The debate over how to destroy old CWs – incineration or neutralization – is continuing this summer in Oregon over how the Umatilla Chemical Depot should proceed with destruction of its mustard stockpile. This issue has been ongoing for several years with some facilities using incinerators and others neutralizing agents. Environmental groups argue that mercury in the mustard is not destroyed by incineration and is also not sufficiently removed by filters. Its release into the environment would contaminate the water of the surrounding community. The Oregon Department of Environmental Quality and the Environmental Quality Commission are holding public meetings in July and August before they decide on what will be the best course to move forward with CW destruction at the Depot.