OSAGE, IA · Mitchell County
OSAGE MUNICIPAL WATER SUPPLY Water System
Consumer Confidence Report status
OSAGE MUNICIPAL WATER SUPPLY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for OSAGE MUNICIPAL WATER SUPPLY.
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)
- IA6663001
- System type
- Community Water System
- Population served
- 3,637
- Service connections
- 1,952
- Ownership
- local government
- Water source
- groundwater (wells)
OSAGE MUNICIPAL WATER SUPPLY is one of 91 community water systems in Iowa in the 3,301 to 10,000 people size category, serving 3,637 people from groundwater.
As of August 1, 2026, its federal record holds 7 entries between 1997 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.
None of the 7 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Total Coliform Rules, the Groundwater Rule, and inorganic chemicals.
Violation history
Failure to Consult with State
—Groundwater Rule
June 12, 2016 – June 16, 2016
ResolvedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate
August 1, 2009 – August 31, 2009
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 2002 – August 31, 2002
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 2002 – June 30, 2002
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
November 1, 2001 – November 30, 2001
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 1999 – August 31, 1999
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
July 1, 1997 – July 31, 1997
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| June 12, 2016 – June 16, 2016 | Failure to Consult with State | Groundwater Rule | — | Resolved |
| August 1, 2009 – August 31, 2009 | Maximum Contaminant Level Violation, Single Sample | Nitrate | Health-based | Resolved |
| August 1, 2002 – August 31, 2002 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| June 1, 2002 – June 30, 2002 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| November 1, 2001 – November 30, 2001 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| August 1, 1999 – August 31, 1999 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| July 1, 1997 – July 31, 1997 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- July 6, 2016State Public Notification requested5 linked violations
- June 15, 2005State Public Notification received4 linked violations
- June 24, 2003State Compliance achieved3 linked violations
- October 28, 2002State Public Notification received4 linked violations
- October 3, 2002State Formal Notice of Violation issued3 linked violations
- September 27, 2002State Violation/Reminder Notice3 linked violations
- August 26, 2002State Public Notification requested3 linked violations
- July 26, 2002State Public Notification received2 linked violations
- July 3, 2002State Public Notification requested2 linked violations
- June 26, 2002State Violation/Reminder Notice3 linked violations
- November 21, 2001State Violation/Reminder Notice4 linked violations
- July 11, 2000State Compliance achieved2 linked violations
- August 23, 1999State Public Notification requested2 linked violations
- August 19, 1999State Violation/Reminder Notice3 linked violations
- April 23, 1997State Compliance achieved3 linked violations
- January 14, 1997State Public Notification requested3 linked violations
- June 6, 1996State Compliance achieved2 linked violations
- November 4, 1991State Public Notification requested2 linked violations
- November 4, 1991State Formal Notice of Violation issued1 linked violation
- February 10, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
- January 26, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
Common questions
Is OSAGE MUNICIPAL WATER SUPPLY required to publish a Consumer Confidence Report?
- Yes. OSAGE MUNICIPAL WATER SUPPLY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is OSAGE MUNICIPAL WATER SUPPLY’s next Consumer Confidence Report due?
- OSAGE MUNICIPAL WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does OSAGE MUNICIPAL WATER SUPPLY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for OSAGE MUNICIPAL WATER SUPPLY.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
OSAGE MUNICIPAL WATER SUPPLY
641-732-3709
OSAGE, IA 50461