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Additional Housekeeping Requirements: <br />5) Air Monitoring Requirements for Activities with an Assigned Respirator APF Listed in Section 4a. <br />X Real-time air monitoring for silica is not required for this project. <br />Aerosol monitor selected for use on this project: <br />Frequency of air sample collection for laboratory analysis: <br />Air samples will be submitted to the following laboratory: <br />6) Medical Surveillance <br />7)Additional Instructions <br />Signatures: <br />Preparer Name Printed Date <br />Preparer Signature <br />Arcadis prohibits dry sweeping or dry brushing where such activity could contribute to employee exposure to <br />respirable crystalline silica unless wet sweeping, HEPA-filtered vacuuming or other methods that minimize the <br />likelihood of exposure are not feasible. <br />Arcadis prohibits use of compressed air to clean clothing or surfaces where such activity could contribute to <br />employee exposure to respirable crystalline silica unless: <br />The compressed air is used in conjunction with a ventilation system that effectively captures the dust cloud <br />created by the compressed air; or <br />No alternative method is feasible (requires concurrence with a CIH). <br />Real-time air monitoring will be conducted during work activities where employees or contractors are <br />exposed to or have the reasonable probability to be exposed to silica dust hazards. Silica air monitoring will <br />include use of an aerosol monitor equipped with a Dorr-Oliver cyclone kit for respirable dust evaluation. <br />Although not permitted to be the sole method of determining employee exposure, real-time air monitoring for <br />silica will be performed in the employee breathing zone (personal air monitoring) and also performed at the <br />perimeter of the work area (exclusion zone boundary). The results will be documented and submitted to <br />Corporate H&S upon completion of the project. Air samples for laboratory analysis will also be required <br />unless excepted from collection by a CIH. <br />When contractors are mixing grout and/or pourign filter pack maintain an upwind position. <br />Elena Strom 4/11/2022 <br />Employees performing work activities where exposure to silica dust is known to be or has a reasonable <br />probability to be above the OSHA 8-Hr TWA action level of 25 µg/m3 will participate in silica medical <br />surveillance in conjunction with their annual HAZWOPER physical. New entrants into the silica medical <br />surveillance program at times when the HAZWOPER physical is not due will coordinate the required <br />surveillance with WorkCare and then maintain the surveillance with their HAZWOPER physical going forward.