News Release 009

Jackson County landfill in violation for methane migration

Volume 39-009 (For Immediate Release)
For more information: 573-751-1010

JEFFERSON CITY, MO, JAN. 21, 2011 – The Missouri Department of Natural Resources has issued a notice of violation to Republic Services Inc. for exceeding regulatory limits for methane gas at the Courtney Ridge Recycling and Disposal Facility. The landfill is located in Sugar Creek, Jackson County.

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

The department's Solid Waste Management Program has been working with Republic Services to reduce the threat of landfill gas migration at the Courtney Ridge Recycling and Disposal Facility since 2002. The landfill made modifications to its methane extraction system in 2003 and continues to take corrective actions. The landfill is currently investigating the extent and pathways of the gas migration. Once the migration pathways are defined, additional corrective actions will be required to control the landfill gas on the property. Three out of the five hot wells are showing signs that corrective actions are working.

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. Landfill gas migration is a concern because methane is explosive within a certain range of concentrations, between 5 percent and 15 percent by volume.

Methane is colorless and odorless. The Department of Natural Resources encourages nearby property owners to be aware of the potential for methane migration in the area and cooperate with Republic Services as they conduct methane monitoring and provide methane detectors to those within the notification area.

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