Walnut Creek, AZ
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 Walnut Creek'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 Walnut Creek, AZ
We'll email you when a new violation, lawsuit, or health report appears for Walnut Creek's water. Free, unsubscribe anytime.

Public water systems
Walnut Creek Water Company
- PWSID:
- AZ0408078
- Source:
- Ground water
- Serves:
- 728 people
EPA & DEP violations
Walnut Creek Water Company
PWSID AZ040807818 violationsMonitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3567 (code 52) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Oct 1, 2022 · 3 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3570 (code 66) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Sep 25, 2022 · 3 years ago · Source ↗
Reporting violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3563 (code 4B) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Reporting violation · Began Feb 1, 2022 · 4 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3568 (code 27) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3569 (code 27) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Jan 1, 2022 · 4 years ago · Source ↗
Reporting violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3561 (code 4B) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Reporting violation · Began Jun 1, 2021 · 5 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3559 (code 66) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Jan 1, 2020 · 6 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3558 (code 52) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Oct 1, 2019 · 6 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3556 (code 3A) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Nov 1, 2016 · 9 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3557 (code 52) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Oct 1, 2016 · 9 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3555 (code 23) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Mar 1, 2016 · 10 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3554 (code 23) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Nov 1, 2015 · 10 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3552 (code 23) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Oct 1, 2015 · 10 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3551 (code 23) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Sep 1, 2015 · 10 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3550 (code 23) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Aug 1, 2015 · 11 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3549 (code 23) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Jul 1, 2015 · 11 years ago · Source ↗
Monitoring violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 104 (code 52) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Monitoring violation · Began Oct 1, 2004 · 21 years ago · Source ↗
Other violation — WALNUT CREEK WATER COMPANY
low severityResolvedEPA SDWIS violation 3545 (code 71) at WALNUT CREEK WATER COMPANY (PWSID AZ0408078).
EPA SDWIS · Other violation · Began Jul 1, 2002 · 24 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.