Text For Citation: 01 Item/Group: 005A Hazard:

29 CFR 1910.1053(c):The employer did not ensure that no employee was exposed to an airborne concentration of respirable crystalline silica in excess of 50 ug/m3, calculated as an 8-hour TWA: The employer did not ensure that employees were not exposed to an airborne concentration of respirable crystalline silica in excess of50 ug/m3 as listed below. a)Production area : A fabricator that grinded and polished stone countertops containing silica was exposed to an airborne concentration of silica at an 8 hour time-weighted average of 149 micrograms per cubic meter (ug/m3), which was 2.98 times the permissible exposure limit (PEL) of 50 ug/m3. The sampling was conducted for 476 minutes during one shift on 11/20/24. Zero exposure was assumed for the unsampled period of time. b)Bridge Saw production area : A fabricator that operated a bridge saw to cut stone countertops containing silica was exposed to an airborne concentration of silica at an 8 hour time-weighted average of 64 micrograms per cubic meter (ug/m3), which was 1.27 times the permissible exposure limit (PEL) of 50 ug/m3. The sampling was conducted for 477 minutes during one shift on 11/20/24. Zero exposure was assumed for the unsampled period of time. NOTE: IN ADDITION TO ABATEMENT CERTIFICATION, THE EMPLOYER IS REQUIRED TO SUBMIT ABATEMENT DOCUMENTATION FOR THIS ITEM. FAILURE TO COMPLY WILL RESULT IN AN ADDITIONAL PENALTY OF $1000.00 IN ACCORDANCE WITH 29 CFR 1903.19