LA County supervisors to consider examining health and environmental impacts of data centers

The Los Angeles County Board of Supervisors on Tuesday approved a motion aimed at assessing the impact of the growing number of data centers in the region.

The centers have drawn criticism for their potential health and environmental effects on surrounding communities, and for the amount of energy they use.

Around the country, the growth in the number of data centers — which house servers, storage systems and other technology — has been driven in part by the proliferation of artificial intelligence, which has drastically increased the need for critical internet technology infrastructure.

There are already more than 70 established data centers in the county, with that number likely to grow as developers approach cities and the county to create additional facilities, according to the motion authored by Supervisor Hilda Solis.

“Establishing local regulatory oversight of data center placement and operation is needed to ensure community and environmental health and safety is protected,” the motion states. “As newer centers expand in scale and complexity, their energy use and environmental footprint is also increasing, with little community engagement on the potential impacts on residents’ health and wellbeing.”

A representative of the data storage industry raised concerns about the motion, which calls for a moratorium on data center development in unincorporated L.A. County that would be initiated “as applicable.”

“What concerns me most with the motion is the inclusion of a moratorium,” said Khara Boender, director of state policy for the Data Center Coalition. “That sends a strong signal as to whether they are welcome in those areas.”

Data centers ‘underregulated’

Solis’ motion called on various departments including public health, public works and fire to provide findings regarding the health, environmental and safety impacts of data centers on neighboring communities, the impact on electrical and water resources and a review of how other jurisdictions around the county are regulating data centers within urban areas.

It also calls for a community education and outreach campaign to inform residents on potential impacts of advancing technologies.

The Natural Resources Defense Council, an environmental group, has said the data center industry is under-regulated and accelerating at a speed, scale and concentration that is impacting energy systems, water supplies, air quality, community health, land use and public finances.

A recent report by the group said state and local policymakers are at the forefront of this expansion, “uniquely positioned to guide it in ways that reflect local priorities and community needs, especially in the absence of federal guidelines.”

A fact sheet from the council said unrestricted buildout of data centers could come with big consequences, including:

• Higher household water and energy bills
• Water scarcity 
• Increased water, air and noise pollution

The motion by Solis quotes a 2026 report by Community & Environmental Defense Services that showed pollutants emitted from data centers may adversely impact the health of individuals living as far as 0.6 miles from the site.

Boender, of the Data Center Coalition, said concerns about data centers have been overstated. In addition, she said data centers have “a lot of positive economic impacts associated with them.” She cited a Pricewaterhouse report that found one job in a data center creates six jobs in the broader economy.

Public comments from the Tuesday meeting

At the Board of Supervisors meeting Tuesday, labor union leaders said new data centers create good middle-class construction jobs.

“These are very big job creators,” said Joe Sullivan of the International Brotherhood of Electrical Workers, Local 11. “Where there are data centers, we’ll have up to 4,000 union construction workers working for up to two years.”

Sullivan urged the board to vote against any moratorium on data centers.

But dozens of other people spoke out against the centers, calling them environmental polluters.

“A moratorium is a crucial first step,” said Vanessa Vasquez of Communities for a Better Environment. She said she supported the board’s effort to gather more information and “explore health protective solutions for potentially impacted community members.”

Support for state legislation

In addition to asking county staff to assess the impact of data centers, the Solis motion calls on the county to support state legislation that directs the Public Utilities Commission to create a special rate structure for large-scale energy users and requires these users to pay for upfront transmission or distribution upgrades.