SUSTAINABLE BUILDINGS

Asset Classes

Focus Area

Water

Topic

Benchmarking

Question #

W2.1b – Sub-Metered Data

Question

Is any sub-metered water use available for the most recent 12 months?

Applicability

All asset classes
Tenant occupied building

Answer & Scoring

  • Yes = 3 point
  • No = 0 points
  • Not Applicable – Owner/landlord occupied building OR Tenant occupied building: Pursuing W2.1a = 0/0

Max of 3 points

Requirements

For any sub-metered water data available:

    1. Provide monthly sub-metered water data in table format – see  BOMA BEST Form W1.0b
    2. Provide water sub-meter details, such as make, model, location, photo and year of installation
    3. Indicate whether any water is collected and used on-site and whether that use has been sub-metered
    4. If data is not logged automatically, manual readings need to be taken at least monthly

See Question W1.0b for details of water end-use types

If W2.1a is being pursued the building is not eligible for this point.

Documentation

  • Most recent 12 months of sub-metered water use (total m3)
  • Narrative of data collection methodology and sub-meter data, if available 

OR

  • Narrative indicating that W2.1a is being pursued

Suggested Lead

In-house

Value

  • Sub-metering is an effective way to track water consumption associated with individual water intensive end-uses and tenants
  • Sub-metering data can help building management teams understand how water is being used at the building and identify potential opportunities for water savings
  • Document the building’s sub-metering practices using the BOMA BEST Form – W1.0b

Description

Sub-meters measure the water consumption of specific areas or equipment, providing property owners and managers with the ability to understand where and how the building water is used.

References

None

Adapted BB 3.0 Question

Question 02.04.02 — What percentage of the building’s water consumption is sub-metered?