Install permanent water metering for two (2) or more of the following water subsystems, as applicable to the project. Preferably also connect water metering to the BAS.
Irrigation
Meter water systems serving at least 80% of the irrigated landscape area.
Indoor Plumbing Fixtures and Fittings
Meter water systems serving at least 80% of the indoor fixtures and fittings.
Domestic Hot Water
Meter water systems serving at least 80% of the domestic hot water heating capacity (including both tanks and on-demand heaters).
Boilers
Boiler with aggregate projected annual water use of 100,000 gallons or more, or boiler of more than 500,000 BtuH. A single makeup meter may record flows for multiple boilers.
Reclaimed Water
Meter reclaimed water regardless of rate. A reclaimed water system with a makeup water connection shall also be metered so that the true reclaimed water component may be determined.
Other Process Water
Meter at least 80% of expected daily water consumption for process end uses, such as humidification systems, dishwashers, clothes washers, pools, and other subsystems using process water.