BACK TO CATEGORIES Photo ID: 1414 (Click photo to view original size.) Category: Silica Hazard: Overexposure to silica Standard Violated: 1919.134(d)(1)(iii) 1926.55(a) 1926.55(b) Corrective Action: Air sampling pumps and pump calibration equipment was purchased and personnel air monitoring for silica was performed. Employer engineered and implemented a local exhaust system for the portable saws used by employees to cut reglets in the exterior walls of the concrete building and limited cutting time to 4 hours/day. Description: The photo shows two employees (wearing respirators) working from a man-lift. One of the employees is using a side-grinder saw to cut reglets (slits) in the exterior of a concrete building, while the other one is spraying water on the saw blade to reduce the level of airborne dust. Both employees were overexposed to silica.