Work to stop material from a former landfill site seeping into the River Ericht as it flows through Blairgowrie has been suspended following the discovery of asbestos.
Perth and Kinross Council started an eight-week project to remove waste from a 60-metre stretch of the embankment at Welton Farm on June 20.
Flooding exposed a part of the former dump in early 2021, and rubbish and chemical waste fell into the river on several occasions as a result of the damage.