The Waingaro River is a river of the

Waikato Waikato () is a Regions of New Zealand, local government region of the upper North Island of New Zealand. It covers the Waikato District, Waipa District, Matamata-Piako District, South Waikato District and Hamilton, New Zealand, Hamilton City ...

region of New Zealand's

North Island The North Island, also officially named Te Ika-a-Māui, is one of the two main islands of New Zealand, separated from the larger but much less populous South Island by the Cook Strait. The island's area is , making it the world's 14th-largest ...

. It flows generally southwest from its origins near

Glen Afton Glen Afton and Pukemiro are twin settlements in the Waikato District, in northern Waikato region of New Zealand's North Island. The nearest town is Huntly, New Zealand, Huntly, some 14 km (15 minutes' drive) away. The settlements were prev ...

and Glen Massey, west of

Ngāruawāhia Ngāruawāhia () is a town in the Waikato region of the North Island of New Zealand. It is located north-west of Hamilton at the confluence of the Waikato and Waipā Rivers, adjacent to the Hakarimata Range. Ngāruawāhia is in the Hamilton Ur ...

, to reach a northern arm of

Raglan Harbour Raglan is a small beachside town located 48 km west of Hamilton, New Zealand on State Highway 23. It is known for its surfing, and volcanic black sand beaches. History The Ngāti Māhanga iwi occupied the area around Raglan in the lat ...

(se
1:50,000 map
. Its main tributary is Kahuhuru Stream, which Highway 22 follows for several kilometres. Tributaries total about . At

Waingaro Waingaro is a rural community in the Waikato District and Waikato region of New Zealand's North Island, on the banks of the Waingaro River, where it is fed by a hot spring. Demographics Waingaro is in an SA1 statistical area which covers . ...

it is fed by a

hot spring A hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow bodies of magma (molten rock) or by circ ...

Geology

Waingaro River and hot water pump station

The lower river flows over Puaroan age (about 150 million years ago), blue-grey Puti

siltstone Siltstone, also known as aleurolite, is a clastic sedimentary rock that is composed mostly of silt. It is a form of mudrock with a low clay mineral content, which can be distinguished from shale by its lack of fissility.Blatt ''et al.'' 1980, p ...

.Geology of the Raglan-Kawhia Area: Institute of Geological & Nuclear Sciences (N.Z.), Barry Clayton Waterhouse, P. J. White 1994

Pollution

The Waingaro River is one of the largest sources of sediment in Whaingaroa Harbour, partly because it is 99 percent unfenced.

Pollution Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the ...

has been worsening for phosphorus, though nitrogen has improved, as shown in this table of important (i.e. slope direction probability over 95% and RSKSE over ±1% pa) improvements, or deteriorations (-) in relative seasonal Kendall slope estimator (RSKSE) trends (monthly records are flow-adjusted using a Lowess curve fit with 30% span.) -

Turbidity Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air. The measurement of turbidity is a key test of water quality. Fluids can ...

is also poor.

References

* * New Zealand 1:50000 Topographic Map Series sheet BD32 – Raglan

External links

* most of the river is close to Ohautira and Waingaro Roads, so many images are available in street scene on https://maps.google.com/ * water quality at Ruakiwi R
LAWAWRC

water level at Waingaro

- National Library 1910 photos of Waingaro Landing, Waingaro Bay (note the 1900 road to the Landing on the hillside) and Waingaro Estuary.
1955 Waingaro Landing aerial photo
- the foreground shows part of the Kerikeri River (Waikato), Kerikeri River arm of the harbour, which is over 3 km long. The Waingaro River joins the estuary in the middle left of the photo.
Photo of oil launch 'Nita'.

2012 Estuarine Vegetation Survey - page 15 describes the wildlife in the Waingaro and Kerikeri River arm of the harbour.
{{Geographic Location, title=Neighbouring areas, Northwest= Glen Murray, North=

, Northeast=

Rotowaro Rotowaro was once a small coal mining township approximately 10 km west of Huntly in the Waikato region of New Zealand. The town was built especially for miners houses, but was entirely removed in the 1980s to make way for a large opencast ...

, West=

Te Ākau Te Ākau is a small farming settlement in the North Island of New Zealand, located north west of Hamilton, New Zealand, Hamilton, south west of Huntly, New Zealand, Huntly, south of Port Waikato and , or by ferry and road, north of Raglan, ...

, Centre=Waingaro, East= Glen Massey, South=

Te Uku Te Uku is a small, mainly farming, settlement on SH23 in the North Island of New Zealand, located from Hamilton and from Raglan. It has a 4-Square shop, church, coffee stall and art gallery, filling station, hall, school and Xtreme Zero W ...

, Southeast=

Te Kowhai Te Kowhai is a small rural town situated 15 km north west of Hamilton City in New Zealand. It consists of mainly dairy and cattle farms and also includes a small dairy/takeaway, fresh vegetable and fruit store, cafe, bakery, a large park w ...

, Southwest= Raglan Rivers of Waikato Waikato District Rivers of New Zealand

Geology

Pollution

See also

References

External links