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Water system · PWSID 105300048

UPPER SKAGIT

SEDRO WOOLLEY, WA · ~365 people served

Check your exact address → SEDRO WOOLLEY overview
100
Excellent
PurityRadar safety score

PWSID

105300048

State

Washington

City

SEDRO WOOLLEY

Population served

365

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

36

Violations on record

3

Unaddressed

0

Health-based

25

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2024. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jul 2025 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jan 2025 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jul 2024 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2018 Resolved
Monitoring · Lead & Copper Rule began May 2018 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2018 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2017 Resolved
Monitoring · Lead & Copper Rule began Dec 2016 Resolved
Reporting · Lead & Copper Rule began Nov 2016 Resolved
Monitoring · Lead & Copper Rule began Oct 2016 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2016 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Feb 2024
  • EPA/federal action · EOX Mar 2019
  • EPA/federal action · EOX Sep 2018
  • EPA/federal action · EOX Jan 2017
  • EPA/federal action · EOX Nov 2016
  • EPA/federal action · EOX Apr 2016
  • EPA/federal action · EOX Dec 2015
  • EPA/federal action · EOX Sep 2015

This profile is built from EPA public records for system 105300048 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.