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About 811
One easy phone call to 811 quickly and easily begins the process of having underground utility lines marked.  After a call is received, South Dakota One Call Center personnel will notify all affected utility companies who will mark underground utility lines for free. Some underground lines on private property are privately owned and may not be marked by a utility.  Other underground lines, between a meter and the home or business, may be considered privately owned, in which case a charge by the utility may apply to locate and mark those lines.

Calling 811 will help save lives and protect infrastructure. Knowing where underground utility lines are buried before each digging project begins helps protect all parties involved from injury, expense, and penalties. The depth of utility lines varies and there may be multiple utility lines in the same area. Even simple digging projects can damage utility lines, disrupt vital services to an entire neighborhood, harm diggers, and potentially result in expensive fines and repair costs. Marked lines show diggers the approximate location of underground lines and help prevent undesired consequences.

811 Consumer Fact Sheet – facts for consumers about the 811 service.

Visit to submit an electronic locate request; understand your responsibilities as a facility operator, homeowner, excavator or farmer; or to submit a complaint about a One Call violation.