Learn more at the links below or:
- Contact the Customer Support Unit at 520-791-2544.
- Go to the EPA web page on Drinking Water Contaminants
- Go to the EPA web page on the Safe Drinking Water Act
Contaminants of Emerging Concern
Tucson Water’s “Sentry Program,” a proactive, voluntary monitoring component of its water quality management program.
Maximum Contaminant Levels
A list of specific regulated drinking water MCLs or Alert Levels.
1,4-Dioxane
About 1,4-dioxane, a stabilizer in industrial solvents in aircraft manufacturing facilities from the 1940s-1970s.
Lead and Copper
Information on Tucson Water’s lead and copper monitoring program.
Microbiological Testing
Monitoring for bacteria and other microorganisms and what happens if they are found.
About the Water Quality Laboratory
Highly-skilled professionals with backgrounds in chemistry, microbiology, engineering, computers, and management.