Wind and rain hammer the coast in the early morning hours at Copalis Beach in Ocean City. But Dawn Radonski is already out in her waders, waiting for the perfect moment to pull a five-gallon bucket of saltwater from the waves. She’s a harmful algal bloom specialist with the Quinault Indian Nation, and she’s sampling for a certain kind of especially toxic algae. “The pseudo-nitzschia,” Radonski says. “I look underneath the microscope, and I count all the pseudo-nitzschia that are in there. And if