| Air Permit - Group 1 Grain Elevators |
| Air Permit - Dry Cleaner |
| Air Permit - Small Bulk Gas Plant |
| Air Permit - Large Bulk Gas Plant |
| Air Permit - Minor |
| Air Permit - PBR Spray Booth |
| Air Permit - Title V |
| Air Permit - Title V / Minor EI |
| Airports, landing fields |
| Open feedlot |
| Confined animal feeding operation |
| Contaminated sites |
| Lead-zinc mines |
| Ethanol, biodiesel plants |
| Tier II Chemical Storage |
| Hazardous Materials Spill |
| Hospitals |
| Cemeteries |
| Land application site |
| Risk management plan |
| Cond. Ex. Sm. quan. haz. waste gen. |
| Small quan. hazarous waste gen. |
| Large quan. hazardous waste gen. |
| Unspecified hazardous waste gen. |
| Other hazardous waste |
| Above ground fuel storage |
| Underground storage tank |
| Leaking USTs |
| Solid waste facility |
| Unsewered communities |
| Wastewater industrial contributor |
| Wastewater outfall |
| Wastewater treatment facility |
| Toxic release inventory |
