Please enlighten me, as I'm having a hard time understanding the controversy of driving 1 or 2 groundrods. 250.56 Resistance of Rod, Pipe, and Plate Electrodes.
A single electrode consisting of a rod, pipe, or plate that does not have a resistance to ground of 25 ohms or less shall be
augmented by one additional electrode of any of the types specified by 250.52(A)(4) through (A)(8). Where multiple rod,
pipe, or plate electrodes are installed to meet the requirements of this section, they shall not be less than 1.8 m (6 ft) apart.
Either test and prove the ohms or supply 2 grounding electrodes, this code seems to be EXTREMELY clearly written.
I install 1 groundrod to supplement my primary grounding electrode (whether it is another groundrod, a rod, a pipe, or a plate) because that is what the code requires.
Always passes inspection. Shouldn't it?