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Soil Vapor Sampling SOP Page 2 of 11 Stantec Rev. 1.0 Apr 2019 The following is just a short list of the items. Careful consideration of these items by the project team is essential, and the ultimate responsibility of the project manager. • Traffic guidance and control. Even plans developed by outside traffic control contractors need to be carefully evaluated to be sure that they serve our staff and our contractor's best interests. Follow Stantec's Traffic Guidance and Control Procedure. • Personal protective equipment including high visibility traffic vest, gloves, appropriate clothing. • Heat and cold stress. • Biological hazards such as insects and spiders. Therefore appropriate clothing is required such as long sleeve shirts and long pants. Spiders are often encountered with well. • Bloodborne pathogens. Some of our sites may have syringes and other drug paraphernalia that must be avoided. • Chemical exposure on sites with open contamination. Respiratory protection may be necessary. Proper selection of respiratory protection is as essential as understanding its limitations, i.e., negative pressure respiratory protection does not supply oxygen in an oxygen-deficient atmosphere. • Use of air monitoring instrumentation will not likely be necessary. We must be careful to make sure that our instrumentation is appropriate for the airborne contaminants of interest and that our staff understands the limitations of the instrumentation. Staff must also understand and perform calibration including zero-ing with zero gas cylinders and appropriate other calibration gases. • Decontamination of equipment and personnel must be properly designed and constructed to be sure that contamination is kept within the boundaries of the exclusion zone. • Noise and proper use of hearing protection devices such as ear plugs and muffs. • Emergency action plan must be carefully coordinated in advance between Stantec, our subcontractor, the client and emergency responders. • Ergonomics should be considered when setting up equipment. Ensure that staff does not lift more than 50lbs alone. All of these risks and others must be discussed with project subcontractors, if applicable, and clients to ensure they are properly addressed. Once the issues have been addressed at a project management level, they must be communicated to the staff actually performing the work. Details of procedures, instrument measurements, and other activities must be recorded in the field log and/or on data collection forms. THIS INFORMATION FOR AUTHORIZED COMPANY USE ONLY STANTEC CONSULTING