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0 SEMINFOUR Site Nmrd Analysis 4.1.7 Fire Prevention and Protection(SMSs 014,015, and 020) In the event fire or explosion becomes a threat, all personnel will be evacuated to a predetermined evacuation area until the hazardous situation is properly controlled or eliminated.This predetermined evacuation area will be discussed in the tailgate safety meeting. See URS SMS 014 for additional information. • Smoking or open flames are prohibited except in designated smoking areas. In designated areas, personnel who smoke must have a canister of water to extinguish their cigarette. • All flammable liquids will be stored in Underwriters Laboratory(UL)or Fire Marshals Association (FMA)-approved containers. Small quantities of most flammable liquids (5 gallons or less)may be stored in work areas,or carried in vehicles,providing those materials will be used on that same day. Class IA flammable liquids should be limited to 2 gallons in an approved safety can. • Any flammable wastes will be stored or disposed of in metal containers,clearly marked as containing flammable materials. Storage of combustible materials in work areas will be kept to a minimum. • A fire extinguisher,rated not less than 10-ABC,will be provided within 50 feet of wherever more than 5 gallons of flammable or combustible liquids or 5 pounds of flammable gas are being used on the job site(excluding the integral fuel tanks of motor vehicles)and during use of all heavy equipment. Portable fire extinguishers shall be inspected monthly and serviced at least annually by a person licensed or registered by the State Fire Marshal. • Dry chemical fire extinguishers,with minimum 20-ABC ratings,will be provided at all fieldwork areas. Any trailers used as office or workspace shall be provided with at least one 20-ABC rated fire extinguisher. • In the case of a fire on the site,the SM and/or SSO will assess the situation and direct fire fighting activities.URS personnel trained in the use of extinguishers may attempt to extinguish the fire with available extinguishers,if safe to do so. The SSO or designated field personnel will monitor the work site and must be attentive to the presence of explosive/flammable atmospheres particularly in confined or unventilated areas.When vapors are heavier than air and pose an explosion hazard,their explosivity/flammability hazard is increased,since they tend to concentrate near the ground or low-lying areas and are not easily diluted or dispersed. When monitoring the lower explosive limit(LEL-i.e.,the lowest concentration that will produce a flash of fire when an ignition source is present),it is important to take measurements near ground level. All project chemicals will be properly stored in flammable or acid cabinets as required by OSHA. Appropriate fire extinguishers,spill kits,and a spill response plan will be available. 4.1.8 Vehicle(Traffic) Hazards (SMS 032) In order to minimize vehicle(traffic)hazards,use of reflector vests, snow fencing(preferred),4-foot pylons,barricades,traffic spotters (as necessary), and use of vehicles as barriers will be implemented. Project personnel will comply with established traffic regulations. Orange cones are not recommended for traffic control as these are not as visible as the snow fencing or 4-foot pylons,but can be used when no UMH:\WPROCESS\25532\WORLDENTERPRISE\WELL DESTRUCTIOMATTACHMENT C WORLD ENTERPRISES HSP TG EDITS.DOC\1 8-NOV-1 1\\4-4