The Arizona Water Banking Authority (AWBA; Water Bank) was established in 1996 to store the unused portion of Arizona’s annual Colorado River entitlement in Central and Southern Arizona. The AWBA stores water in underground aquifers to earn long-term storage credits. These credits can be recovered (pumped) during a shortage to provide back-up water supplies (known as "firming") for Arizona water users.
Through 2019, the Water Bank has accrued 4.28 million acre-feet (MAF) of long-term storage credits (LTSCs): 3.67 MAF for Arizona uses and 0.61 MAF on behalf of the State of Nevada. The AWBA firms water supplies for Central Arizona Project (CAP) Municipal and Industrial (M&I) subcontract holders and communities along the Colorado River. As the agent for the State, the AWBA is responsible for meeting the State's Indian firming obligations under the Arizona Water Settlements Act (AWSA). The Water Bank also assists with meeting the State's water management objectives under the Groundwater Code and provides the mechanism for interstate water banking with the other Lower Basin States. By storing water, the Water Bank helps to ensure long-term water supplies for Arizona and neighboring states.
Corona Virus (COVID-19)
AWBA is continuing to closely monitor the guidance of the Centers for Disease Control and Prevention (CDC) and the Arizona Department of Health Services (ADHS). CDC and ADHS have not recommended the closure of offices, but are recommending telework and other alternatives, when available, to minimize exposure risk to staff and customers. We remain open for business and ready to serve the people of Arizona. For additional information about continuing operations: https://new.azwater.gov/covid-19.
2019 Annual Report
In 2019, there was no excess CAP water available to the AWBA for storage. Still, the AWBA continued to make progress on its firming goals through other means. The AWBA purchased 19,257 acre-feet of LTSCs: 13,100 acre-feet in the Phoenix AMA and 6,157 acre-feet in the Tucson AMA. Cumulatively, the AWBA has accrued or acquired 4.28 million acre-feet of LTSCs.