Fresno, CA
Contamination score
#402 most contaminated of 30,542 cities — dirtier than 1% of the U.S.
Fresno has addressed DBCP and uranium in groundwater wells across the metro area.
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.

Public water systems
CITY OF FRESNO
- PWSID:
- CA1010007
- Source:
- Surface water
- Serves:
- 545,716 people
EPA & DEP violations
DBCP Groundwater Detection
medium severityHealth-basedResolvedWells closed after detection of dibromochloropropane.
CA SWRCB · Treatment technique · Began Mar 1, 2019 · 7 years ago
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2016 · 10 years ago · Source ↗
TTHM — MR violation
medium severityResolvedTTHM MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2010 · 15 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MR violation
medium severityResolvedTotal Haloacetic Acids (HAA5) MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2010 · 15 years ago · Source ↗
CARBON, TOTAL — MR violation
medium severityResolvedCARBON, TOTAL MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2010 · 15 years ago · Source ↗
Violation — Violation violation
medium severityContaminant Violation violation.
EPA SDWIS · Violation · Began — · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.