| Cell |
| Covered canopy sides open |
| Empty - not currently in use |
| Fenced - no cover open area |
| Misc |
| No defined area grouping of material |
| Pump area - hazardous material |
| Room within general structure |
| Storage |
| Structure containing Hazmat |
| Structure processing Hazmat |
| Tank |
| Vessel - processing chemicals |
| Warehouse |