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

29 CFR 1910.1000(e): Feasible administrative or engineering controls were not determined and implemented for the employees including the abrasive blaster to achieve compliance with the limits prescribed in 29 CFR 1910.1000(a) through (d): For the employees including, but not limited to , those as described in Citation 1, Item 1(a) and Citation 1, Item1(b). a) On or about October 15, 2018, the abrasive blaster working with aluminum oxide shot was exposed to respirable dust at a time-weighted average (TWA) of 14.778 mg/m3 which is approximately 2.956 times the permissible exposure limit (PEL) of 5.0 mg/m3, for 138 minutes. Zero exposure is assumed for the time not sampled. b) On or about October 15, 2018, the abrasive blaster working with aluminum oxide shot was exposed to total dust at a time-weighted average (TWA) of 170.051 mg/m3 which is approximately 11.337 times the permissible exposure limit (PEL) of 15.0 mg/m3, for 138 minutes. Zero exposure is assumed for the time not sampled. General methods of control applicable in these circumstances include, but are not limited to, the following: 1) Installing a downdraft exhaust system at the manual abrasive blasting booth that averages 80 fpm over the entire floor. 2) Installing a cross ventilation system at the manual abrasive blasting booth that averages 100 fpm velocity over the vertical cross section of the room. 3) Administratively rotate employees to insure that exposures are below the allowable exposure limits for all air contaminants involved. 4) Provide adequate respiratory protection to prohibit abrasive blasters from inhaling the dust. STEP 1: Effective respiratory protection shall be provided and used by exposed employees as an interim protective measure until feasible engineering and/or administrative controls can be implemented, or whenever such controls fail to reduce employee exposure to the respirable dust permissible exposure limits. Abatement period by (5 working days) STEP 2: Submit to the area director a written, detail plan of abatement outlining a schedule for the implementation of engineering and/or administrative measure to control employee exposure to hazardous substances as referenced in this citation. This plan shall include, at a minimum, target dates for the following action which must be consistent with the abatement dates required by this citation. Abatement period by (15 working days) 1) Evaluation of engineering/administrative control options; 2) Selection of optimum control methods and completion of design; 3) Procurement, installation and operation of selected control measures; and 4) Testing and acceptance or modification/redesign of controls. STEP 3: Abatement shall have been completed by the implementation of feasible engineering and/or administrative controls upon verification of their effectiveness in achieving compliance. Abatement period by (30 working days)