Topic - John H. Talley

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  • Mr. Brezinski's work "showed a basis for recognizing the relationships between rock types associated with various geologic formations and the development of what are called cover-collapse sinkholes," said award committee member John H. Talley, director of the Delaware Geological Survey. "These sinkholes pose a serious threat to infrastructure such as homes, roads, railroads, sewer and water systems, drainage ways [and] property."

    Sinkhole study to educate builders →

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