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MCP Numerical Standards: S-3 MCP Numerical Standards have been derived for three categories of soil that were designed to address a broad range of potential human exposures (Categories S-1, S-2 and S-3). The applicability of a particular soil category depends upon both the accessibility of the soil (measured primarily by depth) and the human activities that take place (or may take place) at the surface. Within a soil category there are further sub-categories identified by groundwater type: the soil standards within these subcategories have been modified by the potential for a contaminant to leach and degrade the site groundwater.
The S-3 soil standards consider incidental ingestion of the soil and dermal contact with the soil.
Documentation for the S-3 Standards
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List of Current Method 1 S-3 Standards - 310 CMR 40.0975(6)(c)
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Supplemental Material
Dermal Adherence
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Technical Update: Background Levels of Polycyclic
Aromatic Hydrocarbons and Metals in Soil
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priorities & results
laws & rules
