Working on the job site during the summer provides for excellent light, clear weather, and potentially temperate work days. Your workers generally will enjoy the weather! However, hot weather can bring with it problems, such as heat stress, insects, and more. Be prepared with summer heat protection gear! Dehydration and heat stress are legitimate concerns of the working world that can cause decreases in performance and efficiency, as well as an increase in the likelihood for injury. Employers, safety managers, and employees all want to work safely while maximizing productivity. Each person wants to prevent accidents or injury at all cost, and to do so it is critical to know the symptoms of dehydration. This white paper examines dehydration, dehydration-caused illness and injury, and the risks associated with operating while dehydrated.