The Bureau for Remediation and Redevelopment Tracking System on the Web (BOTW) is a searchable database maintained by the Wisconsin Department of Natural Resources that includes information on the investigation and cleanup of environmental contamination in Wisconsin that may affect soil, groundwater, sediment, indoor air, and more.

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Please refer to the Help,  Disclaimer and Glossary pages for information on using BOTW.

Please click here to view a list of additional resources: Action Code Reference, Great Lakes Areas of Concern, BRRTS Bulk Data Download, Drycleaner Facility Listing, Environmental Services Contractor List, Liens/Notices of Contamination, PFAS Site Listing, Open Spill Incidents, and State-Funded Response Cleanups.

BRRTS data comes from various sources, both internal and external to DNR. There may be omissions and errors in the data and delays in updating new information.