Tucson Water is committed to providing its customers with timely and meaningful information about the quality of Tucson's drinking water. To improve communication, we established a monitoring program to closely track the water quality throughout the distribution system and within Tucson's neighborhoods. The U.S. Environmental Protection Agency (EPA) supported our efforts to improve the collection and communication of water quality information to our customers by awarding an EMPACT grant.

• Introduction to Water Quality — Background information on water quality terms and definitions; Frequently Asked Questions about water quality issues; information on Backflow Prevention; a description of Tucson's water quality monitoring program (including maps of all monitoring locations); and information on Tucson's water quality laboratory.
• Emerging Water Quality Issues — Tucson Water tracks those water quality issues that are emerging on the national level and what they might mean for the utility and for you. Topics and links include 1,4-Dioxane; Arsenic; Lead and Copper; Mercury; and Radon.
• EMPACT News (Spring 2011) – Water quality information newsletter (pdf; 1.54 Mb)
• EMPACT Newsletter Archive (English and Spanish)
• Annual Water Quality Reports — Tucson's Annual Reports on Water Quality for each of the years from 1998 through 2010.
• Tucson's Water Quality — Up-to-date information on the water quality of Tucson's water resources and the water quality throughout the distribution system.
• Water Quality In My Neighborhood — Up-to-date information on the water quality in your water quality zone, including the most recent measures at all monitoring locations.
• Tucson's EMPACT Grant — Background information on Tucson's EMPACT grant award and what it means to all Tucson residents.
• Detailed Water Quality Data — Tucson Water has been publishing the results of its monthly water quality testing since 1997.
• Publications — Link to some of Tucson Water's most popular water quality publications

Tucson Water has a Water Quality Information Line with current information about the quality of the water we deliver. The recorded information on this phone line is updated on a regular basis and includes the most recently available monitoring results for bacteria, chlorine, hardness, pH, sodium, and total dissolved solids. The phone number is (520) 791-2544.

To report a water quality concern, contact Tucson Water's Customer Support Office at (520) 791-5945.