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Health and Safety Plan 1319 & 1327 South Madison Street, Stockton, CA 432770 TABLE 2. Cooling Power or Wind on Exposed Flesh Expressed as Equivalent Temperature (tinder caltn conditions) Actual Temperature Reading ('F) Estimated Wind Speed(ill tnph) 50 40 30 20 1❑ 0 —10 —20 —30 —40 —50 —60 Equivalent Chill Temperature(°F) calci 50 40 30 20 10 ❑ —10 —20 —30 —40 —50 —60 S 48 37 27 16 6 —5 —IS —26 —36 —47 —5- —68 10 40 28 16 4 —9 —24 —33 —46 —58 —7U —53 —95 15 36 22 9 —5 —18 —32 —45 —58 —72 —85 —99 —112 20 32 18 4 —10 —25 —39 —53 —67 —82 —96 —110 —121 25 30 16 0 —15 —29 —44 —59 —74 —88 —104 —118 —133 30 28 13 —2 —18 —33 —48 —63 —79 —94 —109 —125 —140 35 27 11 —4 —20 —35 —51 —67 —82 —98 —113 —129 —145 40 26 10 —6 —21 —37 —53 —69 —85 —100 —116 —132 —148 (Wind speeds LITTLE DANGER RI CREASD Cr DANGER GREAT DANGER greater than 40 In C lir with dry skin. Danger froln freezing of Flesh may freeze within 30 Lnph have little Maximum dancer of false exposed flesh within one seconds. additional effect.) sense of security nulZute. Trenchfoot acid immersion foot may occur at any point on this chart. Det°eloped by U.S.Anny Research Institute of EnvirolunentaI Medicine.N atick._MA. ❑ Equivalent chilli temperature requiring dry clothin.e to maintain core body tempearture above 36°C(96.8°F) per cold stress TLV Cold Stress Prevention Engineering controls should be utilized whenever possible to protect workers from cold related hazards. For example, on-site heat sources, heated shelters, work areas shielded from drafty or windy conditions, and the use of thermal insulating material on equipment handles. Effects arising from cold exposure will be minimized by the following control measures: • Personnel will be trained to recognize cold stress symptoms. • Field activities will be curtailed or halted if the equivalent chill temperature is below 20 F. • As much as possible, work that exposes personnel to the cold will be done during the warmest hours of the day. • Inactivity in cold conditions will be kept to a minimum. • Frequent short breaks in warm, dry shelters will be taken. • Vehicles will be equipped with supplies in case the vehicle becomes inoperable (e.g., blanket, dry clothing, water, food, a shovel, etc. The following PPE will be provided during work in cold environments: • Workers will be provided with insulated dry clothing when the equivalent chill temperature is less the 30 F. • Feet, hands, the face, and the head should be protected (40% of the body's heat can be lost when the head is exposed). • Foot and hand wear may also need to be waterproof. • Clothing should be layered so that adjustments can be made to changing environmental temperatures and conditions. For example, an outer layer to break the wind, a middle layer that will absorb sweat and retain insulation when wet, and an inner layer that allows ventilation.