On Jan 26, 1:26 pm, "JoeSpareBedroom" wrote:
"dpb" wrote in ooglegroups.com...

....
Utility water lines, otoh, are at least below frost line and any buried
electrical/telephone, etc., are also deeper.

Even though utility pipes are deeper, I asked the question because **** IF
**** a permit were required, the town might want to see a diagram of all
component locations, compared with utility pipes. The reason is simple: To
minimize the STOOPID FACTOR - an installer who doesn't bother checking where
utility lines are.

If only digging 6-8", what difference does it make? That's the point
and the why it doesn't make any difference -- nothing of real
consequence is buried so shallow. There are lots of ways for
installers to make stupid mistakes and/or decisions, but digging so
deep as to disturb other utilities isn't one.