Anyone digging, regardless of the depth of the project, is required by Illinois law to call into Joint Utility Locating and Information for Excavators (JULIE) at 800-892-0123. This notice must be at least 48 hours/two working days prior to the start of excavation, and the project must begin within 14 calendar days from the call. There are two things to remember when calling in a JULIE:
The caller must have the exact address
The caller must be the one actually performing the dig.
If you are having work done around your house which requires excavation, your contractor will call in for a JULIE. The state will then notify the utilities in your area to locate all underground lines in the surrounding area and properties.
The Association of Public Works has a uniform color code for marking underground utilities.