Use these flash cards to learn the color coding for locating underground utilities.
There are 6 flash cards in this set (1 page to print.)
To use:
1. Print out the cards.
2. Cut along the dashed lines.
3. Fold along the solid lines.
Sample flash cards in this set:
| Questions | Answers |
|---|---|
| Red | electric power lines, cables, conduit, and lighting cables |
| Orange | telecommunication, alarm or signal lines, cables, or conduit |
| Yellow | natural gas, oil, steam, petroleum, or other gaseous or flammable material |
| Green | sewers and drain lines |
| Blue | drinking water |
| White | proposed excavation limits or route |
