(220 ILCS 50/4) (from Ch. 111 2/3, par. 1604)
    Sec. 4. Required activities. Every person who engages in nonemergency excavation or demolition shall:
        (a) take reasonable action to inform himself of the location of any underground utility
    
facilities in and near the area for which such operation is to be conducted;
        (b) plan the excavation or demolition to avoid or minimize interference with underground
    
utility facilities within the tolerance zone by utilizing such precautions that include, but are not limited to, hand excavation, vacuum excavation methods, and visually inspecting the excavation while in progress until clear of the existing marked facility;
        (c) if practical, use white paint, flags, stakes, or both, to outline the dig site;
        (d) provide notice not less than 48 hours but no more than 14 calendar days in advance
    
of the start of the excavation or demolition to the owners or operators of the underground utility facilities in and near the excavation or demolition area through the State-Wide One-Call Notice System or, in the case of nonemergency excavation or demolition within the boundaries of a municipality of at least one million persons which operates its own one-call notice system, through the one-call notice system which operates in that municipality.
        At a minimum, the notice required under this subsection (d) shall provide:
            (1) the person's name, address, phone number at which a person can be reached, and
        
fax number, if available;
            (2) the start date and time of the planned excavation or demolition;
            (3) all counties, cities, or townships, or any combination thereof, where the
        
proposed excavation shall take place;
            (4) the address at which the excavation or demolition shall take place;
            (5) the type and extent of the work involved; and
            (6) the section or quarter sections when the information in items (1) through (5) of
        
this subsection (d) does not allow the State-Wide One-Call Notice System to determine the appropriate excavation or demolition site. This item (6) does not apply to residential property owners;
        (e) provide, during and following excavation or demolition, such support for existing
    
underground utility facilities in and near the excavation or demolition area as may be reasonably necessary for the protection of such facilities unless otherwise agreed to by the owner or operator of the underground facility;
        (f) backfill all excavations in such manner and with such materials as may be reasonably
    
necessary for the protection of existing underground utility facilities in and near the excavation or demolition area;
        (g) after February 29, 2004, when the excavation or demolition project will extend past
    
28 calendar days from the date of the original notice provided under clause (d), the excavator shall provide a subsequent notice to the owners or operators of the underground utility facilities in and near the excavation or demolition area through the State-Wide One-Call Notice System or, in the case of excavation or demolition within the boundaries of a municipality having a population of at least 1,000,000 inhabitants that operates its own one-call notice system, through the one-call notice system that operates in that municipality informing utility owners and operators that additional time to complete the excavation or demolition project will be required. The notice will provide the excavator with an additional 28 calendar days from the date of the subsequent notification to continue or complete the excavation or demolition project;
        (h) exercise due care at all times to protect underground utility facilities.
    
If, after proper notification through the State-Wide One-Call Notice System and upon arrival at the site of the proposed excavation, the excavator observes clear evidence of the presence of an unmarked or incompletely marked utility in the area of the proposed excavation, the excavator shall not begin excavating until all affected facilities have been marked or 2 hours after an additional call is made to the State-Wide One-Call Notice System for the area. The owner or operator of the utility shall respond within 2 hours of the excavator's call to the State-Wide One-Call Notice System; and
        (i) when factors, including, but not limited to, weather, construction activity, or
    
vandalism, at the excavation site have caused the utility markings to become faded or indistinguishable, the excavator shall provide an additional notice through the State-Wide One-Call Notice System requesting that only the affected areas where excavation or demolition is to continue be re-marked. Facility owners or operators must respond to the notice to re-mark according to the requirements of Section 10 of this Act.
    Nothing in this Section prohibits the use of any method of excavation if conducted in a manner that would avoid interference with underground utility facilities.
(Source: P.A. 96-714, eff. 1-1-10.)