Environmental CSI of the Okeover stream in Christchurch

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Conference Contributions - Other
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University of Canterbury. Civil and Natural Resources Engineering
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Date
2009
Authors
Wicke, D.
O’Sullivan, A.D.
Cochrane, T.A.
Abstract

The Okeover stream was originally spring-fed but now primarily receives aquifer water used to cool buildings at the University of Canterbury. The lowered water table and displaced stream source results from nearby urbanisation. While its perennial reach was the focus of restoration efforts since 1998, it is classified as a highly disturbed ecosystem. The upper ephemeral section located offcampus relies on >60 variable stormwater discharge conduits for flow. Water quality and in-stream fine sediments are believed to inhibit biota recovery in this ecosystem. We quantified key metal contributions to the Okeover and its current chemical signature to prioritise recovery options.

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Citation
Wicke D., O’Sullivan A.D., Cochrane T.A. (2009) Environmental CSI of the Okeover stream in Christchurch. Whangarei, New Zealand: The New Zealand Hydrological & Freshwater Sciences Societies Joint Conference, 23-27 Nov 2009.
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