My electrician came out to measure my home grounding system. My house has two rods, one at the main panel and another at the front of the house. They’re bonded together for code compliance.
The one at the main panel sits in drier soil. The dirt around the top is dry. It measured 6.9 ohms.
The one in front of the house is in moist soil. It measured 2.5 ohms.
The main water pipe at the front of the house measured 1.2 ohms.
So… I guess I’m going to start watering the rear ground rod.