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The Lower Clutha Rohe covers over 4,000 km2. It includes the Pomahaka catchment and several other river catchments that feed the Clutha River/Mata-Au including the Waitahuna, Waiwera and Tuapeka catchments, and smaller tributaries. The rohe also includes Lake Tuakitoto, a small shallow lake with an...

The Central Lower Hutt air quality site is located on the eastern side of the Hutt River, in Phil Evans Reserve near the Waterloo train station. The site was established in 2001 and measures the quality indicator PM10.  

The Lower Oreti groundwater zone encompasses the recent floodplain of the Oreti River south of Ram Hill and covers 41,155 hectares..

The Luggate Creek Catchment is 121 km2 and the river extends for approximately 20 km. The catchment is mainly extensive sheep grazing. The water quality monitoring site is at the bottom of the catchment before Luggate Creek enters the Clutha River Mata/Au. Water quality is generally good.

This is the lower of two water quality monitoring sites on the Mahurangi River. This site is a high order, lowland stream less  than 1 km from the estuary and has an upstream catchment of 4,730 ha. While the site is located within the Warkworth township, the upstream catchment is predominantly...

Water quality was originally sampled at Riverside by Riverside pool. The sampling site was moved 500m upstream to Avon Terrace to avoid the tidal influence on the river ecology. The area has easy access via road or footpath and excellent for picnics or walking. Brown trout regularly are seen in the...

The Makarau River site is located on a high order, low gradient stream approximately 4 km from the coast and has an upstream catchment area of 4,840 ha. This is a paired water quality and ecology monitoring site.

The Makaretu River at State Highway 50 site is a Regional Council fresh water quality & ecology monitoring site.

Located approx. 8km North of the city of Invercargill, within the agriculture dominated lower Makarewa catchment. Macroinvertebrate samples have been collected here annually  since 2019 and River water quality data has been collected here monthly since 2014 as part of Environment Southlands Sta...

Located within the lower oreti catchment the sampling area is a channelised stream with cobble bed. The river drains a partially native forested catchment and the site is surrounded by farmland.  Water quality data is collected here monthly and macroinvertebrate data annually as part of Environment...

The Makaroro River at Burnt Bridge is a HBRC freshwater and ecology monitoring site. This site is in the Tukituki catchment, where a plan change has set specific targets for improved water quality and ecosystem health. Further data and information is available at: https://www.hbrc.govt.nz/environmen...

The Maketawa Stream is on the Taranaki ringplain, beginning within Te Papa-Kura-o-Taranaki (the national park) on the eastern side of Taranaki Maunga. It is a sub-catchment of the Manganui River, which is a major sub-catchment of the Waitara River – the largest catchment in the region. The stream is...