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AECOM • Formal notification may be accomplished through a review of the SH&E Plan or THAs by the concurrent operator and associated personnel, as evidenced by signing the respective document's acknowledgement. • Alternately, the concurrent operations may acknowledge having reviewed AECOM's procedures with a separate acknowledgment form. S3AM-322-FM1 Overhead Electric Power Lines Acknowledgement Form or equivalent may be used. • Prior to equipment operation within 10 feet(3.05 meters)of non-electrical obstructions, as appropriate to potential hazards associated with the obstruction, the Owner/Operator should be contacted to obtain specific details regarding the obstruction such as piping or tray contents, 4.3.7 Overhead lines are presumed to be energized unless the Overhead Electrical Line Owner/ Operator confirms that the overhead line has been, and continues to be de-energized and visibly grounded at the worksite. 4.3.8 Overhead lines are presumed to be uninsulated unless the Overhead Electrical Line Owner/ Operator or a registered Professional Engineer who is a Qualified Person with respect to electrical power transmission and distribution confirms that a line is insulated. 4.3.9 Confirm accurate measurement of load heights, maximum equipment radius and height or reach of any other equipment that could potentially encroach on the safe limit of approach for the overhead electrical line,guy wires, or other applicable overhead obstructions. • The height of all applicable overhead lines and obstructions that pose contact or encroachment potential shall be determined prior to work commencing. • The height of electric power lines may only be determined by the client, utility company professional, or by using an approved electronic measuring device. • Awareness shall be maintained for any elements that could affect clearance (e.g. snow pack, ice or snow weighing down lines, excessive heat causing sag, etc.). • Caution shall be exercised when working or travelling near overhead lines having long spans, since they tend to be more prone to lateral swing in response to the wind and can present a contact hazard. • All low hanging communication lines in close proximity to energized lines shall be clearly identified as Encroaching on Energized Lines. 4.3.10 Managers shall contact the overhead owner/operator(i.e. local utility company) if work is to be done or before equipment is operated within 50 feet(15.25 meters)of an energized overhead line, to determine the voltage of the overhead line and establish the appropriate MAD. • All inquiries regarding electric utilities shall be made in writing and a written confirmation of the outage/isolation shall be received by the appropriate AECOM Manager prior to the start of the task that may impact the utility. 4.3.11 Until the voltage of the overhead electrical line is known and the MAD established, an exclusion zone shall be created at ground level beneath and 50 feet(15 meters)perpendicular to the overhead electric power lines on each side. • The exclusion zone shall be demarcated with visual indicators(e.g., signage,flagging, paint, cones). No equipment shall enter the exclusion zone without approval from AECOM management. • Unqualified employees shall maintain a safe clearance distance in accordance with the established MAD when working in an elevated position near energized overhead lines. For additional information associated with Qualified Employees refer to S3AM- 302-PR1 Electrical Safety. Overhead Lines&Obstructions(S3AM-322-PR1) Revision 3 July 31,2019 PRINTED COPIES ARE UNCONTROLLED. CONTROLLED COPY IS AVAILABLE ON COMPANY INTRANET. 4 of 8