MRL: 0.003	Official detection	Aug 8, 2024	1010007661	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.013 µg/L MRL: 0.004	Official detection	Aug 8, 2024	1010007661	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0079 µg/L MRL: 0.004	Official detection	Aug 8, 2024	1010007866	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0057 µg/L MRL: 0.003	Official detection	Aug 8, 2024	1010007661	EPA UCMR 5
PFBA Perfluorobutanoic acid	0.0078 µg/L MRL: 0.005	Official detection	Feb 28, 2024	1010007748	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0072 µg/L MRL: 0.003	Official detection	Feb 28, 2024	1010007748	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.0038 µg/L MRL: 0.003	Official detection	Feb 28, 2024	1010007773	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.0057 µg/L MRL: 0.003	Official detection	Feb 28, 2024	1010007748	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0076 µg/L MRL: 0.003	Official detection	Feb 28, 2024	1010007773	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.014 µg/L MRL: 0.003	Official detection	Feb 28, 2024	1010007748	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0072 µg/L MRL: 0.003	Official detection	Feb 28, 2024	1010007748	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0065 µg/L MRL: 0.004	Official detection	Feb 28, 2024	1010007748	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0047 µg/L MRL: 0.004	Official detection	Feb 28, 2024	1010007854	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0061 µg/L MRL: 0.004	Official detection	Feb 28, 2024	1010007773	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0048 µg/L MRL: 0.004	Official detection	Feb 28, 2024	1010007773	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0061 µg/L MRL: 0.004	Official detection	Feb 28, 2024	1010007854	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.015 µg/L MRL: 0.003	Official detection	Feb 28, 2024	1010007748	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.011 µg/L MRL: 0.003	Official detection	Feb 28, 2024	1010007773	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0047 µg/L MRL: 0.003	Official detection	Feb 28, 2024	1010007670	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.0032 µg/L MRL: 0.003	Official detection	Feb 23, 2024	1010007776	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0053 µg/L MRL: 0.003	Official detection	Feb 23, 2024	1010007776	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0070 µg/L MRL: 0.003	Official detection	Feb 23, 2024	1010007776	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0057 µg/L MRL: 0.004	Official detection	Feb 23, 2024	1010007776	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0049 µg/L MRL: 0.004	Official detection	Feb 23, 2024	1010007776	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0056 µg/L MRL: 0.003	Official detection	Feb 23, 2024	1010007776	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0048 µg/L MRL: 0.003	Official detection	Feb 22, 2024	1010007756	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0053 µg/L MRL: 0.003	Official detection	Feb 22, 2024	1010007756	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0041 µg/L MRL: 0.004	Official detection	Feb 22, 2024	1010007756	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.014 µg/L MRL: 0.003	Official detection	Feb 22, 2024	1010007756	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0054 µg/L MRL: 0.004	Official detection	Feb 15, 2024	1010007827	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0049 µg/L MRL: 0.004	Official detection	Feb 9, 2024	1010007850	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0079 µg/L MRL: 0.004	Official detection	Feb 9, 2024	1010007850	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0030 µg/L MRL: 0.003	Official detection	Feb 9, 2024	1010007861	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0080 µg/L MRL: 0.003	Official detection	Feb 8, 2024	1010007747	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.0065 µg/L MRL: 0.003	Official detection	Feb 8, 2024	1010007747	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0036 µg/L MRL: 0.003	Official detection	Feb 8, 2024	1010007743	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0091 µg/L MRL: 0.003	Official detection	Feb 8, 2024	1010007747	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0037 µg/L MRL: 0.003	Official detection	Feb 8, 2024	1010007949	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0045 µg/L MRL: 0.003	Official detection	Feb 8, 2024	1010007747	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.013 µg/L MRL: 0.004	Official detection	Feb 8, 2024	1010007747	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0047 µg/L MRL: 0.004	Official detection	Feb 8, 2024	1010007952	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0043 µg/L MRL: 0.004	Official detection	Feb 8, 2024	1010007949	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.030 µg/L MRL: 0.004	Official detection	Feb 8, 2024	1010007747	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0061 µg/L MRL: 0.004	Official detection	Feb 8, 