Water Resources

ADWR is the steward of Arizona's water future and ensures long-term, reliable water supplies to support the continued economic prosperity of the State.

The city's water department, which,as a Public Water Utility serving residential, commercial and industrial customers both within and outside of the city's boundaries. Website provides news and resources about water in Southern Arizona.

Information about public water systems and their violations of EPA's drinking water regulations, as reported to EPA by the states. These regulations establish maximum contaminant levels, treatment techniques, and monitoring and reporting requirements to ensure that water systems provide safe water to their customers.

Information from the U.S. Environmental Protection Agency on water-related issues and laws & regulations.

Water is one of six science mission areas of the U.S. Geological Survey. This website collects and disseminates reliable, impartial, and timely information that is needed to understand the nation's water resources.

The U.S. Geological Survey's National Water-Use Information Program is responsible for compiling and disseminating the nation's water-use data. The USGS works in cooperation with local, state, and federal environmental agencies to collect water-use information. USGS compiles these data to produce water-use information aggregated at the county, state, and national levels.

Provides data and information by country on water resources, water uses, agricultural water management.

Global information resources for water-related issues.