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This Water Management Area (WMA) begins at the outlet of Lake Tarawera and the water supports extensive economic activity based on dairy and wood processing.  The Tasman pulp and paper processing site, and a range of other industrial operations, are in the middle of the catchment at Kawerau. The reg...

This site was monitored by NIWA until March 2024 and is one of the original National River Water Quality Network (NRWQN) sites, with records dating back to 1989.

Crystal clear waters emanate from Lake Tarawera to form the beginnings of the Tarawera River. Surrounded by native bush and located on the famous Tarawera Falls trail, this area is ideal for many recreational pursuits and is a renowned trout fishing spot. This site is monitored by NIWA and is one of...

The Taruheru is one of Gisborne city’s ‘Three Rivers’ and in the lower reaches it provides for recreational activities such as waka ama, fishing, and kayaking. The catchment is mainly within the lower Poverty Bay Flats with headwaters only 13 km from the city.

The Taueru River at Gladstone is located on the lower reaches of the Taueru River. The River is an eastern tributary of the Ruamāhanga River and is located to the southeast of Masterton. Access to the site is through private land only. This site is monitored as part of a programme specifically desig...

The Tauherenikau River flows from the Tararua Forest Park and bypasses the town of Featherston before discharging into the northern end of Lake Wairarapa.  This site is located at the end of Buck's road, with plenty of parking. A short walk down to the river opens on to multiple swimming spots and i...

This site is located on the lower reaches of the Tauherenikau River, approximately three kilometres upstream from the river mouth. This site has public access off Diversion Road. The Tauherenikau River flows from the Tararua Forest Park and bypasses the town of Featherston before discharging into th...

This water quality site located on the Tauranga-Taupo River is accessed via State Highway 1 and is a short walk upstream of the Tauranga-Taupo road bridge on the true right side. The substrate is predominantly gravel and cobbles mixed with sand and pumice. Like most Lake Taupo tributaries it has exc...

The Taurekaitai Stream at Wallingford site is a Regional Council fresh water quality & ecology monitoring site.

The Tawarau River at Speedies Rd is a water quality and ecology site. The river is hard-bottomed with the substrate consisting of cobbles/gravel at the monitoring site. The river banks have good riparian cover on one side of the river in the vicinity of the monitoring site.

The Tawhiti Stream is a small stream that flows through farmland near Hāwera for approximately 33 kilometres, before joining the Tāngāhoe River in the lower reaches of the catchment. Water quality has been monitored at this site since 2022.  

Te Awa Kairangi (Hutt River) is one of the largest in the Wellington Region. With headwaters in the Remutaka Range, the river flows through the Hutt Valley past Upper Hutt and Hutt cities before discharging into Wellington Harbour at Petone. Te Awa Kairangi (Hutt River) is very popular for swimming,...