Civil Beat reporter Christina Jedra will moderate this panel as experts  explain how Honolulu's aquifers work and why in the case of Red Hill, so many answers remain unknown when it comes to Red Hill.

Ernie Lau, Manager and Chief Engineer, Board of Water Supply

Donald Thomas, Geochemist and Director of the Center for the Study of Active Volcanoes at UH Hilo

Fenix Grange, Supervisor, Hazard Evaluation and Emergency Response Office at the Dept. of Health

Civil Cafe: Red Hill And The Threat To Honolulu's Aquifer