Population Served
12.4K
Service Connections
4.0K
Total Violations
31
Health-Based Violations
7
Lead & Copper Data
Lead Level
Safe1.00 ppb
Action Level: 15 ppb (EPA) · Sampled: 2025-12-31
015 ppb action level
Copper Level
1600 ppb
Action Level: 1,300 ppb (EPA) · Sampled: 1993-12-31
Copper action level exceeded
System Details
- Water Source
- Groundwater
- System Type
- Community Water System
- City
- Big Lake
- ZIP Code
- 55309
- Counties Served
- Sherburne
- Cities Served
- Big Lake
- Open Violations
- 0
- State
- Minnesota
Violation Summary
31
Total Violations
7
Health-Based
0
Open Now
Most recent violation: 2009-03-01
Explore Minnesota Water Quality
See all water systems, lead data, and violation trends for Minnesota.
Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: MN1710002.SafeWater Home