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OR41
PWS ID: 00379 ---- JOINT WATER COMMISSION
PFAS Sample Results

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More Information: PFAS Information & Sampling Project
*MCL = Maximum Contaminant Level. Analytes with an MCL are in bold; if it is detected and the MCL is exceeded for that sample, the result is in bold red. MRL = Minimum reporting level. ND = Not detected at the minimum reporting level. Systems must be in compliance with the MCL by 2029. PFAS = Per- and polyfluoroalkyl substances.

Sample Summaries
Facility ID Facility Name Sample Date # Detections # MCL
Exceedances		 Sample ID
EP-A EP FOR TUALATIN RIVER 04/02/2025 0 0 380-143925-1-P


Sample Results
Facility ID
Facility Name Sample Date Received Date Analyte Abbreviation
 Analyte Name
Result (ng/L)
MRL (ng/L) Sample ID SelectAnalyte SelectDetects
EP-A EP FOR TUALATIN RIVER 04/02/2025 04/10/2025 HFPO-DA Hexafluoropropylene oxide dimer acid ND 2.00 380-143925-1-P 2816M N
EP-A EP FOR TUALATIN RIVER 04/02/2025 04/10/2025 PFBS Perfluorobutanesulfonic acid ND 2.00 380-143925-1-P 2801 N
EP-A EP FOR TUALATIN RIVER 04/02/2025 04/10/2025 PFHxS Perfluorohexanesulfonic acid ND 2.00 380-143925-1-P 2803M N
EP-A EP FOR TUALATIN RIVER 04/02/2025 04/10/2025 PFNA Perfluorononanoic acid ND 2.00 380-143925-1-P 2804M N
EP-A EP FOR TUALATIN RIVER 04/02/2025 04/10/2025 PFOA Perfluorooctanoic acid ND 2.00 380-143925-1-P 2806M N
EP-A EP FOR TUALATIN RIVER 04/02/2025 04/10/2025 PFOS Perfluorooctanesulfonic acid ND 2.00 380-143925-1-P 2805M N


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