In article ,
bob haller wrote:
Dont forget to install a ground jumper between the 2 sides of the
water meter, meters dont make good conductors and might be removed at
some time.

And bond all grounds together. otherwise ground loops can occur.

Having grounds at different potentials can cause a hazard if anyone
gets across 2 different potential ones. Nasty shock can occur

Excellent "white paper" on grounding and the neutral-wire he

http://www.apcmedia.com/salestools/S...NQYQ_R1_EN.pdf