Environmental Site Assessment (Environmental Due Diligence)

Are you planning or advising/negotiating on a transaction or proposing to invest in a business?
Do you need independent evaluation of the site under consideration for identification of potential financial and commercial implications of environmental, health & safety and social (EHS&S / EHS Compliance) risks and liabilities associated with the deal, if any, to assist your investment decision?

These issues can have material impacts on the operating performance, value and reputation of a company, and impact the value of your investment. Get the Environmental Site Assessment / Due Diligence / Enviro-legal Audit / Environmental Impact Assessment done by experts anywhere in the world. You may benefit through our rapid response to identify environmental issues and their commercial implications. Many multinational companies have benefited from us.

We have a team of experienced chemical and civil engineers, geologists and chemists for taking up the ESA projects. We also have the following instruments to help us in carrying out the ESAs:

  • GPS receivers
  • Hand Augers (rotary drilling equipment is available with our regular contractors)
  • Bailers for groundwater sampling
We also have a sophisticated, NABL accredited in-house laboratory for testing of soil and water samples.

We use the following ASTM standards for guidance for our ESA projects:

  • ASTM E1528 Standard Practice for ESAs: Transaction Screen Process
  • ASTM E1527 Standard Practice for ESAs: Phase I ESA Process
  • ASTM E1903 Standard Practice for ESAs: Phase II ESA Process

Our clients include Multinational Corporations (MNCs), Large Public Sector Undertakings (PSUs), Regulatory Agencies / Institutions and Large Indian Private Sector Companies.


Environmental Site Assessment (ESA) / Environmental Due Diligence (EDD):
ESA or EDD is the process of inquiring into environmental characteristics or other relevant conditions of a parcel of commercial real estate, usually in connection with a commercial estate transaction. The degree and kind of ESA / EDD may vary for different properties and differing purposes.

PHASE I ESA PROCESS: The purpose of the Phase IESA is:
  • To identify, to the extent feasible, recognised environmental conditions in connection to the property
  • Identify and assess any major environmental risks associated with the previous and current use of the site
  • Determine those aspects of the previous use or current operation of the site where there may be impending or potential liabilities associated with environmental issues, providing estimates of the associated  costs where possible
  • Recommend further studies where the extent of liability need to be clarified
The Phase I ESA has four components:
  • Records review
  • Site reconnaissance
  • Interviews
  • Reports

PHASE II ESA PROCESS: The objective the Phase II ESA is:

  • To evaluate the recognised environmental condition identified in the Phase I ESA or Transaction Screen Process
  • Develop sufficient information from which the environmental professional can reasonably render a professional opinion that with respect to recognised environmental conditions, recognized hazardous substances have not been disposed or released at the property
  • Develop sufficient information about the presence of a recognised environmental condition at a site to meet the business objectives of the user and to provide sufficient data to assist the user in making informed business decisions or both
The Phase II ESA has five components:
  • Identifying which component of the environment (air, water, soil etc.) needs to be tested
  • Identifying locations and number of samples to be collected
  • Testing the samples for identified contaminants
  • Interpreting the test results and recommending characterisation of contamination where necessary
  • Reports

A Phase III ESA is necessary when contamination has been confirmed by the Phase II ESA. The purpose of Phase III is

  • To fully characterize and assess the nature (i.e. types) and extent (i.e. magnitude or distribution) of site contamination
  • To identify appropriate clean-up technologies based on the nature and extent of contamination, potential clean-up goals, technology application, and cost

Typically phase III activities include :

  • Evaluating prior ESA reports to develop a site characterization – sampling strategy
  • Performing more extensive sampling to assess the full extent of contamination
  • Evaluating the contamination risk in relation to future site use
  • Evaluating the technological viability and cost of clean-up alternatives
  • Reports