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Tolerance zone
Dig with care
Proceed with caution
Would you like to know more?
Additional overhead and digging guidelines, emergency procedures, case studies, instructional videos and training tools can all be found, at no charge to you, on Xcel Energy’s e-SMARTworkers website.
To reach your state’s underground utility locate service/one-call center, call 811 or visit their online site by clicking on your state’s name below.
The required “business day” wait time for each state is as follows (excludes weekends and legal holidays):
 
 
811 Know what’s below. | Call before you dig.