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The Waingongoro River rises on the south-eastern slopes of Taranaki Maunga and is one of the longest ring plain rivers. This river is a major trout fishery in Taranaki and is also subjected to water abstractions. The Opunake Road site is an upper reach site 7 kilometres downstream of the National Pa...

The Waingongoro River rises on the south-eastern slopes of Taranaki Maunga and is one of the longest ring plain rivers. This river is a major trout fishery in Taranaki and is also subjected to water abstractions. The Stuart Road site is a mid reach site located 30 kilometres downstream of the Nation...

The Waiokura Stream is a small seepage fed, ringplain stream draining an intensive dairy-farmed catchment. The Manaia Golf Course site is mi-reach and lies below an industrial wastewater discharge to land, at an altitude of 70 metres above sea level.

The Waiokura Stream is a small seepage fed, ringplain stream draining an intensive dairy-farmed catchment. The Skeet Road site is in the mid to lower reaches of the catchment, draining open farmland, and at an altitude of 150 metres above sea level.

The Waiongana Stream originates within Te Papakura o Taranaki near the North Egmont visitor's centre, and flows northeast through agricultural land to the sea. This lower reach site is downstream of a major water abstraction and is 31 kilometres from the National Park boundary at an altitude of 20 m...

The Waiongana Stream originates within Te Papakura o Taranaki near the North National Park visitor's centre, and flows northeast through agricultural land to the sea. This mid reach site is 16 kilometres downstream of the National Park boundary at an altitude of 140 metres above sea level.

The Waitara River at Autawa Road has been monitored since July 2015 and is a mid-catchment site. The catchment upstream of this site drains Taranaki's Eastern hill country and contains a mixture of native vegetation and upland agricultural development. Trend data is not yet available for this site d...

The Waitara River is an eastern hill country river flowing through a mixture of agricultural land and native forest before passing through Waitara township. The Mamaku Road site is at an altitude of 15 metres above sea level and is located six kilometres upstream from the coast above any tidal influ...

The Waiwhakaiho River is a large ringplain river arising in Te Papakura o Taranaki and flowing through agricultural and industrial land to the sea. This lower reach site is in an industrial area of New Plymouth and is 27 kilometres from the National Park boundary at an altitude of 20 metres above se...

This site is located approximately in the middle of the catchment with the river running from the National Park through developed farmland (40% of catchment above site). The site is also immediately upstream of a major water diversion for the New Plymouth water supply and the Mangorei Hydro-electric...

The Waiwhakaiho River is a large ringplain river arising in Te Papakura o Taranaki and flowing through agricultural and industrial land to the sea. This upper reach site is just inside the National Park boundary at an altitude of 460 metres above sea level.

The Waiwhetu Stream at Whites Line East is located in the lower reaches of the Waiwhetu Stream on the eastern side of the Hutt catchment. The Waiwhetu stream enters the Hutt River Mouth at Petone.  This site is monitored as part of a programme specifically designed to measure the health of rivers an...