Andy Kirkwood: Water treatment: Don’t be hasty

Saturday May 23, 2020 Published in Letters to the Editor

Dear editor,

Anticipating an economic recovery strategy that will borrow from New Zealand's post-Covid push to green-light spade-ready infrastructure projects, I observe that Mark Brown is back on the chemical water treatment campaign trail.

In March, a court-appointed expert raised a concern about the Te Mato Vai water treatment system; purportedly that the design of the settlement tank would allow chemically-treated water to overflow to the stream.

The use of poly-aluminium chloride (PACl) risks environmental degradation.

The public were advised that new water authority To Tatou Vai has commissioned an Environmental Impact Assessment on PACl-use.

The Government intends to proceed with a separate six-month PACl trial, despite not having a permit to do so.

The Government claims the trial is necessary to inform the environmental impact assessment.

This claim is not supported by the GHD technical documentation, the Court-expert assessment, or the opinion of the consultancy firm preparing the To Tatou Vai environmental impact assessment submission. The Government’s claim requiring a trial is necessary is a fiction.

For those managing Te Mato Vai Project, the importance of quality assurance processes should by now be evident; along with the mounting cost of non-compliance.

Rome wasn't built in a day, and turning on the chemicals is no overnight decision.

Andy Kirkwood
Te Vai Ora Maori

1 comment

  • Comment Link Steph oberg Monday, 25 May 2020 11:05 posted by Steph oberg

    The PCAI trial should be clawed back. whats behind their determination ??? Its obviously not care for the environmental integrity, health and sustainability of the island.

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