| Access Riser or Clean Out (no sump) |
| Control Structure |
| Channeled Manhole (round basin no sump) |
| Other non-standard catchment (sump or no sump) |
| Type 1 Catch Basin (rectangle basin w/sump) |
| Type 1 Inlet (rectangle basin no sump) |
| Type 2 Catch Basin (round basin w/sump) |
| Type 2 Inlet (round basin no sump) |
| Unknown |
| Small Yard Drain |
| <all other values> |