Separate Phase Ltd is a specialist environmental consultancy based in Christchurch, New Zealand. We provide professional services and advice, with a focus on soil and groundwater science and engineering.

Our projects involve “the built environment”, managing effects of land developments, hazardous goods and waste management, on people and natural resources.

We pride ourselves on understanding client requirements, communicating clear, concise and practical solutions, enabling decision makers to progress their projects with confidence.

Our vision is ‘to be the most pragmatic environmental consultancy in New Zealand.’

Professional Services


  • SQEP | Suitably qualified and experienced practitioners
  • Preliminary and detailed environmental site investigations (PSI and DSI)
  • Soil and groundwater remediation
  • Construction dewatering and discharge monitoring
  • Hazardous Waste Management

Planning and Consultation

  • Resource consent applications – technical input
  • National Environmental Standard for Contaminants in Soil (NES) advice for building and land development
  • Environmental management plans
  • Liaison with community, regional and local councils

Project Management

  • Sub-contractor procurement
  • Quality control
  • Commercial risk management and decision making

Clients and Projects

We provide a thorough understanding of projects using ‘the scientific method’ and development of conceptual site models. We also love using technology and cloud based IT solutions!

Our clients include:

  • Land and property developers
  • Architects, engineers and environmental resource planners
  • Petroleum multinationals and independent site operators
  • Project management companies
  • Civil construction companies


Kellie Allan
Thomas Williams
Environmental Scientist
Richard Howard
Director Soil and Groundwater Consultant


Professional Associations

Staff at Separate Phase are active participants in the field of soil and groundwater contamination on both a
regional and national level, and are members of the following professional associations:

  • Institute of Professional Engineers, New Zealand (IPENZ)
  • Environmental Institute of Australia and New Zealand (EIANZ)
  • Australasian Land & Groundwater Association (ALGA)

Contact Us

Telephone +64 (0)3 421 6611


Postal PO Box 28148,  Christchurch, 8242

Physical 22 Stanley St, Sydenham, Christchurch

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