DUBUQUE WATER WORKS
Dubuque, IA · 59,667 served
DUBUQUE WATER WORKS serves 59,667 people in Dubuque, IA. It has 0 health-based violations in the last 5 years. TapGraded gives this system a C.
Score breakdown
Health-based violations (5y)
0
Monitoring violations (5y)
0
Currently unaddressed
0
Overall score
72/100
Violation history (last 5 years)
No violations on record.
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Lead (Lead and Copper Rule)
EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).
PFAS (UCMR5 occurrence data)
System details
- System type
- Community water system
- Water source
- Ground water
- Ownership
- Local government
- Service connections
- 23,954
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Is Dubuque, IA tap water safe to drink?
DUBUQUE WATER WORKS has 0 health-based violations in the last 5 years. TapGraded gives this system a C.
Does DUBUQUE WATER WORKS have lead in its water?
The most recent 90th-percentile lead sample is 5 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in DUBUQUE WATER WORKS's water?
Yes — PFAS was detected at or above the EPA MCL for 1 of the tracked analytes.
Source: EPA SDWIS/ECHO · Data as of 2026Q2