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•Vent purged tank fumes a minimum of 12 ft above ground and/or 3 ft above adjacent rooflines. Inert tank vapors(instead of Steel toed and shank shoes,hard hat,safety Explosion/fire.Inhalation — - purging) glasses with side shields,hearing protection, exposure to vapors(both to •Frequently test%u oxygen(02)in bottom,middle,and top of tank. 02 must be reflective safety vest,chemical resistant workers and public). Skin bums <10%in tank. gloves(consider dry ice exposure when from dry ice. Injury from failure •Carbon dioxide(dry ice):Avoid skin contact. Wear resistant gloves and long choosing the glove model)and apron. of compressed gas(nitrogen) sleeves. cylinders. Bottled carbon dioxide(CO2)condensation •Nitrogen gas:Keep compressed gas cylinders secured,use proper regulators and causing static electricity and cylinder caps. Introduce nitrogen new bottom of tank(it is lighter than air)to associated explosion/fire hazard. get effective purge. Bond or ground cylinder nozzle. Slip,trip,and fall when •CO2(bottled gas):Not recommended due to creation of condensation. If used, accessing tank. High work if use same precaution as nitrogen gas bottles. climbing ladder to access tank. •Vent exhaust vapors a minimum of 12 ft above ground,and/or at least 3 ft above Prepare tank for removal Steel toed and shank shoes,hard ha[,safety Product spill. Slip or fall from ad'acent rooflines. — from excavation. glasses with side shields,hearing protection, top of tank. •Plug or cap all accessible holes. One plug should have a small(1/8-inch)vent reflective safety vest,chemical resistant hole to allow for pressure changes. loves and apron. Excavate around tank. Steel toed and shank shoes,hard hat,safety Injury from heavy equipment. glasses with side shields,hearing protection, Cave in of excavation walls. •Maintain safe distance from equipment and excavation,at least one foot away reflective safety vest,leather gloves for the Explosion/fire. Slip or fall due from the edge of the excavation for each foot of depth. non-chemical aspects of work. to uneven work surfaces. Struck •Stay in sight lines of operators. Use agreed-upon hand signals.Heed equipment by excavator. backup alarm and establish eye contact with operator. •Monitor air for LEL conditions and wind direction. Ventilate as needed. Remove tank. Steel toed and shank shoes,hard hat,safety Snapping cables/straps. Injury asses with side shields,heating g protection, from heavy equipment. •Inspect cables and strapping. reflective safety vest,leather gloves for the Explosion/fire. Product spill. •Stay clear of equipment and tank removal pathway. non-chemical aspects of work. Exposure to vapors. •Monitor air for LEL conditions,personnel exposure,and wind direction. Ventilate as needed. •Stay away from tank ends especially(weakest point in event of explosion). •Haves ill containment available. Collect samples in Steel toed and shank shoes,hard hat,safety Collapse of side wails.Injury •Stay out of excavation. Collect samples from backhoe bucket at safe distance accordance with sampling glasses with side shields,hearing protection, from heavy equipment y P Slip or plan. reflective safety vest,chemical resistant fall due to uneven terrain. from edge of excavation. gloves and apron. •Keep footing secure. •NOTE. SECOR staff are not to enter an excavation without fust contacting Philip Platcow,Director of Industrial Hygiene and Health&Safety(617)232- Load and transport tank and Steel toed and shank shoes,hard hat,safety Material falling from track. 7355. associated piping. glasses with side shields,hearing protection, Explosion/fire. Equipment •Verify all material is secured to truck. Recheck tank internal atmosphere for reflective safety vest,leather gloves for the backing. vapor concentrations and vent as needed. non-chemical aspects of work. •Heed backup alarms on vehicles. Follow Excavation JSA for further excavation,dewatering,backfilling,and site clean-up. SECOR International Incorporated 22 Generic HASP