You're right to question this and understand the code's intent. Your interpretation of the NEC (and likely the CEC) is correct. Let's break down the situation based on the NEC, which the CEC is heavily based on, and then address how to approach the inspector.

Understanding the NEC Requirements for Water Pipe Grounding (Referencing NEC 2020, likely similar to the CEC) 250.50 Grounding Electrode System

This section requires you to create a grounding electrode system, typically with a ground rod (or rods), a concrete encased electrode (ufer), or a ground ring. You've addressed this with your two ground rods.

250.52(A)(1) Metal Water Pipe

This section details using a metal water pipe as a grounding electrode.

(A)(1) (1)

Says metal water pipe shall be supplemented by an additional electrode in accordance with 250.53

(A)(1) (2)

This outlines the actual method of using the pipe as a grounding electrode: It must be electrically continuous Contact with the earth Bonding the piping system internally within 5 feet of the entrance The bonding conductor needs to be sized based on 250.66 (the size of the ungrounded service conductors)

250.68(C) Grounding Electrode Conductor and Bonding Jumper Connection to Grounding Electrodes

This is the section that allows the water pipe to be used as a connection point for additional electrodes: This section says, in a nutshell, that you can use the interior metal water piping as a connection point to bond supplemental grounding electrodes

if you have compliant grounding electrode system.

Your Situation and Assessment1. You are NOT using the water pipe as a grounding electrode. You have your own grounding electrode system with two ground rods. This is a valid, code-compliant system on its own.2. Bonding the Water Pipe

The requirement to bond the water pipe within 5 feet of entry only applies if you are relying on the metal water pipe as part of your primary grounding electrode system. Since you're not, it's not required.3.

Your #6 Conductor

The #6 conductor from your service panel is likely a bonding jumper to the water pipe. This is often done for equipotential bonding, which is different from grounding. Its purpose is to equalize the potential between the electrical system ground and the water piping, reducing shock hazards from differences in voltage potential.

Why the Inspector Might Be Confused (and How to Address It)

Inspectors sometimes default to the "bond the water pipe within 5 feet" rule without fully understanding the context. Here's how you can approach the situation:1. Politely Explain Your Design

"Inspector, I understand the requirement to bond the water pipe within 5 feet of entry when it's used as the grounding electrode. However, in this installation, I'm utilizing two ground rods as my primary grounding electrode system, compliant with NEC 250.50 and 250.
53. I'm not relying on the water pipe as a grounding electrode." "The #6 conductor is installed to provide equipotential bonding to the water pipe, as required by 250.104, not as a grounding electrode conductor."2.

Show Your Drawings/Design (If You Have Them)

Having a simple sketch of your grounding system can help the inspector visualize your setup and understand your intention.3.

Reference the Code

Have your NEC (or CEC) code book handy. Point to the sections mentioned above: 250.50 (Grounding Electrode System) 250.52(A)(1) (Metal Water Pipe, specifically the conditions under which it must be bonded within 5 feet) 250.53 (Supplemental Electrodes, illustrating your choice of ground rods) 250.104 (Bonding of Piping Systems and Exposed Structural Metal)4.

Be Respectful and Professional

Even if you're frustrated, maintain a respectful tone. Inspectors have a tough job and are often trying to ensure safety. A collaborative approach is more likely to be successful.5.

Ask for Clarification

Ask the inspector specifically what code section they believe you are violating. If they cite 250.52(A)(1), politely explain that you are not using the water pipe as the grounding electrode.
6.

Escalate If Necessary

If the inspector remains insistent, ask to speak to their supervisor or the head of the inspection department. Be prepared to provide documentation and code references.

Regarding the #6 Conductor & Equipotential Bonding

Even if you're not required to bond the water pipe within 5 feet for grounding purposes, you are likely required to bond it somewhere else. This is usually done to any metal water piping system to equalize potential. This is typically addressed by 250.104.

In Summary

You are likely correct in your assessment. Your two ground rods should be sufficient. The inspector is likely applying a rule that only applies if the water pipe is being used as the grounding electrode, which it is not in your case.

Disclaimer: I am an AI chatbot and cannot provide definitive legal or electrical code interpretations. Always consult with a qualified electrician or electrical engineer for installations and code compliance in your specific jurisdiction. Flag for review