2024	1010007952	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0031 µg/L MRL: 0.003	Official detection	Feb 8, 2024	1010007952	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.014 µg/L MRL: 0.003	Official detection	Feb 8, 2024	1010007747	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0048 µg/L MRL: 0.003	Official detection	Feb 8, 2024	1010007743	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0045 µg/L MRL: 0.003	Official detection	Feb 8, 2024	1010007949	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0055 µg/L MRL: 0.004	Official detection	Feb 7, 2024	1010007777	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0053 µg/L MRL: 0.004	Official detection	Feb 7, 2024	1010007777	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0036 µg/L MRL: 0.003	Official detection	Feb 1, 2024	1010007866	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0032 µg/L MRL: 0.003	Official detection	Feb 1, 2024	1010007844	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0058 µg/L MRL: 0.004	Official detection	Feb 1, 2024	1010007844	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0063 µg/L MRL: 0.004	Official detection	Feb 1, 2024	1010007757	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0048 µg/L MRL: 0.004	Official detection	Feb 1, 2024	1010007866	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.014 µg/L MRL: 0.004	Official detection	Feb 1, 2024	1010007866	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.011 µg/L MRL: 0.003	Official detection	Oct 27, 2023	1010007799	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0034 µg/L MRL: 0.003	Official detection	Sep 29, 2023	1010007823	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0053 µg/L MRL: 0.003	Official detection	Sep 29, 2023	1010007928	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0049 µg/L MRL: 0.003	Official detection	Sep 29, 2023	1010007823	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.025 µg/L MRL: 0.003	Official detection	Sep 29, 2023	1010007823	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.013 µg/L MRL: 0.003	Official detection	Sep 29, 2023	1010007799	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0050 µg/L MRL: 0.003	Official detection	Sep 29, 2023	1010007944	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0067 µg/L MRL: 0.003	Official detection	Sep 29, 2023	1010007781	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0055 µg/L MRL: 0.004	Official detection	Sep 29, 2023	1010007823	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0069 µg/L MRL: 0.004	Official detection	Sep 29, 2023	1010007781	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0070 µg/L MRL: 0.004	Official detection	Sep 29, 2023	1010007823	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0049 µg/L MRL: 0.003	Official detection	Sep 29, 2023	1010007928	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0034 µg/L MRL: 0.003	Official detection	Sep 29, 2023	1010007823	EPA UCMR 5
PFBA Perfluorobutanoic acid	0.025 µg/L MRL: 0.005	Official detection	Sep 28, 2023	1010007705	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.031 µg/L MRL: 0.003	Official detection	Sep 28, 2023	1010007705	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0041 µg/L MRL: 0.004	Official detection	Sep 27, 2023	1010007939	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0045 µg/L MRL: 0.004	Official detection	Sep 27, 2023	1010007904	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0038 µg/L MRL: 0.003	Official detection	Sep 26, 2023	1010007783	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0035 µg/L MRL: 0.003	Official detection	Sep 26, 2023	1010007783	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0072 µg/L MRL: 0.004	Official detection	Sep 26, 2023	1010007783	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0052 µg/L MRL: 0.004	Official detection	Sep 26, 2023	1010007783	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0037 µg/L MRL: 0.003	Official detection	Sep 26, 2023	1010007783	EPA UCMR 5
PFBA Perfluorobutanoic acid	0.0081 µg/L MRL: 0.005	Official detection	Sep 21, 2023	1010007768	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0039 µg/L MRL: 0.003	Official detection	Sep 21, 2023	1010007768	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.0047 µg/L MRL: 0.003	Official detection	Sep 21, 2023	1010007769	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.018 µg/L MRL: 0.003	Official detection	Sep 21, 2023	1010007768	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0052 µg/L MRL: 0.003	Official detection	Sep 21, 2023	1010007769	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0034 µg/L MRL: 0.003	Official detection	Sep 21, 2023	1010007907	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.014 µg/L MRL: 0.003	Official detection	Sep 21, 2023	1010007768	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0030 µg/L MRL: 0.003	Official detection	Sep 21, 2023	1010007768	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.011 µg/L MRL: 0.004	Official detection	Sep 21, 2023	1010007768	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0061 