| Subject | Counties Served |
| Approvals of Drinking Water Systems, Cities, Towns, Villages, Subdivisions, Sanitary Districts | Kenosha, Racine, Walworth, Waukesha |
| Complaints about water system operators | Kenosha, Racine, Walworth, Waukesha |
| Complaints, Specific Water Systems | Kenosha, Racine, Walworth, Waukesha |
| Consumer Confidence Reports (CCR) | Kenosha, Racine, Walworth, Waukesha |
| Municipal Plan Reviewer | Kenosha, Racine, Walworth, Waukesha |
| Public Drinking Water Monitoring Requirements | Kenosha, Racine, Walworth, Waukesha |
| Public Drinking Water System Municipal: City, Town, Village, Sanitary District | Milwaukee, Racine, Waukesha |
| Security of Community Water Systems | Kenosha, Milwaukee, Racine, Sheboygan, Walworth, Washington, Waukesha |
| Vulnerability Assessments for Public Water Supplies | Kenosha, Racine, Walworth, Waukesha |
| Wellhead Protection | Kenosha, Racine, Walworth |