I recently had a 1,000 gal wastewater tank installed just downhill from
my septic tank. It pumps the liquid effluent uphill to the drainfield.
The old arrangement was a 100 gal plastic tub with two pumps and the
pit in which it sat had flooded severely and the tank basically floated
off its moorings and disconnected from the drainfield pipe.
So the contractor recommended the installation of the underground
concrete tank - basically a second septic tank - it won't float off
that's for sure. The pit (a 4x4x8 ft deep block structure) was
demolished and backfilled.
It appears that whatever spring kept the original pit flooded has
redirected itself and now exits the ground about 10-15 ft farther down
the hill and now half my front yard is a shallow swampy muck!
I'm wondering: if this problem didn't result in a flooded front yard
before, why now?
And is it possible to redirect what appears to be an underground spring
- I see water coming out of the ground in two or three different spots
(mostly where excavation had taken place) within a 10 ft radius.
Normally, the lowest part of my property acts as a non-tidal wetland,
but this is happening farther up than ever before.
Any resources for dealing with this sort of thing?
Capping it would be great, but what I really need is a way to keep the
water from spreading like it does.

Would like to hear any first hand accounts of similar problems and how
they were dealt with.

Thanks for listening.