The updated Guidance: Vapor Quick Lookup Tables (RR-0136) and companion publication History of Changes to Vapor Quick Lookup Tables (RR-0137) are now posted and available online.  

The Vapor Quick Lookup Tables (RR-0136) summarizes indoor air vapor action levels (VALs) and sub-slab, soil gas and groundwater vapor risk screening levels (VRSLs) for chemicals commonly found in Wisconsin based on the U.S. Environmental Protection Agency (U.S. EPA) Regional Screening Levels (RSLs). Changes include updated instructions when calculating the VALs and VRSLs for consistency with the Vapor Intrusion Guidance (RR-800). Additional changes to the publication and to the companion document improve the readability of information in the tables.   

Additional documents and guidance from the Remediation and Redevelopment Program may be found using the search tools available on the publications and forms webpage.    

Contact a DNR vapor intrusion specialist with any questions.