| Subject | Counties Served |
| Groundwater | Statewide |
| Groundwater Contamination | Statewide |
| Groundwater Coordinating Council (GCC) | Statewide |
| Groundwater Quality Data | Statewide |
| Groundwater Quality Monitoring and Standards | Statewide |
| Monitoring Wells | Statewide |
| Underground Injection Control (UIC), Underground Injection of Fluids | Statewide |
| Wellhead Protection | Statewide |