COMPLIANCE INFO_EW-5 INSTALL PERMIT PACKAGE 2/14/25

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Arcadis Heat Illness Prevention Plan (HIPP) HASP Supplement Access to Shade Continued 5. In situations where it is not safe or feasible to provide shade, the SSO will document in the HASP Supplement the unsafe or unfeasible conditions, and include the steps taken to provide alternative cooling measures equivalent to shade. Unsafe/unfeasible conditions: Other: Monitoring of Weather and Heat Index Table 1. The SSO or designee must check the extended weather forecast in advance of the upcoming work on a weekly basis. Work schedules will be adjusted in advance, taking into consideration whether high temperatures or a heat wave is expected. Accepted weather forecasting resources include webpages "NOAA.gov" or "weather.com" or see the NIOSH Heat Tool (formerly the OSHA Heat Tool app) Alternative Cooling Measures Implemented: X Provide vehicles with working air conditioner to all employees for rest breaks / recovery breaks / meal breaks. Provide temporary or mobile shade structure(s) that are either ventilated or open to air movement (Secure against wind.) Provide a building / permanent structure(s) in close proximity to the work area with a cooling environment via mechanical ventilation or open to air movement which will be used for shade. (Job trailer, pavilion, manufacturing building, etc.) https://www.cdc.gov/niosh/topics/heatstress/heatapp.html 2. Before work starts for the day or shift, the SSO will review the forecasted temperature and humidity for the (exterior) work site and compare conditions against the National Weather Service Heat Index (below) to evaluate the risk level for heat illness. Determination will be made of whether or not workers will be exposed to a combination of temperature and humidity characterized as "Caution", “Extreme Caution”, "Danger" or “Extreme Danger” for heat illnesses. NOTE: It is important to know the temperature at which these warnings occur. When working outdoors see the Heat Index Table in this supplement for Action Level specific instructions for hazard controls. 3. Where state regulations indicate a thermometer or similar on-site monitoring device will be used at the job site to monitor for sudden increases in temperature. The SSO will be responsible for obtaining a thermometer/weather station prior to the start of work and make it readily visible / accessible where it can easily be monitored throughout the course of the day. NOTE: If the temperature is >80°F (26 C) shade structures will be opened and made available to workers. If temperature is >95° F (35 C) additional preventive measures will be implemented. Rev 8 13 June 2019