| Subject | Counties Served |
| Aboveground and Underground Storage Tanks (LUST)/Tank System Site Assessments (TSSA) | Douglas |
| Soil Cleanup Standards | Douglas |
| Vapor Intrusion | Ashland, Barron, Bayfield, Burnett, Douglas, Florence, Forest, Iron, Langlade, Lincoln, Oneida, Polk, Price, Rusk, Sawyer, Taylor, Vilas, Washburn |