Investment in infrastructure such as water, wastewater and utilities is designed to support the pattern and timing of growth.
Water supply is a critical issue, requiring consideration of provision and allocation from surface and groundwater sources and the siting of reservoirs to avoid adverse landscape and cultural impact.
Wastewater treatment for the main urban area continues to centre on Te Maunga, with an ocean outfall. New technology improves the quality of the discharge. Water conservation and reuse reduces the amount of discharge relative to population growth.
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Alternative technologies are continually reviewed and introduced as issues of cost, risk and long term effectiveness are addressed. An integrated approach is taken to sustainable infrastructure by adopting a best practicable option method.
Small scale pilot programmes to test alternatives are also undertaken.
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