1986: Anderson begins work on their first “major” project near Yerington, Nevada assisting site remediation of the former Empire Nevada Mine.
Site History: Copper was discovered in the Yerington District in 1865, and operations at this mine site began in 1918 as the Empire Nevada Mine. Anaconda purchased the mine in 1941. From approximately 1952 to 1978, Anaconda conducted mining and milling operations at the open-pit, low-grade copper mine. Anaconda mining operations generated approximately 360 million tons of ore and debris from the open pit and 15 million tons of overburden resulting in 400 acres of waste rock placed south of the Pit, 900 acres of contaminated tailings, and 300 acres of disposal ponds. Source: US EPA Superfund Region 9 Photo: “Anaconda Copper Mine Nevada” by Kelapstick.