OSHA has inspected Yesco LLC 4 times in Colorado since 2005.
The latest one began on Jan 22, 2021 as a planned inspection, in Denver.
Those inspections ended with 10 citation items: 9 serious and 1 other-than-serious.
Penalties were first proposed at $23,872 and now stand at $16,385, 31% lower after settlements or reviews.
Belts, pulleys and power-transmission parts comes up most often in these citations: 2 items under 1910.219.
How that compares: the median penalty per cited inspection for manufacturing employers since 2015 is $3,600, and Yesco LLC averages $5,462 (3 cited inspections).
Yesco LLC also files yearly injury logs with OSHA, summarized below.
It reported 2 severe injuries to OSHA since 2015.
Citation items per year, by inspection date.
Colorado · latest 90 days of OSHA records
136employers cited
Get notified the morning OSHA posts each new citation in Colorado: the employer, the site address, the rules broken and the penalty.
Incident on Mar 2, 2017: Employee is shocked by arc flash from faulty milliamp meter
At 11:45 a.m. on March 2, 2017, Employee #1, employed by a sign manufacturer, was working with a neon sign. He was bombarding a piece of neon sign tubing with electricity. The milliamp meter was not registering. Employee #1 tapped it with his hand in an attempt to get the analog mechanical needle to unstick and indicate the amperage. The meter faulted (shorted) and caused an electric arc flash of approximately 10,000 volts or 300 milliamps. Employee #1 received an electric shock and fell to the ground. Emergency services were called, and Employee #1 was transported to the hospital. He was admitted and treated for the electric shock and abrasions from the fall.
From the Form 300A summaries employers file with OSHA each year. Rate = recordable cases per 100 full-time workers.
In 2025, the Denver site logged 4 recordable injuries or illnesses among about 40 workers: 10.4 per 100 full-time workers, against a median of 2.5 for its industry. Those cases cost 150 days away from work.
Site and year
Workers
Cases
Days-away cases
Rate
Industry median
YESCO Denver CO
Denver · 2025
40
4
2
10.4
2.5
Severe injury reports
Employers must report any work-related amputation, in-patient hospitalization or loss of an eye to OSHA within 24 hours. 2 reports on file.
Mar 2, 2017, Denver: Hospitalization · electrical burns, unspecified · hand(s) and arm(s), unspecified
An employee was making neon signs. He was glass pulling, attained a vacuum in the tube, and pumped the tube with neon. The employee was charging the sign with electricity to check the level of illumination. The employee was trying to attain 300 milliamps in the tube. During bombarding, the milliamp meter malfunctioned and the employee tried to troubleshoot. An arc flash occurred and the employee…
At 6:30AM on 10/12/16, a crane truck was being setup to load a sign and the truck's outriggers were being setup to stabilize the truck. The injured employee was on the passenger back-side of the truck holding the man basket in place so that the swivel of the basket would not come in contact with tubing on the crane. As he was holding the crane basket, the back outrigger came down and crushed his…
The rules behind these citations
Current text from the Code of Federal Regulations. Some citations were issued under older wording.
29 CFR 1910.132 · Personal protective equipment, general requirements
29 CFR 1910.132(a)
(a) Application. Protective equipment, including personal protective equipment for eyes, face, head, and extremities, protective clothing, respiratory devices, and protective shields and barriers, shall be provided, used, and maintained in a sanitary and reliable condition wherever it is necessary by reason of hazards of processes or environment, chemical hazards, radiological hazards, or mechanical irritants encountered in a manner capable of causing injury or impairment in the function of any part of the body through absorption, inhalation or physical contact.
29 CFR 1910.132(d)(2)
(2) The employer shall verify that the required workplace hazard assessment has been performed through a written certification that identifies the workplace evaluated; the person certifying that the evaluation has been performed; the date(s) of the hazard assessment; and, which identifies the document as a certification of hazard assessment.
(ii) Lockout devices and tagout devices shall be singularly identified; shall be the only devices(s) used for controlling energy; shall not be used for other purposes; and shall meet the following requirements:
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Source: U.S. Department of Labor, OSHA enforcement data. A citation is OSHA's allegation; employers can contest it, and the status column shows where each item stands. Something wrong on this page? Tell us.