Most Recent US Green Building Council LEED-AP-ND Exam Questions & Answers

To determine if a project qualifies for the Green Infrastructure and Buildings Credit related to Wastewater Management in LEED for Neighborhood Development (LEED-ND), the most relevant piece of information is the average amount of annual wastewater generated by the project. This metric is essential because the credit focuses on minimizing the impact of wastewater on the environment, primarily through strategies such as reducing the volume of wastewater produced, treating wastewater on-site, and reusing treated wastewater.

Detailed Explanation:

Wastewater Generation and Management: The LEED-ND rating system encourages the efficient management of wastewater to minimize its environmental impact. Specifically, the Green Infrastructure and Buildings Credit requires that a project demonstrates effective strategies for managing and reducing the volume of wastewater generated annually. This involves calculating the total average amount of wastewater generated by the community and assessing how much of it can be treated and reused on-site.

Credit Requirements: To earn the Wastewater Management credit, projects must typically show that they have reduced the amount of wastewater generated by at least 25% compared to baseline conditions or that they treat and reuse a significant portion of their wastewater on-site. This necessitates an accurate estimation of the average annual wastewater production to determine the appropriate strategies and technologies for meeting the credit's objectives.

Supporting Strategies: Projects may employ various methods to achieve this, including installing efficient plumbing fixtures, recycling graywater, using natural treatment systems (like constructed wetlands), or connecting to high-efficiency municipal treatment facilities. However, all these strategies hinge on an understanding of the total wastewater volume generated, making this the most critical data point.

The LEED Reference Guide for Neighborhood Development (LEED ND) provides comprehensive criteria and methodologies for calculating the average wastewater generation and determining credit eligibility.

The Green Infrastructure and Buildings section of the LEED v4 for Neighborhood Development rating system further outlines the specific requirements and point allocations for wastewater management strategies.

For more detailed guidance and examples, refer to the LEED-ND Reference Guide available at the USGBC's resources section:

LEED Reference Guide for Neighborhood Development

LEED v4 Neighborhood Development

This detailed assessment is crucial in ensuring that a project can meet the sustainability goals required for LEED certification under the Green Infrastructure and Buildings Credit for Wastewater Management.

To make the 400-acre (161-hectare) site eligible for LEED for Neighborhood Development certification, rezoning the project for higher density is a critical initial step. LEED for Neighborhood Development promotes higher-density development as a way to reduce land consumption, preserve open space, and create more sustainable, walkable communities. The current zoning of two dwelling units per acre (five DU/hectare) may be too low to meet the prerequisites or credit requirements for density in LEED ND. By increasing the density through rezoning, the developer can better align the project with LEED ND goals and increase the likelihood of achieving certification.

In this scenario, where 106,240 ft (9,870 m) of the project buildings are oriented for maximum solar orientation, the project is eligible for the Green Infrastructure and Buildings Credit for Solar Orientation. This credit is awarded to projects that are designed to maximize solar access, thereby reducing energy demand through passive solar heating and daylighting. The fact that a significant portion of the project is within proximity to diverse uses does not align directly with the solar orientation credit, but it is relevant to other credits like Mixed-Use Neighborhoods or Walkable Streets. However, the focus on building orientation for solar access makes the Solar Orientation credit the most appropriate choice.

To meet the Neighborhood Pattern and Design Credit for Transit Facilities, it is required to display transit schedules and route information at each public transit stop. This requirement ensures that transit users have access to up-to-date and accurate information, making public transportation more accessible and user-friendly, which supports increased transit use and reduces reliance on private vehicles. The other options, such as providing park and ride lots or intersection connectivity, while beneficial, do not directly address the requirements of this specific credit.