Cooling tower water management | U.S. Green Building Council
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LEED O+M: Existing Buildings | v3 - LEED 2009

Cooling tower water management

WEc4 | Possible 2 points

Recertification Guidance

Projects should refer to the following credit compliance guidance when planning for recertification. The table outlines the establishment and performance requirements and details the preferred frequency and duration of each performance requirement. Recertification is based on compliance with performance requirements. For the complete set of guidance, refer to the LEED for Existing Buildings: Operations & Maintenance Recertification Guidance.

Credit Establishment requirements Performance requirements
WEc4.1: Cooling tower water management—chemical management Policy
Establish and implement water management plan for cooling towers.
WEc4.2: Cooling tower water management—non-potable source N/A Ongoing tracking
Use makeup water that consists of at least 50% nonpotable water and have in place measurement program that verifies makeup water quantities. Provide meter readings from most recent 25% of recertification performance period.