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brief inhalations of high concentrations can cause fatal pulmonary edema. The vapors are <br /> considered to be moderately poisonous. If its concentration in air is sufficiently high to <br /> reduce the oxygen content below that needed to maintain life, it acts as a simply <br /> asphyxiant. A human eye irritant, to fight fire use foam, CO2, dry chemical. <br /> 3.) Dry Ice 1 Carbonic Ice 1 C.A.S. - 1845 21 <br /> • Properties: In solid form it is white in color and emits a odorless, colorless, non- <br /> flammable gas. (CO2) <br /> • IDHL - 40,000 ppm <br /> • Dry Ice: Caution should be exercised when handling the product to reduce the exposure <br /> of frost bite to the skin and eyes. Gloves and safety glasses required. <br /> B. Physical Hazards <br /> 1. Minimal potential exposure to nuisance dust from excavation, soil boring, stockpiling and <br /> eventual backfilling operations. <br /> 2. Potential particle in eye hazard if wind conditions develop. <br /> 3. Potential exposure to traffic hazards associated with vehicle/equipment operations. <br /> 4. Potential intermittent exposure to noise at levels above 90 dBA. <br /> 5. Potential physical injury hazard from operation of heavy equipment, i.e. rotary drilling <br /> rig. <br /> 6. No heat stress hazard is anticipated because of predicted ambient weather conditions <br /> (with day time temperatures of 80-90°F). <br /> 7. No anticipated high voltage electrical hazards (no overhead or underground utilities in the <br /> excavation or drilling area). <br /> V. JOB HAZARD SUMMARY <br /> The excavation activities are anticipated to be completed in one day. This event will be <br /> completed to gain access to the U.S.T.'s and complete the preparations necessary for <br /> removal. These activities present minimal potential exposure to hazard as long as a good <br /> and safe work practice is employees. The work area is semi-isolated from the other <br /> facility operations, reducing the likelihood of outside interference/interaction with <br /> equipment operation or employee actions. The work site is located in the maintenance <br /> area of the school and therefore no anticipated air borne hazards are anticiapted. <br /> VI. GENERAL HEALTH AND SAFETY REQUIREMENTS <br /> A. Training <br /> All contractor and subcontractor field personnel assigned to this operation will <br /> have completed applicable OSHA Health and Safety Training and are current on <br /> their refresher course certifications. <br /> 2 <br />