Existing Conditions: I have 2 grounding electrodes attached to the
100 amp service panel at my cottage in Canada. The first, a metal water pipe grounding electrode, has been eliminated due to the installation of our own water pump (not a well) using plastic pipe; it cannot be re-established. The second is a metal grounding rod of unknown length, driven into the earth at a shallow angle (20-30 degrees) and still connected to the service panel by a #4 or #6 stranded copper conductor. According to Electrical Code Simplified
2002, Ontario Book No.1, where there is no "continuously conductive metal water piping system", I may use Ground Rods - 10-702(3). Problems: 1.) Although one ground rod exists, it is not bonded to a second rod at least 10 feet (3m) away. 2.) The angle of the existing ground rod is due to ROCK, and I doubt that it reaches the required 4 feet at the lowest end. With a piece of rebar and a sledge hammer, I have tested the depth of the soil and I hit ROCK within 18". So, Concerns: 1.) Assuming I can find 10 feet of good earth for both rods (4+ feet angled), how far from the panel can the location of the actual rods be? 2.) Do I need 2 electrodes of 2 bonded rods each, or is the 1 #6 solid, continuous, copper conductor bonded to the 2 copper
1/2"/10 foot rods sufficient? 3.) What if I can't find deep enough earth? This is a serious life safety issue for me so I very much appreciate the help you are willing to give. Thank you in advance for your help!