e3s delivers hydrology and water resource projects tailored to the required solution.  Data collection programs are designed and implemented based on thorough desktop investigations.

Our services include:

  • Water quality assessments and water compositional studies
  • Hydrochemical evaluation
  • Soil and geological mapping for water quality
  • Infiltration testing for effluent disposal to land
  • Hydrological and hydrogeological investigations and modelling
  • Groundwater supply
  • Contaminant fate and transport
  • Aquifer characterisation
  • Drilling supervision
  • Environmental flows assessment and planning
  • Water budgets
  • Geographic Information Systems (GIS) and Spatial Data Analysis
  • Assessment of environmental effects and management plans
  • Independent peer review
  • Project management
  • Multidisciplinary/integrated assessment of environmental impacts


Postal address
P.O. Box 2450
Wakatipu 9349

Office location
Arrow Lane, Arrowtown

(+64) 3 409 8664