News Video | Policy | GPs | Hospitals | Medical | Mental Health | Welfare | Search


New Cryptosporidium Water Standards Delayed

Tightening of Ministry of Health Cryptosporidium drinking-water standards delayed

A new Ministry of Health water standard that would lower the existing limit of the fine particles in drinking water left over from filtering and treating it, has been deferred.

The new standard, which was planned to be in force by the first of January next year, sets lower limits for turbidity (due to particles) to reduce the risk from Cryptosporidium, a common contaminant in New Zealand waters. This can cause diarrhoea and other more serious problems in some people.

A set of revised water standards will come into force in July 2005. They will allow alternative ways of reducing the risk from Cryptosporidium from water treatment plants that cannot meet the new turbidity standard.

To enable suppliers to take advantage of the new options in the revised standard, the planned amendments will be delayed until July 2005.

The Drinking-Water Standards for New Zealand 2000 required that by 1 January 2005, 95 per cent of turbidity measurements on the filter effluent from a chemical coagulation and filtration treatment unit should not exceed 0.1 turbidity units (NTU).

This target was set to protect drinking-water consumers from Cryptosporidium. This standard was based on chemical coagulation and filtration being the only treatment received by the water.

New knowledge has made it possible to incorporate an allowance for the additional effect of other types of treatment in the revised Drinking-Water Standards for New Zealand 2005. This will provide alternative options for providing protection from Cryptosporidium. With these additional treatments in place, sufficient protection against Cryptosporidium is provided and it is not be necessary for the 0.1 NTU turbidity requirement to be met.

Accordingly, the Director-General of Health has authorised the 0.1 NTU requirement that was due to come into effect on the 1 January 2005 being held in abeyance until the revised Drinking-Water Standards for New Zealand 2005 come into effect on 1 July 2005.

© Scoop Media

Culture Headlines | Health Headlines | Education Headlines


Howard Davis: Emerald Fennell's Promising Young Woman'

The Guardian needed not one, but three reviews to do justice to Fennell's unsettling approach, which indicates exactly how ambiguous and controversial its message really is. More>>

Howard Davis: Jill Trevelyan's Rita Angus

Although Angus has become one of Aotearoa’s best-loved painters, the story of her life remained little known and poorly understood before Jill Trevelyan's acclaimed and revelatory biography, which won the Non Fiction Award at the Montana New Zealand Book Awards in 2009, and has now been republished by Te Papa press. More>>

Howard Davis: The Back of the Painting

Painting conservators are the forensic pathologists of the art world. While they cannot bring their subjects back to life, they do provide fascinating insights into the precise circumstances of a painting's creation, its material authenticity, and constructive methodology. More>>

Howard Davis: Black Panthers on the Prowl

A passionate and gripping political drama from Shaka King, this is an informative and instructive tale of human frailty that centers around the charismatic Chicago Black Panther leader Fred Hampton, who was murdered at the age of twenty-one during a police raid. More>>

Howard Davis: Controlling the High Ground

Stephen Johnson's raw and angry film not only poses important questions with scrupulous authenticity, but also provides a timely reminder of the genocidal consequences of casual bigotry and xenophobia. More>>

Howard Davis: Dryzabone - Robert Conolly's The Dry

After the terrible devastation caused by last year’s bushfires, which prompted hundreds of Australians to shelter in the ocean to escape incineration and destroyed uncountable amounts of wildlife, The Dry has been released during a totally different kind of dry spell. More>>

Howard Davis: Hit the Road, Jack - Chloé Zhao's Nomadland

Nomadland is perhaps the ultimately 'road' movie as it follows a group of dispossessed and disenfranchised vagabonds who find a form of communal refuge in camp sites and trailer parks after the economic contraction of 2008. More>>



  • Wellington
  • Christchurch
  • Auckland