San Diego County is leveraging its abundant water supply to assist Arizona and Nevada, as these states face drastic cuts in their Colorado River water allocations.
The San Diego County Water Authority has approved an initial agreement to sell water from its Carlsbad desalination plant, the largest in North America, to these desert states. This move aims to offset their reliance on the dwindling Colorado River, which supports 40 million people across seven states.
The Colorado River’s flow has been severely impacted by climate change and population growth, leading to significant reductions in water levels at Lake Mead, the largest reservoir in the United States. As a result, states like Arizona have already cut water consumption by nearly a third. To address these challenges, San Diego plans to sell its share of Colorado River water, using funds from these sales to boost desalination plant output.
According to MSN, the agreement, pending federal and state approvals, could enable the first-ever interstate transfers of Colorado River water. This innovative approach allows San Diego to act as a water broker, trading access rights rather than physically transporting water. The plan could supply enough water for approximately 500,000 people.
AOL reports that the Carlsbad desalination plant, which began operations in 2015, has been instrumental in San Diego’s water independence. The plant’s capacity could be increased if other states invest in buying San Diego’s Colorado River water allotment. This strategy not only addresses regional water shortages but also helps manage San Diego’s water costs.
The initiative has garnered support from California Governor Gavin Newsom, who encourages joint investments in water recycling and desalination. As reported by the Los Angeles Times, the San Diego County Water Authority’s efforts demonstrate a shift towards regional collaboration in managing water resources, offering a potential model for other states facing similar challenges.
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