"The operators of 10 U.S. mines, including the largest private-sector coal company in the world, have been warned they must improve health and safety conditions or face stricter enforcement and penalties, the federal Mine Safety and Health Administration said Wednesday.
Half the mines are in West Virginia, the nation's second-largest coal producer. One is a lead and zinc mine in Missouri and the rest are coal operations in Kentucky, Indiana and Virginia."
The Associated Press had the story October 7, 2009.
Source: AP, 10/09/2009
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