Share 'Pond using chemicals safe to eat bluegill from?'

Hey guys, My in-laws have a pond behind their place that has fountains and is kept/cared for by their community. They put some sort of chemicals in the pond that I believe is to keep the weeds down. Endothall-aquathol k=do not use for domestic purposes or agriculture irrigation for 15 days and chelated copper-captain xtr. Can I catch and eat gills from this pond, or should I pass? It's like to…