NJ Pat;
1st off, Welcome to ECN!
As already mentioned, you do not necessarily need to use driven rods for a Grounding Electrode System.
They are commonly used, but are one of many techniques.
For your situation, the Concrete Embedded Reinforcement Rods (Rebar) type of electrode is sufficient to
Suppliment the Cold Water Line - if this is usable as part of the Grounding Electrode System.
"Ufer Grounds" may be either the Rebar in Foundations and Footings, or may be a Concrete Encased bare Wire, of at least 20 feet length, #4 size and 24" burial depth.
Any "Available" type of Electrode should be included in the Grounding Electrode System. This would include:
- Buried Metallic Water Piping,
- Structural Steel,
- Reinforcement Steel in Foundations and Footings,
- Buried Metallic Well Casings
If you drove ground rods, or installed some type of ground plate or ring, these items would need to be included with the Grounding Electrode System - to form a single system.
In other words, all items need to be bonded together by an appropriate means, to form a single Grounding Electrode System.
These separate items may be close to each other, at a great distance from each other, or a combination of both.
Please reply if more information is needed.
Scott35
