Williams County Landfill: Operational Support, Final Cover, and Cell Design


Republic Services, Inc.


Bryan, OH

CEC Services

  • Groundwater Monitoring and Assessment
  • NPDES Permitting Support
  • Stormwater Sampling and Permitting
  • Air Compliance and Permitting
  • Construction Quality Assurance
  • Landfill Design and Permitting
  • Solid Waste Facility Operations Audits and Consulting

Owner Objective

Republic Services, Inc. (Republic) is the second largest provider of non-hazardous solid waste collection, transfer, disposal, recycling, and energy services in the United States, as measured by revenue.

CEC has provided compliance monitoring (groundwater, explosive gas, and NPDES stormwater) since 2011, and took over engineering assistance in late 2015. Republic’s primary objective was to defer and/or reduce capital costs by delaying cell construction. Secondary objectives included gaining access to remote remaining airspace and abating historic overfills.

Landfill phasing plans called for construction of an interior access ramp to facilitate future separatory liner construction and subsequent waste filling over an approximately 27-acre area of historic waste. This work was scheduled to precede capping approximately five acres of exterior slopes nearly filled to grade.

CEC Approach

CEC prepared a Permit-To-Install (PTI) Alteration Request in June 2016 to revise customer access and to re-phase the landfill development sequence. The five-acre capping project would be constructed before separatory liner installation, with a permanent external access road added to replace the proposed interior access ramp. Following approval of the PTI Alteration, CEC provided design, bid support, materials prequalification, and construction phase services for the construction of 5.6 acres of best available technology (BAT) final cover and 3.2 acres of BAT separatory liner.

Williams County Landfill