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20
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Concrete Manufacturing Operation
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Walker Cut Stone Co. Quarry
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Walker Cut Stone Co.
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Ash Grove Quarry
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Natural Storage Inc.
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Quarry Near Chanute
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Lehigh Portland Cement Company
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Skelly Natural Gas Plant
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Clemens Coal Company, Pittsburg
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Volcanic Ash Pit
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Refinery in El Dorado
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Circular Stone Saw
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Bayer Stone Co. Quarry
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Splitting Stone at Bayer Stone Co.
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Bayer Stone Co.
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Concrete Materials Quarry
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Quarry near Moline
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Georgia Pacific Gypsum Plant
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