Muir Beach’s water quality has significantly improved over the past eight years, the San Francisco Bay Water Quality Control Board declared last month when it removed the beach from a list of water bodies impaired by bacteria. National Park Service spokespeople say the improvement was likely linked to the recent restoration of Redwood Creek.
 
“This has been one of the most significant watershed restorations we have ever done,” said Alexandra Picavet, a spokeswoman for…