Hey guys, I am re-working the entire electrical system in an older house, (taking out all of the peg and tube wiring and replacing with romex) and I have a question about the grounding electrode. It is a 100 amp service so I know that I only need 6 AWG copper (I am using bare, stranded), but I am unclear of where this electrode must be bonded to the water piping system. The water lines are all being replaced, and as of right now the current grounding electrode is bonded to the water line about 6-8" from where it enters the basement, right below a shut-off valve a total distance of about 45' from the panel. The piping is to be re-routed to go to the bathroom, washer, water heater, etc., but the bottom line is that it will come to within 10' from the panel for the water heater. My question is can I bond onto this new copper piping at any point, or does it have to be below the shut off valve? Any help is greatly appreciated and also any other suggestions as well. Thanks alot guys!