| Subject | Counties Served |
| Antidegradation | Statewide |
| Clean Water Act Integrated Reporting | Statewide |
| National Aquatic Resource Surveys | Statewide |
| Odor Complaints, Land Spreading | Statewide |
| Outstanding/Exceptional Resource Waters | Statewide |
| Sanitary Sewer Collection Systems | Statewide |
| Sewer Extension Plan Review | Statewide |
| Sewer Service Area Planning | Statewide |
| Surface Water Integrated Monitoring System (SWIMS) | Statewide |
| Surface Water Spills | Statewide |
| Systems Planning and Data Integration | Statewide |
| Triennial Standards Reviews | Statewide |
| Use Attainability Analysis | Statewide |
| Wastewater Treatment Plants | Statewide |
| Water Assessment, Restoration and Protection (WARP) | Statewide |
| Water Quality Standards | Statewide |
| Water Resources Modeling | Statewide |
| WET, Whole Effluent Toxicity, Testing | Statewide |
| Wetland Invasive Species | Statewide |
| Wetland Invasive Species Monitoring & Tracking | Statewide |
| Wetland Monitoring and Assessment | Statewide |
| WPDES General Permits | Statewide |
| WPDES Permit Applications | Statewide |
| WPDES Permits, Adaptive Management | Statewide |
| WPDES Permits, Aquaculture | Statewide |
| WPDES Permits, Ballast Water | Statewide |
| WPDES Permits, Biomonitoring, Toxicity Testing | Statewide |
| WPDES Permits, Compliance Maintenance Annual Report (CMAR) | Statewide |
| WPDES Permits, Food and Meat Processing | Statewide |
| WPDES Permits, Food Processing Discharges | Statewide |
| WPDES Permits, General Permit Coordinator | Statewide |
| WPDES Permits, Groundwater Remediation Dischargers | Statewide |
| WPDES Permits, Metal Finishing and Electroplating | Statewide |
| WPDES Permits, Operation, Maintenance of Wastewater | Statewide |
| WPDES Permits, Permit Compliance System Database | Statewide |
| WPDES Permits, Permit Drafting | Statewide |
| WPDES Permits, Permits Web Page | Statewide |
| WPDES Permits, Phosphorus | Statewide |
| WPDES Permits, Power Plants | Statewide |
| WPDES Permits, Pulp and Paper Mills | Statewide |
| WPDES Permits, SWAMP Data Manager | Statewide |
| WPDES Permits, Thermal | Statewide |
| WPDES Permits, Water Quality Standards Variances | Statewide |