Otago Daily Times

Still lots of questions to be answered about water

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THE recent detection of sporadic excessive lead levels in the

Waikouaiti and Karitane water supply is justifiabl­y concerning, but there are wider issues relating to water safety.

The Institute of Environmen­tal Science and Research and Ministry of Health reports for 201819 identify the Waikouaiti supply as compliant for infectious disease and chemical contaminat­ion but not with the Health Act, as there is no water safety plan.

Other Dunedin water schemes do have safety plans. This seems inexcusabl­e as the catchment with bordering mining activity and extensive pastoral farming would appear to present a greater risk than, for example, the Deep Stream catchment serving much of Dunedin.

Systematic risk examinatio­n required through the safety plan would allow risks not covered by routine testing to be evaluated. For the Waikouaiti supply, this would include potential contaminat­ion from current and historic mining activities or from farm dump sites.

The Ministry of Health identifies safety plans to be of highest significan­ce, so why is there no safety plan for the Waikouaiti scheme?

The ESR report also identifies the Waikouaiti supply as ungraded. Most Dunedin residents can have confidence in a highgrade water supply.

Why does the Waikouaiti scheme not have a grade, and at a national level, why are ungraded schemes permitted?

Ruth Ferguson

Waikouaiti

Are Trevor Mallard and Rawiri Waititi sending each other mixed messages?

Neil Callick

Otematata

AT a time when millions of people in the world are displaced from their homes, thousands have died from a virus that has swept the world and jobs have been lost in its wake, children in some countries are still unable to go to school, and huge protests are taking place in Russia, Myanmar and the US, does the requiremen­t to wear a tie in the debating chamber of Parliament really constitute a breach of rights of indigenous people?

Get over it. Wear a tie and a taonga, and get on with what’s important. Clare Hamel

Kenmure

[Speaker Trevor Mallard announced on Wednesday night that it will no longer be compulsory for male MPs to wear ties at Parliament. — Ed.]

A selection of the best comments on the topical subjects on Otago Daily Times social media platforms.

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 ?? PHOTO: THE NEW ZEALAND HERALD ?? Maori Party coleader Rawiri Waititi wearing a tiki, instead of a tie, in Parliament on Tuesday.
PHOTO: THE NEW ZEALAND HERALD Maori Party coleader Rawiri Waititi wearing a tiki, instead of a tie, in Parliament on Tuesday.
 ?? PHOTO: LINDA ROBERTSON ?? A concrete trough in Factory Rd, Mosgiel.
PHOTO: LINDA ROBERTSON A concrete trough in Factory Rd, Mosgiel.

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