Trace #493: Fellside laithe sink (Grassington)
Locations
 |
Injection Point | Fellside laithe sink [SD98475941] |
 |
Detection Point | Crutching Close resurgence in middle of field (Crutching Close) [SD97885875] |
Methodoloy
| Tracer | OBA |
| Quantity | 400ml |
| Detection Method | cotton wool |
Results
| Time | <7 days |
| Distance | 500m |
| Average Velocity | |
| Depth | 25m |
Test Details
| Date | 02-07-2023 |
| Notes | |
| Test credit | |
| References | J Southworth/Earby P C pers. com. |