For over one hundred years, city directories have been published in the United States, providing
a valuable record of any occupants indicative of past uses and potential environmental issues.
These important historical sources are used by environmental professionals to evaluate potential
risks resulting from past activities and comply with ASTM E1527-13 Standard Practice for
Phase I Environmental Site Assessments.
Here are three reasons why thousands of environmental professionals rely on our digital City Directory reports to complete their Phase I Environmental Site Assessments: