Text For Citation: 01 Item/Group: 016B Hazard: CHEMNEP

29 CFR 1910.1026(f)(1)(i): The employer did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL: (a)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/1/11, Hill Air Force Base did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL. One employee sanded aircraft parts in Building 265. The primer contained strontium chromate. This process generated chromium (VI) dust. On 3/1/11 one employee was exposed to chromium (VI) at a concentration greater than the 8 hour Time Weighted Average (TWA) Permissible Exposure Limit (PEL) of 0.005 mg/m3. The employee was exposed to chromium (VI) at a concentration of 0.0074 mg/m3 as an 8 hour TWA. This is 1.47 times the PEL. Air monitoring was conducted for 382 minutes. (b)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/1/11, Hill Air Force Base did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL. One employee sanded aircraft parts in Building 238Q1. The primer contained strontium chromate. This process generated chromium (VI) dust. On 3/1/11 one employee was exposed to chromium (VI) at a concentration greater than the 8 hour Time Weighted Average (TWA) Permissible Exposure Limit (PEL) of 0.005 mg/m3. The employee was exposed to chromium (VI) at a concentration of 0.0664 mg/m3 as an 8 hour TWA. This is 13.28 times the PEL. Air monitoring was conducted for 408 minutes. (c)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/2/11, Hill Air Force Base did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL. One employee painted aircraft parts in Building 507. The primer contained strontium chromate. This process generated chromium (VI) aerosol. On 3/2/11 one employee was exposed to chromium (VI) at a concentration greater than the 8 hour Time Weighted Average (TWA) Permissible Exposure Limit (PEL) of 0.005 mg/m3. The employee was exposed to chromium (VI) at a concentration of 0.0310 mg/m3 as an 8 hour TWA. This is 6.19 times the PEL. Air monitoring was conducted for 359 minutes. (d)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/2/11, Hill Air Force Base did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL. One employee abrasively blasted aircraft parts in Building 220. The primer contained strontium chromate. This process generated chromium (VI) dust. On 3/2/11 one employee was exposed to chromium (VI) at a concentration greater than the 8 hour Time Weighted Average (TWA)Permissible Exposure Limit (PEL) of 0.005 mg/m3. The employee was exposed to chromium (VI) at a concentration of 0.0131 mg/m3 as an 8 hour TWA. This is 2.61 times the PEL. Air monitoring was conducted for 301 minutes. (e)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/2/11, Hill Air Force Base did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL. One employee abrasively blasted aircraft parts in Building 220. The primer contained strontium chromate. This process generated chromium (VI) dust. On 3/2/11 one employee was exposed to chromium (VI) at a concentration greater than the 8 hour Time Weighted Average (TWA) Permissible Exposure Limit (PEL) of 0.005 mg/m3. The employee was exposed to chromium (VI) at a concentration of 0.0129 mg/m3 as an 8 hour TWA. This is 2.59 times the PEL. Air monitoring was conducted for 228 minutes. (f)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/2/11, Hill Air Force Base did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL. One employee painted trailer parts in Building 838. The primer contained strontium chromate. This process generated chromium (VI) aerosol. On 3/2/11 one employee was exposed to chromium (VI) at a concentration greater than the 8 hour Time Weighted Average (TWA) Permissible Exposure Limit (PEL) of 0.005 mg/m3. The employee was exposed to chromium (VI) at a concentration of 0.0067 mg/m3 as an 8 hour TWA. This is 1.33 times the PEL. Air monitoring was conducted for 395 minutes. (g)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/2/11, Hill Air Force Base did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL. One employee painted trailer parts in Building 838. The primer contained strontium chromate. This process generated chromium (VI) aerosol. On 3/2/11 one employee was exposed to chromium (VI) at a concentration greater than the 8 hour Time Weighted Average (TWA) Permissible Exposure Limit (PEL) of 0.005 mg/m3. The employee was exposed to chromium (VI) at a concentration of 0.0074 mg/m3 as an 8 hour TWA. This is 1.47 times the PEL. Air monitoring was conducted for 298 minutes. (h)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/3/11, Hill Air Force Base did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL. One employee abrasively blasted aircraft parts in Building 507J4. The primer contained strontium chromate. This process generatedchromium (VI) dust. On 3/3/11 one employee was exposed to chromium (VI) at a concentration greater than the 8 hour Time Weighted Average (TWA) Permissible Exposure Limit (PEL) of 0.005 mg/m3. The employee was exposed to chromium (VI) at a concentration of 0.2670 mg/m3 as an 8 hour TWA. This is 53.40 times the PEL. Air monitoring was conducted for 374 minutes. (i)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/3/11, Hill Air Force Base did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL. One employee abrasively blasted generators and small parts in Building 843B1. The primer contained strontium chromate. This process generated chromium (VI) dust. On 3/3/11 one employee was exposed to chromium (VI) at a concentration greater than the 8 hour Time Weighted Average (TWA) Permissible Exposure Limit (PEL) of 0.005 mg/m3. The employee was exposed to chromium (VI) at a concentration of 0.0922 mg/m3 as an 8 hour TWA. This is 18.44 times the PEL. Air monitoring was conducted for 265 minutes. (j)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/3/11, Hill Air Force Base did not implement engineering and work practice controls to reduce and maintain employee exposure to chromium (VI) at or below the PEL. One employee painted generators and small parts in Building 843B1. The primer contained strontium chromate. This process generated chromium (VI) aerosol. On 3/3/11 one employee was exposed to chromium (VI) at a concentration greater than the 8 hour Time Weighted Average (TWA) Permissible Exposure Limit (PEL) of 0.005 mg/m3. The employee was exposed to chromium (VI) at a concentration of 0.0087 mg/m3 as an 8 hour TWA. This is 1.73 times the PEL. Air monitoring was conducted for 393 minutes. Abatement Note: Abatement certification and documentation are required for this item (See enclosed "Sample Abatement-Certification Letter"). Abatement Note: Feasible engineering controls include, but are not limited to: 1.Use of abrasive blasting chamber, i.e., glove box, for small to medium sized parts. 2.Installation of local exhaust ventilation at the point of generation of the air contaminant. 3.Substitution of primer containing strontium chromate with non-hexavalent chromium containing primer. 4.Evaluate large spray and abrasive blasting booths. Determine capture velocities at points of operation. Modify booth ventilation if capture velocity is insufficient to capture aerosol. 5.Modify spraypainting operations such that part to be painted may be rotatedand painter maintains upstream position with related to generation of air contaminant. Abatement Note: Abatement of this item will normally be multi-step as follows: 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 within exposure limits. STEP 1 ABATEMENT DATE (15 DAYS): August 15, 2011 2.Submit to the Area Director a written detailed plan of abatement outlining a schedule for the implementation of engineering and /or administrative measures to control employee exposures to the hazardous substance referenced in this citation. The plan shall include, at a minimum, target dates for the following actions which should be consistent with the dates required by this citation: a.Evaluation of the extent and location of the hazard source; b.Evaluation of control measure options; c.Selection of optimum control measures; d.Determination of control measure design; e.Ordering and delivery of equipment; f.Installation of control measures; g.Training of employees in proper operation and maintenance of newly implemented control measures; and h.Assurance of the effective performance of control measures. All proposed control measures shall be evaluated for each particular use by a competent Industrial Hygienist or other technically qualified person. Thirty day progress reports are required during the abatement period. The progress report must identify the action taken to achieve abatement and the date the action was taken. STEP 2 ABATEMENT DATE (60 DAYS): September 29, 2011 3.Abatement will be completed by the implementation of feasible engineering and/or administrative controls and upon verification of their effectiveness in achieving compliance. STEP 3 ABATEMENT DATE (120 DAYS): November 28, 2011