The Wisconsin DNR’s Remediation and Redevelopment Program recently updated the numerical soil standards in its spreadsheet of residual contaminant levels (RCLs). The RCLs were determined using the U.S. EPA regional screening level web-calculator.

A summary of the changes to the RCLs is in a new document, titled “RR Program’s Soil RCL Spreadsheet Update,” publication number RR-052g.

For more information and to access the RCL spreadsheet (macro and non-macro versions), visit the Wisconsin DNR’s Resources for Environmental Professionals web page and click on the “Soil RCLs” tab.