SCE&G Cope Station - Ash Landfill

South Carolina Electric & Gas (SCE&G) selected Garrett & Moore to manage and direct the planning and construction of a low permeable liner for their on-site landfill using waste ash scrubber material generated at SCE&G’s Cope Station power generation facility.

CopeProjectPicture1.pngThe solid waste permit for the Cope Station’s ash/scrubber material landfill includes provisions for using the plant’s waste ash to construct a minimum 2-ft thick 1 x 10-6 cm/sec liner. We were engaged during the construction of an ash/scrubber material liner for Cells 1 and 2.

Drawing from our geotechnical experience of fly ash materials and successful testing programs for augmented soil liners, we were able to develop a conformance testing program to evaluate permeability characteristics of pozzolanic mixtures for lime augmentation rates and coal sources.

Based on the results of our testing program, our staff developed successful and improved protocols for the placement and testing of the ash/scrubber liner materials. Moreover, we were able to secure the approvals from SCDHEC Solid Waste to amend the previously accepted procedures, creating a systematic and straightforward process.

Our firm has successfully managed and directed the construction of two cell liners to include consulting and CQA Services during construction for:CopeProjectPicture2.png

  • Preliminary Evaluations for Test Burn Ash Material from Various Coal Sources 
  • Acceptable Zone Testing to Identify Optimal Lime Augmentation Rates and Placement Requirements
  • Liner Design and Layout
  • Test Pad Construction
  • Beneficial Fill and Liner Construction
  • Engineer Certifications
  • SCDHEC Negotiations and Reporting