Grounding to Old Copper Pipe

[jbroberts38]

Home is 50 yrs, and water supply was 1". County changed meters to 3/4" about 20 yrs ago. Water supply was cut off at meter 18 years ago, with copper left in ground. New supply is PVC. Upgraded panel 14 years ago. Recently added

Grounding has remained to 1" copper, connecting about 7 ft from entry point. Panel bonds to service neutral, and grounds to heavy copper wire connected to water pipe. Service pole with Transformer has same gauge copper wire to ground.

Recently added Levitron whole panel surge protector (grey box, not the small version sold in HD) in position 1 of the panel, and it has green lights.

Question: how can I confirm that the ground effect from the old copper water supply pipe is still adequate not only to provide panel ground, but also for lightning surge suppression? I am guessing I need to use a meter(s), which I have, though need a little specific direction if that is what I am to use.

I am looking for safety and lightning supression, and avoiding jerry-rigging.

Thanks!

 

[augie47]

Sorry,but............


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