| bkpt_pwit | Identify breakpoint location with PWIT |
| bkpt_ymax | Identify breakpoint location with Ymax |
| clean_vahydro | Clean dataset of ecological and hydrologic data |
| elfchange | Plot percent richness change for various percent flow reductions |
| elfdata | Retrieve and format data for ELF generation |
| elfdata_vahydro | Retrieve data from DEQ VAHydro database and format data for ELF generation. Contact Virginia DEQ Office of Water Supply to request access to the VAHydro database. |
| elfgen | Generate Ecological Limit Function (ELF) |
| richness_change | Calculate change in richness resulting from a percent reduction in flow |