“Closed loop” usually describes a fluid circuit that recirculates. It does not, by itself, tell the community how the captured heat ultimately leaves the facility.
The loop and heat rejection are different questions
A closed building loop may send heat to dry coolers, cooling towers, hybrid equipment, or another heat-rejection system. Dry systems can sharply reduce routine water consumption but may require more energy or operate differently during extreme weather. Evaporative systems can be efficient in other ways while consuming water through evaporation and blowdown.
What should a community request?
Ask for a system diagram, equipment names, operating modes, annual and peak-day water estimates, the water source, water-quality requirements, chemical-management plan, and what changes during hot weather or equipment failure.
Ask whether the facility uses closed-loop heat transport, evaporative heat rejection, dry cooling, hybrid operation, direct liquid cooling, or a combination—and request water figures for each mode.