Oil-like sheen discovered near Rock Island Dam

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UPDATE (4:45 p.m.): Chelan PUD determines cause of small oil sheen near Rock Island Dam 

ROCK ISLAND – Maintenance work on Powerhouse 1 at Rock Island Dam may be the cause of a small oil-like sheen on the water below the Dam.

The oil sheen was discovered yesterday. Chelan County PUD Communications Director Suzanne Hartman says Department of Ecology officials are on site trying to determine just what that sheen is.