URGENT UPDATE: Tucson faces an escalating water crisis, with its reliance on the dwindling Colorado River becoming increasingly precarious. As of now, Lake Mead is in a Tier 1 shortage and is projected to hit record lows by 2027, according to the U.S. Department of the Interior. This alarming trend threatens Tucson’s water supply and demands immediate action from city officials and residents alike.
Tucson’s water supply is approximately 80% dependent on the Colorado River, which is facing severe shortages. The Central Arizona Project (CAP) has been forced to limit water allocations, which directly impacts the city’s ability to replenish its groundwater reserves. This system is vital for Tucson’s long-term water sustainability, yet it risks becoming less effective as upstream water sources wane.
Without adequate CAP water, Tucson’s growth could stagnate, leading to increased scarcity and a scramble for alternative water sources. Fortunately, local experts argue that Tucson has the potential to significantly increase its water supply through innovative stormwater runoff collection strategies.
Recent research from Arizona State University and the University of Arizona reveals that Tucson receives enough rainfall annually to meet its water consumption needs — and then some. However, less than 2% of this rainwater is currently harvested for reuse. Researchers Daoqin Tong and Courtney Crosson, along with PhD candidates Yinan Zhang and Qing Zhong, emphasize that the city can improve its infrastructure to capture and store this valuable resource.
“Tucson receives enough rainfall each year to fully meet its water consumption, yet we are not taking advantage of it,” said researcher Daoqin Tong.
The existing urban landscape, characterized by concrete and asphalt, hampers water absorption and exacerbates flooding. By implementing stormwater retention systems, Tucson could redirect excess runoff into the aquifer, minimizing street flooding while enhancing the city’s green spaces.
To tackle this critical issue, a proposed policy would require all new developments to incorporate stormwater retention infrastructure, such as permeable surfaces and onsite basins. This initiative is not only a proactive step towards diversifying Tucson’s water supply but also crucial for increasing groundwater recharge rates. As climate conditions worsen, such measures could help stabilize the city’s water resources and promote sustainable growth.
While initial construction costs may deter some developers, this policy holds the potential for significant long-term savings on water management. As water demand continues to rise, Tucson must prioritize sustainable practices to ensure a stable future.
As the water crisis intensifies, Tucson cannot afford to remain passive. The city needs decisive action to strengthen its groundwater recharge strategies and reduce reliance on uncertain external sources. By investing in stormwater management, Tucson can pave the way for robust urban development while securing its water future.
Tucson residents are encouraged to voice their opinions on this critical matter. Letters to the editor and guest opinions can be submitted to local publications to raise awareness and drive community action. The time for Tucson to act is NOW.
Stay informed and engaged with Tucson’s water supply challenges. Subscribe to local news outlets for the latest developments and community stories that matter.
