| Subject | Counties Served |
| Sanitary Sewer Collection Systems | Green Lake, Marquette, Outagamie, Waushara, Winnebago |
| Wastewater Treatment Plants | Green Lake, Marquette, Outagamie, Waushara, Winnebago |
| WPDES Permits, Aquaculture | Green Lake, Marquette, Outagamie, Waushara, Winnebago |
| WPDES Permits, Compliance Maintenance Annual Report (CMAR) | Green Lake, Marquette, Outagamie, Waushara, Winnebago |
| WPDES Permits, Discharge Monitoring Reports | Green Lake, Marquette, Outagamie, Waushara, Winnebago |
| WPDES Permits, Food and Meat Processing | Green Lake, Marquette, Outagamie, Waushara, Winnebago |
| WPDES Permits, Permit Compliance System Database | Green Lake, Marquette, Outagamie, Waushara, Winnebago |
| WPDES Permits, Pulp and Paper Mills | Green Lake, Marquette, Outagamie, Waushara, Winnebago |
| WPDES Permits, Water Quality Trading | Green Lake, Marquette, Outagamie, Waushara, Winnebago |