@goat-girlz Well your biggest problem is actually probably the maple tree itself. Trees and springs never mix well together because one they consume an incredible amount of water and two the roots growing in or near a spring can disrupt the path of the water. The only benefit a tree(s) give a spring is some shade so that the sun does not evaporate the water or work to gradually dry the spring area up. Shade can be easily created though with a small pole building whose water shedding potential will help add water to the ground around the spring itself. If i were in your position I would look at deleting the maple tree (along with it's root ball) from the equation entirely or at the very least pruning it back as much as possible so that it does not 'drink' the spring dry every summer. The other big concern to note with trees growing in a spring area is that if they ever get uprooted by the wind (which is highly likely in such wet terrain) there is a good chance that when the root mass tears free of the ground it will either divert, partially obstruct or fully destroy the spring itself.

P.S. If you post some pictures of your spring, the catchment system around it, the silt trap (if there is one) and the cistern I may have some helpful advice on things you can do.