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

The Hakataramea River is a hill-fed stream near Kurow and the Waitaki River.  Recreational water quality is monitored near the SH82 bridge.

GDC sample for recreational waters weekly during summer between 1 Dec and mid Feb. Site is located in the Gisborne Region but drains into the Hawkes Bay Region, eventually draining into the Wairoa River.  Hawkes Bay Regional Council monitor scientific water quality parameters and hydrology data.  Fo...

The Hangaroa River at Donneraille Park site is a HBRC fresh water quality & ecology monitoring site.

The Hāpuku River is located in the Kaikoura zone and is situated between the Pacific Ocean and the Inland Kaikoura ranges.   The river catchment has a mild maritime climate and high sunshine hours with an average annual rainfall that ranges from 1750mm in the headwaters to 844 mm by the coast.  The...

The Hātea River begins as the Waitaua Stream just north of Kamo, and flows southeast through Tikipunga and Mair Park into Whangarei Harbour. This short river, 17 km long, has a mixture of land uses in the catchment including urban, native forest and pastoral land.

The Hautapu catchment at this point is recognised as a locally significant trout fishery.

The Hawea River is fed from Lake Hawea and prone to fluctuating flows due to hydropower generation. The Hawea River is popular for recreational activities. Water quality is expected to be excellent.

Located within the agricultural dominated Makarewa catchment, near Tussock Creek the site is a channelised stream with a gravel bed. River water quality data is collected here monthly and Macroinvertebrate data annually as part of Environment Southland's State of the Environment monitoring.

The Heriot Burn is a tributary of the Pomahaka River. This lower catchment site flows through rural land and significant areas of dairy farming. Water quality is poor.  There is a flow recorder located at this site. There is no public access to the river.

Hikutaia River water quality site at Old Maratoto Road - The catchment source is in the Kaimai ranges and flows into the Waihou River further downstream.

In 2020 Waikato Regional Council (WRC) transferred the monitoring functions of the Taupō catchment to Tūwharetoa Māori Trust Board (TMTB). This site is now monitored by TMTB. The water quality site is located a short distance upstream of the Hinemaiaia River State Highway 1 road bridge and is access...