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.
We welcome and value the opinions of our green building community. We are collecting feedback on LEED v4 during the 5th open commenting period. At this time, each USGBC site user may comment on the open credits.