GOSHEN, Utah County — Conservation officers with the Utah Division of Wildlife Resources are asking the public to keep away from the old Tintic Mill and will start issuing citations to trespassers.

The Tintic Standard Reduction Mill was built in the 1920s and mostly processed silver. It was added to the National Register of Historic Places in 1978, and then ownership transferred to the division in 1986. The mill is now part of the Goshen Warm Springs Wildlife Management Area.

In 2002, the Utah Department of Environmental Quality sampled the water and soil on the management area and found elevated levels of arsenic and lead. After receiving the results, the division closed the property to the public. Despite posting closure and warning signs over the years, conservation officers continue to see people trespassing on the property near the mine.

“It’s an extremely unsafe area,” DWR Sgt. Sean Spencer said in a statement, adding the entire area is closed to the public, including hunting. “We want everyone to stay safe, and that means staying out of this area.”

According to the Department of Environmental Quality, breathing high levels of arsenic can irritate the throat or lungs, and ingesting very high levels of arsenic can result in death. Exposure to lead can result in increased blood pressure, cardiovascular disease, decreased kidney function and impaired immune systems.

Due to prohibitive costs, the state currently has no plans to remediate the site.