SILVER LAKE WATER & SEWER DISTRICT

Bothell, WA · ~65,033 people served

Check your exact address → Bothell overview

100

Excellent

PurityRadar safety score

PWSID

WA5379250

State

Washington

City

Bothell

Population served

65,033

Primary source

SWP

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2019. Official EPA record →

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2019 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2019 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2019 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2019 Resolved

Other · EPA contaminant 7000 began Jul 2014 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Other · EPA contaminant 7000 began Jul 2012 Resolved

Other · EPA contaminant 7000 began Jul 2011 Resolved

Other · EPA contaminant 7000 began Oct 1999 Resolved

Recent enforcement actions

State action · SOX Aug 2019
State action · SOX Aug 2019
State action · SOX Oct 2014
State action · SOX Sep 2013
State action · SOX Sep 2012
State action · SOX Aug 2011
EPA/federal action · EOX Dec 1999

This profile is built from EPA public records for system WA5379250 — 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.