µg/L MRL: 0.004	Official detection	Sep 21, 2023	1010007769	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0067 µg/L MRL: 0.004	Official detection	Sep 21, 2023	1010007769	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.014 µg/L MRL: 0.004	Official detection	Sep 21, 2023	1010007768	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0037 µg/L MRL: 0.003	Official detection	Sep 21, 2023	1010007907	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0077 µg/L MRL: 0.003	Official detection	Sep 21, 2023	1010007769	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.024 µg/L MRL: 0.003	Official detection	Sep 21, 2023	1010007768	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0031 µg/L MRL: 0.003	Official detection	Sep 14, 2023	1010007921	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0093 µg/L MRL: 0.003	Official detection	Sep 14, 2023	1010007921	EPA UCMR 5
PFNA Perfluorononanoic acid	0.0047 µg/L MRL: 0.004	Official detection	Sep 14, 2023	1010007921	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0046 µg/L MRL: 0.004	Official detection	Sep 14, 2023	1010007921	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.010 µg/L MRL: 0.004	Official detection	Sep 14, 2023	1010007921	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0041 µg/L MRL: 0.003	Official detection	Sep 13, 2023	1010007912	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0069 µg/L MRL: 0.004	Official detection	Sep 13, 2023	1010007912	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.012 µg/L MRL: 0.004	Official detection	Sep 13, 2023	1010007912	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0040 µg/L MRL: 0.003	Official detection	Sep 13, 2023	1010007912	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0046 µg/L MRL: 0.003	Official detection	Sep 8, 2023	1010007654	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.0059 µg/L MRL: 0.003	Official detection	Sep 8, 2023	1010007654	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0069 µg/L MRL: 0.003	Official detection	Sep 8, 2023	1010007654	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.028 µg/L MRL: 0.003	Official detection	Sep 8, 2023	1010007654	EPA UCMR 5
PFNA Perfluorononanoic acid	0.0079 µg/L MRL: 0.004	Official detection	Sep 8, 2023	1010007924	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0088 µg/L MRL: 0.004	Official detection	Sep 8, 2023	1010007654	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0044 µg/L MRL: 0.004	Official detection	Sep 8, 2023	1010007924	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.014 µg/L MRL: 0.004	Official detection	Sep 8, 2023	1010007654	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0091 µg/L MRL: 0.003	Official detection	Sep 8, 2023	1010007654	EPA UCMR 5
PFPeS Perfluoropentane sulfonic acid	0.0047 µg/L MRL: 0.004	Official detection	Sep 8, 2023	1010007654	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0048 µg/L MRL: 0.004	Official detection	Sep 7, 2023	1010007659	EPA UCMR 5
PFBA Perfluorobutanoic acid	0.018 µg/L MRL: 0.005	Official detection	Mar 20, 2023	1010007768	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0086 µg/L MRL: 0.003	Official detection	Mar 20, 2023	1010007768	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.031 µg/L MRL: 0.003	Official detection	Mar 20, 2023	1010007768	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.034 µg/L MRL: 0.003	Official detection	Mar 20, 2023	1010007768	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0041 µg/L MRL: 0.003	Official detection	Mar 20, 2023	1010007908	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0055 µg/L MRL: 0.003	Official detection	Mar 20, 2023	1010007768	EPA UCMR 5
PFNA Perfluorononanoic acid	0.0052 µg/L MRL: 0.004	Official detection	Mar 20, 2023	1010007768	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.016 µg/L MRL: 0.004	Official detection	Mar 20, 2023	1010007768	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.029 µg/L MRL: 0.004	Official detection	Mar 20, 2023	1010007768	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.047 µg/L MRL: 0.003	Official detection	Mar 20, 2023	1010007768	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0050 µg/L MRL: 0.003	Official detection	Mar 20, 2023	1010007908	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0038 µg/L MRL: 0.003	Official detection	Mar 17, 2023	1010007769	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0030 µg/L MRL: 0.003	Official detection	Mar 17, 2023	1010007907	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0048 µg/L MRL: 0.004	Official detection	Mar 17, 2023	1010007904	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0031 µg/L MRL: 0.003	Official detection	Mar 17, 2023	1010007907	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0048 µg/L MRL: 0.003	Official detection	Mar 17, 2023	1010007769	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0032 µg/L MRL: 0.003	Official detection	Mar 16, 2023	1010007912	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0037 µg/L MRL: 0.003	Official detection	Mar 16, 2023	