Water MeasurementMultiunit Structures
Section § 537
This section outlines exemptions and requirements related to water metering for certain types of buildings. Certain structures, like low-income housing, education housing, long-term health care, time-share properties, and residential care facilities for the elderly, are exempt from certain water metering requirements. For individual residential units that do require water submeters, these must be approved and comply with specific regulatory standards.
Section § 537.1
If a new multiunit residential or mixed-use building in California applies for water service after January 1, 2018, the water supplier must ensure water usage is measured for each unit. This can be done with either individual meters or submeters, which are smaller meters that track usage for individual units rather than the whole building. Unless a local law requires individual metering, it's the building owner's job to install and read these submeters unless the water supplier agrees to do it instead. The owner must ensure the submeters comply with all relevant laws, like the California Plumbing Code. Submeter installation must be done by a licensed contractor or a registered service agency. No extra fees should be charged for the submeter installation if done by the owner. This law will remain until building standards are updated to include these requirements.
Section § 537.2
This law states that a building owner cannot be denied a final occupancy permit due to missing water submeters if they can show that the submeters were ordered but delayed by the manufacturer, or are pending approval from a county sealer.
Once the occupancy permit is given, the owner has 120 days to install the submeters once they get county approval.
Section § 537.3
This law says that if a city or local agency had rules about water submeters before January 1, 2013, those rules are still valid. However, no new rules about submeters can be made after that date. The law also ensures that water agencies or local governments can still run programs to encourage water conservation by using submeters, as long as these programs are as strict as this law.
Section § 537.4
This law states that local government agencies shouldn't have to pay for costs related to this article unless they are involved in supplying water.