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

OSHA Inspection: MARK WILLIAMS ENTERPRISES, INC.

Complaint inspection · Health discipline

On , OSHA opened a complaint health inspection of MARK WILLIAMS ENTERPRISES, INC. in 765 SOUTH PIERCE AVENUE, LOUISVILLE, CO 80027 (NAICS 336390). OSHA activity number 346377112.

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employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
765 SOUTH PIERCE AVENUE
City
LOUISVILLE
State
CO
ZIP
80027
Mailing
765 SOUTH PIERCE AVENUE, LOUISVILLE, CO 80027
Inspection type
Complaint (B)
Scope
Partial (B)
Discipline
Health
Advance notice
No
Union status
B
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
336390
Employees
30
Ownership type
A

4 citations on file for this inspection.

1910.212 A01

Serious Gravity 5 1 instance 1 exposed
Issued
Apr 20, 2023
Abate by
May 25, 2023
Penalty
Initial $7,813 · Current $4,688 Reduced
29 CFR 1910.212(a)(1): One or more methods of machine guarding was not provided to protect the operator and other employees in the machine area from hazards such as those created by point of operation, ingoing nip points, rotating parts, flying chips and sparks:  (a) Mark Williams Enterprises, Inc. at 765 South Pierce Avenue in Louisville, CO: On or about December 7, 2022, and at times prior, employees were exposed to crushing and amputation hazards when the chain and sprocket was not guarded on the rotating welder in the drive shaft department.
Recent events (2)
  • — I (S) $4687.8
  • — Z (S) $7813

1910.253 B04 III

Serious Gravity 5 1 instance 1 exposed
Issued
Apr 20, 2023
Abate by
May 25, 2023
Penalty
Initial $6,250 · Current $3,750 Reduced
29 CFR 1910.253(b)(4)(iii): Oxygen cylinders in storage were not separated from fuel-gas cylinders or combustible materials (especially oil or grease), a minimum distance of 20 feet (6.1 m) or by a noncombustible barrier at least 5 feet (1.5 m) high having a fire-resistance rating of at least one-half hour:  (a) Mark Williams Enterprises, Inc. at 765 South Pierce Avenue in Louisville, CO: On or about December 7, 2022, and at times prior, employees were exposed to fire and explosion hazards when an oxygen cylinder was stored next to an acetylene cylinder in the fabrication department.
Recent events (2)
  • — I (S) $3750
  • — Z (S) $6250

1910.1200 F06

Serious Gravity 5 1 instance 4 exposed
Issued
Apr 20, 2023
Abate by
May 25, 2023
Penalty
Initial $9,376 · Current $5,626 Reduced
29 CFR 1910.1200(f)(6): The employer used written materials, such as signs, placards, process sheets, or batch tickets in lieu of affixing labels to individual stationary process containers that failed to identify the container(s) to which they were applicable and did not convey the information required by 29 CFR 1910.1200(f)(5):  (a) Mark Williams Enterprises, Inc. at 765 South Pierce Avenue in Louisville, CO: On or about December 7, 2022, and at times prior, employees were exposed to corrosive and carcinogenic chemicals in the heat treat area, but containers were not labeled with the chemical identity nor general hazards. Hazardous chemicals included: ?	Alchrome 2 ?	E-Kleen SR 148-E ?	Insta-Blak 333
Recent events (2)
  • — I (S) $5625.6
  • — Z (S) $9376

1910.1200 H03

Serious Gravity 5 1 instance 4 exposed
Issued
Apr 20, 2023
Abate by
May 25, 2023
Penalty
Initial $0 · Current $0
29 CFR 1910.1200(h)(3): The employee training did not include the requirements of 29 CFR 1910.1200(h)(3)(i) through (h)(3)(iv):  (a) Mark Williams Enterprises, Inc. at 765 South Pierce Avenue in Louisville, CO: On or about December 7, 2022, and at times prior, employees were exposed to corrosive and carcinogenic chemicals in the heat treat area, but the employer did not ensure they were trained on the specific hazards of the chemicals in their work area. Hazardous chemicals included: ?	Alchrome 2 ?	E-Kleen SR 148-E ?	Insta-Blak 333
Recent events (2)
  • — I (S) $0
  • — Z (S) $0

View Mark Williams Enterprises, INC.'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 346377112.

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