| Subject | Counties Served |
| Construction and Demolition Landfills | Brown, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Marinette, Menominee, Oconto, Oneida, Shawano, Vilas |
| Landfill Design and Construction | Brown, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Marinette, Menominee, Oconto, Oneida, Shawano, Vilas |
| Landfill Gas and Leachate | Brown, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Marinette, Menominee, Oconto, Oneida, Shawano, Vilas |
| Landfill Operation | Brown, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Marinette, Menominee, Oconto, Oneida, Shawano, Vilas |
| Landfill Ownership and Liability | Brown, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Marinette, Menominee, Oconto, Oneida, Shawano, Vilas |
| Landfills, Active | Brown, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Marinette, Menominee, Oconto, Oneida, Shawano, Vilas |
| Landfills, Building or Development | Brown, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Marinette, Menominee, Oconto, Oneida, Shawano, Vilas |
| Landfills, Closed | Brown, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Marinette, Menominee, Oconto, Oneida, Shawano, Vilas |
| Waste & Materials Management | Brown, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Marinette, Menominee, Oconto, Oneida, Shawano, Vilas |