ESS pioneered Phase I Environmental Site Assessments (ESA)
beginning in 1988. ESS developing a Phase 1 scope of work
for large corporate clients and financial institutions.
Database inquiries were requested directly from the EPA and an
encrypted Fortran printout was delivered. ESS interpreted
the coding and presented the relevant information in table
format and ultimately generated the first graphical radius site
maps prepared by hand. The Resolution
Trust Corporation (RTC) and SAMDA contractors became involved
with these properties and adopted this scope of work. This scope
became the early Phase 1 Standard and was circulated nationwide.
It was later modified by RTC to satisfy additional National
Environmental Policy Act (NEPA) requirements.
The American Society for Testing
Standards (ASTM) Standards committee developed a scope pairing
back the RTC scope. The ASTM Standard E1527-97, now revised to E1527-13, defines a generally accepted
scope balanced to satisfy financial and CERCLA liability concerns
by conducting "all appropriate inquiries".
The EPA adopted
the ASTM standards as their interim standard which became
effective January 11, 2002. November 1, 2005 Congress
established the EPA's final rule (40
CFR Part 312) as the Standards and Practices for All
Appropriate Inquiries; Final Rule. This rule became
effective November 6, 2006
is prepared to conduct Site Assessments from Property Transfers
to Corporate Campus or Facility site selection.