published by the Detroit Free Press in June 2010, they reported, "For the past six months, a rain of mysterious sparkly dust of unknown origin has landed on their homes and gardens. Odd odors and clouds of dark particles float overhead." This dust pollution has been shown to contain high levels of harmful metals, such as lead, that can be harmful to the health of long-term residents. Even the soil may be unsuitable for growing gardens. The Detroit Free Press stated that the 48217 ZIP Code—occupied solely by Boynton and Oakwood Heights—is "Michigan's most polluted [ZIP Code], according to analysis by environmental scientists from the University of Michigan." Halting the growing industries could discourage job growth, and the state continues to issue permits for heavy industries. Industries comply with both state and federal regulations. However, the number of industries proximate to the neighborhoods has a cumulative effect. Heavy traffic and railroads have also increased air pollution, as do numerous other large industries outside of the neighborhoods. Among these industries, the Detroit Wastewater Treatment Plant on the other side of the river and the U.S. Steel facility on Zug Island in the city of River Rouge further add to the poor air quality in the area. Marathon Petroleum Corporation The largest of these industries is the Marathon Petroleum Company LP refinery located at 301 South Fort Street in Oakwood Heights. The facility was originally built in 1930 by the Aurora Gasoline Company. Today, the expanded facility is the only petroleum refinery in Michigan, and it has a capacity of 140,000 barrels per day and around 540 employees. The refinery received the Energy Star Award in 2007 and 2008 from the Environmental Protection Agency for reducing energy usage and protecting the environment through energy efficiency. The refinery has added green space around its facility, although it is still viewed negatively by the surrounding communities. The Michigan Department of Environmental Quality has issued 13 violations to the facility since 2013 and at least three fines, especially after a massive cloud of burned petroleum coke blanketed the area and blew into neighboring Windsor on July 27, 2013. In February 2019, a malfunctioning flare from the facility released "horrific, stomach churning odors" that forced some residents to stay indoors. In response to the growing criticism, Jamal T. Kheiry, communications manager for Marathon, wrote, "Over the past 20 years, we have reduced our emissions more than