Phase I Environmental Site Assessment
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A Phase I Environmental Site Assessment is a report prepared for a real estate holding which identifies specific environmental contamination liabilities. The analysis, often called a Phase I ESA, typically addresses both the underlying land as well as physical improvements to the property; however, techniques applied in a Phase I ESA never include actual collection of physical samples or chemical analyses of any kind. Scrutiny of the land includes examination of potential soil contamination, groundwater quality, surface water quality and sometimes issues related to toxic uptake by biota. The examination of a site may include: definition of any chemical residues within structures; identification of possible asbestos containing building materials; inventory of toxic substances stored or used on site; assessment of mold and mildew; and evaluation of other indoor air quality parameters[1]. 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 ASTM in Standard E1527-05.
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[edit] History
As early as the 1970s specific property purchasers in the USA undertook studies resembling current Phase I ESAs, to assess risks of ownership of commercial properties which had a high degree of risk from prior toxic chemical use or disposal. Many times these studies were preparatory to understanding the nature of cleanup costs if the property was being considered for redevelopment or change of land use.
In the United States of America demand increased dramatically for this type of study in the 1980s following judicial decisions related to liability of property owners to effect site cleanup. Interpreting the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA), the U.S. courts have held that a buyer or lender may be held responsible for remediation of toxic residues, even if a prior owner caused the contamination; performance of a Phase I Environmental Site Assessment, according to the courts’ reasoning, creates a safe harbor for such a new purchaser or his lenders.
In 1998 the necessity of performing a Phase I ESA was underscored by congressional action in passing the Superfund Cleanup Acceleration Act of 1998[2]. This act requires purchasors of commercial property to perform a Phase I study meeting the specific standard of ASTM E1527-05. Residential property purchasers need only conduct a site inspection and chain of title survey.
[edit] Actions triggering the Phase I ESA
A variety of actions[3] can cause a Phase I study to be performed for a commercial property, the most common being:
- Purchase of real property by a person or entity not previously on title.
- Contemplation by a new lender to provide a loan on the subject real estate.
- Partnership buyout or principal redistribution of ownership.
- Application to a public agency for change of use or other discretionary land use permit.
- Existing property owner’s desire to understand toxic history of the property.
- Compulsion by a regulatory agency who suspects toxic conditions on the site.
[edit] Scope of the Phase I ESA
Depending upon precise protocols utilized, there are a number of variations in the scope of a Phase I study. The tasks listed here are extremely common to almost all Phase I ESAs:
- Performance of an on-site visit to view present conditions (asbestos containing materials, mold, chemical spill residue, die-back of vegetation, etc) ; toxic materials usage (presence of above ground or underground storage tanks, storage of acids, etc.); and evaluate any likely toxic site history.
- Evaluation of risks of neighbouring properties upon the subject property
- Interview of persons knowledgeable regarding the property history (past owners, present tenants, neighbours).
- Examine municipal or county planning files to check prior land usage and permits granted
- Conduct file searches with public agencies (State water board, fire department, county health department, etc) having oversight relative to water quality and soil contamination issues.
- Examine historic aerial photography of the vicinity.
- Examine current USGS maps to scrutinize drainage patterns and topography.
- Examine chain-of-title.
[edit] Preparers
Often a multi-disciplinary approach is taken in compiling all the components of a Phase I study, since skills in chemistry, atmospheric physics, geology, microbiology and even botany are frequently required. Many of the preparers are environmental scientists who have been trained to integrate these diverse disciplines. Many states have professional registrations which are applicable to the preparers of Phase I ESAs; for example, the state of California has a registration entitled Registered Environmental Assessor. Most site assessments are conducted by private companies independent of the owner or potential purchaser of the land.
[edit] Examples
While there are a myriad of sites that have been analyzed to date within the United States, the following list will serve as examples of the subject matter:
- Auke Bay U.S. Postal Facility, Juneau, Alaska
- Esso Canada Ltd. Former Bulk Fuels Facility, Owen Sound, Ontario, Canada
- Dakin Building, Brisbane, California
- East Elk Grove Specific Plan, Elk Grove, California
- Mariners Marsh Park, Staten Island, New York
- Richmond State Hospital Farm Industrial Park, Wayne County, Indiana
- Sydney Steel Plant Lands, Sydney, Nova Scotia
- Weyerhauser Technology Center, Federal Way, Washington
[edit] International context
In Japan, with the passage of the 2002 Soil Contamination Countermeasures Law, there is a strong movement to conduct Phase I studies more routinely. At least one jurisdiction in Canada (Ontario) now requires the completion of a Phase I prior to the transfer of some types of industrial properties. Some parts of Europe began to conduct Phase I studies on selected properties in the 1990s, but still lack the comprehensive attention given to virtually all major real estate transactions in the USA.
[edit] Other types of ESA
There are several other report types that have some resemblance in name or degree of detail to the Phase I Environmental Site Assessment:
Phase II Environmental Site Assessment is an investigation which collects original samples of soil, groundwater or building materials to analyze for quantitative values of various contaminants[4]. This investigation is normally undertaken when a Phase I ESA determines a likelihood of site contamination. The most frequent substances tested are petroleum hydrocarbons, heavy metals, pesticides, solvents, asbestos and mold.
Phase III Environmental Site Assessment is an investigation involving toxic remediation of a site. This study normally involves assessment of alternative cleanup methods, costs and logistics. The associated reportage details the steps taken to perform site cleanup and the follow-up monitoring for residual contaminants.
Limited Phase I Environmental Site Assessment is a truncated Phase I ESA, normally omitting one or more work segments such as the site visit or certain of the file searches. When the field visit component is deleted the study is sometimes called a Transaction Screen.
Environmental Assessment has little to do with the subject of toxic liability, but rather is a study preliminary to an Environmental Impact Statement, which identifies enviornmental impacts of a land development action and analyzes a broad set of parameters including biodiversity, environmental noise, water pollution, air pollution, traffic, geotechnical risks, visual impacts, public safety issues and also toxic issues.
[edit] See also
[edit] References
- ^ Martin N. Sara, Site Assessment and Remediation Handbook, CRC Press (2003)
- ^ Superfund Cleanup Acceleration Act of 1998, U.S. Congress, March 26, 1998
- ^ Thomas M Missimer and Missimer M Missimer, A Lender's Guide to Environmental Liability Management CRC Press (1996)
- ^ Environmental Aspects of Real Estate and Commercial Transactions: From Brownfields to Green Buildings, American Bar Association, ed. by James B. Witkin (2002)
