For submerged facilities, when the owner or operator of the submerged facilities determines that a proposed excavation or demolition which could include anchoring, pile driving, dredging, or any other water bottom contact for any means performed is in proximity to or in conflict with, submerged facilities located under a lake, river, or navigable waterway, the owner or operator of the submerged facilities shall identify the estimated horizontal route of the submerged facilities, within 15 days or by a date and time mutually agreed to, using marking buoys, other suitable devices, or GPS location data unless directed otherwise by an agency having jurisdiction over the waters under which the submerged facilities are located.
Seasonal fluctuations shall not be considered within the reasonable control of underground utility facility owners or operators and the owner or operator's locate contractors or subcontractors within a place or places, when the notice volumes exceed the historical averages as determined by the reasonable control measurement, for non-emergency requests for utility excavation work for underground utility facility owners or operators, that is not part of a large project that has provided at least a 60 day advance notice.
Only utility excavators when doing utility work may be impacted by this subsection and may incur an additional wait time of up to 2 days.
If the underground utility facility owner or operator attempts to provide additional notice by telephone or by facsimile but receives a busy signal, that attempt shall not serve to discharge the underground utility facility owner or operator of the obligation to provide notice under this Section.
Facility type | Identification Color |
Underground utility facility owner or operator or contract locator use only | |
Electric Power, Distribution and Transmission...................... | Safety Red |
Municipal Electric Systems............ | Safety Red |
Gas Distribution and Transmission...... | High Visibility Safety Yellow |
Oil Distribution and Transmission...... | High Visibility Safety Yellow |
Communication Systems.................. | Safety Alert Orange |
Water Systems.......................... | Safety Precaution Blue |
Sewer Systems.......................... | Safety Green |
Non-potable Water and Slurry Lines.... | Safety Purple |
Excavator Use Only | |
Temporary Survey...................... | Safety Pink |
Proposed Excavation.................... | Safety White (Black when snow is on the ground) |
220 ILCS 50/10