The Mine Shafts Project. Hydrology.

The data for most of this year. Rainfall at Taunton top and shaft water level bottom. There is a close relationship between the two though other factors like plant and tree growth come into play. The lowest theoretical shaft water level would be close to 9m thus opening up the lower drainage adit but this has not happened in the three years of monitoring. The second big shaft takes a lot of water in very wet spells. Not directly from the surface but a metre or so below the cap. The adit outflow runs the same most of the time so its all a balance of input over output. The adit clearly throttled by blockage somewhere. Of course as the water table lowers the hydrostatic pressure reduces thus decreasing the outflow. Maybe one day ---

 
Work continues with a trip on Sunday and another tomorrow. However its attritional and only creeping forward slowly. I will come back to this thread when something of note happens if ever. Meanwhile we have returned to our old digs at Fairy Cave Quarry at Quarter Way Up Hole.
 
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