Water Quality

Seven farming leaders have pledged to make New Zealand's rivers swimmable for the next generations, saying it is the right thing to do.

Millions of litres of highly toxic water is escaping from a derelict coal mine into Sydney's drinking water catchment, new scientific research shows.

Dunedin City Council is lifting the boil water notice in the city after three days of clear test results.

Almost 75 percent of people believe agriculture and horticulture should be charged for water, an online survey has found.

Failing to comply with drinking water safety standards and training have come under fire at the Havelock North inquiry.

The deployment of a new high-tech buoy in Wellington means scientists will no longer have to wait for good weather to check water quality.

Caddisflies, mayflies and stoneflies are considered 'canaries of the waterways' as they thrive when water quality is good and the first to disappear when it isn't.

The dairy industry is responsible for high levels of E coli found near the country's largest freshwater springs, a water quality advocate says. Audio

A man left critically ill by last year's water contamination crisis in Havelock North wants the councils in charge sued.

Scientists have been told to conduct their debates according to the science - and not the personalities - in a letter sent by the Association of Scientists.

Agribusiness consultant Deane Carson is encouraging farmers to use petrifilm E.coli count plate kits to test water quality levels on their farms in Southland.

Lower Hutt's water supply will probably require permanent chlorination, as officials struggle to find out how the aquifer has become contaminated.

Opinion - Another day, another absolute cowpat of a freshwater report card, Dave Hansford writes.