 It attributes the change to sewage treatment upgrades and measures taken to improve air quality. The report looks at indicators including the condition of aquatic vegetation, total levels of phosphorus and nitrogen, and water clarity. In other news, congressional Democrats are still not completely unified behind another White House run by President Biden. But his support within the party appears to be stabilizing. The latest from WTOP's Mitchell Miller, today on The Hill. As I've said before, I'm with Joe.