e3s apply two decades of experience; the latest technology; and smart, innovative remediation techniques to investigate, identify, clean up and manage contaminated land and soil and landfill gas in accordance with New Zealand National Environmental Standards and international best practice.  This includes the use of up to date tools such as our Olympus Vanta XRF (X-Ray Fluorescence) instrument to directly determine the elemental composition of materials in the field.

e3s provides a full range of contaminated land and landfill gas services including:

  • Pre-Purchase and Due Diligence Investigations.
  • Preliminary and Detailed Site Investigations.
  • Tier 1 and Tier 2 Human Health and Environmental Risk Assessment.
  • Remedial Action Plans.
  • Site Validation Reports.
  • Site Management Plans.
  • Offsite soil disposal investigation and management.
  • Fuel tank removal oversight and reporting.
  • Methane oxidation, odour detection and emission management for landfill sites.


Postal address
P.O. Box 2450
Queenstown 9349

Arrowtown Office
Arrow Lane
Arrowtown 9302

Invercargill Office
Lorn Street
Invercargill 9810

Te Anau Office
Level 1
112 Town Centre
Te Anau 9600

Christchurch Office
Public Trust Suites
Level 1/152 Oxford Terrace
Christchurch Central 8011

(+64) 3 409 8664