DUBUQUE, IA · Dubuque County
VERNON WATER SYSTEM Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of January 4, 2018. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Dubuque County, IA.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.
System facts
- System ID (PWSID)
- IA3126315
- System type
- Community Water System
- Population served
- 300
- Service connections
- 156
- Ownership
- privately owned
- Water source
- groundwater (wells)
VERNON WATER SYSTEM is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, formerly serving 300 people from groundwater.
EPA's federal records list this system as inactive in 2018; the record below is historical.
As of August 1, 2026, its federal record holds 7 entries between 2009 and 2011, all of which EPA lists as closed. Nothing has been added since 2011.
Of the 7, 6 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules and the Stage 1 Disinfectants and Disinfection Byproducts Rule.
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
July 1, 2011 – July 31, 2011
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
April 1, 2010 – April 30, 2010
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
February 1, 2010 – February 28, 2010
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
December 1, 2009 – December 31, 2009
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
July 1, 2009 – August 31, 2011
ResolvedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
July 1, 2009 – August 31, 2009
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
May 1, 2009 – May 31, 2009
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2011 – July 31, 2011 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| April 1, 2010 – April 30, 2010 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| February 1, 2010 – February 28, 2010 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| December 1, 2009 – December 31, 2009 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 2009 – August 31, 2011 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 2009 – August 31, 2009 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Resolved |
| May 1, 2009 – May 31, 2009 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
DUBUQUE WATER WORKS - VERNON WATER
563-589-4291
DUBUQUE, IA 52001