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PES Environmental, Inc. • Safety Shoes/Boots - Free of holes, damage, soles have ample thread, and laces are adequate; and • Air Purifying Respirators, if appropriate - Parts to respirators are intact and in place. Inspect for malfunctions, tears or disfigurement of the mask, proper cartridges, valves are not torn or warped, head and neck straps have ample elasticity. 8.0 WORK PRACTICES Safe work practices to be employed during the entire progress of field activities are as follows: • Set up, assemble, and check out all equipment for integrity and proper function prior to starting work activities; • Do not use faulty or suspect equipment; • Use only new and intact protective clothing. Change the suit, gloves, or other protective clothing if torn; and • Do not use hands to wipe sweat away from face. Use a clean towel or paper towels. Disposable items (i.e., Tyvek coveralls, respirator cartridges, gloves, etc.) will be changed daily unless there is reason to change sooner. Pressurized sprayers or other designated equipment will be available in the decontamination area for wash down and cleaning of personnel, samples, and equipment. Respirators will be decontaminated daily. The masks will be disassembled, the cartridges replaced, and all other parts placed in a cleaning solution (typically warm soapy water). Prior to re-use of the respirator, employees will inspect their mask to ensure there are no apparent defects, tears, etc. 8.1 Equipment Decontamination Equipment utilized on the site (radios, instruments, samples, tools, drill rigs, other construction equipment) will be decontaminated prior to leaving the site. Smaller equipment can be protected from contamination by draping, masking, or otherwise covering the instruments with plastic (to the extent feasible) without hindering operation of the unit. The contaminated equipment will be taken from the drop area and the protective coverings removed and disposed of in appropriate containers. Any dirt or obvious contamination will be brushed or wiped off with a disposable paper wipe. The units can then be placed inside in a clean plastic tub, wiped off with damp disposable wipes, and dried. The units will be checked, standardized, and recharged as necessary for the next day's operation, and then prepared with new protective coverings. 148400101H002.doc 13