Heavy Equipment Operator Certification Exam Prep · Question
A utility locate request indicates a 300 mm diameter potable water main running through the excavation area. What colour marking paint is typically used to denote this utility?
Blue is universally recognized as the colour code for potable water lines in underground utility marking systems, ensuring clear identification for excavators.
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Question: A utility locate request indicates a 300 mm diameter potable water main running through the excavation area. What colour marking paint is typically used to denote this utility?
Answer options:
- Red ✅ Blue
- Green
- Orange
Correct answer: Blue
Explanation: Blue is universally recognized as the colour code for potable water lines in underground utility marking systems, ensuring clear identification for excavators.
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