A large soil slump continues to add sediment into Butte Creek after having accumulated from water running downhill of a breach in the Butte Canal [last] Thursday, and the first sighting of a salmon that died because of sedimentation has been reported. Over the weekend, the breach received a permanent repair and awaits concrete to cure before the canal is back in service. PG&E is planning to excavate the soil slump. … Spring-run salmon, which arrive around this time of year and stay in cool pools of water until spawning season, are reported to be in relatively low counts this year, with about 500 salmon when the creek typically sees 5,000-10,000 each year. Allen Harthorn, director of Friends of Butte Creek, predicted the sedimentation could suffocate the fish resulting in death.