Wastewater

Community Wastewater Schemes

Rangitikei District Council has made a significant investment in its eight community wastewater schemes. These are:

  • Marton
  • Taihape
  • Bulls
  • Koitiata
  • Mangaweka
  • Hunterville
  • Ratana
  • Duddings Lake

The total scope of assets, which make up these schemes are:

Asset

Quality

Wastewater Treatment Plants

2

Oxidation Ponds

11

Wastewater Reticulation (pipelines)

91km

Pumping Stations

5

Purpose of Wastewater Disposal Infrastructure Assets

Territorial Local Authorities exist to supply services that meet the needs of their customers. In this case the service is the safe disposal of wastewater, via the creation, operation, maintenance, rehabilitation, replacement and disposal of assets. The decision as to what services are provided and how are in response to the needs and wants of the community.

The purpose of wastewater disposal assets is to:

  • Protect public health by providing a reliable, safe system for the disposal of wastewater.
  • Support business by providing industrial premises with a means of wastewater disposal (subject to on site pre-treatment in some cases).

The nature of wastewater disposal activity is:

  • Management and monitoring of wastewater disposal assets and effluent quality.
  • Repairing or replacing unsound pipes, structures, plants and providing adequate wastewater main capacity.
  • Operation of wastewater disposal assets.
  • Planning to meet future requirements and improve operations.

Rationale:

Adequate systems for the disposal of wastewater are a fundamental requirement for the health and general well being of the community. In urban areas wastewater is most effectively disposed of by means of a reticulated wastewater systems, which allow the costs associated with maintaining high standards and efficient infrastructure to be spread over the population base, keeping costs to individual users for wastewater disposal within affordable means (sustainability = affordability).

The existing wastewater systems have been developed and built over many years as public systems to serve the needs of the communities.

The rationale for continued Council involvement in the wastewater activity and ownership of the assets is contained in:

  • Local Government Act 2002 (section 130) which requires Council to continue to provide water services and maintain the capacity to do so.
  • Health Act 1956 (section 25) wich requires Council to provide "sanitary works", the definition of which includes "works for the disposal of sewage".

The quality of the effluent discharged from the eight systems into the rivers and streams within the district are regulated by Resource Consent conditions, which ensure the potential negative effects associated with the discharges are managed to acceptable levels.


Full details of Council’s plans to manage its waste water assets can be found in the:

Asset Management Plan 3 Waters 2014