Emergency reservoir for Porirua
Wellington Regional Council will consider the feasibility of an emergency water reservoir on the outskirts of Porirua to help resupply residents more quickly after a big earthquake.
At their December meeting, councillors approved a feasibility study for a possible 500-millionlitre reservoir costing an estimated $ 19 million on a 100-hectare site near Takapu Rd.
From the hilltop site, gravity would push the water to Porirua, Wellington and, if necessary, the Hutt Valley without power.
Council staff were authorised to negotiate an option to buy the land from Landcorp if the project proved viable.
The reservoir’s capacity would be sufficient to supply Porirua and Wellington City for about 100 days at emergency levels of consumption while repairs to pipes and other infrastructure were carried out. Council chairwoman Fran Wilde declared a conflict of interest and left the meeting for the discussions.
After the meeting, she said pursuing the reservoir option was an integral part of the council’s longterm commitment to earthquake strengthening infrastructure and making preparations to restore services as quickly as possible.
‘‘During the past 20 years we have spent more than $20m on quake-strengthening work.’’
She said the pipeline from the main Te Marua water treatment plant to Porirua and Wellington would be seriously damaged because it crossed the Wellington Fault three times, and repairs could take many weeks to complete.