The Water New Zealand Stormwater Special Interest Group was established in 2001 and has a membership of over 500 interested people throughout New Zealand. The Group caters to all people involved or interested in the management of Stormwater systems in an urban context.

Member interests are represented by an elected management committee, who co-ordinate across the following three workstreams. Related training and resources are accessible at this page.

Technical and Policy

  • Communicates developments in regional and national stormwater policies.
  • Reviews regional and national stormwater related policies for consistency and industry best practice.
  • Provides specialist stormwater expertise to participate in cross-discipline or cross-sector initiatives that influence the group.


  • Delivers an annual national Stormwater Conference.
  • Ensures high quality papers and presentations which reflect the current and future needs of the industry.
  • Engages keynote speakers with highly significant industry relevance.
  • Engages with members through feedback to continuously improve year-on-year.

Education and Training

  • Holds regional meetings for sharing industry best practice and a forum for discussing regional issues.
  • Holds national webinars via Water New Zealand for sharing industry best practice.
  • Provides support to the Water New Zealand Training and Development Manager in delivering the actions and recommendations in the Stormwater Education, Training and Sector Development Plan Engagement and Communications.
  • Provides contribution to SIG communications and media, including Water magazine and its Linkedin group.


The Water New Zealand Stormwater Special Interest Group aims to

  • Assist in the definition and promotion of best industry practice for the management of stormwater within Aotearoa New Zealand.
  • Provide a platform for the advancement of stormwater operation and management in order to;
    • Align with our responsibilities in the Treaty of Waitangi.
    • Protect and enhance the environment.
    • Protect people and assets.
    • Encourage innovation.


    The Water New Zealand Stormwater Special Interest Group holds a variety of educational and information-sharing events including an annual conference. Events are listed on the Water New Zealand website. To receive notification of upcoming events, follow the instructions on the “Get involved” section of our homepage.


    The Stormwater Special Interest Group’s full Terms of Reference are here.


    To keep abreast of the group’s activities: follow these instructions to sign up for group updates on your Water New Zealand dashboard. If you are not a Water New Zealand member, you can still follow us on our LinkedIn page, sign up for association updates through our fortnightly e-newsletter Pipeline, or apply for membership.

    To register your interest in joining the committee: Contact our Group’s co-ordinator Katrina Guy.

    Chair: Peter Christensen