DEARBORN HEIGHTS — Water Quality Report 2026
Serving 57,774 people · Michigan
Contaminant Test Results
EPA Violation History
13
Violations (last 5yr)
3
Unresolved
1
Health-Related
Disinfection byproduct treatment technique failure
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
Treatment technique violation
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
Surface water treatment technique failure
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
Surface water treatment technique failure
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
Surface water treatment technique failure
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
Understanding violation severity
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly