Puget Sound water quality is changing due to excessive levels of nutrients
from human sources that are adversely affecting the nation's second largest marine estuary. Monitoring data has identified many places throughout Puget Sound that are impaired for dissolved oxygen.
The Puget Sound Nutrient Source Reduction Project helps us work collaboratively with communities, stakeholders, and those already working to manage Puget Sound to address human sources of nutrients. This work focuses regional investments to control nutrients from point and non-point sources to help Puget Sound meet dissolved oxygen (DO) water quality criteria.