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1%W .,01 brief inhalations of high concentrations can cause fatal pulmonary edema. The vapors are considered to be moderately poisonous. If its concentration in air is sufficiently high to reduce the oxygen content below that needed to maintain life, it acts as a simply asphyxiant. A human eye irritant. to fight fire use foam, CO2, dry chemical. 3.) Dry Ice / Carbonic Ice / C.A.S. - 1845 21 • Properties: In solid form it is white in color and emits a odorless, colorless, non- flammable gas. (CO2) • IDHL - 40,000 ppm Dry Ice: Caution should be exercised when handling the product to reduce the exposure of frost bite to the skin and eyes. Gloves and safety glasses required. B. Physical Hazards Minimal potential exposure to nuisance dust from excavation, soil boring, stockpiling and eventual backfilling operations. 2. Potential particle in eye hazard if wind conditions develop. 3. Potential exposure to traffic hazards associated with vehicle/equipment operations. 4. Potential intermittent exposure to noise at levels above 90 dBA. 5. Potential physical injury hazard from operation of heavy equipment, i.e. rotary drilling rig. 6. No heat stress hazard is anticipated because of predicted ambient weather conditions (with day time temperatures of 80-90°F). 7. No anticipated high voltage electrical hazards (no overhead or underground utilities in the excavation or drilling area). V. JOB HAZARD SUMMARY The excavation activities are anticipated to be completed in one day. This event will be completed to gain access to the U.S.T.'s and complete the preparations necessary for removal. These activities present minimal potential exposure to hazard as long as a good and safe work practice is employees. The work area is semi -isolated from the other facility operations, reducing the likelihood of outside interferencelinteraction with equipment operation or employee actions. VI. GENERAL HEALTH AND SAFETY REQUIREMENTS A. Training All contractor and subcontractor field personnel assigned to this operation will have completed applicable OSHA Health and Safety Training and are current on their refresher course certifications.