The South Waterfront area, with condos and apartments rising 30 stories, is perhaps the last place one might think of protecting salmon. After all, 90 percent of the new neighborhood is covered in pavement or buildings. But the developers and city planners included water-treating ponds, green roofs and other elements that would slow and clean storm water that might otherwise poison salmon and pollute the Willamette River… Result: The runoff will be comparable to what the area would have produced in its pristine state a century ago, as if the development hadn’t happened at all, according to Salmon Safe… Read the article.