P: 021 1104814

Freshwater Ecologists

Environmental Impact Assessments Limited is a niche environmental consultancy specialising in:

  • freshwater quality
  • data analysis
  • environmental impact assessments
  • resource consent advice
  • wetland delineations
  • vegetation assessments
  • stream ecology valuations
  • fish translocations and monitoring
  • pest animal and plant monitoring
Water quality valuation NZ

Brett Stansfield - Director (PG Dip Sci, MSc Hons)

  • Environmental Scientist with 25 years experience

  • Guest lecturer for Auckland University of Technology

  • Extensive experience in monitoring and technical reporting of rivers lakes wetlands and coastal environments

  • Electric fishing certified

  • Expert witness for environment court and regional council hearings

  • New Zealand Freshwater Sciences Society member

  • Water New Zealand member

  • 15 years experience as an environmental scientist for two regional councils

  • Extensive experience in statistical analysis and reporting of water quality data.

  • Certified independent hearings commissioner

  • Responsible for external client management

Dr Peter Edwards MSc (Hons) Marine Science, PHD

  • Proficient in Te Reo Maori

  • Freshwater and marine taxonomy

  • Relationship building with external and internal stakeholders and local Iwi

  • Underwater survey experience (Mayor Island Marine Reserve, Te Whanganui-AHei Marine Reserve, environments Mercury Islands)

  • Freshwater lakes, streams and invertebrate surveys (Rotorua lakes district, Tauranga, Katikati)

  • Estuary survey and sample collection

  • Internal & external audit, compliance monitoring

  • Extensive laboratory experience

Tom Walker

Tom Walker PG Cert Plan, MSc(Hons)

  • 12 years consulting experience

  • Assessment of environmental effects reporting

  • Ecological management plans

  • Biodiversity offsetting

  • Fish pass assessments and relocations

  • Electric fishing certified

  • Water quality assessments

  • Wetland and vegetation surveys

  • Ecological restoration plans

  • Animal and plant pest control plans

  • Environmental policy and planning

  • Terrestrial and freshwater ecology expertise

  • Covenant management

Dr. Rob Lewis MSc (Hons) Marine Biology, PHD Molecular Biology

Rob is a marine and freshwater macroinvertebrate taxonomist. Rob also has extensive experience in molecular biology. Rob is our R code guru which enables us to produce very informative graphics for our reporting. Rob also is also a whizz at:

  • Genetic sequencing, metabar coding and population connectivity

  • Data analysis , statistics and graphical data presentation

  • Field community surveys

  • Molecular biology laboratory methods

  • eDNA sampling and interpretation

  • R coding

  • Water quality and ecology surveys

Chloe Collins B.Adv Sci (Hons)

Chloe Collins is our senior technician EIA, she takes care of everything regarding macroinvertebrate and periphyton taxonomy. Chloe also undertakes stream water quality and ecology surveys throughout the region. She is our go to for:

  • macroinvertebrate and periphyton taxonomy

  • Petriflim E.coli analyses

  • Inter laboratory Quality Assurance

  • Data entry and database management

  • Water quality surveys

  • Stream ecological valuation and permanence surveys

  • Erosion planting plans

Kanchan Waghela MSc (Hons)

Kanchan Waghela is our laboratory supervisor, she takes care of laboratory processes and staff training. Kanchan is our go to for data reporting, quality assurance and is also a qualified environmental educator. Kanchan has trained as an environmental botanist.

Kartik Bhat, PG Dip Env Man, MSc (Hons)

Kartik holds an MSc (Hons) in Environmental Science and a post graduate diploma in Environmental Management. Kartik has extensive experience in environmental auditing and consent and compliance monitoring. Kartik's duties include:

  • Water Quality Monitoring and Assessment

  • Aquatic Macroinvertebrate Taxonomy

  • Technical Reporting

  • Survey Design

  • QGIS Mapping

  • Staitistical Analyses

  • Stakeholder relationships advisor

Our Associates

There is no job too big or too small for EIA. We work with a number of specialists and associates.


Ecologist/Resource Management Specialist

  • Preparation of Assessment of Environmental Effects (AEE) and other environmental documentation
  • Evidence presentation at Council hearings & Environment Court.
  • Stakeholder Engagement
  • Analysis and interpretation of biological communities and water chemistry data
  • Freshwater surveys- SEV, MCI, habitat assessment, fish surveys
  • Marine ecological surveys

Email: lgowing@argoenv.com
Web: www.argoenv.com

Dr. Christopher A. Dada

  • Dr. Christopher A Dada Environmental Health Microbiologist/Data Specialist
  • Quantitative Microbial Risk Assessment (QMRA)
  • Data visualisation, predictive modelling
  • R, SAS, Python, Tableau

Get in Touch

If you need resource consent advice for anything surrounding water quality, freshwater ecology, aquatic ecosystems, riparian vegetation, stream gaugings, stream depletion or freshwater biodiversity then please get in touch. 

{{errors.first('rs-43a4-2f16-c848', 'rs-43a4-a327-59c6')}}
{{errors.first('rs-43a4-2f16-2145', 'rs-43a4-a327-59c6')}}
{{errors.first('rs-43a4-2f16-a398', 'rs-43a4-a327-59c6')}}

Message Sent