Balefill Remedial Works

Ceramco Park is a 10ha park located in Glen Eden, West Auckland.

The site was historically operated as a clay pit and then used as a bale fill (ie landfill) before being converted into a recreation reserve. Upgrade works have been recently undertaken on site, comprising the installation of a new footpath and stream bank protection. During the initial stages of the footpath construction, the landfill cap was breached in two different locations exposing a small amount of refuse.

The work area was temporarily covered with an impermeable liner and clay while a Remedial Action Plan (RAP) was prepared. The RAP recommended the installation of a Geosynthetic Clay Liner (GCL) as this solution was considered the most efficient and compatible with the upgrade work design.

Fraser Thomas (FTL) was initially engaged to provide an environmental assessment of the site following the exposure of waste Ceramco Park Quotematerial. This required collection of soil and leachate samples from the earthworks area. After this initial assessment FTL investigated various remedial options, with installation of a GCL recommended as the most practical and cost effective solution compatible with footpath upgrade works design, and acceptable to Council’s Contaminated Land and Closed Landfill Response Team.  We then undertook preliminary and detailed design, prepared and lodged resource consent applications, with associated Assessment of Environmental Effects.  We then reviewed the contractors price schedule and undertook construction observation of the GCL Liner works.  All upgrade works have now been completed.

Expertise provided:

  • Contaminated Land
  • Civil/Environmental Engineering Design
  • Landfill Management.

Project cycle:

  • Environmental site assessment
  • Preliminary/detailed design
  • Remedial Action Plan
  • Supervision of remedial works.