E. coli Detected in Grand Canyon National Park Water Supply: Updated Analysis and Ongoing Concerns
Introduction In August 2023, the National Park Service (NPS) confirmed that Escherichia coli (E. coli) bacteria were detected in the water supply serving Phantom Ranch at the bottom of Grand Canyon National Park, Arizona, prompting a boil-water advisory for visitors. Although the advisory was later lifted, ongoing environmental conditions and water quality investigations continue to…
