Population Served
10.5K
Service Connections
3.9K
Total Violations
20
Health-Based Violations
13
Lead & Copper Data
Lead Level
Elevated5.95 ppb
Action Level: 15 ppb (EPA) · Sampled: 2023-09-30
015 ppb action level
Copper Level
No copper sampling data available
System Details
- Water Source
- Groundwater
- System Type
- Community Water System
- City
- DEFOREST
- ZIP Code
- 53532-0510
- Counties Served
- Dane
- Cities Served
- DEFOREST
- Open Violations
- 0
- State
- Wisconsin
Violation Summary
20
Total Violations
13
Health-Based
0
Open Now
Most recent violation: 2024-10-17
Explore Wisconsin Water Quality
See all water systems, lead data, and violation trends for Wisconsin.
Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: WI1130221.SafeWater Home