Home » Blog posts » Are low flows changing in Puget Sound streams? Issaquah Creek. Photo courtesy of Nicholas Georgiadis. Are low flows changing in Puget Sound streams? August 6, 2018A 2018 report from Nicholas Georgiadis at the University of Washington Puget Sound Institute analyzes the effect of rainfall and human-caused factors on regional summer stream flows.The report is available in the Encyclopedia of Puget Sound.