Uses8212;This practice is intended for use on a voluntary basis by parties who wish to conduct a VIA on a parcel of real estate, or more specifically conduct a screening evaluation to determine whether or not there is potential for a VIC, and if so, identify alternatives for further investigation. To determine whether the vapor intrusion exposure pathway is complete and, if so, whether it poses or may pose an unacceptable risk to human health (that is, whether a VIC exists), this practice directs the user and environmental professional to existing federal or state vapor intrusion policy, regulation and guidance (refer to Appendix X5 and Appendix X9). The process defined in this practice begins with a reasonably conservative screening process that requires information generally collected as part of a Practice E 1527 Phase I ESA. If a pVIC is identified in this initial screening, the process gradually progresses toward a more complex assessment involving increasingly greater use of site-specific data. For those sites unable to be screened out, the process provides alternative methods to determine whether a VIC exists. If a VIC is found to exist, the process describes general mitigation alternatives. This practice is intended primarily as an approach to conducting an inquiry designed to identify pVICs or VICs in connection with a property involved in a real estate transaction. This practice is intended to reflect a commercially practical and reasonable inquiry (see 1.2). The practice can be applied to property with existing structures, property with structures that will be substantially rehabilitated, property without existing structures but having planned structures (for example, property in development), or property without existing structures and with no planned structures (for example, undeveloped property with no planned development).
Clarifications on Use:
Use in Conjunction with Practice E 1527 Phase I ESA8212;This practice, when added as a supplemental scope of work to a Practice E 1527 Phase I ESA, is designed to assist the user and environmental professional in developing information about pVICs or VICs associated with a target property and, as such, has utility for a wide range of persons, including those who may not be involved in a real estate transaction.
Independent Use8212;This practice may also be used independently of any other property environmental assessment to determine if a pVIC or VIC exists. However, prior to use the user and environmental professional should be familiar with the data collection requirements associated with a Practice E 1527 Phase I ESA that are referenced in this practice (see 5.3).
Site-Specific8212;This practice is property-specific in that it relates to assessment of pVICs or VICs