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The water quality site located on the Mangawhero Stream (Cambridge) is accessed via Cambridge-Ohaupo (Kaipaki) Road. The gully upstream of the monitoring site is overgrown with dense vegetation consisting of willows, poplars and exotic weeds. The sample is collected directly under the bridge where t...

The water quality site located on the Mangawhero Stm (Kaihere) is accessed via Mangawara Road. The substrate consists of cobbles and gravel at this site. The riparian zone is dominated by manuka scrub with plantation forest cover further upstream.

Water quality here is generally safe for recreational activities, however bacterial contamination can occur, commonly after rainfall, as stormwater and rural run-off may contain human or animal effluent. Our investigations have identified sources of bacteria as ruminant (sheep/cows), avian (birds) a...

This site is in the lower catchment near the confluence with the Clutha River/Mata-Au at Alexandra. Water quality is generally good however during low flows and high summer temperatures filamentous algae growth can cover large areas of the river bed.  A significant water take at Galloway for irrigat...

The Maraetotara River at Te Awanga site is monitored for state of the environment water quality and ecology.

The Maraetotara River at Waimarama Road site is a HBRC fresh water quality & ecology monitoring site. An enhancement project by the Maraetotara Tree Trust volunteers has been here since 2003.

Located in the middle of the Waiau catchment, the Mararoa is a braided river system with the banks at The Key dominated by willows. Water quality data is collected here monthly as part of Environment Southland's State of the Environment monitoring.

Located mid catchment, in an area fed by native forest and pastoral farming. The cobble dominated sampling area is located directly above the control gates and confluence with the Waiau River. Water quality data is collected here monthly and macroinvertebrate data annually as part of Environment Sou...

The Marlborough District Council is a unitary authority which combines the functions of both a District council and Regional Council. Its area includes the Wairau fault, a branch of the Alpine fault, which divides Marlborough into two distinct geographical areas approximately north and south of the...

The Marokopa River at Speedies Rd is a water quality site. The river is soft-bottomed with the substrate consisting of mud/silt at the monitoring site. The river banks have some riparian cover in the vicinity of the monitoring site.

The Mary Burn is in the Mackenzie basin area and is a tributary of the Tekapo River. It is classifed as an upland spring-fed system.  Environment Canterbury currently sample water quality monthly whislt macroinvertebrates are sampled once annually during summer as part of the annual aqautic ecosyste...

The Mason River is a mountain-fed tributary of the Waiau River, which is monitored for water quality just north of the Waiau township at the SH70, Inland Rd Bridge.