The Ouray hydrodam’s occasional release of sediment into the Uncompahgre River doesn’t have significant impacts on water quality, according to the findings of a study presented to Ouray County Commissioners on Tuesday.

Ashley Bembeneck, the Uncompahgre Watershed Partnership’s technical coordinator, told commissioners she tested water at several locations on the river below the hydrodam after it released sediment into the stream. The study, which included data from multiple years, aimed to a...