This is about the Surface water study underway across the State and in the Edisto river basin
Alex Pellett presentation to Friends of Edisto June 18, 2016: Alex_Pellett_BlackwaterFest
Presentation was cut short and information here on how withdrawal limits are computed, etc. is a bit cryptic
SC Department of Natural resources/Water/Hydrology has links to the ground water study and its parent site (Water) has other links to monitoring
Surface Water Modeling and Assessment – on-going study