
The Grand Canyon National Park (GRCA) water system violated drinking water standards over the past year. Even though these were not emergencies, as our customers, you have a right to know what happened and what we did to correct these situations.
GRCA is required to monitor our drinking water for specific contaminants on a regular basis. Results of regular monitoring are an indicator of whether our drinking water meets health standards. During August 2024 and the 2nd quarter of 2025 GRCA did not complete all monitoring or testing for Total Coliform, Chlorine, and Volatile Organic Compounds (VOC), and therefore cannot be sure of the quality of our drinking water during that time.






















































