Obtain documentation confirming that your project building was contaminated and that remediation was completed. Ask building management to provide an ASTM E1903-97, Phase II Environmental Site Assessment and proof of remediation. However, such documentati

Obtain documentation confirming that your project building was contaminated and that remediation was completed. Ask building management to provide an ASTM E1903-97, Phase II Environmental Site Assessment and proof of remediation. However, such documentation is not common and may be hard to find if remediation was well in the past. Alternatively, you can provide proof that the building was developed on a brownfield site, as determined by a local, state, or federal government agency via a letter or other formal confirmation.