Phase I Environmental Site Assessments

Ember Environmental is based out of Chicago, IL and offers Phase I ESAs to Chicago and the Midwest. Phase I Environmental Site Assessments (Phase I ESA) are a common part of industrial and commercial property sales. These real estate transactions often contain a “Due Diligence” period where Phase I Site Assessments and Property Condition Assessments (PCA) become necessary. These assessments can provide valuable information for the lender or prospective property owner before closing. A properly done Phase I ESA that follows ASTM standards can save a buyer time and money by warning of potential environmental problems and liabilities before it is too late.

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What does a Phase I ESA consist of?

Historical Research

Ember reviews historical resources such as fire insurance maps, city directories, and aerial photos to ascertain past uses of the property.

Regulatory Review

Local, state, and federal regulatory databases and records are reviewed for current or past environmental issues regarding the property and surrounding area.

Site Reconnaissance

A site visit is made to inspect the property for indications of contamination, spills, or other environmental concerns.


Ember may interview current owners, property managers, occupants and tenants, government officials, and the prospective buyer for knowledge of the property.


A Phase I ESA report following ASTM E1527-13 is prepared with the appropriate information gathered from the Phase I Environmental Site Assessment process.

For more in-depth information feel free to check out our page on what a Phase 1 Environmental is and why you need one. You can also contact us at info@emberenviro.comĀ with any questions or to get a Phase I ESA quote!