George:
I think they can attach the ground anywhere on the domestic water system. I think we can trust the electrician to check and make sure he has ground continuity. THe 5 foot rule applies to the bonding of the service equipment. This would be equipment grounding and would be simular to the requirements for a seperate building or structure where you are assuring the equipment ground part. Normally the 120 volt feed to these panels will contain an approved egc. Now George that is my opinion and I am going to stick by it.
