LEED AP with Operations and Maintenance (O+M ) Practice Exam

Which category concerns the efficient use of water in a LEED project?

1. Energy and Atmosphere

2. Water Efficiency

3. Materials and Resources

4. Indoor Environmental Quality

The correct answer is: Water Efficiency

The category that concerns the efficient use of water in a LEED project is indeed Water Efficiency. This category focuses on promoting water conservation in buildings and landscapes, thus minimizing the impact on local water supplies and ecosystems. It encompasses strategies for reducing indoor and outdoor water usage, including efficient fixtures and fittings, smart irrigation systems, and the use of recycled water when feasible. By targeting measures to conserve water, this category helps not only in lowering water consumption and costs but also contributes to the sustainability of the environment by protecting waterways and reducing the energy required for water heating and transport. The other categories, while essential to a comprehensive understanding of LEED certification, focus on different aspects of building performance. Energy and Atmosphere concentrate on energy consumption and efficiency, Materials and Resources deal with sustainable sourcing and recycling of building materials, and Indoor Environmental Quality emphasizes indoor health conditions and occupant comfort. Each category plays an integral role in overall building sustainability, but Water Efficiency specifically addresses water use.