As wildfire crews battled the Dragon Bravo Fire on the Grand Canyon’s North Rim in July 2025, the air turned toxic.A chlorine gas leak had erupted from the park’s water treatment facility as the building burned, forcing firefighters to pull back. The water treatment facility is part of a system that draws water from a fragile spring. It’s the only water source and system for the park facilities on both rims, including visitor lodging and park service housing.
The fire also damaged some of the area’s water pipes and equipment, leaving fire crews to rely on a fleet of large
