Phase 1 Site Assessment
An essential step in property transactions and development is evaluation of the
property for potential or actual Recognized Environmental Conditions, and assessment
of potential environmental liability that may result from current or historical
land uses. This process is commonly known as environmental due diligence or
environmental site assessment.
A Phase I Environmental Site Assessment (ESA) is a report prepared for a real
estate holding which identifies potential historical or existing Recognized Environmental
Conditions and any associated liabilities. The analysis, commonly referred to
as a Phase I ESA, typically addresses both the underlying land as well as physical
improvements to the property. Techniques applied in a Phase I ESA never include
actual collection of physical samples or chemical analyses, but may include: |
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A site reconnaissance performed to evaluate the actual
condition of the subject property and general site
vicinity |
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Interviews with immediate and adjacent property owners |
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Identification/definition of any chemical residues
within or around
current or
former structures |
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Identification of possible asbestos containing building
materials |
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Inventory of hazardous substances or materials stored
or used on site
either
currently or historically |
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Assessment of mold and mildew |
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Evaluation of other indoor air quality parameters. |
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The Phase I ESA is generally considered the first step
in the process of environmental Due Diligence. This type
of study is alternatively called a Level I Environmental
Site Assessment. Standards for performing a Phase I site
assessment have been promulgated by the US EPA and have
been established by the American Society of Testing and
Materials (ASTM), identified as ASTM E1527-00 and 1527-05.
If a site is considered to be potentially contaminated
as a result of either current or historical land uses either
on or off site, a Phase II Environmental Site Assessment
may be conducted, ASTM test E1903, a more detailed investigation
involving chemical analysis for hazardous substances and/or
petroleum hydrocarbons.
We provide 40 CFR 312, ASTM-E1527 and similar Phase I Environmental Site Assessments.
Typical elements include: |
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Site history, based on personal interviews, review
of aerial photographs, topographical maps, and other
historical records research. |
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Site reconnaissance, to identify any potential environmental
impact or visible signs of hazardous substances releases
or contamination. |
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Regulatory compliance and data base review. |
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Optional services, such as asbestos, lead paint,
radon assessments, and identification of potential
wetland areas. |
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