Which project types require an Environmental Site Assessment as a prerequisite?

The requirement for an Environmental Site Assessment (ESA) is primarily to identify potential environmental contamination on a site before any development occurs. This is crucial for ensuring that the intended use of the site does not pose health risks or liabilities related to hazardous materials.

Schools and healthcare facilities are particularly sensitive project types due to their critical missions involving children's education and community health. The environmental safety of these spaces is paramount, as any contamination could directly impact vulnerable populations. The ESA ensures that potential environmental issues are identified and addressed before construction begins, thus protecting both the future occupants and the surrounding community.

In the context of the LEED v4 rating system, this prerequisite is essential for both schools and healthcare projects. They share the responsibility to provide safe and healthy environments, which necessitates a thorough investigation of the site’s environmental history and conditions.

Other project types, while they may have their own environmental considerations, do not have the same level of obligation for an ESA as schools and healthcare facilities do, making this choice the most appropriate in the context provided.