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Located in the middle to upper part of the Buller River between the Mangles and Owen Rivers. This is a popular white-water recreation area with important trout fishing values. This site is monitored by NIWA and is one of the original National River Water Quality Network (NRWQN) sites dating back to...

This site is monitored by NIWA and is one of the original National River Water Quality Network (NRWQN) sites dating back to 1989. 

The Catlins Freshwater Management Unit (FMU) contains many unmodified river, coastal and estuarine ecosystems, including an extensive spread of indigenous land cover. The landscape is made up of low ridges running in a north-west/southeast direction which supports the native forest and high-producin...

The Catlins River flows southeast through The Catlins to the Pacific Ocean at Pounawea. The total catchment area is 409 km2. The site has high ecological values and is in a scenic rural setting. Water quality is generally good.

The Clive River is a large body of relatively calm water popular for a wide range of recreation and sports - rowing, waka ama, kayaking, kite surfing, water skiing and jetskiing. This river is generally not suitable for swimming.   This river site is monitored weekly and water quality sampling indic...

This site is one of the original National River Water Quality Network (NRWQN) sites dating back to 1989. Otago Regional Council started monitoring this site in 2023. The monitoring site is below the SH1 bridge just before the river splits into the Koau and Matau branches.

It is located downstream of Lake Wanaka, immediately upstream of the Red bridge on the Luggate to Hawea Road. Water quality here is excellent.  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 bac...

The monitoring site is below the SH 1 bridge just before the river splits into the Koau and Matau branches. 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.   

The Conway River is in the Waiau-Hurunui management zone (WHZ) which covers 6,095 square kilometres and is home to over 11,500 people. The river starts in the Amuri Range near Palmer Saddle and runs for 30 km south-east through the Hundalee Hills at the south end of the Seaward Kaikoura Ranges befor...

The Conway River is a hill-fed river that arises in the Amuri Range and flows into the Pacific Ocean south of Kaikoura. Water quality and macroinvertebrates are monitored in the Conway River  upstream of SH1.

Dipton Stream at South Hillend-Dipton Road is located in the agricultural dominated Lower Oreti Catchment 150m downstream of the bridge at Dipton Stream. The site is sampled annually as part of Environment Southland's SOE Annual Biomonitoring program and monthly as part of the SOE River Water Qualit...

This site was recently added to the river sampling network and currently has less data available than other sites in the region. As a result, it does not yet meet the criteria for calculating states and trends. See Greater Wellington’s Live Data Viewer to see all available environmental data, includ...