1010007912	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0062 µg/L MRL: 0.004	Official detection	Mar 16, 2023	1010007912	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.013 µg/L MRL: 0.004	Official detection	Mar 16, 2023	1010007912	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0041 µg/L MRL: 0.003	Official detection	Mar 16, 2023	1010007912	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0038 µg/L MRL: 0.003	Official detection	Mar 13, 2023	1010007823	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0047 µg/L MRL: 0.003	Official detection	Mar 13, 2023	1010007823	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0041 µg/L MRL: 0.003	Official detection	Mar 13, 2023	1010007928	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.027 µg/L MRL: 0.003	Official detection	Mar 13, 2023	1010007823	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0050 µg/L MRL: 0.004	Official detection	Mar 13, 2023	1010007823	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0077 µg/L MRL: 0.004	Official detection	Mar 13, 2023	1010007823	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0030 µg/L MRL: 0.003	Official detection	Mar 13, 2023	1010007823	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0049 µg/L MRL: 0.003	Official detection	Mar 13, 2023	1010007928	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0048 µg/L MRL: 0.003	Official detection	Mar 10, 2023	1010007654	EPA UCMR 5
PFHpA Perfluoroheptanoic acid	0.0068 µg/L MRL: 0.003	Official detection	Mar 10, 2023	1010007654	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0067 µg/L MRL: 0.003	Official detection	Mar 10, 2023	1010007654	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0073 µg/L MRL: 0.003	Official detection	Mar 10, 2023	1010007781	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.030 µg/L MRL: 0.003	Official detection	Mar 10, 2023	1010007654	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.0055 µg/L MRL: 0.003	Official detection	Mar 10, 2023	1010007944	EPA UCMR 5
PFHxS Perfluorohexane sulfonic acid	0.010 µg/L MRL: 0.003	Official detection	Mar 10, 2023	1010007921	EPA UCMR 5
PFNA Perfluorononanoic acid	0.0058 µg/L MRL: 0.004	Official detection	Mar 10, 2023	1010007921	EPA UCMR 5
PFNA Perfluorononanoic acid	0.0043 µg/L MRL: 0.004	Official detection	Mar 10, 2023	1010007654	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0043 µg/L MRL: 0.004	Official detection	Mar 10, 2023	1010007921	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0089 µg/L MRL: 0.004	Official detection	Mar 10, 2023	1010007654	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0063 µg/L MRL: 0.004	Official detection	Mar 10, 2023	1010007781	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0096 µg/L MRL: 0.004	Official detection	Mar 10, 2023	1010007921	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.015 µg/L MRL: 0.004	Official detection	Mar 10, 2023	1010007654	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0090 µg/L MRL: 0.003	Official detection	Mar 10, 2023	1010007654	EPA UCMR 5
PFPeS Perfluoropentane sulfonic acid	0.0053 µg/L MRL: 0.004	Official detection	Mar 10, 2023	1010007654	EPA UCMR 5
PFHxA Perfluorohexanoic acid	0.0035 µg/L MRL: 0.003	Official detection	Mar 8, 2023	1010007939	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0065 µg/L MRL: 0.004	Official detection	Mar 8, 2023	1010007939	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0047 µg/L MRL: 0.004	Official detection	Mar 8, 2023	1010007939	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0035 µg/L MRL: 0.003	Official detection	Mar 8, 2023	1010007939	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0041 µg/L MRL: 0.004	Official detection	Mar 7, 2023	1010007922	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0076 µg/L MRL: 0.004	Official detection	Mar 7, 2023	1010007880	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0058 µg/L MRL: 0.003	Official detection	Mar 6, 2023	1010007898	EPA UCMR 5
PFNA Perfluorononanoic acid	0.0080 µg/L MRL: 0.004	Official detection	Mar 6, 2023	1010007924	EPA UCMR 5
PFOA Perfluorooctanoic acid	0.0058 µg/L MRL: 0.004	Official detection	Mar 6, 2023	1010007898	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0057 µg/L MRL: 0.004	Official detection	Mar 6, 2023	1010007924	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.018 µg/L MRL: 0.004	Official detection	Mar 6, 2023	1010007898	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.0034 µg/L MRL: 0.003	Official detection	Mar 6, 2023	1010007898	EPA UCMR 5
PFBS Perfluorobutane sulfonic acid	0.0030 µg/L MRL: 0.003	Official detection	Mar 3, 2023	1010007877	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0052 µg/L MRL: 0.004	Official detection	Mar 3, 2023	1010007881	EPA UCMR 5
PFBA Perfluorobutanoic acid	0.026 µg/L MRL: 0.005	Official detection	Mar 2, 2023	1010007705	EPA UCMR 5
PFPeA Perfluoropentanoic acid	0.013 µg/L MRL: 0.003	Official detection	Mar 2, 2023	1010007705	EPA UCMR 5
PFOS Perfluorooctane sulfonic acid	0.0057 µg/L MRL: 0.004	Official detection	Mar 1, 2023	1010007659	EPA UCMR 5

