San Emidio Quarry Expansion Project Final EIR Certified by Kern County. October 15, 2016. Benchmark Resources assisted Kern County with an environmental review of the San Emidio Quarry Expansion Project, culminating in the preparation of a final environmental impact report (EIR). Benchmark Resources assisted the County with all aspects of environmental review for the project, including peer review of application documents and preparation of a detailed initial study checklist, the draft and final EIRs, and the California Environmental Quality [...]