CLIO, IA · Decatur County
DAVIS CITY WATER SUPPLY Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of January 22, 2020. 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 Decatur 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)
- IA2715009
- System type
- Community Water System
- Population served
- 204
- Service connections
- 135
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
DAVIS CITY WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, formerly serving 204 people from surface water.
EPA's federal records list this system as inactive in 2020; the record below is historical.
As of August 1, 2026, its federal record holds 4 entries between 2003 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.
Of the 4, 3 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 Stage 2 Disinfectants and Disinfection Byproducts Rule, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Total Coliform Rules.
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
April 1, 2019 – April 30, 2019
ResolvedMonitoring and Reporting (DBP)
—TTHM
October 1, 2018 – October 31, 2018
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
April 1, 2009 – June 30, 2009
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
May 1, 2003 – May 31, 2003
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2019 – April 30, 2019 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2018 – October 31, 2018 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| April 1, 2009 – June 30, 2009 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| May 1, 2003 – May 31, 2003 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- April 11, 2010State Compliance achieved766 linked violations
Last known contact on file (system is inactive)
DAVIS CITY WATER SUPPLY
515-689-1987
CLIO, IA 50052