Lake Oswego, OR · PFAS · forever chemicals
PFAS in Lake Oswego tap water
PFAS was not detected in Lake Oswego’s latest sampling. See the measured values, the EPA source, and what removes PFAS.
Supplier: LAKE OSWEGO MUNICIPAL WATERNot detectedScore 100/100
PFAS in Lake Oswego tap water
PFAS was not detected in Lake Oswego’s latest sampling.
Not detectedNot detected in the 2024 UCMR5 round.
Not detected in the 2024 UCMR5 round.
Not detected in the 2024 UCMR5 round.
Not detected in the 2024 UCMR5 round.
This page focuses on PFAS in Lake Oswego; the full city report covers every measured contaminant.
Treatment capabilities that apply
- Reverse osmosis
- Activated carbon (GAC)
- Anion exchange
No product is recommended for this Lake Oswego finding: the published findings do not document a concern that a certified filter claim addresses.
Frequently asked questions
Sources
UCMR5 Analytical Results
UCMR5 Analytical Results: LAKE OSWEGO MUNICIPAL WATER (OR4100457)
US EPA · 2026-01-15
View sourceState SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: LAKE OSWEGO MUNICIPAL WATER (OR4100457)
US EPA SDWIS · 2026-07-09
View source