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

29 CFR 1910.1026(c): The employer did not ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA): (a)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/1/11, Hill Air Force Base did not ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). 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 ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). 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 ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). One employee painted aircraft parts in Building 220. 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 0.1382 mg/m3 as an 8 hour TWA. This is 27.64 times the PEL. Air monitoring was conducted for 245 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 ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). 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. (e)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/2/11, Hill Air Force Base did not ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). 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. (f)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/2/11, Hill Air Force Base did not ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). 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. (g)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/2/11, Hill Air Force Base did not ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). 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. (h)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/2/11, Hill Air Force Base did not ensure that no employee was exposed toan airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). 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. (i)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/3/11, Hill Air Force Base did not ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). One employee abrasively blasted aircraft parts in Building 507J4. 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 0.2670 mg/m3 as an 8 hour TWA. This is 53.40 times the PEL. Air monitoring was conducted for 374 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 ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). 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. (k)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On 3/3/11, Hill Air Force Base did not ensure that no employee was exposed to an airborne concentration of chromium (VI) in excess of five micrograms per cubic meter of air (5ug/m3), calculated as an eight-hour time-weighted average (TWA). 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 hourTWA. 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").-Certification