In the 1980's, the agency published maps that identified geographic areas suitable for disposal sites.

It will process approximately 900,000 gallons of liquid nucear waste using a steam reforming process to produce a granular product suitable for disposal.

Among the items suitable for disposal at the special collection sites are disinfectants, bleach, spot removers, pesticides, shellac, antifreeze and mothballs.

Sewage treatment is the process that removes the majority of the contaminants from wastewater or sewage and produces both a liquid effluent suitable for disposal to the natural environment and a sludge.

The latest batch of soil was first classified as hazardous because it could ignite, Mr. Goings said, but once it lost that capability, the Michigan Department of Natural Resources changed the classification to solid waste, suitable for disposal in any industrial landfill in the country.