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OVERVIEW OF STATE APPROACHES TO VAPOR INTRUSION: 2023 UPDATE
Eklund, B., C. Regan, R. Rago, and L. Beckley.
Groundwater Monitoring & Remediation 44(3):76-93(2024)
Filed Under: General News
Filed Under: General News
This paper summarizes current vapor intrusion (VI) guidance, petroleum hydrocarbon-specific VI guidance, and/or media-specific volatilization criteria in broader regulatory programs. Since 2018, 30 states have revised their guidance, issued new guidance or updated criteria or other VI-related information. For each state and the District of Columbia, the review includes tabulations of the available types of screening values (e.g., soil, groundwater, soil gas, and indoor air), the screening values for selected chemicals that commonly drive VI investigations (e.g., TCE, PCE, benzene, and other selected VOCs), and the basis of risk levels used for cancer and non-cancer risk. Federal values are also included for comparison. It also summarizes available key policy criteria for each state, including trigger distances, default subsurface to indoor air attenuation factors, policies for evaluation of petroleum VI, strategies for preferential pathways, and policies for mitigation of VI. https://ngwa.onlinelibrary.wiley.com/doi/epdf/10.1111/gwmr.12627
Groundwater Monitoring & Remediation 44(3):76-93(2024)
Filed Under: General News
Filed Under: General News
This paper summarizes current vapor intrusion (VI) guidance, petroleum hydrocarbon-specific VI guidance, and/or media-specific volatilization criteria in broader regulatory programs. Since 2018, 30 states have revised their guidance, issued new guidance or updated criteria or other VI-related information. For each state and the District of Columbia, the review includes tabulations of the available types of screening values (e.g., soil, groundwater, soil gas, and indoor air), the screening values for selected chemicals that commonly drive VI investigations (e.g., TCE, PCE, benzene, and other selected VOCs), and the basis of risk levels used for cancer and non-cancer risk. Federal values are also included for comparison. It also summarizes available key policy criteria for each state, including trigger distances, default subsurface to indoor air attenuation factors, policies for evaluation of petroleum VI, strategies for preferential pathways, and policies for mitigation of VI. https://ngwa.onlinelibrary.wiley.com/doi/epdf/10.1111/gwmr.12627
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