To support water efficiency by tracking and reporting building water use over time.
意图
通过长期跟踪和报告建筑用水来支持水资源效率。
Requirements
Install permanent water meters for the building and all major water-consuming systems. Commit to sharing water consumption data with USGBC for a period of at least 5 years. Data must be reported at least monthly. Include metering for: whole-building water use, irrigation systems, cooling towers, and domestic hot water.
To reduce indoor, outdoor, and process water use beyond baseline standards to lessen the burden on municipal water supply and wastewater systems.
意图
在基线标准之上减少室内、室外和工艺用水，以减轻市政供水和废水系统的负担。
Requirements
Achieve a reduction in total water use compared to the baseline. The baseline is calculated according to the applicable codes and standards for each water use category. Measure total water consumption over the performance period. Calculate the percentage reduction from baseline.
To support water management through submetering of major water-consuming subsystems.
意图
通过对主要耗水子系统进行分项计量来支持用水管理。
Requirements
Install permanent submeters for at least 2 of the following water-consuming subsystems: irrigation, domestic hot water, cooling tower makeup, process water, reclaimed water, or other subsystems using at least 10% of total building water. Commit to tracking and reporting submeter data for at least 5 years. Integrate submeter data into building management system for leak detection and anomaly alerts.