In a project that includes an addition to an existing facility, what is true about metering water use to comply with Building Water Metering?

The correct answer is that a single meter covering both the old and new portions of the building may be installed. This approach is often acceptable because it simplifies monitoring and provides a comprehensive view of the water usage for the entire facility, including both the existing structure and the new addition.

By having a single meter, the project can still meet the requirements for building water metering as outlined in the LEED criteria. Metering is essential for tracking water consumption and identifying opportunities for water conservation, regardless of whether the building is composed of older structures, newer additions, or both.

This option reflects an understanding of the LEED certification process, which encourages efficiency and effective resource management. While separate metering might provide more detailed data about each section of the building, it is not a necessity according to the LEED guidelines, leading to the acceptance of a single, comprehensive meter for the entire facility.