Water For Today, Water For Tomorrow
Marana Water Sustainability Outlook
Town of Marana Water’s designation of assured water supply from the Arizona Department of Water Resources recognizes that Marana water can reliably serve up to 15,353-acre-feet per year from our aquifer for over 100 years. As a designated provider, Marana Water is required to maximize the use of renewable supplies and help to attain and maintain the aquifer management goal for safe-yield.
Upcoming Event: Marana Water Open House
Marana Water customers and Tucson Water customers within the Town of Marana are invited to attend a Marana Water Open House
When: TBA
Time: TBA
Where:
Marana Municipal Complex
11555 W. Civic Center Drive
Marana, AZ 85653.
Presentations
What Are Our Assured Water Supplies?
Does Marana Water Have Enough to Meet Current and Future Demands?
Current and Committed Water Demands
In 2023, Marana Water used approximately 21% of the supply recognized in its designation to serve current customers. Under the assured water supply program, about 23% of the recognized supply is reserved for customers in platted developments. The remaining 56% will serve future customers in developments not yet fully platted.
Does Marana Have Sufficient Groundwater?
Water Resource Management
1940-1998 in Greater Tucson Area
Aquifer Water Level Changes, 1940-1998. Courtesy of City of Tucson Water.
Water Resource Management
2000-2016 in Greater Tucson Area
Aquifer Water Level Changes, 2000-2016. Courtesy of City of Tucson Water.
The figure to left shows significant water level declines over a period of aquifer overdraft from 1940 to the turn of the century. The figure at right shows how, since the turn of the century, water providers have reversed this decline by importing CAP water, recycling water, conserving water, and/or replenishing groundwater. Together, the figures show the importance of sound management of our aquifer and water resources.
Marana Water actively partners with other local water providers, stakeholders, and local and federal agencies to ensure the sound management of our water resources. For more information, visit the links below.
What Does the Colorado River Shortage Mean for Marana?
In 2022, the first-ever tier 1 shortage reduced the available water supply for the Central Arizona Project (CAP) by about 30%. This level of shortage impacted agricultural water users; water supplies for cities and towns were not affected. Marana Water’s CAP water supply was not reduced by this tier 1 shortage. Through a continuing tier 1 shortage condition, Marana Water has received its full delivery of M&I priority supply to recharge our aquifer. Through aquifer recharge and recovery, Marana is prepared to continue providing high quality water without interruption, independent of CAP water deliveries.
For more information on current Colorado River Conditions and CAP water supply visit CAP’s DASHBOARD.
What a Tier 1 Shortage Declaration Means for Marana?
Read the Q&A(PDF, 38KB)
Additional Resources
Central Arizona Project
Central Arizona Groundwater Replenishment District
Lower Santa Cruz Basin Study
US Geological Surveys Aquifer Monitoring Programs