COMPLIANCE INFO_2023 ARCADIS REPORT

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4 Mudd rotary drilling 1 The raised derrick can strike Never move the rig with the derrick up. overhead utilities,tree limbs Ensure there is proper clearance to raise the or other elevated items. derrick,and that you are far enough away from overhead power lines.See the Utility Location H&S policy and procedure for guidance. 2 This technology uses fluid, Wear rubber boots if needed,and keep clear which collects with of muddy/wet area as much as practicable. If sediments in large basin. area becomes excessively muddy,consider Fluid can splash out and mud spikes or covering the area with a cause slipping/mud hazard. material that improves traction.Wear safety Liquid mixture can splash glasses. into your eyes. 5 Hollow stem auger drilling 1 All hazards in step 3 apply. Never move the rig with the derrick up. Additionally,The raised Ensure there is proper clearance to raise the derrick can strike overhead derrick,and that you are far enough away utilities,tree limbs or other from overhead power lines.See the Utility elevated items Location H&S policy and procedure for guidance. 2 Hands or fingers can get Auger should always be stopped and clutch caught and crushed if trying disengaged prior to cleaning. to clean by hand or with tools while the auger is still turning. 6 Air Rotary Drilling 1 This drilling method works When the drill rig is being driven into media, with high air pressure and it will produce flying debris.The flaps behind can generate flying debris the drill rig should stay closed whenever that can strike your body or possible to reduce the risk of flying debris. get in your eyes. Safety glasses and hard hat should always be worn when the drill rig is operating.When penetrating asphalt,protect surrounding cars that may be present to avoid damage to pain or windshields. 2 The raise derrick can strike Never move this rig with the derrick up. overhead utilities,tree limbs Ensure there is proper clearance to raise the or other elevated items. derrick and that you are far enough away from overhead power lines.See the Utility clearance H&S Standard for guidance. 3 When drilling through Supplemental water should be used to bedrock prior to manage dust and/or dust masks should be groundwater,dust can be used if necessary. produced from pulverization. Inhalation of dusts/powder can occur. 7 Reverse rotary drilling 1 This method will use fresh Ensure the pit construction can hold the water to pump out drill amount of cuttings that are anticipated.Air cuttings through the center monitoring should also be used of pit area. of the casing. Water/sediment mixture is generated and could cause contact with impacted soils or groundwater. 2 Fire hydrants are often used Water usage from fire hydrants should be for water source.Hydrants cleared with local municipalities prior to use. deliver water at high Only persons that know how to use the pressure.Pressurized water hydrant should be performing this task. can cause flying parts/debris Ensure all connections are tight,and hose and excessive slipping line is not run over to cut by traffic.Any leaks hazards. from the hydrant should be reported immediately. 3 Settling pit construction can Cone off the area to keep the general cause tripping hazard from public/visitors away from the settling pit. excavated soils,and plastic Ensure proper sloping of excavation. sheeting can cause slipping. 4 The raised derrick can strike Never move the rig with the derrick up. overhead utilities,tree limbs Ensure there is proper clearance to raise the or other elevated items. derrick,and that you are far enough away from overhead power lines.See the Utility Location H&S policy and procedure for guidance.