COMPLIANCE INFO_2023 HEATH & SAFETY PLAN

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Project Name: Project Number: Date: Introduction: Task Description: Definitions: Air Monitoring Equipment Required: 201 to 300 150.5 to 250.4 Very Unhealthy 301 to 500 250.4 to 500.4 Hazardous The direct-reading particulate monitor selected to determine PM2.5 levels described above: (1) Must not underestimate employee exposures to wildfire smoke; or (2) May underestimate wildfire smoke exposures, but the project team has obtained information on the possible error of the monitor from the manufacturer or other published literature and has accounted for the error of the monitor when determining exposures to PM2.5 to ensure that employee exposure levels are not underestimated. The monitor selected shall be designed and manufactured to measure the concentration of airborne particle sizes ranging from an aerodynamic diameter of 0.1 micrometers up to and including 2.5 micrometers. If the monitor measures a particle size range beyond these limits, the project team must treat the results as the PM2.5 levels. 101 to 150 35.5 to 55.4 Unhealthy for Sensitive Groups 151 to 200 55.5 to 150.4 Unhealthy 0 to 50 0 to 12 Good 51 to 100 12.1 to 35.4 Moderate Current Air Quality Index (AQI). The method used by the U.S. Environmental Protection Agency (U.S. EPA) to report air quality on a real-time basis. Current AQI is also referred to as the "NowCast," and represents data collected over time periods of varying length in order to reflect present conditions as accurately as possible. PM2.5. Solid particles and liquid droplets suspended in air, known as particulate matter, with an aerodynamic diameter of 2.5 micrometers or smaller The current AQI is divided into six categories as shown in the table below, adapted from Table 2 of Title 40 Code of Federal Regulations, Part 58, Appendix G. Air Quality Index (AQI) Categories for PM2.5 PM2.5 in Microgram per Cubic Meter (µg/m3) Levels of Health Concern Field tasks may include: Site walks, utility locates, drilling, well installation/destruction/development, soil/groundwater sampling. Any task performed outdoors could be subject to smoke inhalation. Smoke Respiratory Protection Plan Forward LandfillManteca, CA 30111270 6/8/2022 This Smoke Respiratory Protection Plan (Plan) has been prepared for use by employees working on projects or project sites in wildfire smoke impacted areas where there is known, forecasted or anticipated smoke concentrations in the breathing zone greater than or equal to a current Air Quality Index (AQI) of 151 for PM2.5 (See definitions below). This plan is designed to meet Cal OSHA regulatory requirements but may be used outside of California as a best practice on project sites with breathing zone smoke issues.