Where does our treated wastewater currently go?

Currently, treated wastewater from Rotorua's wastewater treatment plant is discharged into the Whakarewarewa Forest via a spray irrigation system

  • 19 to 20,000 cubic metres of treated wastewater per day
  • Sprayed over a number of irrigation blocks with approximate area of 400 hectares
  • Blocks are sprayed for 2 to 3 hours per day
  • Contains total 40 tonnes Nitrogen per year
  • Contains 19 tonnes Phosphorous per year
  • Contains pathogens (E-coli bacteria and viruses)

A map of the current spray irrigation system is here

Current waster water discharge background and summary here

<span class="translation_missing" title="translation missing: en.projects.blog_posts.show.load_comment_text">Load Comment Text</span>