The DeKalb County Planning Commission on Thursday recommended approval of an zoning code amendment establishing regulations for data centers. The vote was 5-0-1 (one abstention).
During public comments, DeKalb Soil & Water Conservation District Supervisor Jan Dunaway noted that distance requirements between data centers have been removed from the latest draft. She also said the amendment did not address cooling water discharges.
"I do not see anything in here that says I cannot discharge [coolant] into the sewer system or the stormwater system," Dunaway said. "The antifreeze is going to end up in our streams. That is a major concern."
Gina Mangham and Jackie Malcom said the amendment made no consideration for health effects. Mangham said the amendment should not allow the largest data centers. Dale Thompson cited "environmental issues."
DeKalb County Senior Planner Tricia Prevost said the county's watershed management department had suggested the language used in the amendment, including a requirement that data center operators have a sewage plan and disclose effluents in advance.
Prevost said that, without conducting a study, the county could not justify requirements that data centers be a certain distance from other data centers.
"I don't believe that that is feasible," she said. "It would require a level of justification that we are not able to do at this time."
The proposed amendment says new data centers in industrial zoning districts (M or M-2) must be at least 500 feet away from any residentially zoned land parcel. That distance could be reduced to 300 feet if an interstate or state highway or major arterial road borders the property line. Major or campus data centers would have to be more than a half-mile away from any high-capacity transit stop.
"We don't expect to make any major changes before the Board of Commissioners" zoning meeting on November 20, Prevost said.
Planning commissioner Jan Costello made the motion for approval. It was seconded by Ed Patton. Commissioner Winton Cooper abstained from voting. Planning staff had recommended approval of the ordinance.
In an email to consituents earlier in the day, Commissioner Ted Terry said he would ask for deferral of the amendment at the Nov. 20 BOC zoning meeting.
"Unfortunately, due to timing, the previously scheduled Town Hall hosted by Super District 7 Commissioner Bolton and I [sic] has been cancelled. I will advocate for a deferral of the draft regulations item with the hopes a Town Hall can occur that will be primarily for your questions. Your input is critical and your questions deserve to be answered with care and attention," Terry wrote.


