• Xin Cheng & Eleanor Cooper

With Auckland moving to Alert Level 3 on Wednesday, 12 August, this exhibition will be closed until further notice.

KEYWORDS | Greywater; Regulation; Compliance; Risk Assessment

‘Although the nature and extent of greywater use in New Zealand is not well documented, there are anecdotal reports that a growing number of households are using some form of unregulated and unreported greywater disposal system. These are typically basic,’ and include random outlet pipes from washing machines, discharging through laundry windows directly onto lawn or grassed areas. This behaviour has ‘implications for public health as well as environmental contamination concerns. Greywater has been reported to have a potentially high microbial load, including bacterial (Gross et al., 2007), protozoan (Birkes et al., 2004) and viral (O’Toole et al., 2012) as well as chemical contaminants originating from pharmaceuticals (Hernandez Leal et al., 2010) and household cleaning products (Harrow et al., 2011).’


Alma Siggins, Hamish Lowe, Ben Thompson and Jacqui Horsell

Institute of Environmental Science and Research, Ltd (ESR), Porirua; The Centre for Integrated Biowaste Research (CIBR); Lowe Environmental Impact, Palmerston North; Kapiti Coast District Council

Nau mai, Haere mai!

Whakarongo Mai Whānau: Please note, there will be no opening event for Greywater

Opening Hours

  • Wednesday to Friday, 11am–5pm
  • Saturday, 11am–3pm
  • or by appointment


  • Ground Floor
  • 454 Karangahape Road
  • Auckland 1010