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Kennedy/Jenks Consultants <br /> 3 An atmosphere presenting a threat of causing death, injury, acute illness or <br /> disablement exists <br /> Adverse climate conditions, primarily heat, are important considerations in planning and <br /> conducting site operations Maximum daytime temperature may exceed 90 degrees F° at <br /> the site and heat stress is an associated concern Preventative measures should include <br /> the following <br /> • Frequent rest periods in the shade The following work/rest schedule can <br /> be used as a guideline <br /> Adjusted Active Work Time (min/hr) <br /> Temoerature„(°F) Using Level Q PPE <br /> 75 or less 50 <br /> 80 40 <br /> 85 30 <br /> 90 20 <br /> 95 10 <br /> 100 0 <br /> iCalculate the adjusted temperature <br /> T (adjusted) = T (actual + 0 3 x fraction sunshine) <br /> Measure the air temperature with standard thermometer, shielded from <br /> direct sunlight Estimate fraction of sunshine by judging what percent the <br /> sun is out 100% sunshine = no cloud cover 1.0, 50% sunshine = 501/6 <br /> cloud cover = 0 5, 0% sunshine = full cloud cover = 0 0 <br /> • Water and/or commercial electrolyte solutions will be available and drinking <br /> of these fluids will be encouraged outside of the designated work area. <br /> • When level C protection is required, suitable acclimation periods will be <br /> provided for workers to gradually establish their resistance to heat stress <br /> Personnel exhibiting symptoms of heat stress (nausea, cramps, dizziness, clammy skin) will <br /> be removed from the work area, cooled, fluids will be administered, and the personnel will <br /> be observed Personnel exhibiting symptoms of heat stroke (hot dry skin, mental <br /> confusion, unconsciousness) will be immediately cooled and taken to the hospital <br /> 4.2 Potential Chemical Hazards <br /> VOCs have been detected in groundwater and soil at the site Field personnel could <br /> potentially be exposed to VOCs and other chemicals at the site by direct contact with soil <br /> or groundwater, through inhalation of dusts containing organic chemicals, or through <br /> inhalation of organic chemical vapors Field personnel will minimize potential chemical <br /> SI m"&SPInn 5 910557.00 <br />