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HASP — Project Vandelay — Stockton Upgrade Geotechnical Exploration Services August 2019 Project No. 066079 Page 3 of 8 Level of Protection: ✓ "Level D" including hard hats, safety glasses, hearing protection, high visibility safety vest, steel toe boots, and nitrile gloves. ✓ US Coast Guard approved life vest when working adjacent to water or on the barge. ✓ Ring buoy with 90' of rope within 200' of work activities will be provided by Taber Drilling ✓ Lifesaving skiff will be provided by Taber Drilling. ✓ Air monitoring in the breathing space is not anticipated for this project. ✓ A 4 -gas monitor for periodic ambient air measurements near and downwind of the onshore borehole locations using a photoionization detector (PID) and organic vapor analyzer (OVA) will be used. Location(s) to be used: When to use: All people must meet "Level of Protection" requirements while working at the site. Overhead Power Lines and Underground Utilities Care should be used when drilling adjacent to overhead power and/or communication lines. Vertical and horizontal clearance from overhead power lines should be in accordance with OSHA guidelines, with the minimum as noted below: Nominal Voltage (phase tophase) Minimum Required Clearance (feet) 600 to 345,000 10 345,000 to 750,000 16 750,000 to 1,000,000 20 The rig may be closer to communication (i.e., non -conducting) lines provided the location is acceptable to the driller. The driller reserves the right to determine if a particular location is unsafe. In any case, disturbance or damage to existing facilities is not acceptable. Drilling should only be performed at locations marked and called into Underground Service Alert (USA) at least 2 working days prior to the start of drilling. USA ticket numbers and expiration dates will be provided on the first page of this plan. In addition to performing underground utility clearance through USA, Gannett Fleming will retain an underground utility surveyor to locate underground utilities in the area of the proposed landside borings and SCPTs. Following a response from members notified by USA, the utility surveyor will visit the site to mark underground utility locations on the ground with spray paint. The SSO is responsible for checking that there are no utilities or special instructions/markings in the proposed area of drilling. Minimum clearance from all marked utilities is three (3) feet. If markings are noted, the SSO should relocate the borings to an acceptable location within the cleared area. If a clear location cannot be located, the Project Manager should be notified and drilling of the location(s) postponed. berrTnPtt Fleming