Terrell Creek which connects Lake Terrell to Birch Bay, runs through agricultural lands, residences, and industrial facilities. NESA began restoration of this watershed in the late 1990s, removing a number of fish passage barriers to reopen habitat for salmon. Since 2002, NSEA has also partnered with BP and various community groups like the Chums of Terrell Creek to restore stream habitat by removing invasive vegetation and replanting native trees and shrubs.

Terrell Creek not only provides cold, clean, and clear water essential for local coho and chum salmon populations, it also promotes healthy habitat for wildlife throughout the watershed including 170 bird species, steelhead, coastal and residential trout, and a diverse selection of Birch Bay shellfish.