Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,992Inspections Most recent open 2026-07-18 Last loaded 2026-07-22

OSHA Inspection: MASTERSTONE

Referral inspection · Health discipline

On , OSHA opened a referral health inspection of MASTERSTONE in 5295 DTC PKWY, GREENWOOD VILLAGE, CO 80111 (NAICS 327991). OSHA activity number 348220807.

What this inspection record means

OSHA opens inspections for many reasons — routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Establishment
MASTERSTONE
Site address
5295 DTC PKWY
City
GREENWOOD VILLAGE
State
CO
ZIP
80111
Mailing
29 EAST RANCH, WIGGINS, CO 80654
Inspection type
Referral (C)
Scope
Partial (B)
Discipline
Health
Advance notice
No
Union status
B
Opened
Closing conference
Last modified
Data loaded
NAICS code
327991
Employees
2
Ownership type
A

2 citations on file for this inspection.

1926.1153 C01

Serious Gravity 5 1 instance 2 exposed
Issued
Jun 25, 2025
Abate by
Jul 24, 2025
Penalty
Initial $2,837 · Current $2,837

Hazardous substances 9000

29 CFR  1926.1153(c)(1):For each employee engaged in a task identified on Table 1, the employer did not fully and properly implement the engineering controls, work practices, and respiratory protection specified for the task on Table 1, unless the employer assesses and limits the exposure of the employee to respirable crystalline silica in accordance with paragraph (d) of this section:  a.) On or about May 2, 2025, and at times prior, employees were exposed to silica inhalation hazards while grinding on a stone slab outside. The employee was using a hand-held grinder that was not equipped with either an integrated water delivery system or a commercially available shroud and dust collection system, per the engineering and work practice controls specified in Table 1. The employer failed to ensure employees were following Table 1 while shaving off additional slab material using the hand grinder. There was visible dust during the cutting.  Abatement Note: Abatement certification and documentation are required for this item (see enclosed Certification of Corrective Action Worksheet).
Recent events (1)
  • — Z (S) $2837

1926.1153 D01

Serious Gravity 5 1 instance 2 exposed
Issued
Jun 25, 2025
Abate by
Jul 24, 2025
Penalty
Initial $0 · Current $0

Hazardous substances 9000

29 CFR  1926.1153(d)(1): The employer did not ensure that employees were not exposed to an airborne concentration of respirable crystalline silica in excess of 50 ug/m3, calculated as an 8-hour TWA:  a.) On or about May 2, 2025, and at times prior, the employer did not ensure that employees conducting grinding operations on a stone slab were not exposed to respirable crystalline silica in excess of 50 ug/m3.  Abatement Note: Abatement certification and documentation are required for this item (see enclosed Certification of Corrective Action Worksheet).
Recent events (1)
  • — Z (S) $0

View Masterstone's full OSHA safety record →

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 348220807.

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