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AECOM • Adhere to applicable regulations, standards, and manufacturers'specifications; • Provide for service by appropriately qualified maintenance personnel; and, • Require maintenance schedules and records of maintenance. 4.7.4 Employees or operators who are assigned equipment are required to review maintenance schedules for that equipment and will confirm that required maintenance has occurred or see that it is undertaken. 4.8 General Requirements 4.8.1 Excluding geoprobe activities, set up any sample tables and general work areas for employees at a safe distance from the rig. • The recommended safe distance is the height of the fully extended mast plus 5 feet(1.5 meters), and no less than 30 feet(9.1 meters)from the rig. • An increase to this distance may be required due to noise exposure hazards. Refer to S3AM- 118-PR1Hearing Conservation. 4.8.2 Operation of the drilling, boring or direct-push equipment shall be restricted to the designated operator except to activate the emergency shut-off as required. • All rotary drilling equipment shall have an emergency shut off/kill switch. The location of the switch and operation should be reviewed with all involved Employees. 4.8.3 Sit-on direct push rigs are not permitted on AECOM worksites unless the rig has been modified (in accordance with manufacturer's requirements)to be operated by remote control or the rig has been manufactured with a rollover protection system and seat belt. 4.8.4 Consult jurisdictional regulations as use of J-hooks and cat-heads may be prohibited. Examples: • 29 CFR 1926 requires derricks and cranes to use hooks with self-closing latches and permits the use of J-hooks only for a task unrelated to this procedure (setting trusses). • British Columbia and Saskatchewan prohibit the use of friction cat-heads. 4.9 Identifying the Work Area 4.9.1 Ensure the work area is adequately identified: • Including zone around the drilling, boring, or direct push equipment, as well as fluid equipment, entry point, exit point and any excavated areas. • Utilize barricades, signage, pylons, snow fence, etc. as appropriate. • Implement traffic control as necessary. • Coordinate with concurrent operations to identify their associated hazards and controls, and communicate those associated with AECOM tasks. 4.9.2 When operating near public vehicular and pedestrian traffic,the on-site personnel shall take every precaution necessary to see that the work zone is properly established, identified, and isolated from both moving traffic and passer-by pedestrians(refer to S3AM-306-PR1 Highway and Road Work). 4.9.3 All traffic control devices shall be installed, placed, and maintained in accordance with a Traffic Control Plan, client specifications, and/or the Manual of Uniform Traffic Control Devices and Manual of Uniform Traffic Control Devices for Canada in Canada. Traffic control devices shall consist of and not be limited to • Directional and informational signage; • High visibility barricades, cones, or barrels; • Lighting; and • Other equipment and devices as required. 4.10 Clearing Work Areas Drilling,Boring,&Direct Push Probing(S3AM-321-PR1) Revision 2 July 31,2019 PRINTED COPIES ARE UNCONTROLLED. CONTROLLED COPY IS AVAILABLE ON COMPANY INTRANET. Page 5 of 12