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From: ITRC <itrc@itrcweb.org>

‌ Soil Background and Risk Assessment  Web-Guidance - December 2021 NOW AVAILABLE!  While some state and federal agencies and other entities have guidance documents regarding soil background, there is not one comprehensive and widely accepted guidance document that summarizes the state of the science on this topic. This ITRC guidance document is intended to fill the gap by providing a comprehensive defensible framework for establishing and using soil background in risk assessments. It focuses on the process of establishing defensible background concentrations of naturally occurring or anthropogenic ambient chemicals to be used for risk assessment at contaminated sites. ACCESS THE DOCUMENT About the SBR Document  This guidance provides information on: Natural, anthropogenic ambient, default, and site-specific soil background  How to establish default and site-specific soil background  How to use soil background in risk assessment  How to use geochemical evaluations as a line of evidence How to use environmental forensics as a line of evidence   Sampling and analytical methods for soil background  Statistics to establish and use soil background in risk assessment  States’ approaches to soil background and a list of guidance and studies Frameworks to depict the process generally used  Coming Soon: SBR Training  ‌  ‌  ‌ ITRC is a program of the Environmental Research Institute of the States (ERIS). ERIS is a 501(c)(3) organization incorporated in the District of Columbia and managed by the Environmental Council of the States (ECOS).

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