Write a toolbox talk on working in extremely hot weather in a surface mine

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Oregon Occupational Safety and Health Division Oregon Administrative Rules AO 1-2025 Division 2 ## Appendix A to [redacted phone] - Mandatory Information for Heat Illness Prevention To protect the health and safety of employees from heat-related illnesses, employers should consider using the resources in this appendix. Please note that some resources may use temperatures in Celsius instead of Fahrenheit. To convert to degrees Fahrenheit, use this formula: Fahrenheit (°F) = (Celsius x 1.8) + 32 - 1. Most heat-related illnesses affect workers who do strenuous physical activity. When workers engage in intense work, their bodies create heat. This "metabolic" heat combines with environmental heat (from temperature, sunlight, humidity, etc.) so workers' core temperature can rise to dangerous levels. To prevent a hazardous combination of environmental and metabolic heat, employers should be aware of workers' activity level. Workload can be classified as rest, light, moderate, heavy, or very heavy. - · Light: Sitting or standing with minimal arm and leg work. - · Moderate: Continuous modest intensity, such as light pushing/pulling or normal walking. - · Heavy: Intense upper body work such as carrying loads or sawing. - · Very heavy: Intense activity at an almost maximum pace.

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## Division 2 Repealed AR 242/2022 s106. ## Division 3 Underground Mines ## Application 680 This Division applies to underground mines. ## Mine Workers ## Supervision 683 An employer must ensure that workers working underground are supervised by a supervisor who is an underground mine manager or an underground mine foreman. AR 191/2021 s683;242/2022 ## 684 Repealed AR 242/2022 s112. ## Underground mine manager 685 (1) An employer must appoint an underground mine manager to supervise workers and oversee daily activities at a mine or mine site. 685 (2) An employer may appoint an underground mine foreman as a temporary underground mine manager. AR 191/2021 s685;242/2022 ## Combined operations 686 An employer must ensure that surface mining operations and underground mining operations are coordinated if - (a) surface mining operations and underground mining operations take place simultaneously, and - (b) those operations are in such proximity that mining in one may affect the health and safety of workers in the other. AR 191/2021 s686;242/2022 AR 191/2021 s680;242/2022 ## Annual plan - 681 An employer must ensure that a mine plan required by section 533 is certified by a professional engineer, is submitted to a Director before the last day in September in each year and includes - (a) a proposed underground operations working plan for the next year of operation, - (b) a ventilation plan for the next year of operation, and - (c) the locations of all firefighting pipelines, water control valves, fire stations and fire cabinets. AR 191/2021 s681;242/2022 - 682 Repealed AR 242/2022 s110.

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J Division 2 AO 1-2025 Oregon Administrative Rules Oregon Occupational Safety and Health Division - (C) Employees who work from home are subject only to the training requirements in sections (9) and (10). - (2) Definitions. - (a) Acclimatization - Temporary adaptation of the body to work in the heat that occurs gradually when a person is exposed to it. Acclimatization peaks in most people within seven to fourteen days of regular work for at least two hours per day in the heat. This time frame applies to fit individuals with no underlying medical conditions. - (b) Drinking water - Potable water that is suitable to drink and that is cool (66 °F -77 °F) or cold (35 °F -65 °F). - (c) Heat Illnesses - Medical conditions resulting from the body's inability to cope with a particular heat load, and includes heat cramps, heat exhaustion, heat syncope, and heat stroke. - (d) Shade - Blockage of direct sunlight is shade. One indicator that blockage is sufficient is when objects do not cast a shadow in the area of blocked sunlight. Shade is not sufficient when heat in the area of shade defeats the purpose of shade, which is to allow the body to cool. For example, a car sitting in the sun does not provide acceptable shade to a person inside it, unless the car is running with working air conditioning. Shade may be provided by any natural or artificial means that does not expose employees to unsafe or unhealthy conditions, and that does not deter or discourage access or use. - (e) Temperature-controlled environment -an indoor setting where the temperature is maintained with a mechanical cooling system. - (3) Access to shade. Establish and maintain one or more shade areas that are immediately and readily available to exposed employees that are outdoors when the heat index in the work area equals or exceeds 80 degrees Fahrenheit. The shade areas must meet the following criteria: - (a) The shade area must either be open to the outside air (at least three open sides) or provide m…

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Oregon Occupational Safety and Health Division Oregon Administrative Rules AO 1-2025 Division 2 - (b) The employer's procedures for complying with the requirements of this standard, including, but not limited to, the employer's responsibility to provide water, heat index information (including the risks to experiencing a heat-related illness), shade, preventative rest breaks, and access to first aid, as well as how employees can exercise their rights under this standard without fear of retaliation; - (c) The importance of frequent consumption of small quantities of water, up to 32 ounces per hour, when the work environment is hot and employees are likely to be sweating more than usual in the performance of their duties; - (d) The concept, importance, and methods of the acclimatization plan pursuant to the employer's procedures under section (8); - (e) The different types of heat illness, the common signs and symptoms of heat illness, and the appropriate first aid and emergency response to the different types of heat illness, including how heat illness may progress quickly from mild signs and symptoms to a serious and life-threatening condition; - (f) The importance for employees to immediately report to the employer, directly or through the employee's supervisor, signs and symptoms of heat illness in themselves or in others; and - (g) The effects of nonoccupational factors (drugs, alcohol, obesity, etc.) on tolerance to occupational heat stress. - (10) Training documentation. Verify compliance with section (9) by preparing and maintaining written or electronic training records that can be provided to Oregon OSHA upon request. Such records must contain the name or identification of each employee trained, the date(s) of the training, and the name of the person who conducted the training. The most recent annual training record for each affected employee must be maintained. Statutory/Other Authority: ORS 654.025(2), 654.035 & 656.726(4) Statutes Implemented: O…