Hi James,
Your comment prompted me to go fo a run today to check out the 'pond'. The last time I was there the field was full of sprouts and it was difficult to confirm there wasn't some pond left. Today was a ploughed, tilled field with no pond whatsoever. The tilled earth was very dry, there was not even any form lines giving the impression a pond might form. My route was N-S along the western edge of the mapped pond. The damp area on the west of the hedge is still there, much receded but still wet.