To qualify for the award a mine must have had at least 30,000 injury- free hours. Three of the winning mines logged more than 10 times this amount without a single injury.
The Cordero Mine in Gillette, Wyo., won in the category for surface coal mines. The Cordero had an injury-free year totalling almost 350,000 hours.
The underground coal winner was the Arclar mine in Harrisburg, Ill.
Asarco’s Sweetwater unit at Bunker, Mo., won for the safest underground metal mine while the New York mine in Tate, Ga., won the underground non-metal prize.
The safest open pit mine was the Du Pont Florida mine with 424,148 injury-free hours, and the safest quarry was the Tarmac aggregate plant , also in Florida.
The Sentinels of Safety award is 63 years old and was established to promote a greater interest in mine safety and to improve accident prevention programs.
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