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7.0 HAZARD ASSESSMENT 7.1 Chemical Hazards The hazardous waste received at a household hazardous waste event may consist of the following classifications: 1. Household hazardous waste; 2. Extremely hazardous wastes if they are managed in accordance with the appropriate regulatory requirements. 3. Unidentified household hazardous wastes if upon receipt they are analyzed to determine the hazardous characteristics of the waste for subsequent sorting and packaging as appropriate. PSC may elect not to accept any classification of hazardous waste, depending on the specific site and arrangements made for each collection event. 7.2 Inhalation Exposure Airborne concentrations of site contaminants are not expected to exceed the TLV's in the worker's breathing zone. Chemical waste containers are screened to identify those, which may leak or be in poor condition. The release of material from a chemical waste container shall be cause for immediate spill response procedures to be initiated. 7.3 Dermal Exposure Direct skin contact shall be avoided by wearing protective Tyvek coveralls, gloves, safety glasses, steel toe boots. However, if contact does occur, the exposed areas shall be washed with soap and water and rinsed thoroughly, as soon as possible. Exposed areas of skin and eyes shall be rinsed with water for at least 15 minutes, followed by medical attention upon review by the SSO. 7.4 Ingestion Exposure Site contaminants can enter the body by ingestion, potentially causing poisoning or internal tissue damage. Contaminants may be transferred from soiled hands to food, drink or cigarettes and enter the body. Therefore, the following guidelines will be followed on the site. ♦ No eating, drinking, or smoking will be allowed in the exclusion zone or decontamination zone. ♦ Personnel will thoroughly wash hands and face prior to entering a break area from the decontamination zone. ♦ Eating, drinking, or smoking will only be permitted in areas as designated by the PM and SSO. 7.5 Physical Hazards The physical hazards associated with the project include fire, equipment operation, falling, tripping, heavy traffic and hazards associated with working in a crowded location. 7.5.1 Fire All employees who have attended 40 -Hour and 8 -Hour Refresher classes have received awareness -level training on the use of fire extinguishers. In the event of a fire, employees are to be evacuated and the 911 emergency systems are to be called. In many cases, the local Fire Department is present at the site. Fire extinguishers are placed at a maximum of 50 feet from flammable materials. Employees may use these fire extinguishers on incipient fires, when safe to do so, within the scope of their training. Otherwise, all employees will be told to evacuate the area by their supervisors or 11