| Subject | Counties Served |
| Sanitary Sewer Collection Systems | Ashland, Bayfield, Burnett, Douglas |
| Wastewater Treatment Plants | Ashland, Bayfield, Burnett, Douglas |
| WPDES Permits, Compliance Maintenance Annual Report (CMAR) | Ashland, Bayfield, Burnett, Douglas |
| WPDES Permits, General Permit Coordinator | Ashland, Bayfield, Burnett, Douglas |
| WPDES Permits, Groundwater | Ashland, Bayfield, Burnett, Douglas |
| WPDES Permits, Land Application and Treatment | Ashland, Bayfield, Burnett, Douglas |