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• 0 FIELDWORK HEALTH & SAFETY PLAN (HASP) FOR FIELD INVESTIGATIONS OF PETROLEUM DISTILLATE FUELS • The driller is to verify that the rig is in neutral when the operator is not at the controls. • Become familiar with the hazards associated with the drilling method used (cable tool, air rotary, hollow -stem auger, etc.). • Do not wear loose -fitting clothing, watches, etc., that could get caught in moving parts. • Do not smoke or permit other spark -producing equipment around the drill rig. • The drill rig must be equipped with a kill wire or switch, and personnel are to be informed of its location. • Be aware and stand clear of heavy objects that are hoisted overhead. • The driller is to verify that the rig is properly maintained in accordance with the drilling company's maintenance program. • The driller is to verify that all machine guards are in place while the rig is in operation. • The driller is responsible for housekeeping (maintaining a clean work area). • The drill rig should be equipped with at least one fire extinguisher. • If the drill rig comes into contact with electrical wires and becomes electrically energized, do not touch any part of the rig or any person in contact with the rig, and stay as far away as possible. Notify emergency personnel immediately Injection: Injection. Where these chemical injection remediation technologies are engaged within the site target areas, the procedures and handling practices identified below must be implemented. Chemical/compound -specific hazards and controls associated with the chemical injection are discussed after these general bullets. Pre -Injection 1. Review the Material Safety Data Sheets (MSDSs) for the materials which are expected to be utilized in the chemical injection processes for this contract task order and: - Attach MSDS's to this safety plan. - Ensure that appropriate spill response materials are present (e.g., absorbent media for oil, neutralizing agents for potassium permanganate, secondary containment for larger chemical tanks). 2. Evaluate potential for "daylighting"of chemical injection in the work area: - Evaluation should identify known or potential pathways such as existing monitoring wells screened at the same depth interval as the planned injection, wells that were not properly abandoned, and utility corridors. - Identify potential surface release areas such as nearby sensitive areas (e.g., wetlands) storm drains, ditches, or streams, and ensure that mitigation measures are in place (e.g., temporarily blocking storm sewer drains). - Contact the project Manager for assistance in identifying release scenarios and mitigation measures. Injection Operations • Operate and maintain pressure vessels, pumps and hosing in accordance with the manufacturer's recommendations. • Do not exceed the rated pressure of the vessels and associated piping or hoses of the system. • The system must be provided with a pressure relief valve/controller that safely reduces the system pressure to within the system rated pressure. • The pressure relief valve must be rated at no more than 110% the rated pressure of the system and must be tested at regular intervals. • Each vessel must be equipped with a functioning pressure gauge to monitor pressure. • For PPE and air monitoring requirements, refer to the PPE section and Site Monitoring section of this plan. PPE shall be used to minimize potential exposure to identified site contaminants of concern and injection solutions during site injection operations. In addition, good personal hygiene practices and procedures must be practiced. • Use face shields in combination with safety goggles when the potential for exposure to chemical splashes may exist. Additional respiratory protection may be required depending on the chemicals being used. • If repairs to injection delivery system components are necessary after the subsurface injection operations have been initiated, the injection lines must be relieved of pressure and drained before conducting repair work. • Drums shall be moved using a drum "dolly" or other appropriate material handling equipment where the weight of the drum can be properly managed and secured during the movement. • Empty containers may require special preparation/rinsing prior to disposal. Verify requirements with the project Environmental Manager. • Only qualified personnel, by prior training or experience, may operate the injection system delivery components/array(s). • Appropriate spill response materials for all chemicals must be present at the job site. Only qualified (by training and previous experience) who have proper PPE and equipment available shall provide spill response operations. • Station a portable eye wash in the immediate work area where chemical injections are occurring, along with wash facilities for hygienic practices and PPE decontamination. • If PPE becomes saturated and may potentially impact work clothing, dermal surfaces, or mucous membranes, change PPE immediately. • Verify the competency and integrity of the chemical injection hoses/piping and connection points • Confirm hose/piping rated for project. • Verify the any cam -lock fitting on the injection hose/piping, well head, or direct push technology (DPT) rods are structurally sound and free of defects. Where hoses are used, ensure fittings have been secured to the hose surface via mechanical banding equipment to prevent whipping. • When injecting under pressure, stand at a sufficient distance (i.e. - 20 feet) from the injection well head/point. Keep unessential project personnel away from the injection system, array, and well head(s) during injection operations. • Remove/stow all unnecessary equipment and material in the area. • The injection system/array must be monitored/attended at all times during the injection process and when not in use, components must be properly secured, de -energized, or stowed. If the system will operate without an attendant, plans for operating unattended must be in place an approved by the PM. - 7 - Revision: 7 — June 2013