Biodiversity in the Puget Sound

Puget Sound, a complex inlet of the Pacific Ocean and part of the Salish Sea in Washington State, is both economically important to the region and home to a vibrant and diverse marine ecosystem that includes rare and endangered species like the killer whale (orca) and Chinook salmon. Unfortunately, the condition of the Sound has been declining for decades. With more than 4 million residents in its drainage basin, the quality of the Sound has been degraded by chemical pollutant discharges, silt and sediment runoff, and the introduction of invasive species. Fortunately, there are many organizations involved in efforts to protect the Sound. In this unit, you’ll focus on possible steps to reduce the movement of total suspended solids (TSS) from Seattle’s paved surfaces into the Sound. You’ll evaluate stormwater detention basins, rain gardens, and porous pavements as possible solutions to the TSS issue and justify your suggested course of action to help protect this critical ecosystem.