ARKUPS - Understanding the markings and flags that utility companies use to indicate the approximate location of their buried utilities is critical to completing your digging project safely! Check out the color
Marking our facilities | We Energies
Decoding the colored utility flags you see at digging sites | 9news.com
Why is there a flag in my yard and what does it mean?
ClearPath Utility Solutions, LLC - Help! There are colored flags and/or
Markings and Colors | Call JULIE Before You Dig
What Do Utility Marking Colors Mean? | GPRS
Utilities and Safety Marking: Easily Missed and Extremely Important – Presco :: Marking Products and Engineered Films