Big Lake, MN · Sherburne County
Big Lake Water System
Consumer Confidence Report status
Big Lake 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 Big Lake.
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)
- MN1710002
- System type
- Community Water System
- Population served
- 13,056
- Service connections
- 4,025
- Ownership
- local government
- Water source
- groundwater (wells)
Big Lake is one of 93 community water systems in Minnesota in the 10,001 to 100,000 people size category, serving 13,056 people from groundwater.
As of August 1, 2026, its federal record holds 2 entries between 1994 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.
All 2 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.
Violation history
Monitoring, Routine Minor (TCR)
—Coliform (TCR)
March 1, 2009 – March 31, 2009
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
February 1, 1994 – February 28, 1994
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 |
|---|---|---|---|---|
| March 1, 2009 – March 31, 2009 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| February 1, 1994 – February 28, 1994 | 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
- June 10, 2009State Public Notification received2 linked violations
- May 5, 2009State Public Notification requested2 linked violations
- May 4, 2009State Public Notification requested2 linked violations
- October 21, 1998State Violation/Reminder Notice4 linked violations
- January 15, 1993State Violation/Reminder Notice5 linked violations
- September 30, 1986State Violation/Reminder Notice1 linked violation
- September 30, 1984State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- September 30, 1982State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
Common questions
Is Big Lake required to publish a Consumer Confidence Report?
- Yes. Big Lake 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 Big Lake’s next Consumer Confidence Report due?
- Big Lake’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Big Lake have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Big Lake.
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
Big Lake City Council
7632512979
Big Lake, MN 55309