If the pizometric surface locally is above ground level, or the basement level....UH, OH.
I central Fla, where I lived in my teen thru middle 20s years, most places the pizometric
surface was about 10-50 ft below ground level. There were two places nearby where it went
above grade. There were pipes put in and "flowing wells" (artesian wells) ran there. VERY
pure water, some in that part of Florida have sulphur water so they would get drinking water
from the flowing wells. Others just wanted it because they figured it was extra pure.
A good friend has worked for the Florida Water Management District in that area since we
went to college, got a chart of the pizometric surface. It varies quite a bit, higher in some areas,
lower in others. Ocassionally, negative values, meaning it will rise above grade if given access,
via a natural opening (spring) or a pipe (artesian well).
In any case, you need to figure a way to put a pipe in from the basement to a spot on the surface
downhill enough somewhere to let it flow away naturally. Paying money to try to lower the
pizometric surface is a losing proposition, for sure. Not going to beat Mother Nature easily.
Bill