The Goodyear Tire & Rubber Co. has agreed to pay $1.75 million in penalties related to four deaths at the company’s Danville, Virginia, plant over a one-year period, according to a statement issued Friday by the Virginia Department of Labor and Industry.

The company will pay $1 million to the Commonwealth of Virginia and may retain $750,000 to put toward abating hazards at the plant, according to the agreement, which lays out a process for Akron, Ohio-based Goodyear to eliminate workplace hazards identified during eleven inspections during the past 18 months, the statement said.

The Virginia labor department launched an investigation of the Danville plant in April 2016 following three reported deaths at the facility. According to citations posted on the agency’s website, Jeanie Strader died after being caught in machine rollers on Aug. 31, 2015; Kevin Edmonds died when he was pinned between a wall and a pallet containing 3,500 pounds of rubber on March 31, 2016; and Charles Cooper died of burns and drowning after he fell into a pit containing boiling water and oil.

A fourth Goodyear worker death was reported in August 2016 while the plant was already under investigation, the labor department said.

Two non-fatal accidents were also investigated, including a fingertip amputation and a burn incident resulting from steam released from a tire curing press, the Virginia labor department statement said.

Goodyear’s Danville facility covers 56 acres and employs approximately 2,200 workers, according to the state labor department. The plant manufactures aviation and specialty tires, and operates on three shifts. Employees at the plant are represented by Local 831 of the United Steelworkers union.

“We were all deeply saddened by the tragic loss of life at the Goodyear Danville Plant and for the families and co-workers involved,” said Virginia labor department Commissioner C. Ray Davenport. “I can think of no better tribute to those who lost their lives and those who continue to work at the plant than to take the combined resources and efforts of the department, Goodyear and the United Steelworkers to turn the Goodyear Danville Plant into one of the safest and healthiest places to work in the country.”

As part of the settlement, Goodyear will apply to the Virginia Voluntary Protection Program, which encourages companies to exceed U.S. Occupational Safety and Health Administration safety requirements. The agreement requires Goodyear to host safety training sessions under the voluntary program for hundreds of Virginia employers during the next three years, the statement said.

“Goodyear is committed to working in partnership with the Commonwealth of Virginia and the United Steelworkers to continually identify hazards and improve the safety of our Danville plant, with the goal of acceptance in the Commonwealth’s Voluntary Protection Program,” said Greg Kerr, plant manager at Goodyear’s Danville facility.