Water Efficiency Plan Update

Client Name
Auckland International Airport Limited (AIAL)
Auckland, New Zealand
  • Hydrology
  • Hydrogeology


To help Auckland International Airport Limited (AIAL) reduce its current demand on potable water, an aspirational target of 20% reduction in water consumption by 2020 was set. To reach this target, achievable water efficiency initiatives that can be integrated into the 30 year vision for Auckland Airport was needed.

To help achieve this, an update of the Water Efficiency Plan (WEP) was carried out to understand changes in potable water consumption up to 2015 and recommend opportunities to better use water resources across the Auckland Airport precinct.

By understanding potable water consumption patterns across Auckland Airport, a range of tailored and achievable initiatives were identified to help improve water efficiency whilst engaging stakeholders in sustainability initiatives.

These initiatives represent a significant step in reducing the reliance of Auckland Airport on potable water. It also shows significant effort to identify ways to substitute non-potable water for purposes other than drinking.


SLR was engaged to update the AIAL Water Efficiency Plan and recommend a number of projects which would assist in optimising water use across the Auckland Airport Precinct. Our role included:

  • The identification of key issues in site water consumption across AIAL collected during a site walkover.
  • Assess current water data to determine if any changes had occurred since 2013.
  • Identify the current issues and opportunities for water efficiency across the AIAL Precinct.
  • Update the 2013 WEP and identify four main opportunities for both grey water recycling and stormwater and capture for potable water substitution.