Dallas Contracting Co., Inc. (website http://www.dallascontracting.com ) was contracted by Essroc Italcementi Group (Essroc) to demolish sixteen (16) cement and sand storage silos, several outlying buildings and also excavate out an area of property containing basements and foundations from former buildings and structures at the Essroc Cement Plant in Martinsburg, West Virginia. A portion of the plant needed to be demolished prior to Essroc