| Injection Point | Yordas Cave [SD70557909] |
|
| Detection Point | Keld Head (via West Kingsdale Master Cave) Keld Head. See notes [SD69587656] |
| Tracer | Fluorescein |
| Quantity | Several kg |
| Detection Method | Cotton wool and visual (see notes) |
| Time | < 7 days |
| Distance | |
| Average Velocity | |
| Depth |
| Date | 02/05/1981-09/05/1981 |
| Notes | Positive in Rowten Passage upstream sump. Visual positive at Thornton Force. Negative in Mud River Series upstream sump |
| Test credit | Andy Tharratt plus ULSA |
| References |