I just moved into my home in Rockland County, NY, and we heard the sound of rushing water in one of the lower level rooms. It is a bi-level, no basement, built on slab. We were told the main water line coming into the house is broken. I am resposible for it. It runs under my driveway. This was has been running for some time. Is it safe to re-route the water pipe through the side of the house so as not to dig up the driveway. I was told that there could be a gully under the slab where the water gushed and that we should not reroute the line but replace the original so there is no chance of the house settling where this gully would remain and cause structural damage.