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Safety and Health Plan <br />Tracy Ridge Tracy, California <br />March 27, 2019 Terracon Project No. NA187052.1 lierracon <br />Heat Stress <br />Whenever ambient temperature exceeds 70 degrees F and personal protective equipment <br />requirements are Level D or Level D modified, the following heat stress monitoring and preventive <br />measures will be implemented: <br />Mobilize at least one gallon of water for each field employee during each day of site <br />activity. <br />Periodically observe personnel for signs of heat stress (excessive perspiration, flushed <br />skin, nausea, etc.). <br />Move affected workers out of contaminant zones, <br />Loosen protective clothing and permit them to rest <br />Have conscious, affected personnel drink at least one 8 oz. glass of cool water. <br />Check pulse; personnel should not return to work until pulse rate is less than 90 beats/min. <br />Heat Stress in Level C/Level B PPE <br />In addition to the above precautions, the following procedures will be implemented whenever the <br />ambient temperature exceeds 70° F and personal protective equipment requirements are Level <br />C or above. Ambient temperature will be measured with a dry bulb thermometer and percent cloud <br />cover will be estimated: <br />1.0 = No Clouds <br />0.75 = 25% Clouds <br />0.5 = 50% Clouds <br />0.25 = 75% Clouds <br />0.0 = 100% Clouds). <br />Calculate the adjusted temperature using the following formula: <br />ADJUSTED TEMPERATURE = 13(% CLOUD COVER) + DRY TEMPERATURE <br />Rest regimens will be implemented at frequencies dependent upon adjusted temperature. Monitor <br />pulse during each rest period. <br />Adjusted Temperature Rest Period/Monitoring Frequency <br />90+ After 15 minutes <br />87.5-90 After 30 minutes <br />82.5-87.4 After 60 minutes <br />77.5-82.5 After 90 minutes <br />70.5-77.4 After 120 minutes <br />23