Rethinking Waste… everything from waste management to resource recovery. CEC provides consulting engineering services for the management, treatment, and disposal of a broad range of wastes, including municipal, construction/demolition, residual, hazardous, and utility. Services include site selection, mergers and acquisitions, hydrogeologic investigations, design and permitting, construction specifications, construction quality assurance, environmental monitoring and compliance, operations and maintenance, landfill gas management, leachate treatment, and renewable energy.