SITE CHARACTERIZATION AND REMEDIATION PROJECT
Empire Mine State Historic Park, Nevada County
This program environmental impact report (PEIR) was prepared for the California Department of Parks and Recreation (DPR) and evaluated the potential environmental effects of a project at Empire Mine State Historic Park (park), located in Nevada County, California. The project evaluated in the PEIR consisted of characterizing, evaluating, and remediating historic mine waste and tailings at the park. In 2006, the California Department of Toxic Substances Control and the Central Valley Regional Water Quality Control Board issued a Joint Cleanup and Abatement Order, Imminent and/or Substantial Endangerment Determination, and Partial Consent Order with DPR and Newmont USA, Ltd., to oversee implementation of the project. Benchmark worked with the various stakeholders to balance differing objectives to ensure the PEIR provided a range of remediation alternatives that met regulatory requirements while ensuring DPR’s objectives of preserving the historic nature of the park were met to the extent feasible.