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The Ōākuramatapū River drains a 4,274-hectare catchment which rises in the Pouākai mountains, and flows along the northern flank of the Kaitake Ranges and across dairying land. The river quality site is located in the tidal section of the lower river just upstream of State Highway 45. The site is an...

MDC permanent state of the environment groundwater quality monitoring site near Rai Valley township established in 2012 to represent shallow groundwater underlying the terraces of the inland river valleys of the Marlborough Sounds catchments. Intended by MDC to complement the extensive surface water...

Originally drilled as an exploratory test bore by the Marlborough Catchment Board in 1987 and a permanent groundwater quality monitoring site. Intercepts the confined Wairau Aquifer at a depth of 40 metres below the surface near the Cloudy Bay coast opposite the centre of Wairau Plain. Real time sea...

Privately owned, shallow vineyard irrigation supply well located west of Renwick near the river  terrace boundary. Represents southern boundary area of unconfined Wairau Aquifer which is predominantly recharged by Wairau River flow losses, but with seasonal inputs of drainage water from the Del...

Very shallow MDC monitoring well established at privately owned vineyard to measure groundwater quality and level. Located south-west of Renwick. Represents thin, riparian gravel aquifer associated with Omaka River. Forms part of low yielding Southern Valleys Catchments occupying south-western edge...

Permanent MDC monitoring well. Longest standing MDC monitoring site which measures both groundwater quality and level of the unconfined Wairau Aquifer in the recharge sector where significant volumes of Wairau River channel flow are naturally lost to the gravel aquifer. Benchmark monitoring well for...

Privately owned vineyard irrigation well used by MDC for seasonal State of the Environment (SoE) groundwater quality surveys. Represents less transmissive southern edge of Wairau Aquifer north of Woodbourne. Unconfined aquifer structure but predominantly recharged by Wairau River losses with some ra...

Privately owned domestic supply well located on dairy farm at Linkwater. Well is reasonably deep and elevated above Cullen Creek on an alluvial terrace. Water is likely to be exchanging between Cullen Creek channel and groundwater. Aquifers are localised, lower yielding than those forming the Wairau...

MDC have records of groundwater quality dating back to 1975 based on samples from three wells at RNZAF Base Woodbourne. Most samples have been taken from the Tower or North well 662, but when that well was no longer used, manual samples were taken fom the South well 661, and more recently the PFAS p...

The Akatarawa River at Hutt Confluence is located in the lower reaches of the Akatarawa River just before it joins with the Hutt River. The Akatarawa River is a popular for swimming because of the deep pools found there.  This site is monitored as a part of Greater Wellington Regional Council’s Recr...

The Aongatete catchment covers 46 km 2 and the river flows north-east from the Kaimai Ranges to the Tauranga Harbour.  The catchment geology is dacite and Coromandel andesite in the Kaimai Ranges through Waiteariki ignimbrite and then recent and older fluvial terraces with estuarine deposits.

The Aparima is the smallest of Southland’s four main catchments. It extends from the Takitimu Mountains west of Mossburn to the Jacobs River Estuary at Riverton and the headwaters drain alpine, native tussock and forested land.