In Astoria, Oregon, public works employees recently took media members on a tour of the Hypalon geomembrane floating cover atop the city’s Reservoir 3. The department praised the effectiveness of the floating cover and liner system that has reduced turbidity from 35 pounds per day to 3. The concrete base, 27-foot-deep reservoir was constructed in 1919. The city now plans to liner and cover its Reservoir 2 in the same manner.