Cleanfill is often composed of natural materials that when buried will have no adverse effect on people or the environment.


The Ministry for the Environment (MfE) defines “Cleanfill” as material that when buried will have no adverse effect on people or the environment.

Cleanfill material includes virgin natural materials such as clay, soil and rock, and other inert materials such as concrete or brick that are free of combustible, putrescible, degradable or leachable components; hazardous substances; materials that may present a risk to human or animal health (e.g. medical waste, asbestos); and liquid waste.


Fraser Thomas provides assistance throughout the whole cleanfill process, including:


  • Concept, preliminary and detailed design
  • Preparation of engineering reports and assessments of environmental effects to support resource consent applications
  • Preparation of cleanfill management plans
  • Observation and monitoring of cleanfill operations
  • Cleanfill certification and compliance reporting


Many of these projects have involved working with other specialist consultants addressing planning, traffic, noise, ecology and visual effects.


Some cleanfills might have been operating illegally, either without consents or breaching consent conditions or rules in a district or regional plan. Fraser Thomas can assist clients in these particular situations, providing assistance in order to obtain the necessary retrospective certification.

Recent Projects Include:

  • Karaka cleanfill 1: consent application for extension of existing cleanfill into adjacent gully (33,000m3) on existing farmland.
  • Brookby cleanfill: consenting for proposed 170,000m3 cleanfill on existing farmland.
  • Papakura cleanfill: retrospective consenting of illegal cleanfill on residential lifestyle block, including obtaining consents to extend cleanfill operation (7500m3).
  • Karaka cleanfill 2: geotechnical and environmental investigations of completed cleanfill (12,800m3) on farmland to confirm compliance with resource consent requirements.
  • Warkworth: Engineering input into improving operations of existing moderate sized cleanfill, with particular focus on erosion and sediment controls.

Services Provided:

  • Civil Engineering
  • Environmental Engineering
  • Geotechnical Engineering
  • Surveying
  • Contaminated Land


Similar Projects

Hawke’s Bay

Fraser Thomas were selected to prepare a wide ranging sector development programme including investments in infrastructure, capacity building, research and sector governance.

Watercourse Remediation

Watercourse remediation to improve stream stability and reduce erosion of a hillside.

Asbestos Management Plan – Asset and Liability Management

Fraser Thomas Ltd is fully qualified to undertake IP402 asbestos assessments and complete asbestos management plans.

Call us today to discuss your project

Auckland 09 278 7078

Tauranga 07 220 9277

Hawke’s Bay 06 211 2766

Christchurch 03 358 5936

Blenheim 03 428 3292

Nelson 03 222 1132