King's Birthday opening hours

12:00am 03 Jun 2024

Over the King's Birthday public holiday (Monday 3 June 2024) some of our facilities will be closed or have reduced hours.

Find out more
Matoroa i te whare wai o Ngāmotu me te whare rāwekeweke wai-para

Tour the New Plymouth water or wastewater treatment plant

Join one of our knowledgeable guides behind the scenes at our water treatment plant or our wastewater treatment plant and find out how water and wastewater is treated.

Visiting New Plymouth’s treatment plants is a great way to gain an understanding of the processes involved and get an appreciation for the volume of water treated each day. It also highlights many of the challenges faced at the plants.

Water treatment plant

At the water treatment plant you will see how we treat water from the Waiwhakaiho river before it goes into the pipes and comes out your taps.

Wastewater treatment plant

At the wastewater treatment plant find out how we treat wastewater, like the water that comes from washing machines, toilets and showers.

Tour information 

  • group size is limited to 20 people per tour
  • minimum age allowable on site is 10 years old (or year 5 and above)
  • sturdy, flat, closed-toed shoes are essential
  • tours last approximately 45 minutes to one hour
  • tours may be postponed or cancelled due to bad weather or if treatment plant staff deem it to be unsafe
  • tour requests do not guarantee a tour booking as they are subject to availability
  • Email to make a tour enquiry


Please note: The treatment plants are industrial sites and operate 24 hours a day, seven days a week. Your safety is important to us so please ensure you read and understood the tour information and visitor guidelines before booking your tour.