This is my enclosed spring it has never been dry in 30 years. Not even in the drought of 2006 . Once cleared covered and clean I will have the water tested .At one time it had a pump to the house but that was back before 1960,s.
The ivey around the spring is a good sign that the water is OK .I still will have it tested.
Hard to tell from a picture how grown up and large the area is .Once it is cleared and a drain is put in I hope to be able to keep it cut from now on with my yard tractor and push mower.