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PERSONNEL SAFETY REQUIREMENT <br />Level of Protection Requirements <br />"B" XX "D" <br />Other <br />—X� "C2" <br />Chemical Protective Clothing Requirements: Hard hat, safety glasses, steel -toe boots, <br />nitrile gloves worn when handling samples. If benzene is measured in air with a <br />photoionization detector (PID) in excess of one part per million by volume TLV -TWA, <br />Tyvex chemical resistant suits will be worn. <br />Respiratory Protection Requirements: Half- or full -face respirator with organic vapor <br />cartridges readily available for use. Wear respirator if ambient action levels prescribed <br />below are recorded when using direct -reading air monitoring instruments. <br />Ambient Air Monitoring Requirements: PID used at about 30 minute intervals to check <br />for organic vapors in the employee breathing zone. Wear respirator if breathing zone <br />levels reach or exceed 5 ppm. Benzene exposure limits are 1 ppm (8 -hour TWA) and 5 <br />ppm STEL. A conservative estimate of benzene concentration in gasoline vapor is 20%. <br />Field Personnel Training Requirements: Employee and subcontractor training to be in <br />compliance with CCR Title 8 GISO 5192 regulations. All site personnel will have <br />undergone 40 hour initial Hazardous Waste Site training, 8 -hour annual updates, annual <br />medical exam, and doctor's approval to wear a respirator. Burlington supervisors will <br />have completed an 8 -hour Supervisors Training Course, and will be certified in First Aid <br />and CPR. Employees and subcontractors will supply current medical monitoring status, <br />and current respirator fit test status. Burlington personnel will demonstrate familiarity <br />with photoionization detector uses and limitations. <br />Decontamination Requirements: Dispose of disposable equipment on-site. Label all <br />wastes generated during drilling operation. Wash hands and face before eating and <br />after work. <br />Health Hazard Information: Benzene is a low level constituent of gasoline. Benzene is a <br />documented human carcinogen causing leukemia in chronically exposed individuals. <br />PEL for benzene is 1 ppm. Action level set to prevent adverse effects from occurring. <br />