Ōtaki Wastewater Treatment Plant

By Kapiti Coast District Council
3686
Oxidation ponds : A pond that contains partially treated wastewater which is then left to allow the growth of algae and bacteria which decompose therest of the waste.
Oxidation ponds : A pond that contains partially treated wastewater which is then left to allow the growth of algae and bacteria which decompose therest of the waste.

The Kāpiti Coast District Council holds two resource consents for the Ōtaki Wastewater Treatment Plant, which expire in September 2015. KCDC has been working through a series of projects to improve the Ōtaki WWTP:

  • In 2010, the on-site sludge handling process was changed from thickening and disposal at the Otaihanga Landfill. Now thickened sludge from Ōtaki is transferred to the Paraparaumu WWTP to produce a single Grade A equivalent stabilised sludge product.
  • The two oxidation ponds are being desludged to double their operating volume and thus improve their treatment capability.
  • The old in-ground sludge storage pond has been converted to a Storm Flows Buffering Pond. This will be used to store some treated effluent under extreme wet weather conditions, to meet the resource consent requirements for the wetlands disposal area.

KCDC has commissioned Cardno BTO to prepare a resource consent renewal application, which will be completed in May 2015 and submitted to the Greater

Wellington Regional Council. KCDC are working in partnership with Ngā Hapū o Ōtaki throughout the consent renewal process. If you have any questions or to register your interest in the public consultation process, please contact Amy Smith (Cardno BTO – 04 912 2535 or amy.smith@cardno.co.nz).