SACRAMENTO, July 26 — The California State Water Resources Control Board (SWRCB) is poised to decide whether data centres can secure water rights from the Colorado River, a ruling that could set a precedent for non-essential industrial uses amid worsening drought conditions. The board, which oversees water rights, water quality, and enforcement of the California Environmental Quality Act (CEQA), consists of five members appointed by the governor and confirmed by the state Senate.
Its authority extends to approving or denying applications for appropriative water rights from the Colorado River or state sources. The decision centres on an application for water rights tied to a data centre project.
Under California’s regulatory framework, such applications undergo environmental review, including public comment periods and potential hearings. Historically, the SWRCB has denied industrial water rights when supplies are deemed unsustainable or when more efficient alternatives exist.
Precedent in the balance
The board’s ruling, expected by late 2025, will determine whether data centres—classified as non-essential uses—can access the Colorado River during a prolonged drought. The decision follows a 2023 temporary urgency change petition approved for the city of Indio, which allowed Colorado River water diversions for drought relief. That precedent underscores the board’s discretion in balancing competing demands on a shrinking resource.
The SWRCB’s role is not merely administrative. It evaluates whether proposed water uses align with sustainability goals, particularly under CEQA, which mandates environmental impact assessments.
For data centres, which require significant water for cooling and operations, the board’s scrutiny will hinge on whether such demands can be justified when residential and agricultural needs remain acute.
Mechanics of the review
The application process for water rights in California is rigorous. Applicants must demonstrate that their proposed use does not impair existing rights or harm the broader ecosystem. The SWRCB’s environmental review includes public comment periods, during which stakeholders—including environmental groups, agricultural interests, and local governments—can object or propose conditions.
In the case of the data centre application, the review will scrutinise the project’s water efficiency measures. If the board finds that alternatives—such as recycled water or air-cooled systems—are viable, it may deny the application on grounds of unsustainability.
This approach reflects the board’s long-standing practice of prioritising essential uses over industrial expansion when resources are constrained.
Broader implications for California’s water future
The SWRCB’s decision will ripple beyond the immediate applicant. California’s water crisis has intensified in recent years, with the Colorado River operating at historically low levels. The board’s ruling could influence how other non-essential industries—including manufacturing and large-scale agriculture—navigate future water rights applications.
Environmental advocates argue that the board must hold the line on industrial water use to protect the state’s dwindling supplies. Conversely, proponents of the data centre industry contend that such facilities are critical to California’s economic future, particularly in regions like the Central Valley, where high-tech growth is a stated priority.
The board’s composition—five members appointed by the governor—ensures that political and regional interests play a role in the decision. Given the stakes, the ruling is likely to spark debate over whether California’s water policies should prioritise economic development or conservation.
What to watch next
The SWRCB’s timeline suggests a decision by late 2025, but delays are possible if the environmental review uncovers unresolved issues. Stakeholders on all sides will be monitoring the process closely, as the outcome could redefine the boundaries of water rights in California for years to come.
Sources
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