The concept of horizontal drilling into a higher water table and creating a spring is REALLY cool.
I do not mean to crush any dreams here, BUT that technology is very expensive. I looked into horizontal drilling for a 4 to 6" gas pipe line (for work). The contractor responsible for developing the bid mentioned that horizontal drilling can run, in the neighborhood, of $1200 per foot. That's just for the hole, no liner, pipe pulling, nothing, just a hole.
At a small fraction of this cost ($1200/ft), let's say 10% = $120/ft...I could afford to go about 10 feet before I would start questioning my love for the water. And, don't mention "Rock", then the price can quadruple. Sheezzzz!