The Remediation and Redevelopment (RR) Program seeks your input on a new guidance document titled Calculating Soil RCLs for PAHs Wis. Admin Code § NR 722.11 (1) (RR-079).
This guidance document introduces the modified residual contaminant level (RCL) spreadsheet that allows for an alternative method of calculating non-industrial direct contact RCLs for seven carcinogenic polycyclic aromatic hydrocarbons (cPAHs). The modifications are based on a reassessment of the risk posed by cPAHs by the Wisconsin Department of Health Services.
The modified spreadsheet assesses these cPAHs exclusively on cumulative risk and does not assess their individual compound-specific risk. Use of this spreadsheet complies with the requirements of Wis. Admin. § NR 722.11 for developing alternate standards when meeting the RCLs in Wis. Admin. § NR 720 is not practicable.