PWSID
IA3126052
State
Iowa
City
DUBUQUE
Population served
59,667
Primary source
Groundwater
Score history
▼ 15 points — the score moved from 100 to 85 on Jun 18, 2026, as newly published EPA data was incorporated.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Feb 2024). Levels in parts per trillion (ppt).
PFOA
Perfluorooctanoic acid
5.1 ppt
limit 4 ppt
PFBA
8 ppt
limit —
Violations & enforcement
2
Violations on record
0
Unaddressed
0
Health-based
24
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Feb 2008. Official EPA record →
Recent enforcement actions
- State action · SOX Feb 2008
- State action · SIF Nov 2006
- State action · SFJ Sep 2006
- State action · SFJ Aug 2005
- State action · SOX Aug 2005
- State action · SFJ Nov 2004
- State action · SFJ Nov 2004
- State action · SIE Nov 2004
Area water-quality monitoring
Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.
Manganese
1 station · latest Dec 2022
Arsenic
1 station · latest Dec 2022
Fluoride
1 station · latest Dec 2022
Lead
1 station · latest Jun 2022
Copper
1 station · latest Sep 2020
Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.
This profile is built from EPA public records for system IA3126052 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.