Vent Hole Condition
A reference table for codes that describe the condition of the vent holes for a crest-stage gage.
United States Geological Survey, Surface Water User Group
| Code | Sort Order | Valid Flag | Name | Description |
|---|---|---|---|---|
| UNSP | 1 | true | Unspecified | The condition of the intake holes were not specified by user. |
| VNOP | 2 | true | Open | The intake holes are open. |
| VNPP | 3 | true | Partially plugged | The intake holes are partially plugged. |
| VNPD | 4 | true | Plugged | The intake holes are plugged. |