00939 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-A	EP FOR NORTH FORK OF WILLAMETTE	SW	Permanent	4 quarters	1/1/2023			4/6/2026
For each active entry point served by surface water, collect 4 consecutive quarters of samples within a 12-month period with samples collected 2 to 4 months apart.

Sample Summaries

For compliance?	EP ID	Entry point name	Sample date	# Detections	# MCL exceedances	Sample ID
Yes	EP-A	EP FOR NORTH FORK OF WILLAMETTE	04/06/2026	0	0	M6D0707-01IN

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-A	EP FOR NORTH FORK OF WILLAMETTE	04/06/2026	04/17/2026	2816	HFPO-DA	Hexafluoropropylene oxide dimer acid	ND	10	1.87	M6D0707-01IN	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2	12309	3084299	4098735	Yes	2816M	N	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2
Yes	EP-A	EP FOR NORTH FORK OF WILLAMETTE	04/06/2026	04/17/2026	2801	PFBS	Perfluorobutanesulfonic acid	ND		1.87	M6D0707-01IN	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2	12309	3084299	4098740	Yes	2801M	N	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2
Yes	EP-A	EP FOR NORTH FORK OF WILLAMETTE	04/06/2026	04/17/2026	2803	PFHxS	Perfluorohexanesulfonic acid	ND	10	1.87	M6D0707-01IN	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2	12309	3084299	4098739	Yes	2803M	N	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2
Yes	EP-A	EP FOR NORTH FORK OF WILLAMETTE	04/06/2026	04/17/2026	2804	PFNA	Perfluorononanoic acid	ND	10	1.87	M6D0707-01IN	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2	12309	3084299	4098738	Yes	2804M	N	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2
Yes	EP-A	EP FOR NORTH FORK OF WILLAMETTE	04/06/2026	04/17/2026	2806	PFOA	Perfluorooctanoic acid	ND	4.0	1.87	M6D0707-01IN	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2	12309	3084299	4098736	Yes	2806M	N	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2
Yes	EP-A	EP FOR NORTH FORK OF WILLAMETTE	04/06/2026	04/17/2026	2805	PFOS	Perfluorooctanesulfonic acid	ND	4.0	1.87	M6D0707-01IN	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2	12309	3084299	4098737	Yes	2805M	N	4211	MICROBAC LABORATORIES - MARIETTA	EPA 537.1.V2	EPA 537.1.V2