COUNTY WATER-SYSTEM LEDGER
Dubuque, Iowa
EPA’s September 2026 export lists 3 active community water systems serving Dubuque, Iowa, with 0 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Dubuque, Iowa
EPA associates 3 covered systems with Dubuque, Iowa; their reported population-served values total 70,087 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Dubuque Water WorksIA3126052 | 59,667 | Ground water | No current violation flagged |
| Asbury Municipal Water SystemIA3102001 | 5,943 | Ground water | No current violation flagged |
| Dyersville Municipal Water CoIA3130091 | 4,477 | Ground water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Dubuque, Iowa
EPA classifies 3 systems serving Dubuque, Iowa across 1 primary-source categories; Ground water is the largest category with 3 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.