Marking flags and paint are used in a wide array of industries to keep job sites safe by alerting workers to the placement and type of underground utilities present. They can also indicate proposed purposes for specific areas on the site. There are a variety of colors, each with a different meaning. Here is a quick key to the various marking colors and what they signify:

PINK - Temporary Survey Markings

WHITE (or BLACK on snow) - Proposed Excavation

YELLOW - Gas/Oil/Steam, Petroleum, and Gaseous Materials

BLUE - Potable Water

ORANGE - Communications, Telephone, Cable TV, Alarm and Signal Lines

PURPLE - Reclaimed Water, Irrigation and Slurry

RED - Electric Power Lines, Cable, Conduit and Lightning Cables

GREEN - Sanitary Sewers, Storm Sewers, Drain Lines

Marking products are also available that are either pre-printed or custom printed for their specific purpose, making identification even easier.

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