Apalachicola River and Bay Fish Kills on the Apalachicola Possibly Linked to Sewage Spill by Rob Diaz de Villegas October 20, 2018 by Rob Diaz de Villegas October 20, 2018 FWC suspects that fish kills on the Apalachicola River are connected to a sewage spill in Wewahitchka. Fish kills are also common following hurricanes.