MW&L’s water source has been tested for PFAS in 2014 (UCMR3), 2021, and 2023. To date, PFAS have not been detected in our drinking water system. MW&L is currently waiting for results from our 2023 PFAS samples. Below is a brief summary of MW&L’s PFAS testing:
- 2014 - MW&L performed quarterly testing for six PFAS under the EPA’s UCMR3. PFAS were not detected in MW&L’s water system from the Haskins/Nestucca watershed during this monitoring period.
- 2021 - MW&L tested all its sources for PFAS to the lowest detection limits available. No PFAS were detected in water from the Haskins/Nestucca watershed in the Oregon Coast Range, which serves all MW&L customers. Additional testing was performed on MW&L’s potential future Willamette River water source with the same results.
- 2023 - MW&L performed UCMR5 investigative sampling (not required), which includes 29 PFAS chemicals. No PFAS were detected in water from the Water Treatment Plant raw water or the future Willamette River water site.
- 2025 - Quarterly UCMR5 sampling for PFAS and lithium will begin in February 2025.