18/08/2026
The 2025 Puget Sound Marine Waters Overview report is now available: https://www.psp.wa.gov/PSmarinewatersoverview.php
The Puget Sound region is home to more than 4.2 million people. These people visit the Sound’s beaches, eat the local seafood, and enjoy the diversity of life in and around these waters. The Sound is a social, cultural, and economic lifeline for Western Washington, where the health of human communities and the health of the Sound are inextricably linked.
Each year, the Marine Waters Work Group releases the annual Puget Sound Marine Waters Overview report. This report is a collaborative effort that combines a wealth of data from numerous comprehensive environmental monitoring programs. Since 2011, the group has been reporting on the physical, chemical and biological conditions of Puget Sound, including many conditions related to human health and pollution. The 2025 report represents the collective effort of 54 contributors from federal, tribal, state, and local agencies, academia, nonprofits, and private and volunteer groups, and provides valuable insight on the state of Puget Sound.
Read more about the effects of climate and weather, river inputs, seawater temperature, salinity, nutrients, dissolved oxygen, ocean acidification, phytoplankton, bio-toxins, bacteria and pathogens, shellfish resources at Puget Sound Partnership