ARCHIVED REPORTS_REVISED DRYWELL CLOSURE AND INVESTIGATION WORK PLAN

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Neil O.Anderson&Associates HASP Page 9 of 21 March 18, 2014 ' To prevent heat cramps the out-of-shape or un-acclimated should not overexert themselves. Take frequent breaks in cool places. Before any strenuous activities are undertaken, warm up with exercises. Keep well hydrated and drink liquids that can replenish electrolytes. Fainting A worker who is not accustomed to hot environments and who stands immobile in the heat can ' faint. Due to the body's attempts to control internal temperature, enlarged blood vessels in the skin and lower part of the body may pool blood rather than returning it to the heart. Upon lying down, the worker should soon recover. Keeping slightly active should prevent blood from pooling and further fainting. Heat Rash Heat rash is likely to occur in hot, humid environments where sweat does not readily evaporate from the skin, leaving it wet most of the time. Sweat ducts become plugged, and a skin rash 1 can develop. When the rash is extensive or complicated by infection, heat rash can be very uncomfortable and may reduce a worker's performance. The worker can prevent this condition by taking breaks and resting in a cool place, changing into dry clothes, and regularly bathing ' and drying the skin. Transient Heat Fatigue ' Transient heat fatigue refers to the temporary state of discomfort and mental or psychological strain arising from prolonged heat exposure. Workers unaccustomed to the heat are particularly susceptible and can suffer, to varying degrees, a decline in task performance, ' coordination, alertness, and vigilance. The severity of transient heat fatigue can be lessened by a period of gradual adjustment to the hot environment (heat acclimatization). 6.2.3 Preparing for Work in the Heat One of the best ways to reduce the heat stress in workers is to minimize the heat in the workplace. However, heat production is difficult to control in some environments, such as outdoors where exposure to various weather conditions is likely and when wearing personal protective clothing. Humans, to a large extent, can acclimate to the heat. Adjusting to heat under normal circumstances usually takes five to seven days, during which time the body will undergo a ' series of changes that will make continued exposure to heat more endurable. Gradual exposure to heat gives the body time to become accustomed to higher environmental temperatures. Heat stress is more likely to occur among workers who have not been given ' time to adjust to working in the heat, among workers who have been away from hot environments, or among workers who have never been exposed to hot environments. Hot weather in the summer is likely to affect the worker who is not acclimatized to heat. Likewise, ' workers who return to work after a leisurely vacation or extended illness can be affected by the 1 ' 902 Industrial Way•Lodi,CA 95240•209.367.3701•Fax 209.333.8303 ®2014 Neil 0.Anderson&Associates,Inc.