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NOTICE: This is an OSHA Archive Document, and no longer represents OSHA Policy. It is presented here as historical content, for research and review purposes only.

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U.S. Department of Labor
Occupational Safety and Health Administration
Inspection Number:
Inspection Dates:
Issuance Date:
DOL Seal
Citation and Notification of Penalty

Company Name:
ABC Company, Inc.
Inspection Site: Anywhere USA




Citation 2 Item 1d Type of Violation: Willful

29 CFR 1910.1000(c): Employees were exposed to crystalline silica (quartz) and respirable dust, listed in Table Z-3, in excess of the 8-hour Time-Weighted Average concentrations listed for those materials:

a) On June 21, 1996, a sandblaster working in the shed was exposed to respirable dust containing 41.6% crystalline silica (quartz) at a Time-Weighted Average level of 34.983 mg/m3, which is approximately 153 times the Permissible Exposure Limit for crystalline silica of 0.229 mg/m3 and approximately 7 times the Permissible Exposure Limit for respirable dust of 5 mg/m3. The exposure level is derived from two samples collected over a 444-minute period; the calculations include a zero value for the 36 minutes not sampled.

b) On June 21, 1996, a sandblaster working in the shed was exposed to respirable dust containing 44.0% crystalline silica (quartz) at a Time-Weighted Average level of 10.073 mg/m3, which is approximately 46 times the Permissible Exposure Limit for crystalline silica of 0.217 mg/m3 and approximately 2 times the Permissible Exposure Limit for respirable dust of 5 mg/m3. The exposure level is derived from two samples collected over a 427-minute period; the calculations include a zero value for the 53 minutes not sampled.

c) On June 21, 1996, a sandblaster working in the booth was exposed to respirable dust containing 50.7% crystalline silica (quartz) at a Time-Weighted Average level of 28.602 mg/m3, which is approximately 151 times the Permissible Exposure Limit for crystalline silica of 0.190 mg/m3 and approximately 5.7 times the Permissible Exposure Limit for respirable dust of 5 mg/m3. The exposure level is derived from two samples collected over a 478-minute period; the calculations include a zero value for the 2 minutes not sampled.

d) On June 21, 1996, a sandblast assistant working in the vicinity of the shed was exposed to respirable dust containing 46.7% crystalline silica (quartz) at a Time-Weighted Average level of 2.042 mg/m3, which is approximately 10 times the Permissible Exposure Limit for crystalline silica of 0.205 mg/m3. The exposure level is derived from two samples collected over a 458-minute period; the calculations include a zero value for the 22 minutes not sampled.

e) On June 21, 1996, a sandblaster working in the shed in the morning and patching asphalt paths in the afternoon was exposed to respirable dust containing 27.0% crystalline silica (quartz) at a Time-Weighted Average level of 1.033 mg/m3, which is approximately 3 times the Permissible Exposure Limit for crystalline silica of 0.345 mg/m3. The exposure level is derived from two samples collected over a 461-minute period; the calculations include a zero value for the 19 minutes not sampled.


Date By Which Violation Must be Abated: --/--/--


See pages 1 through 3 of this Citation and Notification of Penalty for information on employer and employee rights and responsibilities.

Citation and Notification of Penalty OSHA 2 (Rev. 6/93)
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