Last updated: 28 Jun, 2023 07:34pm

Carterton District Council holds new resource consents for the Carterton wastewater treatment and disposal activities.

The consents became operative on 19 January 2018 and are for a term of 35 years.

Council’s long-term plan is to improve the treatment of urban wastewater in a sustainable way. Its vision is to improve freshwater quality by removing treated effluent from streams.

We welcome comment and discussion to help achieve the best practicable outcomes for the people of Carterton and the environment.

More information

  • Email info@cdc.govt.nz
  • Write to Wastewater Project Manager, Carterton District Council, PO Box 9, Carterton


Project Updates

We’re making huge strides in our work at our Daleton Farm Wastewater Treatment Plant Upgrade Project.

Visit our Wastewater Treatment Plant Upgrade Project page for more information.

Completed Works

Upgrade works completed on Daleton Farm since 2014 include:

  • A centre pivot irrigator on the upper terrace of Daleton farm covering an approx. area of 20 ha
  • Dripline irrigators adjacent the SH2 boundary
  • Native shelter plants and a pinus radiata windbreak around Daleton Farm which will be irrigated with drip-lines when necessary.
  • A new high capacity ultraviolet (UV) treatment plant
  • Construction of a cover over the existing anaerobic digester from which accumulated,  malodorous gases are treated through a soil/bark filter

Working with our Community

Urban residents can help reduce the amount of water and pollutants going into the wastewater system by:

  • Conserving water throughout the household
  • Making sure downpipes are not illegally connected to the sewerage system
  • Ensuring low-lying gully traps are raised above ground level
  • Carefully disposing of wipes, nappies, sanitary goods, chemicals, fats, oils, medicines, plastics; through means other than the wastewater system
  • Using phosphate-free detergent

Council will continue to work with the community towards achieving its vision through an Advisory Group comprising Iwi, Mangatārere Restoration Society, Wairarapa Public Health, Sustainable Wairarapa, Greater Wellington Regional Council and Carterton District Council.

The Group assists Council to identify further improvements to WWTP treatment technology and future mitigation, disposal, and reuse options.

The community is also closely involved in helping restore the Mangatārere Stream through Council’s partnership with the Mangatārere Restoration Society.