Pima County eyes data center rules on water, noise
Pima County is developing new zoning regulations for data centers, covering water, energy, and noise, following a recently enacted 20-day moratorium. These proposed rules require closed-loop cooling and buffer yards, with a county supervisor expressing opposition to data centers.
Pima County is moving to establish specific zoning regulations for data centers, focusing on water usage, energy supply, and noise levels. This initiative follows a recent 20-day moratorium on new data center developments approved by the Pima County Board of Supervisors. An open house was held to discuss these proposed rules, which aim to define data centers and mandate "common sense regulations."
Key components of the draft rules include a requirement for closed-loop water cooling, ensuring water recirculation and reuse. Data center projects would also need to demonstrate certified access to adequate water and energy supplies. Additionally, the county is exploring buffer yard requirements, proposing at least 200-foot buffers with vegetation and landscaping when data centers are adjacent to residential or mixed-use areas.
Pima County Supervisor Jennifer Allen voiced her personal opposition to data centers in the community but acknowledged the necessity of having specific regulations in place. The proposed rules also suggest capping noise levels at 55 decibels at property lines for projects near residential areas, comparable to an electric toothbrush's volume.
These regulations are scheduled to be presented to the county's planning and zoning commission in late October. The commission will then decide whether to recommend the rules to the Board of Supervisors for final approval.