Arizona's water efficiency

Did you know?

You're already far more efficient than your grandparents, or even your parents, when it comes to energy and water use. Innovations in home building, technology, appliances and more have made our homes and cities more energy efficient. Just like a home built today has more efficient windows, and modern air conditioners use less energy to cool a home, your home uses less water today.

Consider Arizona, with its massive population growth over the last several decades. According to the Arizona Department of Water Resources, we’re using less water today than we did in 1957 when just 1.1 million people called Arizona home. It's a testament to changes in the way our state uses water, smarter water management, innovations in technology and – last but certainly not least – simple choices that ordinary people are making every day that use less water.

Here are some of the ways Arizona is using water wisely today:​

• The CAP: The Central Arizona Project revolutionized the way water was managed and distributed in Arizona. The first delivery of water from the Central Arizona Project came on May 22, 1985. Today, CAP water accounts for approximately 22% of Arizona's total water usage.
• The Groundwater Management Act: We wouldn't have the Arizona Department of Water Resources to regulate our water supply if it wasn't for the Groundwater Management Act, which was signed in 1980. Among the Act's regulations are a requirement that developers demonstrate a 100-year supply of water before a new development is built in most areas of the state and a limitation on the amount of groundwater that can be pulled from the aquifer, promoting the use of surface water over groundwater.
• The Lower Colorado River Drought Contingency Plan: In 2019 stakeholders in Arizona and other lower Colorado River basin states signed the Lower Basin Drought Contingency Plan (DCP), which established a managed, tiered system of responses to varying levels of water shortage in the Colorado River. EPCOR was an active participant in drafting the DCP and is the only private water company participating in the DCP’s Mitigation Agreement.
• The Energy Star Program: A program created in 1992 by the Environmental Protection Agency and the Department of Energy, Energy Star certifies products that consume less energy than their counterparts. To receive an Energy Star seal, an appliance must use 20-30% less water than federal standards. Dishwashers and water heaters are among the types of appliances that can receive Energy Star designation.
• Low-Flow Fixtures: Showerheads, faucets, toilets, clothes washers and dishwashers that use less water are, well, fixtures on the shelves of today's home-improvement stores. These new devices can use 25-60% less water.​ Learn what else you can do to save water with our helpful tips​.