The Gainesville Times reports that federal authorities published their decision Friday, more than two months after a request by the Georgia Department of Natural Resources.
The corps on Saturday dialed back the water release on Saturday from 750 cubic feet per second to 650 cubic feet per second.
Corps officials said they did not act sooner because of concerns about water quality and environmental conditions downstream. Their corps said the latest observations and measurement put those concerns to rest.
A corps spokesman said the lower pressure won't be noticeable to onlookers at the dam.