For over two decades, DRC provides environmental compliance and restoration services, primarily, for local and Federal government clients. Under multiple, 5-year IDIQ prime contracts with the Federal Highway Administration (FHWA), the Naval Facilities Engineering Command (NAVFAC), Naval Facilities Engineering Service Command (NFESC), Bureau of Reclamation, Mid-Pacific Region, and the U. S. Army Corps of Engineers, Los Angeles and Sacramento Districts, DRC has completed hundreds of projects for our federal clients. Our large scale project portfolio began with full Environmental Impact Statements (EIS) for the Federal Highway Administration (FHWA), California Forest Highway 137, Wentworth Springs road, California Forest Highway 105, Marysville Road, Arroyo Seco Road Project, Replacement of Arroyo Seco/Piney Creek Bridges, EIS for FHWA Forest Highway 134, Blue Lakes Road and several others within the FHWA Central Federal Lands area of responsibility.

For the U. S. Army Corps of Engineers, a DRC led team completed the Sacramento River Bank Protection Project; Threatened and Endangered Species, Essential Fish Habitat Compensation Plan, the Standardized Assessment Methodology project (SAM) and Comprehensive Monitoring Plan (CMP). We completed numerous other projects including all aspects of environmental studies, evaluations, and documentation as required by the National Environmental Policy Act (NEPA), its implementing regulations, and other environmental protection legislation, including but not limited to the Endangered Species Act, the Clean Air Act, the Clean Water Act, and the National Historic Preservation Act. DRC services also include preparation of environmental documents pursuant to the California Environmental Quality Act (CEQA) and its implementing guidance performance of technical review of similar documents prepared by others, and development of natural resource restoration. Also for the Corps of Engineers, Los Angeles District, DRC recently completed a impact report for the historic gate testing program at the Seven Oaks Dam project.