Environmental Protection
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Landfill environmental monitoring FAQ
Where do I mail landfill environmental monitoring data for upload to GEMS? For United States Postal Service, mail to: GEMS Data Submittal Contact – WA/5 Wisconsin Department of Natural Resources PO Box 7921 Madison, WI 53707-7921…
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Collecting and analyzing Wisconsin landfill environmental monitoring data
The DNR's Waste and Materials Management Program has collected environmental monitoring data from licensed landfills since the mid-1970s. These data are captured in the Groundwater and Environmental Monitoring System (GEMS) database. Program staff…
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Wisconsin's waste imports and exports
One of the most common questions about Wisconsin's landfills has been how much waste they receive from other states each year. This amount changes from year to year due to a variety of factors, including the overall cost of landfilling in…
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Public access to landfill environmental monitoring data (GEMS on the Web)
The data contained on the DNR's Groundwater and Environmental Monitoring System is available to the public through GEMS on the Web. This online portal allows the public to access all monitoring data available for each facility in the system from the…
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Resources for landfill owners and operators
Landfill rule revisions effective Oct. 1The DNR has revised administrative code that regulates municipal solid waste and industrial landfills. The changes will take effect Oct. 1, 2025.
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Solid waste tip fees and landfill tonnage reports
Landfill rule revisions effective Oct. 1The DNR has revised administrative code that regulates municipal solid waste and industrial landfills. The changes will take effect Oct. 1, 2025.
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Landfill gas emissions
Much of the waste placed in municipal solid waste landfills gets decomposed by bacteria, and this decomposition results in the production of landfill gas. Landfill gas that is not collected can result in landfill gas emissions. General information…
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Development on landfills
The DNR's Remediation and Redevelopment and Waste and Materials Management programs have jointly developed a process and guidance for development on landfills. The process and guidance discuss two general categories of landfills: historic fill sites…
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Landfill environmental monitoring data submittals
Procedures for preparing and submitting landfill data to the DNR's Groundwater and Environmental Monitoring System (GEMS) have been consolidated into a single document called Procedures for Preparing and Submitting Landfill Environmental Monitoring…
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Landfill manager and operator certification requirements
Landfills in Wisconsin must be run by certified facility managers and site operators. An applicant for facility manager certification must have at least two years of experience operating or being directly responsible for the operation, design,…