South Lyon — A 54-year-old worker died after he fell into a vat of sulfuric acid at a South Lyon-based steel manufacturing firm in what is being described as a "serious industrial accident."

Daniel Hill was fully submerged in the 10 percent to 12 percent sulfuric acid solution Saturday afternoon as his Michigan Seamless Tube co-workers worked desperately to pull him from the industrial container, burning themselves from the at least 160-degree chemical solution, Fire Chief Robert Vogel said.

"Other employees, co-workers saw him in the tank," Vogel said. "He was completely submerged and was 100 percent covered in burns. The gentleman was trying to get out. They ran and grabbed him and pulled him out."

Roughly 11 hours later, Hill died of chemical burns at 11:30 p.m. Saturday, said Kristin LaMaire, administrative assistant to the Washtenaw County Medical Examiner.

South Lyon police responded to an emergency call at about 12:21 p.m. that day to the manufacturing facility at 400 McMunn St., Police Chief Chris Sovik said. The employees had put Hill under a safety shower, and medics then transported him to the University Hospital in Ann Arbor.

"He was speaking when we were there," Vogel said. "He was walking and talking. Unfortunately, he passed. It was pretty extreme burns."

It was unclear how Hill ended up in the vat and how long it was before he was rescued, he said.

The co-workers who assisted Hill sustained burns to their hands, Vogel said. Medics treated them at the scene.

Neighbors to Hill and his wife, Pamela, called the incident a tragedy. Stephen Kobylarz said the couple had moved from Whitmore Lake to a new house they built in South Lyon in July.

"They are just very nice people, quiet," Kobylarz said. "They just loved their new house and the countryside, the wildlife, the deer. They mentioned they'd seen a coyote. They are just very, very nice people. It was really a shock when I heard about it."

Attempts to contact Hill's family were unsuccessful.

Hill, known as "Moose" among friends, is described as generous, a hard worker and a dog lover in his obituary. He previously served in the Army's motor pool.

He is survived by his wife; children Ashley Fields and Jacquelyn Dean; siblings Yvonne Balliet, Douglas Hill, Carol Haines, Darrell Hill and Donald Hill; and grandchildren Olivia and Connor Field.

Family and friends will gather from 2-8 p.m. Friday at Borek Jennings Funeral Home in Hamburg, and a community farewell is scheduled for 11 a.m. Saturday there. The United Steelworkers Local 1900 also has set up a GoFundMe for the family.

Mark Hommel, a Michigan Seamless spokesman who works in human resources, described Hill as "a valued employee" who was with the company since April 2017. He said the company is conducting a "comprehensive investigation" and is "cooperating fully" with the Michigan Occupational Health and Safety Administration investigation.

Pardeep Toor, public information officer for the Michigan Licensing and Regulatory Affairs Department, said in an emailed statement that MIOSHA's investigation of the incident has begun.

"MIOSHA cannot provide information on an open investigation," he said. "Typically, this type of investigation may take several weeks or months to complete."

Michigan Seamless Tube, one of South Lyon's largest employers, has had seven workplace safety violations since 2012, according to the U.S. Occupational Safety and Health Administration, with fines totaling $93,000.

The state of Michigan fined the company $17,500 for a repeated violation in August of not guarding or protecting six employees from "pinch points," places where people or body parts could be caught in a machine or between equipment.

Regulators found Michigan Seamless Tube had four "serious" violations in 2012. That included four instances of unguarded pinch points exposed to 18 employees resulted in a $35,000 settlement.

Another serious violation related to the company's control of hazardous energy and also resulted in a $35,000 fine.

The final two serious violations included a $2,500 fine for not conducting annual inspections of energy control procedures. Regulators also determined 18 employees did not receive training on hazardous energy sources, resulting in another $2,500 fine.

A failure to log an injury within seven days in 2012 also constituted a $1,000 fine, as well.

In 2014, the state also found the company was not keeping storage areas free from accumulated materials that could cause a fire or explosion or harbor pests. The violation affected 12 employees, though no fine was issued.

Sovik, the police chief, also recalled in 2007 that police were dispatched to the company when an individual was hit with a heavy piece of machinery and died. His name was Kevin Wilson, an operator at the company, according to the United Steelworkers trade union.

The United Steelworkers could not be reached immediately for comment on Saturday's incident.

Michigan Seamless Tube is a wholly owned subsidiary of Hammond, Indiana-based Specialty Steels Works Inc. The company emerged from Chapter 11 bankruptcy in 2017 and renamed from Optima Specialty Steel. It also owns steel manufacturers Niagara LaSalle Corp. in Hammond and Corey Steel Co. in Cicero, Illinois.

bnoble@detroitnews.com

Staff writer James Dickson contributed.