Sampling – Soil Background and Risk Assessment
WEBA well-designed sampling program is critical when conducting a study to determine default or site-specific soil background or obtaining soil samples from an investigative site that is being evaluated to compare to default or site-specific soil background.
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Statistics – Soil Background and Risk Assessment
WEBThe minimum sample size is the number of individual samples required to conduct a specific statistical test or to calculate a specific statistical parameter with an acceptable level of uncertainty. Generally, a minimum sample size of 8–10 samples is required to do this ( (USEPA 2009), (USEPA 2015)).
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Soil Background and Risk Assessment - ITRC | ITRC
WEBTest. Publication Date: 12/29/2021. Topics. Risk Assessment. Soil Background. Although 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 ...
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