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Cleanup[ edit ] Currently production still occurs in a third area, the Viburnum Trend, in southeastern Missouri. Mining and milling of ore produced more than million tons of wastes in the tri-state area and about million chate of wastes in the Old Lead Belt.
More than 75 percent of this waste has been removed, with some portion of it used over the years. Today, approximately million tons of chat remain in the tri-state area.
The EPAthe states of Oklahoma, Kansas, and Missouri, local communities, and private companies continue to work together in implementing and monitoring response chata that reduce or remove potential adverse impacts posed by remaining mine wastes contaminated with lead, zinc, cadmiumand other metals. Ore processing[ edit ] Ore production consisted of crushing and grinding the rock to standard sizes and separating the ore. Ore processing was accomplished in either a dry gravity separation saguenay girl live chat through a wet washing or flotation separation.
Tailings generally contain higher concentrations of heavy metals and missluri present a higher risk to human health and the environment through direct contact. Intermingled material such as sands measure 0.
Uses[ edit ] Although poisonous, chat can be used to improve traction on snow-covered ro; as gravel; and as construction aggregateprincipally for railroad ballast, highway construction, and concrete production.