Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,198,892Inspections Most recent open 2026-09-03 Last loaded 2026-09-07

OSHA Inspection: MARIO CHEN

Programmed Related inspection · Safety discipline

On , OSHA opened a programmed Related safety inspection of MARIO CHEN in 4614 DARKWOODS DR., WENTZVILLE, MO 63385 (NAICS 238160). OSHA activity number 347073876.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.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
MARIO CHEN
Site address
4614 DARKWOODS DR.
City
WENTZVILLE
State
MO
ZIP
63385
Mailing
5639 S KINGSHIGHWAY BLVD., SAINT LOUIS, MO 63109
Inspection type
Programmed Related (I)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
Non-union (B)
Opened
Closing conference
Last modified
Data loaded
NAICS code
238160
Employees
7
Ownership type
Private (A)

4 citations on file for this inspection.

1926.102 A01

Serious Gravity 5 1 instance 2 exposed
Issued
Mar 5, 2024
Abate by
Apr 1, 2024
Penalty
Initial $3,349 · Current $3,349
29 CFR  1926.102(a)(1):Employees did not use eye and face protection equipment when machines or operations presented potential eye or face injury from physical, chemical, or radiation agents:  On 11/1/2023, the employer did not protect employees who were using pneumatic nail guns without the use of eye protection, exposing workers to struck-by hazards at the job site located at 4614 Darkwoods Dr., Wentzville, MO.
Recent events (1)
  • · Z (S) $3349

1926.152 A01

Serious Gravity 5 1 instance 3 exposed
Issued
Mar 5, 2024
Abate by
Apr 1, 2024
Penalty
Initial $2,679 · Current $2,679
29 CFR  1926.152(a)(1): Containers other than approved metal safety cans or DOT approved containers were used for the handling and use of flammable liquids in quantities of 5 gallons or less:  On 11/1/2023, the employer did not ensure gasoline, used in the gas powered air compressor, was transported in an approved metal safety can or DOT approved container to ensure employees were not exposed to chemical hazards and fire hazards during construction operations located at 4614 Darkwoods Dr., in Wentzville, MO.
Recent events (1)
  • · Z (S) $2679

1926.501 B13

Serious Gravity 10 1 instance 3 exposed
Issued
Mar 5, 2024
Abate by
Apr 1, 2024
Penalty
Initial $4,688 · Current $4,688
29 CFR  1926.501(b)(13):Each employee(s) engaged in residential construction activities 6 feet (1.8 m) or more above lower levels were not protected by guardrail systems, safety net system, or personal fall arrest system, nor were employee(s) provided with an alternative fall protection measure under another provision of paragraph 1926.501 (b):  On 11/1/2023, the employer did not protect employees who were engaged in residential roofing operations 6ft (1.8m) or more above lower levels while at the job site located at 4614 Darkwoods Dr., Wentzville, MO. The employees were conducting residential roofing operations and were exposed to the hazard of falling approximately ten (10) feet.
Recent events (1)
  • · Z (S) $4688

1926.1053 B01

Serious Gravity 5 1 instance 3 exposed
Issued
Mar 5, 2024
Abate by
Apr 1, 2024
Penalty
Initial $3,349 · Current $3,349
29 CFR  1926.1053(b)(1): Where portable ladders were used for access to an upper landing surface and the ladder's length allows, the ladder side rails did not extend at least 3 feet (.9 m) above the upper landing surface being accessed:  On or about 10/25/2023, the employer did not ensure portable ladders were constructed and placed so three (3) feet or more were extended above the upper landing at a job site located at 2521 Bear Creak Dr., Wentzville, MO. Workers performing residential construction were exposed to falling approximately ten (10) feet while using a straight ladder to ascend/descend from the ground level to the roof.
Recent events (1)
  • · Z (S) $3349

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). OSHA publishes its own view of this case as inspection number 347073876.

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