Uniform Color Code for Location of Underground Facilities
| Blue | Blue for Water
(Portable water for domestic use) |
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| Green | Green for Sewer (Storm sewers, sanitary sewers, and drain lines) |
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| Orange | Orange for Communications/Coaxial Cable (Communication, fiber, alarm, signal lines, cables, and conduit) |
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| Pink | Pink for Survey (Temporary survey markings) |
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| Purple | Purple for Reclaimed Water / Irrigation (Reclaimed water, irrigation, and slurry lines, not for domestic use) |
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| Red | Red for Electric (Electric power lines, cables, conduit, and lighting cables) |
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| White | White for Proposed Excavation |
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| Yellow | Yellow for Gas (Gas, oil, steam, petroleum, and gaseous materials) |
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