When it rains, stormwater flows down Capitol Hill streets, collecting oil, metals and other pollutants, before flowing directly into Puget Sound. In the future, much of that water will be captured and ...

As the rains of early fall bathe the close-packed apartment houses and car-jammed streets of Capitol Hill, it's a sure thing that the drops will hit hard surfaces, ooze together on their way into ...

SEATTLE – A pair of swales are naturally filtering polluted stormwater that runs through South Lake Union. Thousands of vehicles move through South Lake Union every week, but something less obvious is ...