Environmental Due Diligence

We wrote the book on environmental due diligence.

Environmental due diligence (EDD) refers to the evaluation of potential environmental concerns typically performed prior to a real estate transaction. This can include Phase I Environmental Site Assessments (ESAs), Phase II Site Investigations, or a wide range of other efforts to allow our clients to fully understand issues connected to a Site. We have experience working with a diverse set of discerning clients. This includes custom formats for some of the largest retailers in the world as well as individualized and site-specific approaches for our municipal clients. We are proud to be their trusted partners as they evaluate short-term cost implications, long-term liability, and innovative regulatory strategies to help them address these redevelopment barriers.

EDD will always be a core expertise for Modern Geosciences as our founding Principal, Kenneth Tramm, PhD, PG, CHMM, is a leading authority and the author of the environmental services industry’s go-to reference and college textbook: Environmental Due Diligence: A Professional Handbook.

Featured Environmental Due Diligence Services


  • Process Inspections

    When potential process or operational concerns are warranted, Modern Geosciences in providing thorough and effective Process Inspections that identify key environmental changes, mitigate potential impact and drive strategic remediation solutions. […]

  • Phase II Site Investigations

    Modern Geosciences has extensive experience designing and implementing on-site Phase II site investigations to confirm, locate and identify recognized environmental conditions (RECs) or concerns. […]

  • Phase I ESA

    The Phase I ESA standard represents the most common tool for environmental due diligence. However, no two sites are the same. While many firms offer this service, Modern Geosciences has a highly trained staff that is often called on for the most complex and challenging properties […]

  • Landfill Evaluations

    We understand that routine maintenance and monitoring is a constant concern for landfill operators. Routine landfill evaluations can help operators mitigate their environmental risks. […]

  • Incremental Sampling Design

    For larger projects where individual sampling of discrete points can lead to diminishing returns and exhaustive costs, Modern Geosciencs has worked with ways to represent large areas or volumes using incremental sampling design methods to ensure you understand site conditions. These efforts are often employed when real-time field decisions are needed to help keep a project schedule as short as possible. […]