CI-v5 WEc1: Water Metering and Leak Detection 1-2 points
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
To conserve potable water resources, support water management, limit potential material waste due to water leak damage, and identify opportunities for additional water savings by tracking water consumption.
Requirements
Option 1. Meters (1 point)
Install (or use existing) permanent water meters or submeters that measure the total water consumption for each water source for the tenant space that meet the following requirements:
- The tenant must be able to access the meter data.
- Meter alternative water sources separately from municipally supplied potable water.
- Commit to sharing with USGBC the resulting tenant space water usage data at least annually. This commitment must carry forward for five years or until the building changes ownership or lessee.
AND/OR
Option 2. Submeters (1 point)
Install permanent water submeters for each applicable subsystem defined below:
- Indoor plumbing fixtures and fittings with meter systems serving at least 80% of indoor fixtures and fittings as described in WEp1: Minimum Water Efficiency and fixtures and fittings not addressed in the prerequisite, including janitor sinks, water coolers, and bottle fillers, which may be included or excluded from the measured total water consumption of the tenant space at the project team’s discretion.
- Commercial kitchen (if the kitchen serves at least 100 meals per day of operation).
- Laundry (if the project includes commercial laundry equipment that processes at least 120,000 lb [57,606 kg] of laundry per year or if the project includes a public laundry room).
The tenant must be able to access the submeter data in real time via local network, building management system (BMS), cloud service, app, or online database. All submeters must be capable of recording data at least hourly.
AND/OR
Option 3. Leak Detection Sensors (1 point)
Install permanent water flow meter/sensors for at least 50% of the project flush fixtures in the tenant space; water sensors can be installed on each flush fixture or for a group of flush fixtures (e.g., one per restroom facility).
The leak detection system should be able to identify a leak triggered by abnormal flow rate above normal range, or physically detect a water leak and initiate an alarm upon a leak detection.
The tenant must be able to access the sensor data in real time via local network, BMS, cloud service, app, or online database.
Develop an action plan that addresses how the tenant will have access to data in real time and how the tenant will address and remedy any detected leak.
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
To conserve potable water resources, support water management, limit potential material waste due to water leak damage, and identify opportunities for additional water savings by tracking water consumption.
Requirements
Option 1. Meters (1 point)
Install (or use existing) permanent water meters or submeters that measure the total water consumption for each water source for the tenant space that meet the following requirements:
- The tenant must be able to access the meter data.
- Meter alternative water sources separately from municipally supplied potable water.
- Commit to sharing with USGBC the resulting tenant space water usage data at least annually. This commitment must carry forward for five years or until the building changes ownership or lessee.
AND/OR
Option 2. Submeters (1 point)
Install permanent water submeters for each applicable subsystem defined below:
- Indoor plumbing fixtures and fittings with meter systems serving at least 80% of indoor fixtures and fittings as described in WEp1: Minimum Water Efficiency and fixtures and fittings not addressed in the prerequisite, including janitor sinks, water coolers, and bottle fillers, which may be included or excluded from the measured total water consumption of the tenant space at the project team’s discretion.
- Commercial kitchen (if the kitchen serves at least 100 meals per day of operation).
- Laundry (if the project includes commercial laundry equipment that processes at least 120,000 lb [57,606 kg] of laundry per year or if the project includes a public laundry room).
The tenant must be able to access the submeter data in real time via local network, building management system (BMS), cloud service, app, or online database. All submeters must be capable of recording data at least hourly.
AND/OR
Option 3. Leak Detection Sensors (1 point)
Install permanent water flow meter/sensors for at least 50% of the project flush fixtures in the tenant space; water sensors can be installed on each flush fixture or for a group of flush fixtures (e.g., one per restroom facility).
The leak detection system should be able to identify a leak triggered by abnormal flow rate above normal range, or physically detect a water leak and initiate an alarm upon a leak detection.
The tenant must be able to access the sensor data in real time via local network, BMS, cloud service, app, or online database.
Develop an action plan that addresses how the tenant will have access to data in real time and how the tenant will address and remedy any detected leak.
See all forum discussions about this credit »