Recent tests of the Ogeechee River still show disturbing levels of contaminants, and fish are still dying, said Ogeechee Riverkeeper Dianna Wedincamp. Water samples taken Aug. 16 show extremely high levels of formaldehyde, as well levels of residue, color, nitrogen, ammonia and sulfates being above normal, she said. The testing is routinely conducted, with a higher level of awareness following the massive fish kill in late May that left approximately 34,000 fish dead and rotting in the river, she said.