I'm a GC in Cincinnati OH. While doing a remodel ran into what I believe to be a leaking street supply under the front porch. I'm getting ready to take a look tomorrow; the home owner seems to be sure that it's lead and has already been repaired at least once. I would appreciate some input on horizontal drilling to run the new line in this application - never used it. It seems that it would be far more efficient, and work saving as it looks like this line runs under the sidewalk, flower beds, etc. Is the cost comparable, in a residential application, to digging it out and effecting the repairs on the sidewalk, landscape etc. ??? Thanks