What is a Vapor Encroachment Condition?
What is a Vapor Encroachment Condition?
The ASTM definition of a Vapor Encroachment Concern or “VEC” is “the presence or likely presence of chemical of concern vapors in the subsurface of the target property caused by the release of vapors from contaminated soil and/or groundwater either on or near the target property.”
What is ASTM E1527?
The ASTM E1527-05 Standard is the industry standard used for Phase I Environmental Site Assessments. The standard is reviewed and revised by the ASTM Committee E50 on Environmental Risk Assessment, Risk Management and Corrective Action.
Is Vapor Encroachment a REC?
On June 14, 2010, ASTM published E2600-10, Standard Guide for Vapor Encroachment Screening on Property Involved in Real Estate Transactions. Vapor Intrusion is identified as a Recognized Environmental Condition (REC) in the ASTM E1527-13 Phase I Environmental Site Assessment Standard.
What is the current ASTM standard for Phase I ESA?
E1527-13
The current ASTM standard for a Phase 1 ESA is “E1527-13.” And per a mandatory revision cycle, version E1527-21 proposes modern strategies to assess new and existing human health risks and environmental liabilities.
What is Vapor Encroachment Screening?
Vapor encroachment screening evaluates the potential for future vapor intrusion onto a property, either from an on-site source or from subsurface contamination in the local vicinity. Tier 1 involves identifying sites in the vicinity of the subject site that can be potential sources of vapor.
What is soil vapor intrusion?
Vapor intrusion occurs when chemical vapors migrate from contaminated groundwater through the soil into the basements or foundations of buildings. These chemical vapors can degrade indoor air, sometimes to the point of posing risks to human health.
What is an ASTM Phase I?
In the United States, an environmental site assessment is a report prepared for a real estate holding that identifies potential or existing environmental contamination liabilities. Standards for performing a Phase I site assessment have been promulgated by the US EPA and are based in part on ASTM in Standard E1527-13.
What is an environmental VEC?
A VEC is the presence or likely presence of chemicals that concern vapors in the subsurface caused by the release of vapors from contaminated soil and/or groundwater.
What is a vapor intrusion test?
Vapor intrusion testing is a method of determining if known or suspected ground contamination is a result in these chemical vapors escaping into the building and are they of such concentration that they can cause short term or long term health effects.
How can vapor intrusion be prevented?
Sealing openings involves filling in cracks in the floor slab and gaps around pipes and utility lines found in basement walls. Concrete can be poured over unfinished dirt floors. Installing vapor barriers involves placing sheets of “geomembrane” or strong plastic beneath a building to prevent vapor entry.
What are additional services in ASTM E1527-13?
4.4 Additional Services— As set forth in 12.9, additional services may be contracted for between the user and the environmental professional. Such additional services may include business environmental risk issues not included within the scope of this practice, examples of which are identified in Section 13 under Non-Scope Considerations.
What does the ASTM designation number 1527 mean?
An ASTM designation number identifies a unique version of an ASTM standard. E1527 – 13. E = miscellaneous subjects; 1527 = assigned sequential number. 13 = year of original adoption (or, in the case of revision, the year of last revision)
When is vapor migration included in Phase I ESA?
Consideration of vapor intrusion is required Under ASTM E1527-05 vapor migration and its potential impact to indoor air was excluded from the Phase I scope Definition of “migration” was revised to include migration of vapors, so vapor intrusion is now within the Phase I ESA scope
What does an ASTM designation number stand for?
An ASTM designation number identifies a unique version of an ASTM standard. Active Standard ASTM E1527 | Developed by Subcommittee: E50.02