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S PERSONAL PROTECTIVE EQUIPMENT Based on the hazard analysis for this project, the following PPE will be required and used Changes to these specified items of PPE will not be made without the approval of the SSO ' The mirumum required level of personal protection on the site at all times is level D Level D consists of hard hat, safety glasses or' goggles, steel-toed boots, shirts with sleeves and long pants(or coveralls), and nitrile gloves Hard hate, safety glasses (goggles), and safety shoes must meet the criteria of the American National Standards Institute (ANSI) as indicated by markings on each individual item Ear plugs will be warn if, at any time, verbal communication becomes difficult to comprehend within a radius of three feet High visibility orange vests will be worn when local traffic is impacted Cold protective clothing will be available and worn as needed ' If Level C protection is required, it will consist of Level D protection described above, in conjunction with Tyvek coveralls, nitrile gloves and liner, chemical resistant boots, and full-face respirator with combination organic vapor/acid gas and high efficiency filter cartridges Contact ' lenses will not be permitted on-site If at nay time throughout the course of this job, there is a potential for increased exposure to the personnel, the appropriate upgrade of personal protective equipment will be required ' All field personnel in the immediate work area must have an air-purifying respirator, for which they have been satisfactorily fit-tested and medically qualified, and combination cartridges present on-site Facial hair and/or beards which interfere with the proper sealing of the respirator are not allowed for field personnel ENVIRONMENTAL MONITORING PLAN ' The potential hazards identified in the Hazard Analysis portion of this SSHP determined the need for initial and/or ongoing monitoring for assessment of exposure to the hazards as follows The Organic Vapor Monitor (OVM), a direct reading instrument will be used to monitor air quality and confirm the selection of personal protective equipment The OVM measures total organic vapors present in the ambient air The OVM will be calibrated prior to each day's activities using 100 ppm isobutylene in air as the standard ' Air monitoring for background levels of air contamination upwind of the project will be performed prior to the start of field activities Monitoring with the OVM will be conducted a minimum of every 15 minutes At any time the OVM reading shows a sustained concentration of 10 ppm or greater, air-purifying respirators will be worn by all personnel at that work location If the OVM shows a sustained reading of 100 ppm or greater at the breathing zone, work will be discontinued and field personnel will move away from the immediate work zone Field activities may resume after organic vapors dissipate and lower concentrations prevail If vapors do not dissipate to acceptable levels, the SSO will contact the HSD to re-evaluate the level of PPE prior to work proceeding E 16271kSSRP DOC