This is a great opportunity. Take a leaf out of John Luck's book.He searched his map, located the ponds and their farms and then guess what, he went and knocked on the farmer's door and asked permission. It worked, the farmer was very cooperative and John visited his ponds. On two of those ponds Lestes dryas was found. These ponds could be its most important habitat in the Weald.
The answer depends on you. It would be great to have a WEDG meeting this autumn reviewing all your finds.