What's already happening: The city of Bellevue strives to preserve its streams, lakes and wetlands for the benefit of people, fish and wildlife. But, as water from rainfall flows over rooftops, streets, yards and other land surfaces, it picks up and carries pollutants from many different sources. The city is working hard to communicate to its citizens the importance of everyone doing their part to keep streams, lakes, wetlands and in turn the Puget Sound healthy.