Text For Citation: 01 Item/Group: 001A Hazard:

29 CFR 1910.95(c)(1): A continuing, effective hearing conservation program as described in 29 CFR 1910.95(c) through (n) was not instituted when employees noise exposures equaled or exceeded an 8 hour Time Weighted Average (TWA) sound level of 85 dBA: (a) On or about July 12, 2017, an employee working in the block plant operating the block machine was exposed to continuous noise levels at 221.4% of the permissible daily noise exposure or an equivalent sound level of approximately 95.7 dBA (8-hour time-weighted average sound level of 85 dBA) during the 204 minute sampling period; exposure calculations included a zero increment for the 276 minutes not sampled. (b)On or about July 12, 2017, an employee working in the block plant operating a fork truck was exposed to continuous noise levels at 68.8% of the permissible daily noise exposure an equivalent sound level of approximately 87.3 dBA (8-hour time-weighted average sound level of 85dBA) during the 170 minute sampling period; exposure calculations included a zero increment for the 310 minutes not sampled. (c)On or about July 12, 2017, an employee working in the mixing room operating an air chisel to clean the mixer was exposed to continuous noise levels at 172.7% of the permissible daily noise exposure an equivalent sound level of approximately 93.9 dBA (8-hour time-weighted average sound level of 85dBA) during the 111 minute sampling period; exposure calculations included a zero increment for the 369 minutes not sampled.