| Subject | Counties Served |
| Approvals of Drinking Water Systems, Cities, Towns, Villages, Subdivisions, Sanitary Districts | Buffalo, La Crosse, Pepin, Vernon |
| Complaints about water system operators | Buffalo, La Crosse, Pepin, Vernon |
| Complaints, Specific Water Systems | Buffalo, La Crosse, Pepin, Vernon |
| Consumer Confidence Reports (CCR) | Buffalo, La Crosse, Pepin, Vernon |
| Drinking Water Systems Design/Plan Review: City, Town, Village, Subdivision, Sanitary District | Buffalo, La Crosse, Pepin, Vernon |
| Public Drinking Water System Municipal: City, Town, Village, Sanitary District | Buffalo, La Crosse, Pepin, Vernon |
| Security of Community Water Systems | Buffalo, La Crosse, Pepin, Vernon |
| Wellhead Protection | Buffalo, La Crosse, Pepin, Vernon |