Thanks for your response. The issue with ground rods in Sacramento and Sacramento County is they are supplementary only. Their purpose is to act as a safety net when the electrician is using the water as the GEC. Many times a house will be replumbed from the street to the meter in PVC and nobody thinks about the effects on the electrical system.

I know many places you can use one or two 8' ground rods 6' or more apart for the GEC but that isn't accepted here. Sure, from time to time I'll find an oldtimer inspector that says it is fine.