00051 PFAS Sample Results | Data Online | Oregon Drinking Water Services

More Information: PFAS Rule Information & Sampling Project
Abbreviations: MCL = Maximum contaminant level, MRL = Minimum reporting level, ND = Not detected at the minimum reporting level, PFAS = Per- and polyfluoroalkyl substances. Analytes with an MCL are in bold. Sample results detected above the MCL are in bold red.
Water systems must be in compliance with the MCL by 2029. Sample results can be used for compliance when their MRL meets the requirements of the PFAS rule. Results that cannot be used for compliance are shaded gray and italicized.

Initial Monitoring

This water system is part of the OHA PFAS Sampling Project. DEQ will collect the first sample from each active entry point by the end of July 2026. The water system is responsible for collecting additional samples needed to meet the initial monitoring requirements.
EP ID	Entry point name	Water type	Availability	Frequency	Schedule begin	Schedule end	First quarter or First sample	Second quarter or Second sample	Third quarter	Fourth quarter
EP-B	EP FOR WELL #2	GW	Permanent	2 samples	1/1/2023		9/30/2025		N/A	N/A
For each active entry point served by groundwater, collect 2 consecutive samples within a 12-month period with samples collected 5 to 7 months apart.

Sample Summaries

For compliance?	EP ID	Entry point name	Sample date	# Detections	# MCL exceedances	Sample ID
Yes	EP-B	EP FOR WELL #2	09/30/2025	1	0	2510042-01, 2510042-01RE2

Sample Results

For compliance?	EP ID	Entry point name	Sample date	Received date	Analyte code	Analyte abbreviation	Analyte name	Result (ng/L)	MCL (ng/L)	MRL (ng/L)	Sample ID	Lab ID	Lab name	Analysis method	Method name	TINWSF ISN	TSASAMPL ISN	TSASAR ISN	SelectDataSet	SelectAnalyte	SelectDetects	SelectLabID	SelectLabName	SelectMethod	SelectMethodName
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2813	11Cl-PF3OUdS	11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017744	Yes	2813	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2820	6:2FTS	1H,1H, 2H, 2H-Perfluorooctane sulfonic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017694	Yes	2820	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2822	8:2FTS	1H,1H, 2H, 2H-Perfluorodecane sulfonic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017674	Yes	2822	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2814	9Cl-PF3ONS	9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acd	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017734	Yes	2814	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2815	ADONA	4,8-Dioxa-3H-perfluorononanoic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017724	Yes	2815	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2819	PFBA	Perfluorobutanoic acid	ND		5.06	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017704	Yes	2819	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2801	PFBS	Perfluorobutanesulfonic acid	2.53		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017839	Yes	2801M	D	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2826	PFEESA	Perfluoro(2-ethoxyethane)sulfonic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017634	Yes	2826	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2802	PFHpA	Perfluoroheptanoic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017829	Yes	2802	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2829	PFHpS	Perfluoroheptanesulfonic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017604	Yes	2829	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2809	PFHxA	Perfluorohexanoic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017762	Yes	2809	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2803	PFHxS	Perfluorohexanesulfonic acid	ND	10	2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017819	Yes	2803M	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2825	PFMBA	Perfluoro-4-methoxybutanoic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017644	Yes	2825	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2823	PFMPA	Perfluoro-3-methoxypropanoic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017664	Yes	2823	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2804	PFNA	Perfluorononanoic acid	ND	10	2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017809	Yes	2804M	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2806	PFOA	Perfluorooctanoic acid	ND	4.0	2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017789	Yes	2806M	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2805	PFOS	Perfluorooctanesulfonic acid	ND	4.0	2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017799	Yes	2805M	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2824	PFPeA	Perfluoropentanoic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017654	Yes	2824	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2828	PFPeS	Perfluoropentanesulfonic acid	ND		2.02	2510042-01	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032821	4017614	Yes	2828	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2821	4:2FTS	1H,1H, 2H, 2H-Perfluorohexane sulfonic acid	ND		2.02	2510042-01RE2	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032822	4017684	Yes	2821	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2816	HFPO-DA	Hexafluoropropylene oxide dimer acid	ND	10	2.02	2510042-01RE2	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032822	4017714	Yes	2816M	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2827	NFDHA	Nonafluoro-3,6-dioxaheptanoic acid	ND		2.02	2510042-01RE2	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032822	4017624	Yes	2827	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes	EP-B	EP FOR WELL #2	09/30/2025	12/30/2025	2809	PFHxA	Perfluorohexanoic acid	ND		2.02	2510042-01RE2	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS	12103	3032822	4017763	Yes	2809	N	18	DEQ LABORATORY DIVISION	533	PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS