Here are the different utility color codes and what they mean:
- Red — Electrical power lines, cables, conduits, and lighting cables.
- Yellow — Natural gas, oil, steam, petroleum, or gaseous materials.
- Orange — Communications, alarm and signal lines, cables, or conduits.
- Blue — Potable water lines.
- Purple — Reclaimed water, irrigation, and slurry lines.
- Green — Sewer lines.
- White — Areas of proposed excavation.
Make sure you exercise caution while you dig because utility lines can’t always be pinpointed exactly, and their depths can’t always be precisely determined. If you’re looking for an underground utility locator you can use on your next project, be sure to browse through the broad selection we have at Engineer Supply.