Verification stays attached to the route.
Last verified 2026-03-22 / Public-water utility context
WA public water
Seattle Public Utilities as the source context before the sales layer.
Pull direct utility material before making a product decision. This page collects the seeded utility links and context needed before interpretation.
Editorial owner
gabi Editorial Team
No external reviewer claim is made on this build.
Last verified
2026-03-22
Page-level review timestamp.
Scope
Public-water utility context
Action-first, not safe or unsafe and not a health diagnosis.
Verification details
Editorial owner
gabi Editorial Team
No external reviewer claim is made on this build.
Scope
Public-water utility context
Action-first, not safe or unsafe and not a health diagnosis.
PWSID
WA5377050
Seeded system identifier used by the route.
System type
Community system
Operational context before any filter comparison.
Population served
1400000
Utility scale can affect response timing and context.
Last verified
2026-03-22
Page-level review timestamp.
Public-water next action
Use direct utility data before comparing filters.
Utility documents, official notices, and normalized system observations should drive the next step.
Guide-first route
Use a guide to define the next step before treating this utility page like a verdict.
Support pages can surface in search, but they should still hand the user back into the guide layer that explains evidence order, notice reading, and product scope.
High-intent guide
How to read a CCR for PFAS: what to check first
Read PWSID, report year, system source, and any PFAS or treatment notes before opening product comparison.
Decision-intent guide
A PFAS utility notice is an action document, not a generic scare document
A mailed notice can be above-reference, below-reference, or unregulated monitoring context. The first job is to classify the document, not to guess the fix.
High-intent guide
Should you test for PFAS before buying a water filter?
Shopping intent should not outrank missing direct data. Public water means utility first. Private well means test first.
High-intent guide
NSF 53 vs 58 is not enough by itself for PFAS decisions
Do not let certification shorthand outrank the exact PFAS claim, model record, and maintenance burden when deciding whether a product belongs.
Service area notes
Why this utility page exists
Seattle Public Utilities regional surface-water system with official PFAS reporting showing no 2023 Cedar or Tolt finished-water detections across the mapped analytes on the utility PFAS page.
Primary source ledger
Direct links captured for this utility route
Seattle Public Utilities
Seattle Public Utilities
https://www.seattle.gov/utilities
Seattle Public Utilities
Water Quality Annual Reports
https://www.seattle.gov/utilities/about/reports/water-quality
Seattle Public Utilities
PFAS
https://www.seattle.gov/utilities/your-services/water/water-quality/quality-concerns/pfas
Seattle Public Utilities
SPU Final 2019 Water System Plan Volume 1
https://www.seattle.gov/documents/Departments/SPU/Documents/SPUFinal2019_WSP_Volume1.pdf