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Document library Effects on Water Quality of a 1080 Possum Poisoning Operation by Manual Bait Application

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Category
  • Environmental monitoring > Water quality
  • Title Effects on Water Quality of a 1080 Possum Poisoning Operation by Manual Bait Application
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    Date published 1 February 2000
    GWRC Publication No Wairarapa report 00/01
    Abstract A substantial database exists on water quality after aerial 1080 possum
    and rabbit poisoning operations in New Zealand. However, no water
    quality investigations have been undertaken to assess the effect of a
    ground-based 1080 poisoning operation. This is due to the perception
    that manual application of toxic bait is less likely to result in significant
    quantities of bait entering watercourses compared to aerial application.

    A meeting with Dr Gillian Durham, the then Director of Public Health, at the
    Ministry of Health on 19 February 1999, discussed model permit
    conditions, in particular the requirements for drinking water supplies and
    monitoring. At the meeting it was agreed that the perceived risk from
    ground applications of 1080 was much lower than from aerial applications
    and that was why statutory requirements were much less involved for the
    former.

    It was agreed that the Wellington Regional Council would monitor a
    ground 1080 operation and report on water quality effects, so that the
    Ministry could promulgate national advice on the appropriate approach to
    ground application of 1080.

    This study provides support for the assertion that ground-based 1080
    possum-poisoning operations do not have a measurable effect on water
    quality.
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