What can be done to remedy the problem of digging a pond into the village's dragon vein?

If it is on the north side of the mountain, you can build the pond into the shape of a chicken wing and plant reeds all over the pond to give wings to the flying dragon. However, do not aim the tips of the chicken wings at the dragon's body.

If it is on the south side of the mountain, you can make the pond round. This is a dragon playing with pearls, and the pond is a dragon pearl.

To be more specific, it is better to consult a Feng Shui master. It is recommended to find one from Hong Kong and Taiwan (to avoid encountering scammers).