What information is required to determine if a project quality for the Green Infrastructure and Buildings Credit. Wastewater Management?

What information is required to determine if a project quality for the Green Infrastructure and Buildings Credit. Wastewater Management?
A . Rainwater reuse rate
B . Cost of installing wastewater system
C . Average amount of annual wastewater generated
D . Ability to connect to existing wastewater infrastructure

View Answer

Answer: C

Explanation:

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.

Reference: 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.