Aspen is managing a multidisciplinary team preparing design concepts and preliminary engineering for the restoration of a watershed contaminated with mercury (cinnabar) processing waste. The waste material, known as calcines, forms a dense pavement-like material in many parts of the creek and flood plain. In addition, the project includes coordination with state and federal resource agencies and preparation of an EIR. The processing waste accumulated between the the 1840s and 1970s in Jaqcues Gulch, in the historic Almaden mining district of Santa Clara County. The final restoration will remove the dense calcines found in the creek bed and floodplain and restore and revegetate the watershed to natural conditions. The restoration will greatly reduce the amount of mercury entering Almaden Reservoir and, further downstream, the San Francisco Bay.