Latah County proposes strict water and noise limits for data centers

The Latah County Planning Commission is developing a draft ordinance to regulate the establishment of data centers on county land. The proposed rules aim to mitigate the environmental and community impacts associated with the rapid growth of cloud computing and AI infrastructure.

Under the draft proposal, the consumptive use of groundwater for routine cooling operations is strictly prohibited. Groundwater use would be limited to non-consumptive, domestic, sanitary, and life-safety purposes, such as fire suppression. To ensure compliance, applicants must submit a comprehensive water management plan alongside an electrical impact study and an energy efficiency plan. Once operational, facilities would be required to file annual reports detailing their peak demand and total electrical consumption.

Protecting Rural Landscapes

The ordinance introduces rigorous spatial and acoustic barriers to prevent the industrialization of rural areas. Proposed setback requirements mandate that data centers be located at least 500 feet from suburban, rural residential, or agricultural zones. Furthermore, a 1,000-foot setback is required from any existing residences not owned by the applicant. To address noise pollution, the county proposes a limit of 45 decibels, requiring developers to provide a formal compliance plan authored by a certified acoustical engineer.

Resource Preservation

These measures are a direct response to the resource-intensive nature of modern data centers, which often require massive amounts of electricity and water for cooling. By restricting groundwater consumption, the county is prioritizing the protection of the Palouse Basin aquifer. "Our job is to protect what we have," said Planning Commission member Tom Moore, according to the Lewiston Tribune.

This local effort reflects a broader tension between the economic drive for tech expansion and the preservation of critical natural resources. By establishing these thresholds, Latah County is signaling that residential quality of life and aquifer stability take precedence over the rapid deployment of high-demand industrial tech.

Next Steps

The Planning Commission has scheduled a public hearing for September 1 to discuss the draft ordinance. While the proposal aligns with local officials' goals of following state-level directions regarding groundwater consumption, the final version of the rules will depend on the outcome of the public comment period and subsequent commission votes.