Washington, CA
Contamination score
Higher = more contaminated vs. other cities.
Share this with friends & family you care about ❤️
Help someone you love know what's in their water — we'll email them Washington's report. No sign-ups, no list.
Reported illness & cancer claims
No claims reported yet. Be the first to add one.
Claims are aggregated from public records and community reports and may be unverified. If you believe your illness is linked to local water, request a consultation.
Self-reported issues
No issues reported yet. Be the first to report one.
Pollution sources & reported claims near your water
Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.
Get water alerts for Washington, CA
We'll email you when a new violation, lawsuit, or health report appears for Washington's water. Free, unsubscribe anytime.

Public water systems
WASHINGTON WATER DISTRICT
- PWSID:
- CA2900523
- Source:
- Surface water
- Serves:
- 330 people
EPA & DEP violations
WASHINGTON WATER DISTRICT
PWSID CA290052310 violationsMonitoring violation — WASHINGTON WATER DISTRICT
low severityOpenEPA SDWIS violation 9700010 (code 03) at WASHINGTON WATER DISTRICT (PWSID CA2900523).
EPA SDWIS · Monitoring violation · Began Oct 1, 2025 · 11 months ago · Source ↗
Monitoring violation — WASHINGTON WATER DISTRICT
low severityOpenEPA SDWIS violation 9700008 (code 27) at WASHINGTON WATER DISTRICT (PWSID CA2900523).
EPA SDWIS · Monitoring violation · Began Jan 1, 2025 · 1 year ago · Source ↗
Monitoring violation — WASHINGTON WATER DISTRICT
low severityOpenEPA SDWIS violation 9700009 (code 27) at WASHINGTON WATER DISTRICT (PWSID CA2900523).
EPA SDWIS · Monitoring violation · Began Jan 1, 2025 · 1 year ago · Source ↗
Treatment technique violation — WASHINGTON WATER DISTRICT
high severityHealth-basedOpenEPA SDWIS violation 9700006 (code 2E) at WASHINGTON WATER DISTRICT (PWSID CA2900523).
EPA SDWIS · Treatment technique violation · Began Oct 17, 2024 · 1 year ago · Source ↗
Reporting violation — WASHINGTON WATER DISTRICT
low severityOpenEPA SDWIS violation 9700007 (code 4G) at WASHINGTON WATER DISTRICT (PWSID CA2900523).
EPA SDWIS · Reporting violation · Began Oct 17, 2024 · 1 year ago · Source ↗
Monitoring violation — WASHINGTON WATER DISTRICT
low severityResolvedEPA SDWIS violation 9700003 (code 03) at WASHINGTON WATER DISTRICT (PWSID CA2900523).
EPA SDWIS · Monitoring violation · Began Jul 1, 2020 · 6 years ago · Source ↗
Monitoring violation — WASHINGTON WATER DISTRICT
low severityResolvedEPA SDWIS violation 9700004 (code 27) at WASHINGTON WATER DISTRICT (PWSID CA2900523).
EPA SDWIS · Monitoring violation · Began Jan 1, 2020 · 6 years ago · Source ↗
Monitoring violation — WASHINGTON WATER DISTRICT
low severityResolvedEPA SDWIS violation 9700005 (code 27) at WASHINGTON WATER DISTRICT (PWSID CA2900523).
EPA SDWIS · Monitoring violation · Began Jan 1, 2020 · 6 years ago · Source ↗
Treatment technique violation — WASHINGTON WATER DISTRICT
high severityHealth-basedResolvedEPA SDWIS violation 9700002 (code 42) at WASHINGTON WATER DISTRICT (PWSID CA2900523).
EPA SDWIS · Treatment technique violation · Began Oct 1, 2007 · 18 years ago · Source ↗
Monitoring violation — WASHINGTON WATER DISTRICT
low severityResolvedEPA SDWIS violation 95V0001 (code 51) at WASHINGTON WATER DISTRICT (PWSID CA2900523).
EPA SDWIS · Monitoring violation · Began Jul 1, 1993 · 33 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.