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Universal Health & Safety Plan For use on all high-risk,industrial and HAZWOPER projects Department of Toxic Substances Control Equipment decontamination will be performed over a bucket and/or tarp to prevent decontamination water from flowing onto the ground surface. Decontamination water will be handled as described in the workplan. Equipment Decontamination Procedures Type Equipment Decontamination Solution Procedure Drilling Augers Alconox Wet—Alconox Wash and Water Rinse Drilling crown and casing Alconox Wet—Alconox Wash and Water Rinse Interprobe and pump Alconox Wet—Alconox Wash and Water Rinse 2.9 Air Monitoring Depending on the contaminants of concern, the products used to perform the work, or third-party operations,sampling or monitoring may be required within the work area on site to detect the presence and relative levels of chemical or particulate hazards.The data collected throughout monitoring shall be used to determine the appropriate levels of PPE. Monitoring shall be in accordance with Exposure Monitoring Procedure S3AM-127-PR and specified in the work permit and/or THA for the tasks. Key elements of the procedure include: • Calibration of monitoring equipment and/or daily bump tests to verify calibrations and confirm alarm function. • Documenting the results of calibration and/or daily bump tests. • Documenting the results of monitoring activities. • Personal monitoring and result evaluation must be directed by a Certified Industrial Hygienist or Certified Safety Professional. 2.9.1 Real Time Exposure Measurements/Equipment Monitoring shall be performed within the work area on site to detect the presence and relative levels of toxic substances.The data collected throughout monitoring shall be used to determine the appropriate levels of PPE. Monitoring shall be conducted as specified in the work permit and THA as work is performed. All instrumentation needs to be rated intrinsically safe to prevent fire or explosion. Instrument Manufacturer/Model Substances Detected 0 Photo Ionization Detector(PID) ■ RAE Systems mini-RAE ■ Petroleum hydrocarbons ■ Photovac Microtip ■ Organic Solvents ■ HNu Model Hnu(min. 10.6 eV bulb) ■ Benzene with specific separation to be 0 Multi or 4 Gas Detectors ■ RAE Systems Multi-RAE ■ Lower Explosive Limit ■ Oxygen ■ Carbon Monoxide ■ Hydrogen Sulfide 0 Colorimetric tubes ■ RAE Hand Pump(LP-1200) ■ Vinyl Chloride Colorimetric tube range 0.1 -20 ppmv ©AECOM Restricted Universal Heath and Safety Plan Template(S4(DSC)AM-209-FM-C) 7 Revision 12 September 9,2021 PRINTED COPIES ARE UNCONTROLLED.CONTROLLED COPY IS AVAILABLE ON COMPANY INTRANET.