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San Joaquin County <br />Department of Public Works <br />County of San Joaquin Dept of Public Works IIPP Rev 2020-01-31.docx P a g e | 48 <br /> <br />2. Heat Illness Prevention Plan <br /> <br />2.1 Purpose <br /> <br />2.1.1 The Department believes that it is the best interest of employees of Public Works while <br />working to adhere to safety practices related to the reduction of risk of Heat Illness. <br />2.1.2 All Divisions with workers whose normal job tasks occur outside of office or building <br />environments are required to follow these procedures. Those Divisions with workers in <br />buildings that require work in over 80º F are also advised to comply with these <br />procedures. <br /> <br />These procedures are implemented whenever the temperature is expected to be <br />80º F or above as indicated by the National Weather Service forecast <br />(http://www.nws.noaa.gov) as of 5 PM the previous day for San Joaquin County. <br />Each Division is expected to check the weather forecast the day before in order to <br />ensure that crews and employees are properly prepared and forewarned to <br />implement these procedures. An alternative is to, in the summer months assume <br />all days will be at or above 80º F and implement procedures daily. Additional <br />measures must be implemented when temperature equals or exceeds 95º F. <br />These additional measures include: effective communication by voice; observation <br />or electronic means (i.e., cell phones or portable two-way radios) must be ensured. <br /> <br />Any requirements or provisions listed in this program apply to all employees of <br />Public Works and those Alternative Work Program participants who are working on <br />projects for the Department. <br />2.2 Definitions <br />“Acclimatization” means temporary adaptation of the body to work in the heat <br />that occurs gradually when a person is exposed to it. Acclimatization peaks in most <br />people within four to fourteen days of regular work for at least two hours per day <br />in the heat. <br />“Heat exhaustion” is a heat-related illness that can occur after you've been <br />exposed to high temperatures, and it often is accompanied by dehydration. <br />There are two types of heat exhaustion: <br />•Water depletion. Signs include excessive thirst, weakness, headache, and loss of <br />consciousness.