Source: EPA UCMR 5 Occurrence Data · Retrieved April 20, 2026

Public drinking water datasets may not include every recent test, private well result, household plumbing issue, or local advisory. Use this page as a starting point, not as a substitute for official guidance, your utility's Consumer Confidence Report, or professional testing.

Water Utility Report summarizes public records from official federal, state, utility, or testing datasets where available. For urgent health or compliance questions, contact your utility, local health department, or the EPA directly. How Water Utility Report uses public drinking water data

Water System

PWSID

CA1010007

State

California

Population served

545,716

System type

Surface water

Full utility profile

PFAS Record Summary

Total records213

Official detections213

Official non-detects0

Monitoring results from EPA UCMR 5 are not compliance determinations.

California drinking water overview Fresno city water report California PFAS records — all utilities Best filters for PFAS removal PFAS contaminant overview

Official Sources

EPA ECHO Facility Report UCMR 5 Data Finder EPA PFAS Rule

Key Terms

UCMR 5▾

The 5th Unregulated Contaminant Monitoring Rule — an EPA program requiring large water systems to test for emerging contaminants, including PFAS, from 2023–2025.

PFAS▾

Per- and polyfluoroalkyl substances. A family of synthetic chemicals used in industry and consumer products, some of which have been detected in drinking water.

MRL (Minimum Reporting Limit)▾

The lowest concentration at which a lab can reliably detect and report a substance. Results below MRL are reported as non-detects.

Detection above MRL▾

The analyte was measured at a concentration at or above the minimum reporting limit. This is a monitoring result, not a compliance determination.

Non-detect▾

The analyte was tested but not found above the minimum reporting limit. Absence of detection does not guarantee absence of the substance.

This page shows only official government PFAS records. No risk scores, safety judgments, or inferred compliance determinations are generated by this system. Read methodology

California PFAS records Methodology