Ada, MN · Norman County
Ada Water System
Consumer Confidence Report status
Ada 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 Ada.
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 Minnesota’s official records. Always confirm current status with Minnesota before making decisions based on this information.
System facts
- System ID (PWSID)
- MN1540001
- System type
- Community Water System
- Population served
- 1,725
- Service connections
- 839
- Ownership
- local government
- Water source
- groundwater (wells)
Ada is one of 330 community water systems in Minnesota in the 501 to 3,300 people size category, serving 1,725 people from groundwater.
As of August 1, 2026, its federal record holds 6 entries between 1998 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.
All 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, the Lead and Copper Rule, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.
Violation history
Water Quality Parameter M/R
—Lead and Copper Rule
July 1, 2019 – December 31, 2019
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
March 1, 2009 – March 31, 2009
ResolvedMonitoring and Reporting (DBP)
—Chlorine
January 1, 2009 – March 31, 2009
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
October 1, 2007 – October 31, 2007
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 2007 – September 30, 2007
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
March 1, 1998 – March 31, 1998
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2019 – December 31, 2019 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| March 1, 2009 – March 31, 2009 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2009 – March 31, 2009 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| October 1, 2007 – October 31, 2007 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| September 1, 2007 – September 30, 2007 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| March 1, 1998 – March 31, 1998 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- March 13, 2020State Compliance achieved1 linked violation
- January 16, 2020State Public Notification requested1 linked violation
- December 6, 2019State Violation/Reminder Notice3 linked violations
- August 4, 2009State Violation/Reminder Notice2 linked violations
- June 10, 2009State Public Notification received2 linked violations
- May 5, 2009State Public Notification requested6 linked violations
- December 27, 2007State Public Notification received2 linked violations
- December 5, 2007State Public Notification requested1 linked violation
- December 5, 2007State Formal Notice of Violation issued1 linked violation
- November 26, 2007State Compliance achieved2 linked violations
- November 19, 2007State Formal Notice of Violation issued1 linked violation
- November 19, 2007State Public Notification requested1 linked violation
- October 25, 2004State Public Notification received1 linked violation
- September 29, 2004State Formal Notice of Violation issued1 linked violation
- September 29, 2004State Public Notification requested1 linked violation
- April 15, 1998State Formal Notice of Violation issued1 linked violation
- April 15, 1998State Violation/Reminder Notice1 linked violation
- April 15, 1998State Public Notification requested1 linked violation
- July 31, 1989State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- September 30, 1985State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- September 30, 1985State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- September 30, 1984State Compliance achievedgeneral compliance action — not tied to a specific violation on record
Common questions
Is Ada required to publish a Consumer Confidence Report?
- Yes. Ada 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 Ada’s next Consumer Confidence Report due?
- Ada’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Ada have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Ada.
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
Ada City Council
2187845520
Ada, MN 56510