855773520-LEED-v5-ID-C-Reference-Guide-Launch-Edition-1 - Page 090

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design phase allows for design optimizations including, but not limited to, meter placement, water heater or boiler room locations, and distribution piping design.

Projects can achieve up to two points by combining a minimum of two of the three options. o

Option 1. Meters

Option 1 requires that projects install meters or utilize existing meters to collect water consumption data (gallons or liters) from all water sources within the tenant space. This includes potable and alternative water. Teams must report total project water consumption to USGBC at minimum annually. The data must also be accessible to the tenant and/or other appropriate person(s).

Tracking and reviewing data monthly allow tenants an ongoing opportunity to identify inefficiencies or anomalies in consumption. The data review also immediately addresses problems, such as leaks and failed valves, before larger issues or excess consumption occur.

Identifying all water sources and water end uses Project teams must identify all water end uses in the tenant spaces and analyze water consumption from each source. Common water sources include plumbing fixtures, cooling towers, laundry facilities, dishwashers, indoor water features, and other building processes.

Identify the water source for each end use. Potable water sources include public water supply, on-site wells, and on-site potable water treatment systems. Alternative water sources include greywater, rainwater, recycled water, and reclaimed water. Alternative water sources must be metered separately from municipally supplied potable water.

Meters and types of meters Install meters only for systems within the scope of work. Specify permanent meter(s) that provide water consumption data in gallons or liters. A utility-owned meter that provides the required data meets the prerequisite requirements. Utility providers often read and bill total water consumption monthly.

Tracking and reporting Demonstrate that the key person(s) responsible for tracking and reporting water consumption data can access the meter. If the location is inaccessible, providing access to monthly utility bill(s) achieves the same goal. If projects cannot demonstrate access through direct, visual readings or monthly utility bills, teams must install additional meter(s) to meet the prerequisite.

U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 79