News Release 621

Veolia ES Oak Ridge Sanitary Landfill in violation for methane migration

Volume 38-621 (For Immediate Release)
For more information: 573-751-1010

JEFFERSON CITY, MO, OCT. 26, 2010 –   The Missouri Department of Natural Resources has issued a notice of violation to Veolia Environmental Services Solid Waste Midwest for exceeding regulatory limits for methane gas at the Veolia ES Oak Ridge Sanitary Landfill in St. Louis County.

The landfill, located on Sulphur Springs Road in Valley Park, exceeded the regulatory limit for methane gas at the property line on 24 occasions in two monitoring wells.  Veolia Environmental Services Solid Waste Midwest failed to immediately notify the department of the methane exceedences, as required by regulation. 

The department is requiring Veolia to develop and implement an emergency gas management plan, including notification of residents occupying structures within 1,000 feet of the affected wells.   Veolia is also required to offer adjacent property owners installation and replacement of methane detectors as needed.

The Department of Natural Resources has been working with Missouri landfills on methane issues.  The department will work with Veolia as they continue to address the gas migration.

Landfill gas is a term for a mixture of gases, including methane, carbon dioxide and trace constituents of other contaminants that are byproducts of the decomposition of waste.  The concern about landfill gas migrating from the landfill is that methane is explosive within a certain range of concentrations, between 5 percent and 15 percent by volume.

Methane is colorless and odorless.  The department encourages nearby property owners to be aware of the potential for methane migration in the area and cooperate with Veolia as it implements the company’s emergency gas management plan.

For additional information, contact the Department of Natural Resources’ Solid Waste Management Program at 800-361-4827 or 573-751-5401.

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