| Subject | Counties Served |
| Wastewater Treatment Plants | Florence, Forest, Langlade, Oneida, Sheboygan, Vilas |
| WPDES Permits, Compliance Maintenance Annual Report (CMAR) | Florence, Forest, Langlade, Oneida, Shawano, Vilas |
| WPDES Permits, Discharge Monitoring Reports | Florence, Forest, Langlade, Oneida, Shawano, Vilas |
| WPDES Permits, Operation, Maintenance of Wastewater | Florence, Forest, Langlade, Oneida, Shawano, Vilas |
| WPDES Permits, Operator Certification, Wastewater Treatment Plants | Florence, Forest, Langlade, Oneida, Shawano, Vilas |