You gents would have a hard time in my neighborhood. In general the whole area here will inspect for this: (Mandatory and no debate) Cold-water <5'of interior, Hot water at the heater no less than #8, and depending on the town or existing service either gas at the water-heater, or new services from the second fitting of the gas main to the main panel or electrode in less than #8. Hot-tubs and Jaccuzis bonded local to unit in #8+. The thinking is that any pipe in the building "may" become energized by any branch or even the service. And has been that way for a long-time here. It's a check-list item for them...