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PublicWater Watch

City of Wilsonville

Published drinking-water records and contacts for City of Wilsonville. System OR4100954. Review sources and dates; not a real-time water assessment.

System ID
OR4100954
State or territory
OR
Published population served
25915
System type (source code)
CWS

Published records and dates

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

EPA UCMR 5 — most recent imported sample per substance
SubstancePublished resultReporting limitSample dateSampling location
11Cl-PF3OUdS< 0.005 µg/L0.005 µg/L2025-09-03Water TP / 008
4:2 FTS< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
6:2 FTS< 0.005 µg/L0.005 µg/L2025-09-03Water TP / 008
8:2 FTS< 0.005 µg/L0.005 µg/L2025-09-03Water TP / 008
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2025-09-03Water TP / 008
ADONA< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
HFPO-DA< 0.005 µg/L0.005 µg/L2025-09-03Water TP / 008
NEtFOSAA< 0.005 µg/L0.005 µg/L2025-09-03Water TP / 008
NFDHA< 0.02 µg/L0.02 µg/L2025-09-03Water TP / 008
NMeFOSAA< 0.006 µg/L0.006 µg/L2025-09-03Water TP / 008
PFBA< 0.005 µg/L0.005 µg/L2025-09-03Water TP / 008
PFBS< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
PFDA< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
PFDoA< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
PFEESA< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
PFHpA< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
PFHpS< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
PFHxA< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
PFHxS< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
PFMBA< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
PFMPA< 0.004 µg/L0.004 µg/L2025-09-03Water TP / 008
PFNA< 0.004 µg/L0.004 µg/L2025-09-03Water TP / 008
PFOA< 0.004 µg/L0.004 µg/L2025-09-03Water TP / 008
PFOS< 0.004 µg/L0.004 µg/L2025-09-03Water TP / 008
PFPeA< 0.003 µg/L0.003 µg/L2025-09-03Water TP / 008
PFPeS< 0.004 µg/L0.004 µg/L2025-09-03Water TP / 008
PFTA< 0.008 µg/L0.008 µg/L2025-09-03Water TP / 008
PFTrDA< 0.007 µg/L0.007 µg/L2025-09-03Water TP / 008
PFUnA< 0.002 µg/L0.002 µg/L2025-09-03Water TP / 008
lithium< 9 µg/L9 µg/L2025-09-03Water TP / 008

Download all EPA UCMR 5 records (CSV)

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
SubstancePublished 90th percentileMonitoring periodSource quarter
Lead (PB90) 0.0076 mg/L2022-01-01 – 2024-12-312026Q3
Lead (PB90) 0 mg/L2019-01-01 – 2021-12-312026Q3
Lead (PB90) 0 mg/L2016-01-01 – 2018-12-312026Q3
Lead (PB90) 0.001 mg/L2013-01-01 – 2015-12-312026Q3
Lead (PB90) 0 mg/L2010-01-01 – 2012-12-312026Q3
Lead (PB90) 0.007 mg/L2008-01-01 – 2010-12-312026Q3
Lead (PB90) 0.003 mg/L2005-01-01 – 2007-12-312026Q3
Lead (PB90) 0.002 mg/L2003-01-01 – 2003-12-312026Q3

Published compliance history

10 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / recordPeriodRecorded statusHealth-based (EPA classification)Source quarter
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2026-04-01 – 2026-06-30ArchivedNo2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2026-04-01 – 2026-06-30ArchivedNo2026Q3
Consumer Confidence Rule / Consumer Confidence Report Complete Failure to Report2025-07-01 – —ResolvedNo2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)2018-05-01 – 2018-05-31ResolvedNo2026Q3
Surface Water Treatment Rule / Monitoring of Treatment (SWTR-Filter)2018-05-01 – 2018-05-31ResolvedNo2026Q3
Surface Water Treatment Rule / Monitoring of Treatment (SWTR-Filter)2018-05-01 – 2018-05-31ResolvedNo2026Q3
Interim and Long Term 1 Enhanced Surface Water Treatment Rule / Monitoring, Turbidity (Enhanced SWTR)2018-05-01 – 2018-05-31ResolvedNo2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)2017-03-01 – 2017-03-31ResolvedNo2026Q3
Radionuclides and Revised Rad Rule / Monitoring, Regular1976-06-01 – 1980-05-31ArchivedNo2026Q3
Radionuclides and Revised Rad Rule / Monitoring, Regular1976-06-01 – 1980-05-31ArchivedNo2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

Administrative contact (EPA filing)

City of Wilsonville: 503-570-1542

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records