Regulators found five safety violations after a 23-year-old worker died earlier this year at Michael Foods Inc.'s operation in Wakefield.
The Labor Department has proposed fining the Minnetonka, Minnesota, based food company $30,900 for violations found after the June 19 death.
The worker who died was taking samples inside a tanker truck that held egg products and nitrogen before he was found unresponsive.
Regulators say the company didn't take proper precautions for confined spaces and didn't properly train employees on hazards associated with nitrogen.
Company officials declined comment Tuesday because they're still reviewing OSHA's report.
Michael Foods runs five chicken farms in Nebraska for egg production at the Wakefield plant. The company makes a variety of egg, potato and dairy products. Its brands include Papetti's, Crystal Farms and Simply Potatoes.