Use theĀ 811 utility locate codes below to determine what types of utilities have been located after they have been marked on your job site.
 

Massachusetts Underground Boring Utilities | 811 Electric Utility Color Code

Massachusetts Underground Boring Utilities | 811 Electric Utility Color Code

Red: electric power lines, cables, conduit, and lighting cables.

Massachusetts Underground Boring Utilities | 811 Communications Utility Color Code

Massachusetts Underground Boring Utilities | 811 Communications Utility Color Code

Orange: telecommunication, alarm or signal lines, cables, or conduit.

Massachusetts Underground Boring Utilities | 811 Gas Oil Steam Utility Color Code

Massachusetts Underground Boring Utilities | 811 Gas Oil Steam Utility Color Code

Yellow: natural gas, oil, steam, petroleum, or other gaseous or flammable material.

Massachusetts Underground Boring Utilities | 811 Sewer Drainage Utility Color Code

Massachusetts Underground Boring Utilities | 811 Sewer Drainage Utility Color Code

Green: sewers and drain lines.

Massachusetts Underground Boring Utilities | 811 Potable Water Utility Color Code

Massachusetts Underground Boring Utilities | 811 Potable Water Utility Color Code

Blue: drinking water.

Massachusetts Underground Boring Utilities | 811 Reclaimed Water Utility Color Code

Massachusetts Underground Boring Utilities | 811 Reclaimed Water Utility Color Code

Purple: reclaimed water, irrigation, and slurry lines.