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Underground Utility Locating Services We Provide for Charleston and Hanahan South Carolina

In the United States, the American Public Works Association (APWA) Uniform Color Codes for temporary marking of underground utilities are listed below:

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
Purple reclaimed water, irrigation, and slurry lines
Pink temporary survey markings, unknown/unidentified facilities
White proposed excavation limits or route


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