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A resource guide summarizing vapor investigation standards in the ASTM E1527-13/AAI for Phase I Environmental Site Assessments vs. ASTM E2600-15 – Tier 1 for Vapor Encroachment Assessments. This guide also looks at invasive vs. non invasive vapor investigations.

July 02, 2026
Adrienne Perez, an Environmental Due Diligence Consultant, joins as Technical Director for Agency Services in Partner Engineering and Science's environmental service line.

June 23, 2026
For commercial real estate owners, developers, and investors, the program offers a more flexible and efficient path to address contamination, particularly at lower-priority sites enrolled in voluntary cleanup.

June 24, 2026
Amid evolving and often uncertain federal regulations, state environmental agencies have increasingly taken the lead in developing policies to address PFAS.




