Naturally Occurring Asbestos Information

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In late November of 2013, NDOT was made aware of the potential presence of naturally occurring asbestos (NOA) in the Eldorado Valley by a University of Nevada, Las Vegas (UNLV) research article. All construction activities were halted until the extent and composition of NOA could be characterized for the entire I-11 Boulder City Bypass project area and a re-evaluation of the 2005 Final Environmental Impact Statement completed. Field investigations consisting of soil and rock testing, ambient air testing and limited personal air sampling were conducted to help better understand the nature and extent of NOA within the BCB area and to support the development of appropriate construction mitigation measures.

I-11 Boulder City Bypass 2014 FEIS Re-evaluation

October 21, 2014 Public Meeting

Naturally Occurring Asbestos Reports

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